int MPID_Irsend(const void * buf, int count, MPI_Datatype datatype, int rank, int tag, MPID_Comm * comm, int context_offset,
MPID_Request ** request)
{
MPIDI_CH3_Pkt_t upkt;
MPIDI_CH3_Pkt_ready_send_t * const ready_pkt = &upkt.ready_send;
MPIDI_msg_sz_t data_sz;
int dt_contig;
MPI_Aint dt_true_lb;
MPID_Datatype * dt_ptr;
MPID_Request * sreq;
MPIDI_VC_t * vc;
#if defined(MPID_USE_SEQUENCE_NUMBERS)
MPID_Seqnum_t seqnum;
#endif
int mpi_errno = MPI_SUCCESS;
MPIDI_STATE_DECL(MPID_STATE_MPID_IRSEND);
MPIDI_FUNC_ENTER(MPID_STATE_MPID_IRSEND);
MPIU_DBG_MSG_FMT(CH3_OTHER,VERBOSE,(MPIU_DBG_FDEST,
"rank=%d, tag=%d, context=%d",
rank, tag, comm->context_id + context_offset));
/* Check to make sure the communicator hasn't already been revoked */
if (comm->revoked &&
MPIR_AGREE_TAG != MPIR_TAG_MASK_ERROR_BITS(tag & ~MPIR_Process.tagged_coll_mask) &&
MPIR_SHRINK_TAG != MPIR_TAG_MASK_ERROR_BITS(tag & ~MPIR_Process.tagged_coll_mask)) {
MPIR_ERR_SETANDJUMP(mpi_errno,MPIX_ERR_REVOKED,"**revoked");
}
if (rank == comm->rank && comm->comm_kind != MPID_INTERCOMM)
{
mpi_errno = MPIDI_Isend_self(buf, count, datatype, rank, tag, comm, context_offset, MPIDI_REQUEST_TYPE_RSEND, &sreq);
goto fn_exit;
}
if (rank != MPI_PROC_NULL) {
MPIDI_Comm_get_vc_set_active(comm, rank, &vc);
#ifdef ENABLE_COMM_OVERRIDES
/* this needs to come before the sreq is created, since the override
* function is responsible for creating its own request */
if (vc->comm_ops && vc->comm_ops->irsend)
{
mpi_errno = vc->comm_ops->irsend( vc, buf, count, datatype, rank, tag, comm, context_offset, &sreq);
goto fn_exit;
}
#endif
}
MPIDI_Request_create_sreq(sreq, mpi_errno, goto fn_exit);
MPIDI_Request_set_type(sreq, MPIDI_REQUEST_TYPE_RSEND);
MPIDI_Request_set_msg_type(sreq, MPIDI_REQUEST_EAGER_MSG);
if (rank == MPI_PROC_NULL)
{
MPIU_Object_set_ref(sreq, 1);
MPID_cc_set(&sreq->cc, 0);
goto fn_exit;
}
MPIDI_Datatype_get_info(count, datatype, dt_contig, data_sz, dt_ptr, dt_true_lb);
MPIDI_Pkt_init(ready_pkt, MPIDI_CH3_PKT_READY_SEND);
ready_pkt->match.parts.rank = comm->rank;
ready_pkt->match.parts.tag = tag;
ready_pkt->match.parts.context_id = comm->context_id + context_offset;
ready_pkt->sender_req_id = MPI_REQUEST_NULL;
ready_pkt->data_sz = data_sz;
if (data_sz == 0)
{
MPIU_DBG_MSG(CH3_OTHER,VERBOSE,"sending zero length message");
sreq->dev.OnDataAvail = 0;
MPIDI_VC_FAI_send_seqnum(vc, seqnum);
MPIDI_Pkt_set_seqnum(ready_pkt, seqnum);
MPIDI_Request_set_seqnum(sreq, seqnum);
MPID_THREAD_CS_ENTER(POBJ, vc->pobj_mutex);
mpi_errno = MPIDI_CH3_iSend(vc, sreq, ready_pkt, sizeof(*ready_pkt));
MPID_THREAD_CS_EXIT(POBJ, vc->pobj_mutex);
/* --BEGIN ERROR HANDLING-- */
if (mpi_errno != MPI_SUCCESS)
{
MPID_Request_release(sreq);
sreq = NULL;
MPIR_ERR_SET(mpi_errno, MPI_ERR_OTHER, "**ch3|eagermsg");
