petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:976 [0] DMCoarsen() at /home/firedrake/petsc/src/dm/interface/dm.c:3327

NotImplementedError

NotImplementedError

NotImplementedError

NotImplementedError

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_NEWTONLS() at /home/firedrake/petsc/src/snes/impls/ls/ls.c:221 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_FieldSplit() at /home/firedrake/petsc/src/ksp/pc/impls/fieldsplit/fieldsplit.c:586 [0] PCFieldSplitSetDefaults() at /home/firedrake/petsc/src/ksp/pc/impls/fieldsplit/fieldsplit.c:427 [0] DMCreateSubDM() at /home/firedrake/petsc/src/dm/interface/dm.c:2133

failed on setup with "worker 'gw7' crashed while running 'tests/regression/test_star_pc.py::test_star_equivalence[vector-petscasm]'"

failed on setup with "worker 'gw12' crashed while running 'tests/regression/test_star_pc.py::test_star_equivalence[vector-tinyasm]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:632 [0] PCMGFCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/fmg.c:37 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 1

failed on setup with "worker 'gw13' crashed while running 'tests/regression/test_star_pc.py::test_vanka_equivalence[mixed]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] DMPlexCreateExodusFromFile() at /home/firedrake/petsc/src/dm/impls/plex/plexexodusii.c:39 [0] No support for this operation for this object type [0] Loading meshes requires EXODUSII support. Reconfigure using --with-exodusii-dir or -download-exodusii

assert 18 <= 16 + where 18 = <built-in method getIterationNumber of petsc4py.PETSc.KSP object at 0x7f14cabc04f0>() + where <built-in method getIterationNumber of petsc4py.PETSc.KSP object at 0x7f14cabc04f0> = <petsc4py.PETSc.KSP object at 0x7f14cabc04f0>.getIterationNumber + where <petsc4py.PETSc.KSP object at 0x7f14cabc04f0> = <petsc4py.PETSc.SNES object at 0x7f14ca5465c0>.ksp + where <petsc4py.PETSc.SNES object at 0x7f14ca5465c0> = <firedrake.variational_solver.LinearVariationalSolver object at 0x7f14ccb21430>.snes

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] DMPlexCreateExodusFromFile() at /home/firedrake/petsc/src/dm/impls/plex/plexexodusii.c:39 [0] No support for this operation for this object type [0] Loading meshes requires EXODUSII support. Reconfigure using --with-exodusii-dir or -download-exodusii

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] DMPlexCreateExodusFromFile() at /home/firedrake/petsc/src/dm/impls/plex/plexexodusii.c:39 [0] No support for this operation for this object type [0] Loading meshes requires EXODUSII support. Reconfigure using --with-exodusii-dir or -download-exodusii

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] DMPlexCreateExodusFromFile() at /home/firedrake/petsc/src/dm/impls/plex/plexexodusii.c:39 [0] No support for this operation for this object type [0] Loading meshes requires EXODUSII support. Reconfigure using --with-exodusii-dir or -download-exodusii

NotImplementedError

NotImplementedError

NotImplementedError

NotImplementedError

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

failed on setup with "worker 'gw1' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Default-2-CG]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

failed on setup with "worker 'gw15' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Exact-2-N1curl]'"

failed on setup with "worker 'gw16' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Averaging-1-RT]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

failed on setup with "worker 'gw17' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Averaging-2-N1curl]'"

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:976 [0] DMCoarsen() at /home/firedrake/petsc/src/dm/interface/dm.c:3327

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:976 [0] DMCoarsen() at /home/firedrake/petsc/src/dm/interface/dm.c:3327

NotImplementedError

NotImplementedError

NotImplementedError

NotImplementedError

failed on setup with "worker 'gw4' crashed while running 'tests/regression/test_auxiliary_dm.py::test_auxiliary_dm'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2819 [0] PCPatch_ScatterLocal_Private() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2350 [0] VecGetArray() at /home/firedrake/petsc/src/vec/vec/interface/rvector.c:2025 [0] No support for this operation for this object type [0] Cannot get array for vector type "(null)"

failed on setup with "worker 'gw5' crashed while running 'tests/regression/test_star_pc.py::test_star_equivalence[vector-tinyasm]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:632 [0] PCMGFCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/fmg.c:37 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 1

failed on setup with "worker 'gw13' crashed while running 'tests/regression/test_star_pc.py::test_vanka_equivalence[mixed]'"

assert 18 <= 16 + where 18 = <built-in method getIterationNumber of petsc4py.PETSc.KSP object at 0x7fd89f5e4360>() + where <built-in method getIterationNumber of petsc4py.PETSc.KSP object at 0x7fd89f5e4360> = <petsc4py.PETSc.KSP object at 0x7fd89f5e4360>.getIterationNumber + where <petsc4py.PETSc.KSP object at 0x7fd89f5e4360> = <petsc4py.PETSc.SNES object at 0x7fd8a64d04a0>.ksp + where <petsc4py.PETSc.SNES object at 0x7fd8a64d04a0> = <firedrake.variational_solver.LinearVariationalSolver object at 0x7fd8a474aa80>.snes

