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Benchmark prep

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This commit is contained in:
Peter Boyle
2017-08-25 09:25:54 +01:00
parent b49bec0cec
commit c3b1263e75
10 changed files with 494 additions and 71 deletions
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19
lib/communicator/Communicator_mpit.cc
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@ -242,11 +242,24 @@ double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsReques
int recv_from_rank,
int bytes,int dir)
{
StencilSendToRecvFrom(xmit,xmit_to_rank,recv,recv_from_rank,bytes,dir);
int myrank = _processor;
int ierr;
assert(dir < communicator_halo.size());
// std::cout << " sending on communicator "<<dir<<" " <<communicator_halo[dir]<<std::endl;
// Give the CPU to MPI immediately; can use threads to overlap optionally
MPI_Request req[2];
MPI_Irecv(recv,bytes,MPI_CHAR,recv_from_rank,recv_from_rank, communicator_halo[dir],&req[1]);
MPI_Isend(xmit,bytes,MPI_CHAR,xmit_to_rank ,myrank , communicator_halo[dir],&req[0]);
list.push_back(req[0]);
list.push_back(req[1]);
return 2.0*bytes;
}
void CartesianCommunicator::StencilSendToRecvFromComplete(std::vector<CommsRequest_t> &waitall,int dir)
{
// Do nothing
int nreq=waitall.size();
MPI_Waitall(nreq, &waitall[0], MPI_STATUSES_IGNORE);
};
double CartesianCommunicator::StencilSendToRecvFrom(void *xmit,
int xmit_to_rank,
@ -262,7 +275,7 @@ double CartesianCommunicator::StencilSendToRecvFrom(void *xmit,
// Give the CPU to MPI immediately; can use threads to overlap optionally
MPI_Request req[2];
MPI_Irecv(recv,bytes,MPI_CHAR,recv_from_rank,recv_from_rank, communicator_halo[dir],&req[1]);
MPI_Isend(xmit,bytes,MPI_CHAR,xmit_to_rank,myrank, communicator_halo[dir], &req[0]);
MPI_Isend(xmit,bytes,MPI_CHAR,xmit_to_rank ,myrank , communicator_halo[dir],&req[0]);
MPI_Waitall(2, req, MPI_STATUSES_IGNORE);
return 2.0*bytes;
}