goto fn_exit;
}
/* --END ERROR HANDLING-- */
goto fn_exit;
}
if (vc->ready_eager_max_msg_sz < 0 || data_sz + sizeof(MPIDI_CH3_Pkt_ready_send_t) <= vc->ready_eager_max_msg_sz) {
if (dt_contig) {
mpi_errno = MPIDI_CH3_EagerContigIsend( &sreq,
MPIDI_CH3_PKT_READY_SEND,
(char*)buf + dt_true_lb,
data_sz, rank, tag,
comm, context_offset );
}
else {
mpi_errno = MPIDI_CH3_EagerNoncontigSend( &sreq,
MPIDI_CH3_PKT_READY_SEND,
buf, count, datatype,
data_sz, rank, tag,
comm, context_offset );
/* If we're not complete, then add a reference to the datatype */
if (sreq && sreq->dev.OnDataAvail) {
sreq->dev.datatype_ptr = dt_ptr;
MPID_Datatype_add_ref(dt_ptr);
}
}
} else {
/* Do rendezvous. This will be sent as a regular send not as
a ready send, so the receiver won't know to send an error
if the receive has not been posted */
MPIDI_Request_set_msg_type( sreq, MPIDI_REQUEST_RNDV_MSG );
mpi_errno = vc->rndvSend_fn( &sreq, buf, count, datatype, dt_contig,
data_sz, dt_true_lb, rank, tag, comm,
context_offset );
if (sreq && dt_ptr != NULL) {
sreq->dev.datatype_ptr = dt_ptr;
MPID_Datatype_add_ref(dt_ptr);
}
}
fn_exit:
*request = sreq;
MPIU_DBG_STMT(CH3_OTHER,VERBOSE,{
if (sreq != NULL)
{
MPIU_DBG_MSG_P(CH3_OTHER,VERBOSE,"request allocated, handle=0x%08x", sreq->handle);
}
}
);
int MPID_Isend(const void * buf, int count, MPI_Datatype datatype, int rank,
int tag, MPID_Comm * comm, int context_offset,
MPID_Request ** request)
{
MPIDI_msg_sz_t data_sz;
int dt_contig;
MPI_Aint dt_true_lb;
MPID_Datatype * dt_ptr;
MPID_Request * sreq;
MPIDI_VC_t * vc=0;
#if defined(MPID_USE_SEQUENCE_NUMBERS)
MPID_Seqnum_t seqnum;
#endif
int eager_threshold = -1;
int mpi_errno = MPI_SUCCESS;
MPIDI_STATE_DECL(MPID_STATE_MPID_ISEND);
MPIDI_FUNC_ENTER(MPID_STATE_MPID_ISEND);
MPIU_DBG_MSG_FMT(CH3_OTHER,VERBOSE,(MPIU_DBG_FDEST,
"rank=%d, tag=%d, context=%d",
rank, tag, comm->context_id + context_offset));
if (rank == comm->rank && comm->comm_kind != MPID_INTERCOMM)
{
mpi_errno = MPIDI_Isend_self(buf, count, datatype, rank, tag, comm,
context_offset, MPIDI_REQUEST_TYPE_SEND, &sreq);
goto fn_exit;
}
if (rank != MPI_PROC_NULL) {
MPIDI_Comm_get_vc_set_active(comm, rank, &vc);
#ifdef ENABLE_COMM_OVERRIDES
/* this needs to come before the sreq is created, since the override
* function is responsible for creating its own request */
if (vc->comm_ops && vc->comm_ops->isend)
{
mpi_errno = vc->comm_ops->isend( vc, buf, count, datatype, rank, tag, comm, context_offset, &sreq);
goto fn_exit;
}
#endif
}
MPIDI_Request_create_sreq(sreq, mpi_errno, goto fn_exit);
MPIDI_Request_set_type(sreq, MPIDI_REQUEST_TYPE_SEND);
if (rank == MPI_PROC_NULL)
{
MPIU_Object_set_ref(sreq, 1);
MPID_cc_set(&sreq->cc, 0);
goto fn_exit;
}
MPIDI_Datatype_get_info(count, datatype, dt_contig, data_sz, dt_ptr,
