int MPIC_Sendrecv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
int dest, int sendtag, void *recvbuf, int recvcount,
MPI_Datatype recvtype, int source, int recvtag,
MPI_Comm comm, MPI_Status *status)
{
MPID_Request *recv_req_ptr=NULL, *send_req_ptr=NULL;
int mpi_errno, context_id;
MPID_Comm *comm_ptr = NULL;
MPIDI_STATE_DECL(MPID_STATE_MPIC_SENDRECV);
MPIDI_PT2PT_FUNC_ENTER_BOTH(MPID_STATE_MPIC_SENDRECV);
MPID_Comm_get_ptr( comm, comm_ptr );
context_id = (comm_ptr->comm_kind == MPID_INTRACOMM) ?
MPID_CONTEXT_INTRA_COLL : MPID_CONTEXT_INTER_COLL;
mpi_errno = MPID_Irecv(recvbuf, recvcount, recvtype, source, recvtag,
comm_ptr, context_id, &recv_req_ptr);
if (mpi_errno) { MPIU_ERR_POP(mpi_errno); }
mpi_errno = MPID_Isend(sendbuf, sendcount, sendtype, dest, sendtag,
comm_ptr, context_id, &send_req_ptr);
if (mpi_errno) { MPIU_ERR_POP(mpi_errno); }
mpi_errno = MPIC_Wait(send_req_ptr);
if (mpi_errno) { MPIU_ERR_POP(mpi_errno); }
mpi_errno = MPIC_Wait(recv_req_ptr);
if (mpi_errno) { MPIU_ERR_POPFATAL(mpi_errno); }
if (status != MPI_STATUS_IGNORE)
*status = recv_req_ptr->status;
mpi_errno = recv_req_ptr->status.MPI_ERROR;
MPID_Request_release(send_req_ptr);
MPID_Request_release(recv_req_ptr);
fn_fail:
/* --BEGIN ERROR HANDLING-- */
MPIDI_PT2PT_FUNC_EXIT_BOTH(MPID_STATE_MPIC_SENDRECV);
return mpi_errno;
/* --END ERROR HANDLING-- */
}
int MPIC_Sendrecv(const void *sendbuf, MPI_Aint sendcount, MPI_Datatype sendtype,
int dest, int sendtag, void *recvbuf, MPI_Aint recvcount,
MPI_Datatype recvtype, int source, int recvtag,
MPID_Comm *comm_ptr, MPI_Status *status, mpir_errflag_t *errflag)
{
int mpi_errno = MPI_SUCCESS;
int context_id;
MPI_Status mystatus;
MPID_Request *recv_req_ptr = NULL, *send_req_ptr = NULL;
MPIDI_STATE_DECL(MPID_STATE_MPIC_SENDRECV);
MPIDI_FUNC_ENTER(MPID_STATE_MPIC_SENDRECV);
MPIU_DBG_MSG_S(PT2PT, TYPICAL, "IN: errflag = %s", *errflag?"TRUE":"FALSE");
MPIU_ERR_CHKANDJUMP1((sendcount < 0), mpi_errno, MPI_ERR_COUNT,
"**countneg", "**countneg %d", sendcount);
MPIU_ERR_CHKANDJUMP1((recvcount < 0), mpi_errno, MPI_ERR_COUNT,
"**countneg", "**countneg %d", recvcount);
context_id = (comm_ptr->comm_kind == MPID_INTRACOMM) ?
