int MPID_Cancel_recv(MPID_Request * rreq)
{
MPIDI_STATE_DECL(MPID_STATE_MPID_CANCEL_RECV);
MPIDI_FUNC_ENTER(MPID_STATE_MPID_CANCEL_RECV);
MPIU_Assert(rreq->kind == MPID_REQUEST_RECV);
#if defined (_OSU_PSM_)
rreq->psm_flags |= PSM_RECV_CANCEL;
if(psm_do_cancel(rreq) == MPI_SUCCESS) {
*(rreq->cc_ptr) = 0;
// MPID_Request_release(rreq);
}
goto fn_exit;
#endif
#if defined(_OSU_MVAPICH_)
/* OSU-MPI2 requires extra step to finish rndv request */
MPIDI_CH3I_MRAILI_RREQ_RNDV_FINISH(rreq);
#endif /* defined(_OSU_MVAPICH_) */
if (MPIDI_CH3U_Recvq_DP(rreq))
{
MPIU_DBG_MSG_P(CH3_OTHER,VERBOSE,
"request 0x%08x cancelled", rreq->handle);
rreq->status.cancelled = TRUE;
rreq->status.count = 0;
MPID_REQUEST_SET_COMPLETED(rreq);
MPID_Request_release(rreq);
}
else
{
MPIU_DBG_MSG_P(CH3_OTHER,VERBOSE,
"request 0x%08x already matched, unable to cancel", rreq->handle);
}
fn_exit:
MPIDI_FUNC_EXIT(MPID_STATE_MPID_CANCEL_RECV);
return MPI_SUCCESS;
}
int MPID_nem_mx_cancel_recv(MPIDI_VC_t *vc, MPID_Request *rreq)
{
mx_request_t *mx_request = NULL;
mx_return_t ret;
uint32_t result;
int mpi_errno = MPI_SUCCESS;
int handled = FALSE;
mx_request = &(REQ_FIELD(rreq,mx_request));
/* FIXME this test is probably not correct with multiple netmods */
/* We need to know to which netmod a recv request actually "belongs" to */
if(mx_request != NULL)
{
ret = mx_cancel(MPID_nem_mx_local_endpoint,mx_request,&result);
MPIU_ERR_CHKANDJUMP1(ret != MX_SUCCESS, mpi_errno, MPI_ERR_OTHER, "**mx_cancel", "**mx_cancel %s", mx_strerror(ret));
if (result)
{
int found;
rreq->status.cancelled = TRUE;
found = MPIDI_CH3U_Recvq_DP(rreq);
MPIU_Assert(found);
rreq->status.count = 0;
MPID_REQUEST_SET_COMPLETED(rreq);
MPID_Request_release(rreq);
}
else
{
rreq->status.cancelled = FALSE;
MPIU_DBG_MSG_P(CH3_OTHER,VERBOSE,
"request 0x%08x already matched, unable to cancel", rreq->handle);
}
handled = TRUE;
}
fn_exit:
return mpi_errno;
fn_fail:
goto fn_exit;
}
/*
* Export the function to set a request as completed for use by
* the generalized request functions in mpich/src/pt2pt/greq_complete.c
*/
void MPID_Request_set_completed( MPID_Request *req )
{
MPID_REQUEST_SET_COMPLETED(req);
}
int MPIDI_Isend_self(const void * buf, int count, MPI_Datatype datatype, int rank, int tag, MPID_Comm * comm, int context_offset,
int type, MPID_Request ** request)
{
MPIDI_Message_match match;
MPID_Request * sreq;
MPID_Request * rreq;
MPIDI_VC_t * vc;
#if defined(MPID_USE_SEQUENCE_NUMBERS)
MPID_Seqnum_t seqnum;
#endif
int found;
int mpi_errno = MPI_SUCCESS;
MPIU_DBG_MSG(CH3_OTHER,VERBOSE,"sending message to self");
MPIDI_Request_create_sreq(sreq, mpi_errno, goto fn_exit);
MPIDI_Request_set_type(sreq, type);
MPIDI_Request_set_msg_type(sreq, MPIDI_REQUEST_SELF_MSG);
match.parts.rank = rank;
match.parts.tag = tag;
match.parts.context_id = comm->context_id + context_offset;
MPIU_THREAD_CS_ENTER(MSGQUEUE,);
rreq = MPIDI_CH3U_Recvq_FDP_or_AEU(&match, &found);
/* --BEGIN ERROR HANDLING-- */
if (rreq == NULL)
{
MPIU_Object_set_ref(sreq, 0);
MPIDI_CH3_Request_destroy(sreq);
sreq = NULL;
MPIU_ERR_SET1(mpi_errno, MPI_ERR_OTHER, "**nomem",
"**nomemuereq %d", MPIDI_CH3U_Recvq_count_unexp());
goto fn_exit;
}
/* --END ERROR HANDLING-- */
MPIDI_Comm_get_vc_set_active(comm, rank, &vc);
MPIDI_VC_FAI_send_seqnum(vc, seqnum);
MPIDI_Request_set_seqnum(sreq, seqnum);
MPIDI_Request_set_seqnum(rreq, seqnum);
rreq->status.MPI_SOURCE = rank;
rreq->status.MPI_TAG = tag;
if (found)
{
MPIDI_msg_sz_t data_sz;
/* we found a posted req, which we now own, so we can release the CS */
MPIU_THREAD_CS_EXIT(MSGQUEUE,);
MPIU_DBG_MSG(CH3_OTHER,VERBOSE,
"found posted receive request; copying data");
MPIDI_CH3U_Buffer_copy(buf, count, datatype, &sreq->status.MPI_ERROR,
rreq->dev.user_buf, rreq->dev.user_count, rreq->dev.datatype, &data_sz, &rreq->status.MPI_ERROR);
rreq->status.count = (int)data_sz;
MPID_REQUEST_SET_COMPLETED(rreq);
MPID_Request_release(rreq);
/* sreq has never been seen by the user or outside this thread, so it is safe to reset ref_count and cc */
MPIU_Object_set_ref(sreq, 1);
MPID_cc_set(&sreq->cc, 0);
}
else
{
if (type != MPIDI_REQUEST_TYPE_RSEND)