dt_true_lb);
if (data_sz == 0)
{
MPIDI_CH3_Pkt_t upkt;
MPIDI_CH3_Pkt_eager_send_t * const eager_pkt = &upkt.eager_send;
MPIDI_Request_set_msg_type(sreq, MPIDI_REQUEST_EAGER_MSG);
sreq->dev.OnDataAvail = 0;
MPIU_DBG_MSG(CH3_OTHER,VERBOSE,"sending zero length message");
MPIDI_Pkt_init(eager_pkt, MPIDI_CH3_PKT_EAGER_SEND);
eager_pkt->match.parts.rank = comm->rank;
eager_pkt->match.parts.tag = tag;
eager_pkt->match.parts.context_id = comm->context_id + context_offset;
eager_pkt->sender_req_id = sreq->handle;
eager_pkt->data_sz = 0;
MPIDI_VC_FAI_send_seqnum(vc, seqnum);
MPIDI_Pkt_set_seqnum(eager_pkt, seqnum);
MPIDI_Request_set_seqnum(sreq, seqnum);
MPIU_THREAD_CS_ENTER(CH3COMM,vc);
mpi_errno = MPIDI_CH3_iSend(vc, sreq, eager_pkt, sizeof(*eager_pkt));
MPIU_THREAD_CS_EXIT(CH3COMM,vc);
/* --BEGIN ERROR HANDLING-- */
if (mpi_errno != MPI_SUCCESS)
{
MPIU_Object_set_ref(sreq, 0);
MPIDI_CH3_Request_destroy(sreq);
sreq = NULL;
MPIU_ERR_SET(mpi_errno, MPI_ERR_OTHER, "**ch3|eagermsg");
goto fn_exit;
}
/* --END ERROR HANDLING-- */
goto fn_exit;
}
MPIDI_CH3_GET_EAGER_THRESHOLD(&eager_threshold, comm, vc);
/* FIXME: flow control: limit number of outstanding eager messages
containing data and need to be buffered by the receiver */
if (data_sz + sizeof(MPIDI_CH3_Pkt_eager_send_t) <= eager_threshold)
{
if (dt_contig)
{
mpi_errno = MPIDI_CH3_EagerContigIsend( &sreq,
MPIDI_CH3_PKT_EAGER_SEND,
(char*)buf + dt_true_lb,
data_sz, rank, tag,
comm, context_offset );
}
else
{
mpi_errno = MPIDI_CH3_EagerNoncontigSend( &sreq,
MPIDI_CH3_PKT_EAGER_SEND,
buf, count, datatype,
data_sz, rank, tag,
comm, context_offset );
/* If we're not complete, then add a reference to the datatype */
if (sreq && sreq->dev.OnDataAvail) {
sreq->dev.datatype_ptr = dt_ptr;
MPID_Datatype_add_ref(dt_ptr);
}
}
}
else
{
/* Note that the sreq was created above */
MPIDI_Request_set_msg_type( sreq, MPIDI_REQUEST_RNDV_MSG );
mpi_errno = vc->rndvSend_fn( &sreq, buf, count, datatype, dt_contig,
data_sz, dt_true_lb, rank, tag, comm,
context_offset );
/* FIXME: fill temporary IOV or pack temporary buffer after send to
hide some latency. This requires synchronization
because the CTS packet could arrive and be processed before the
above iStartmsg completes (depending on the progress
engine, threads, etc.). */
if (sreq && dt_ptr != NULL)
{
sreq->dev.datatype_ptr = dt_ptr;
MPID_Datatype_add_ref(dt_ptr);
}
}
fn_exit:
*request = sreq;
MPIU_DBG_STMT(CH3_OTHER,VERBOSE,
{
if (sreq != NULL)
{
MPIU_DBG_MSG_P(CH3_OTHER,VERBOSE,"request allocated, handle=0x%08x", sreq->handle);
}
}
);
int MPID_Isend(const void * buf, int count, MPI_Datatype datatype, int rank,
int tag, MPID_Comm * comm, int context_offset,
MPID_Request ** request)
{
MPIDI_msg_sz_t data_sz;
int dt_contig;
