+ xbt_free(*request);
+ *request = MPI_REQUEST_NULL;
+}
+
+MPI_Request smpi_isend_init(void *buf, int count, MPI_Datatype datatype,
+ int dst, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ build_request(buf, count, datatype, smpi_comm_rank(comm), dst, tag,
+ comm, NON_PERSISTENT | SEND);
+
+ return request;
+}
+
+MPI_Request smpi_mpi_isend(void *buf, int count, MPI_Datatype datatype,
+ int dst, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ smpi_isend_init(buf, count, datatype, dst, tag, comm);
+
+ smpi_mpi_start(request);
+ return request;
+}
+
+MPI_Request smpi_irecv_init(void *buf, int count, MPI_Datatype datatype,
+ int src, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ build_request(buf, count, datatype, src, smpi_comm_rank(comm), tag,
+ comm, NON_PERSISTENT | RECV);
+
+ return request;
+}
+
+MPI_Request smpi_mpi_irecv(void *buf, int count, MPI_Datatype datatype,
+ int src, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ smpi_irecv_init(buf, count, datatype, src, tag, comm);
+
+ smpi_mpi_start(request);
+ return request;
+}
+
+void smpi_mpi_recv(void *buf, int count, MPI_Datatype datatype, int src,
+ int tag, MPI_Comm comm, MPI_Status * status)
+{
+ MPI_Request request;
+
+ request = smpi_mpi_irecv(buf, count, datatype, src, tag, comm);
+ smpi_mpi_wait(&request, status);
+}
+
+
+
+void smpi_mpi_send(void *buf, int count, MPI_Datatype datatype, int dst,
+ int tag, MPI_Comm comm)
+{
+ MPI_Request request;
+ request = smpi_mpi_isend(buf, count, datatype, dst, tag, comm);
+ smpi_mpi_wait(&request, MPI_STATUS_IGNORE);
+}
+
+void smpi_mpi_sendrecv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ int dst, int sendtag, void *recvbuf, int recvcount,
+ MPI_Datatype recvtype, int src, int recvtag,
+ MPI_Comm comm, MPI_Status * status)
+{
+ MPI_Request requests[2];
+ MPI_Status stats[2];
+
+ requests[0] =
+ smpi_isend_init(sendbuf, sendcount, sendtype, dst, sendtag, comm);
+ requests[1] =
+ smpi_irecv_init(recvbuf, recvcount, recvtype, src, recvtag, comm);
+ smpi_mpi_startall(2, requests);
+ smpi_mpi_waitall(2, requests, stats);
+ if(status != MPI_STATUS_IGNORE) {
+ // Copy receive status
+ memcpy(status, &stats[1], sizeof(MPI_Status));
+ }
+}
+
+int smpi_mpi_get_count(MPI_Status * status, MPI_Datatype datatype)
+{
+ return status->count / smpi_datatype_size(datatype);
+}
+
+static void finish_wait(MPI_Request * request, MPI_Status * status)
+{
+ MPI_Request req = *request;
+ // if we have a sender, we should use its data, and not the data from the receive
+ if((req->action)&&
+ (req->src==MPI_ANY_SOURCE || req->tag== MPI_ANY_TAG))
+ req = (MPI_Request)SIMIX_comm_get_src_data((*request)->action);
+
+ if(status != MPI_STATUS_IGNORE) {
+ status->MPI_SOURCE = req->src;
+ status->MPI_TAG = req->tag;
+ status->MPI_ERROR = MPI_SUCCESS;
+ // FIXME: really this should just contain the count of receive-type blocks,
+ // right?
+ status->count = req->size;
+ }
+ req = *request;
+
+ print_request("Finishing", req);
+ if(req->flags & NON_PERSISTENT) {
+ smpi_mpi_request_free(request);
+ } else {
+ req->action = NULL;
+ }
+}