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Hang in TL/CUDA for triggered reduce_scatterv #638
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Using TL/UCP (i.e. removing |
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Building from upstream/master, the following mpitest command leads to a hang on dgx node:
mpirun -x UCC_TL_CUDA_TUNE=inf -x UCC_TL_SHARP_TUNE=0 --mca coll ^hcoll -np 8 /.autodirect/mtrsysgwork/snordmann/ucc/build/test/mpi/ucc_test_mpi -d float32 -M cuda -v --triggered 1 -o sum -t world -r single:0 -c reduce_scatterv -m 512
here is a part of the printout with UCC_LOG_LEVEL=info:
Then, the program hangs.
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