MPI_Aint dt_true_lb;
MPID_Datatype * dt_ptr;
MPID_Request * sreq;
MPIDI_VC_t * vc=0;
#if defined(MPID_USE_SEQUENCE_NUMBERS)
MPID_Seqnum_t seqnum;
#endif
int mpi_errno = MPI_SUCCESS;
MPIDI_STATE_DECL(MPID_STATE_MPID_ISEND);
MPIDI_FUNC_ENTER(MPID_STATE_MPID_ISEND);
MPIU_DBG_MSG_FMT(CH3_OTHER,VERBOSE,(MPIU_DBG_FDEST,
"rank=%d, tag=%d, context=%d",
rank, tag, comm->context_id + context_offset));
if (rank == comm->rank && comm->comm_kind != MPID_INTERCOMM)
{
#if defined (_OSU_PSM_)
goto skip_self_send; /* psm will internally do self-send, no special
handling is needed here */
#endif /* _OSU_PSM_ */
mpi_errno = MPIDI_Isend_self(buf, count, datatype, rank, tag, comm,
context_offset, MPIDI_REQUEST_TYPE_SEND, &sreq);
goto fn_exit;
}
#if defined (_OSU_PSM_)
skip_self_send:
#endif
if (rank != MPI_PROC_NULL) {
MPIDI_Comm_get_vc_set_active(comm, rank, &vc);
#ifdef ENABLE_COMM_OVERRIDES
/* this needs to come before the sreq is created, since the override
* function is responsible for creating its own request */
if (vc->comm_ops && vc->comm_ops->isend)
{
mpi_errno = vc->comm_ops->isend( vc, buf, count, datatype, rank, tag, comm, context_offset, &sreq);
goto fn_exit;
}
#endif
}
MPIDI_Request_create_sreq(sreq, mpi_errno, goto fn_exit);
MPIDI_Request_set_type(sreq, MPIDI_REQUEST_TYPE_SEND);
if (rank == MPI_PROC_NULL)
{
MPIU_Object_set_ref(sreq, 1);
MPID_cc_set(&sreq->cc, 0);
goto fn_exit;
}
MPIDI_Datatype_get_info(count, datatype, dt_contig, data_sz, dt_ptr,
dt_true_lb);
if (data_sz == 0)
{
#if defined (_OSU_PSM_)
goto eager_send;
#endif /* _OSU_PSM_ */
MPIDI_CH3_Pkt_t upkt;
MPIDI_CH3_Pkt_eager_send_t * const eager_pkt = &upkt.eager_send;
MPIDI_Request_set_msg_type(sreq, MPIDI_REQUEST_EAGER_MSG);
sreq->dev.OnDataAvail = 0;
MPIU_DBG_MSG(CH3_OTHER,VERBOSE,"sending zero length message");
MPIDI_Pkt_init(eager_pkt, MPIDI_CH3_PKT_EAGER_SEND);
eager_pkt->match.parts.rank = comm->rank;
eager_pkt->match.parts.tag = tag;
eager_pkt->match.parts.context_id = comm->context_id + context_offset;
eager_pkt->sender_req_id = sreq->handle;
eager_pkt->data_sz = 0;
MPIDI_VC_FAI_send_seqnum(vc, seqnum);
MPIDI_Pkt_set_seqnum(eager_pkt, seqnum);
MPIDI_Request_set_seqnum(sreq, seqnum);
MPIU_THREAD_CS_ENTER(CH3COMM,vc);
mpi_errno = MPIU_CALL(MPIDI_CH3,iSend(vc, sreq, eager_pkt,
sizeof(*eager_pkt)));
MPIU_THREAD_CS_EXIT(CH3COMM,vc);
/* --BEGIN ERROR HANDLING-- */
if (mpi_errno != MPI_SUCCESS)
{
MPIU_Object_set_ref(sreq, 0);
MPIDI_CH3_Request_destroy(sreq);
sreq = NULL;
MPIU_ERR_SET(mpi_errno, MPI_ERR_OTHER, "**ch3|eagermsg");
goto fn_exit;
}
/* --END ERROR HANDLING-- */
goto fn_exit;
}
#if defined (_OSU_PSM_)
if(HANDLE_GET_KIND(datatype) != HANDLE_KIND_BUILTIN) {
sreq->dev.datatype_ptr = dt_ptr;
MPID_Datatype_add_ref(dt_ptr);
sreq->psm_flags |= PSM_NEED_DTYPE_RELEASE;
