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switch back to serialized; wrong results on single too

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This commit is contained in:
nmeyer-ur 2020-06-15 15:39:39 +02:00
parent cc958aa9ed
commit 465856331a
1 changed files with 4 additions and 3 deletions
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7
Grid/communicator/Communicator_mpi3.cc
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@ -48,17 +48,18 @@ void CartesianCommunicator::Init(int *argc, char ***argv)
#if defined (A64FX) || defined (A64FXFIXEDSIZE)
#ifndef TOFU
#define TOFU
#pragma message ("TOFU network / MPI_THREAD_SINGLE")
#pragma message ("TOFU network / MPI_THREAD_SERIALIZED")
#endif
#endif
#if defined (TOFU) // FUGAKU, credits go to Issaku Kanamori
nCommThreads=1;
MPI_Init(argc,argv);
// wrong results here too
//MPI_Init(argc,argv);
// comms-overlap leads to wrong results in Benchmark_wilson even on single node MPI runs
// other comms schemes are ok
//MPI_Init_thread(argc,argv,MPI_THREAD_SERIALIZED,&provided);
MPI_Init_thread(argc,argv,MPI_THREAD_SERIALIZED,&provided);
#else
MPI_Init_thread(argc,argv,MPI_THREAD_MULTIPLE,&provided);
#endif