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fix the resistive Alfven wave test with MPI #207

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merged 1 commit into from
Nov 5, 2023
Merged

fix the resistive Alfven wave test with MPI #207

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7 changes: 5 additions & 2 deletions test/MHD/ResistiveAlfvenWave/setup.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
// Analyse data to produce an output
void Analysis(DataBlock & data) {
double etot = 0;
double etotGlob;
IdefixArray4D<real> Vc = data.hydro->Vc;

idefix_reduce("Analysis", data.beg[KDIR],data.end[KDIR],
Expand All @@ -19,14 +20,16 @@ void Analysis(DataBlock & data) {
}, Kokkos::Sum<double>(etot));

#ifdef WITH_MPI
MPI_Reduce(MPI_IN_PLACE, &etot, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
MPI_Reduce(&etot, &etotGlob, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
#else
etotGlob = etot;
#endif

if(idfx::prank == 0) {
std::ofstream f;
f.open(FILENAME,std::ios::app);
f.precision(10);
f << std::scientific << data.t << "\t" << etot << std::endl;
f << std::scientific << data.t << "\t" << etotGlob << std::endl;
f.close();
}

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2 changes: 2 additions & 0 deletions test/MHD/ResistiveAlfvenWave/testme.py
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Expand Up @@ -39,3 +39,5 @@ def testMe(test):
test.reconstruction=2
test.mpi=False
testMe(test)
test.mpi=True
testMe(test)