int MPID_Raccumulate(const void *origin_addr, int origin_count,
MPI_Datatype origin_datatype, int target_rank, MPI_Aint target_disp,
int target_count, MPI_Datatype target_datatype, MPI_Op op, MPIR_Win * win_ptr,
MPIR_Request ** request)
{
int mpi_errno = MPI_SUCCESS;
int dt_contig ATTRIBUTE((unused));
MPIR_Datatype*dtp;
MPI_Aint dt_true_lb ATTRIBUTE((unused));
intptr_t data_sz;
MPIR_Request *ureq;
MPIR_FUNC_VERBOSE_STATE_DECL(MPID_STATE_MPID_RACCUMULATE);
MPIR_FUNC_VERBOSE_ENTER(MPID_STATE_MPID_RACCUMULATE);
/* request-based RMA operations are only valid within a passive epoch */
MPIR_ERR_CHKANDJUMP(win_ptr->states.access_state != MPIDI_RMA_PER_TARGET &&
win_ptr->states.access_state != MPIDI_RMA_LOCK_ALL_CALLED &&
win_ptr->states.access_state != MPIDI_RMA_LOCK_ALL_ISSUED &&
win_ptr->states.access_state != MPIDI_RMA_LOCK_ALL_GRANTED,
mpi_errno, MPI_ERR_RMA_SYNC, "**rmasync");
/* Create user request, initially cc=1, ref=1 */
ureq = MPIR_Request_create(MPIR_REQUEST_KIND__RMA);
MPIR_ERR_CHKANDJUMP(ureq == NULL, mpi_errno, MPI_ERR_OTHER, "**nomemreq");
/* This request is referenced by user and ch3 by default. */
MPIR_Object_set_ref(ureq, 2);
MPIDI_Datatype_get_info(origin_count, origin_datatype, dt_contig, data_sz, dtp, dt_true_lb);
/* Enqueue or perform the RMA operation */
if (target_rank != MPI_PROC_NULL && data_sz != 0) {
mpi_errno = MPIDI_CH3I_Accumulate(origin_addr, origin_count,
origin_datatype, target_rank,
target_disp, target_count,
target_datatype, op, win_ptr, ureq);
if (mpi_errno != MPI_SUCCESS) {
MPIR_ERR_POP(mpi_errno);
}
}
else {
mpi_errno = MPID_Request_complete(ureq);
if (mpi_errno != MPI_SUCCESS) {
MPIR_ERR_POP(mpi_errno);
}
}
*request = ureq;
fn_exit:
MPIR_FUNC_VERBOSE_EXIT(MPID_STATE_MPID_RACCUMULATE);
return mpi_errno;
fn_fail:
goto fn_exit;
}
int MPID_Accumulate(const void *origin_addr, int origin_count, MPI_Datatype
origin_datatype, int target_rank, MPI_Aint target_disp,
int target_count, MPI_Datatype target_datatype, MPI_Op op, MPID_Win * win_ptr)
{
int mpi_errno = MPI_SUCCESS;
MPIDI_STATE_DECL(MPID_STATE_MPID_ACCUMULATE);
MPIDI_RMA_FUNC_ENTER(MPID_STATE_MPID_ACCUMULATE);
mpi_errno = MPIDI_CH3I_Accumulate(origin_addr, origin_count, origin_datatype,
target_rank, target_disp, target_count, target_datatype,
op, win_ptr, NULL);
fn_exit:
MPIDI_RMA_FUNC_EXIT(MPID_STATE_MPID_ACCUMULATE);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
fn_fail:
goto fn_exit;
/* --END ERROR HANDLING-- */
}