MPID_CONTEXT_INTRA_COLL : MPID_CONTEXT_INTER_COLL;
if (status == MPI_STATUS_IGNORE) status = &mystatus;
switch(*errflag) {
case MPIR_ERR_NONE:
break;
case MPIR_ERR_PROC_FAILED:
MPIR_TAG_SET_PROC_FAILURE_BIT(sendtag);
default:
MPIR_TAG_SET_ERROR_BIT(sendtag);
}
mpi_errno = MPID_Irecv(recvbuf, recvcount, recvtype, source, recvtag,
comm_ptr, context_id, &recv_req_ptr);
if (mpi_errno) MPIU_ERR_POP(mpi_errno);
mpi_errno = MPID_Isend(sendbuf, sendcount, sendtype, dest, sendtag,
comm_ptr, context_id, &send_req_ptr);
if (mpi_errno) MPIU_ERR_POP(mpi_errno);
mpi_errno = MPIC_Wait(send_req_ptr, errflag);
if (mpi_errno) MPIU_ERR_POP(mpi_errno);
mpi_errno = MPIC_Wait(recv_req_ptr, errflag);
if (mpi_errno) MPIU_ERR_POPFATAL(mpi_errno);
*status = recv_req_ptr->status;
if (mpi_errno == MPI_SUCCESS) {
mpi_errno = recv_req_ptr->status.MPI_ERROR;
if (mpi_errno == MPI_SUCCESS) {
mpi_errno = send_req_ptr->status.MPI_ERROR;
}
}
MPID_Request_release(send_req_ptr);
MPID_Request_release(recv_req_ptr);
fn_exit:
MPIU_DBG_MSG_D(PT2PT, TYPICAL, "OUT: errflag = %d", *errflag);
MPIDI_FUNC_EXIT(MPID_STATE_MPIC_SENDRECV);
return mpi_errno;
fn_fail:
if (send_req_ptr)
MPID_Request_release(send_req_ptr);
if (recv_req_ptr)
MPID_Request_release(recv_req_ptr);
goto fn_exit;
}
int MPIR_Datatype_init_names(void)
{
#ifdef HAVE_ERROR_CHECKING
static const char FCNAME[] = "MPIR_Datatype_init_names";
#endif
int mpi_errno = MPI_SUCCESS;
int i;
MPID_Datatype *datatype_ptr = NULL;
MPIU_THREADSAFE_INIT_DECL(needsInit);
if (needsInit) {
MPIU_THREADSAFE_INIT_BLOCK_BEGIN(needsInit);
/* Make sure that the basics have datatype structures allocated
* and filled in for them. They are just integers prior to this
* call.
*/
mpi_errno = MPIR_Datatype_builtin_fillin();
if (mpi_errno != MPI_SUCCESS) {
MPIU_ERR_POPFATAL(mpi_errno);
}
/* For each predefined type, ensure that there is a corresponding
object and that the object's name is set */
for (i=0; mpi_names[i].name != 0; i++) {
/* The size-specific types may be DATATYPE_NULL, as might be those
based on 'long long' and 'long double' if those types were
disabled at configure time. */
if (mpi_names[i].dtype == MPI_DATATYPE_NULL) continue;
MPID_Datatype_get_ptr(mpi_names[i].dtype, datatype_ptr);
if (datatype_ptr < MPID_Datatype_builtin ||
datatype_ptr > MPID_Datatype_builtin + MPID_DATATYPE_N_BUILTIN)
{
MPIU_ERR_SETFATALANDJUMP1(mpi_errno,MPI_ERR_INTERN,
"**typeinitbadmem","**typeinitbadmem %d", i);
}
if (!datatype_ptr) {
MPIU_ERR_SETFATALANDJUMP1(mpi_errno,MPI_ERR_INTERN,
"**typeinitfail", "**typeinitfail %d", i - 1);
}
MPIU_DBG_MSG_FMT(DATATYPE,VERBOSE,(MPIU_DBG_FDEST,
"mpi_names[%d].name = %p", i, mpi_names[i].name));
MPIU_Strncpy(datatype_ptr->name, mpi_names[i].name,
MPI_MAX_OBJECT_NAME);
}
/* Handle the minloc/maxloc types */
for (i=0; mpi_maxloc_names[i].name != 0; i++) {
/* types based on 'long long' and 'long double' may be disabled at
configure time, and their values set to MPI_DATATYPE_NULL. skip
those types. */
if (mpi_maxloc_names[i].dtype == MPI_DATATYPE_NULL) continue;
MPID_Datatype_get_ptr(mpi_maxloc_names[i].dtype,
datatype_ptr);
if (!datatype_ptr) {
MPIU_ERR_SETFATALANDJUMP(mpi_errno,MPI_ERR_INTERN, "**typeinitminmaxloc");
}
MPIU_Strncpy(datatype_ptr->name, mpi_maxloc_names[i].name,
MPI_MAX_OBJECT_NAME);
}
MPIU_THREADSAFE_INIT_CLEAR(needsInit);
fn_fail:;
MPIU_THREADSAFE_INIT_BLOCK_END(needsInit);
}
return mpi_errno;
}