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Adding persistent communicators

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This commit is contained in:
paboyle
2016-07-08 17:16:08 +01:00
parent c667d9fdcc
commit ef97e32152
12 changed files with 347 additions and 95 deletions
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35
lib/communicator/Communicator_mpi.cc
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@ -144,6 +144,28 @@ void CartesianCommunicator::SendRecvPacket(void *xmit,
}
// Basic Halo comms primitive
// Basic Halo comms primitive
void CartesianCommunicator::SendToRecvFromInit(std::vector<CommsRequest_t> &list,
void *xmit,
int dest,
void *recv,
int from,
int bytes)
{
MPI_Request xrq;
MPI_Request rrq;
int rank = _processor;
int ierr;
ierr =MPI_Send_init(xmit, bytes, MPI_CHAR,dest,_processor,communicator,&xrq);
ierr|=MPI_Recv_init(recv, bytes, MPI_CHAR,dest,_processor,communicator,&rrq);
assert(ierr==0);
list.push_back(xrq);
list.push_back(rrq);
}
void CartesianCommunicator::SendToRecvFromBegin(std::vector<CommsRequest_t> &list)
{
MPI_Startall(list.size(),&list[0]);
}
void CartesianCommunicator::SendToRecvFromBegin(std::vector<CommsRequest_t> &list,
void *xmit,
int dest,
@ -151,17 +173,8 @@ void CartesianCommunicator::SendToRecvFromBegin(std::vector<CommsRequest_t> &lis
int from,
int bytes)
{
MPI_Request xrq;
MPI_Request rrq;
int rank = _processor;
int ierr;
ierr =MPI_Isend(xmit, bytes, MPI_CHAR,dest,_processor,communicator,&xrq);
ierr|=MPI_Irecv(recv, bytes, MPI_CHAR,from,from,communicator,&rrq);
assert(ierr==0);
list.push_back(xrq);
list.push_back(rrq);
SendToRecvFromInit(list,xmit,dest,recv,from,bytes);
SendToRecvFromBegin(list);
}
void CartesianCommunicator::SendToRecvFromComplete(std::vector<CommsRequest_t> &list)
{