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Solving again the MPI comm bug with FFTs

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This commit is contained in:
Guido Cossu
2017-10-25 10:24:14 +01:00
parent 27936900e6
commit 8309f2364b
7 changed files with 21 additions and 0 deletions
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6
lib/communicator/Communicator_mpi.cc
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@ -52,6 +52,12 @@ void CartesianCommunicator::Init(int *argc, char ***argv) {
MPI_Comm_dup (MPI_COMM_WORLD,&communicator_world);
ShmInitGeneric();
}
CartesianCommunicator::~CartesianCommunicator(){
 if (communicator && !MPI::Is_finalized())
 MPI_Comm_free(&communicator);
}
void CartesianCommunicator::GlobalSum(uint32_t &u){
int ierr=MPI_Allreduce(MPI_IN_PLACE,&u,1,MPI_UINT32_T,MPI_SUM,communicator);
assert(ierr==0);