NotImplementedError

NotImplementedError

NotImplementedError

NotImplementedError

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

failed on setup with "worker 'gw1' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Exact-2-CG]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

failed on setup with "worker 'gw15' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Averaging-2-RT]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

failed on setup with "worker 'gw16' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-N1curl]'"

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:976 [0] DMCoarsen() at /home/firedrake/petsc/src/dm/interface/dm.c:3327

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:976 [0] DMCoarsen() at /home/firedrake/petsc/src/dm/interface/dm.c:3327

failed on setup with "worker 'gw3' crashed while running 'tests/regression/test_auxiliary_dm.py::test_auxiliary_dm'"

failed on setup with "worker 'gw6' crashed while running 'tests/regression/test_star_pc.py::test_star_equivalence[vector-petscasm]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:83 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 37

failed on setup with "worker 'gw13' crashed while running 'tests/regression/test_star_pc.py::test_star_equivalence[mixed-petscasm]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:632 [0] PCMGFCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/fmg.c:37 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 1

failed on setup with "worker 'gw14' crashed while running 'tests/regression/test_star_pc.py::test_vanka_equivalence[mixed]'"

assert 18 <= 16 + where 18 = <built-in method getIterationNumber of petsc4py.PETSc.KSP object at 0x7f318522ef70>() + where <built-in method getIterationNumber of petsc4py.PETSc.KSP object at 0x7f318522ef70> = <petsc4py.PETSc.KSP object at 0x7f318522ef70>.getIterationNumber + where <petsc4py.PETSc.KSP object at 0x7f318522ef70> = <petsc4py.PETSc.SNES object at 0x7f318633d800>.ksp + where <petsc4py.PETSc.SNES object at 0x7f318633d800> = <firedrake.variational_solver.LinearVariationalSolver object at 0x7f3185d90f80>.snes

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

failed on setup with "worker 'gw1' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Default-2-RT]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

failed on setup with "worker 'gw16' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Default-2-CG]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

failed on setup with "worker 'gw17' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Exact-2-RT]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 2

failed on setup with "worker 'gw18' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Averaging-1-N1curl]'"

petsc4py.PETSc.Error: error code -1 [0] SNESSolve() at /home/firedrake/petsc/src/snes/interface/snes.c:4842 [0] SNESSolve_KSPONLY() at /home/firedrake/petsc/src/snes/impls/ksponly/ksponly.c:49 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_CG() at /home/firedrake/petsc/src/ksp/ksp/impls/cg/cg.c:170 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_MG() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:648 [0] PCApply_MG_Internal() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:626 [0] PCMGMCycle_Private() at /home/firedrake/petsc/src/ksp/pc/impls/mg/mg.c:27 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:900 [0] KSPSolve_Richardson() at /home/firedrake/petsc/src/ksp/ksp/impls/rich/rich.c:114 [0] KSP_PCApply() at /home/firedrake/petsc/include/petsc/private/kspimpl.h:411 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:522 [0] PCApply_PATCH() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2820 [0] PCApply_PATCH_Linear() at /home/firedrake/petsc/src/ksp/pc/impls/patch/pcpatch.c:2724 [0] KSPSolve() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:1075 [0] KSPSolve_Private() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:826 [0] KSPSetUp() at /home/firedrake/petsc/src/ksp/ksp/interface/itfunc.c:415 [0] PCSetUp() at /home/firedrake/petsc/src/ksp/pc/interface/precon.c:1071 [0] PCSetUp_LU() at /home/firedrake/petsc/src/ksp/pc/impls/factor/lu/lu.c:121 [0] MatLUFactorNumeric() at /home/firedrake/petsc/src/mat/interface/matrix.c:3307 [0] MatLUFactorNumeric_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:828 [0] MatLUFactor_SeqDense() at /home/firedrake/petsc/src/mat/impls/dense/seq/dense.c:807 [0] Zero pivot in LU factorization: https://petsc.org/release/faq/#zeropivot [0] Bad LU factorization 5

failed on setup with "worker 'gw19' crashed while running 'tests/multigrid/test_embedded_transfer.py::test_riesz[Averaging-2-N1curl]'"

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-1-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Default-2-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-1-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Exact-2-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-1-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-RT]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-RT]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.

subprocess.CalledProcessError: Command '['mpiexec', '-n', '1', '-genv', '_PYTEST_MPI_CHILD_PROCESS', '1', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-N1curl]', ':', '-n', '2', '/__w/firedrake/firedrake_venv/bin/python', '-m', 'pytest', '--runxfail', '-s', '-q', '/__w/firedrake/firedrake/tests/multigrid/test_embedded_transfer.py::test_riesz_parallel[Averaging-2-N1curl]', '--tb=no', '--no-summary', '--no-header', '--disable-warnings', '--show-capture=no']' returned non-zero exit status 1.