}
if(vc->force_eager)
goto eager_send;
#endif /* _OSU_PSM_ */
#if defined(_OSU_MVAPICH_)
int i;
for (i = 0 ; i < rdma_num_extra_polls; i++)
{
if (rdma_global_ext_sendq_size > 1)
MPID_Progress_test();
}
#endif
/* FIXME: flow control: limit number of outstanding eager messsages
containing data and need to be buffered by the receiver */
#if defined(_OSU_MVAPICH_)
if (data_sz + sizeof(MPIDI_CH3_Pkt_eager_send_t) <= vc->eager_max_msg_sz
&& !vc->force_rndv)
#else /* defined(_OSU_MVAPICH_) */
if (data_sz + sizeof(MPIDI_CH3_Pkt_eager_send_t) <= vc->eager_max_msg_sz)
#endif /* defined(_OSU_MVAPICH_) */
{
#if defined (_OSU_PSM_)
eager_send:
#endif /* _OSU_PSM */
if (dt_contig)
{
mpi_errno = MPIDI_CH3_EagerContigIsend( &sreq,
MPIDI_CH3_PKT_EAGER_SEND,
(char*)buf + dt_true_lb,
data_sz, rank, tag,
comm, context_offset );
}
else
{
#if defined (_OSU_PSM_)
sreq->psm_flags |= PSM_NON_BLOCKING_SEND;
#endif
mpi_errno = MPIDI_CH3_EagerNoncontigSend( &sreq,
MPIDI_CH3_PKT_EAGER_SEND,
buf, count, datatype,
data_sz, rank, tag,
comm, context_offset );
#if defined (_OSU_PSM_)
goto fn_exit;
#endif
/* If we're not complete, then add a reference to the datatype */
if (sreq && sreq->dev.OnDataAvail) {
sreq->dev.datatype_ptr = dt_ptr;
MPID_Datatype_add_ref(dt_ptr);
}
}
}
else
{
/* Note that the sreq was created above */
MPIDI_Request_set_msg_type( sreq, MPIDI_REQUEST_RNDV_MSG );
mpi_errno = vc->rndvSend_fn( &sreq, buf, count, datatype, dt_contig,
data_sz, dt_true_lb, rank, tag, comm,
context_offset );
/* FIXME: fill temporary IOV or pack temporary buffer after send to
hide some latency. This requires synchronization
because the CTS packet could arrive and be processed before the
above iStartmsg completes (depending on the progress
engine, threads, etc.). */
#if defined(_OSU_MVAPICH_)
/* rndv transfers need to process CTS packet to initiate the actual RDMA transfer */
MPID_Progress_test();
#endif /* defined(_OSU_MVAPICH_) */
if (sreq && dt_ptr != NULL)
{
sreq->dev.datatype_ptr = dt_ptr;
MPID_Datatype_add_ref(dt_ptr);
}
}
fn_exit:
*request = sreq;
#if defined(_OSU_MVAPICH_)
for (i = 0 ; i < rdma_num_extra_polls; i++)
{
if (rdma_global_ext_sendq_size > 1)
MPID_Progress_test();
}
#endif
MPIU_DBG_STMT(CH3_OTHER,VERBOSE,
{
if (sreq != NULL)
{
MPIU_DBG_MSG_P(CH3_OTHER,VERBOSE,"request allocated, handle=0x%08x", sreq->handle);
}
}
);
int MPID_Irsend(const void * buf, int count, MPI_Datatype datatype, int rank, int tag, MPID_Comm * comm, int context_offset,
MPID_Request ** request)
{
MPIDI_CH3_Pkt_t upkt;
MPIDI_CH3_Pkt_ready_send_t * const ready_pkt = &upkt.ready_send;
MPIDI_msg_sz_t data_sz;
int dt_contig;
MPI_Aint dt_true_lb;
MPID_Datatype * dt_ptr;
MPID_Request * sreq;
MPIDI_VC_t * vc;
#if defined(MPID_USE_SEQUENCE_NUMBERS)
MPID_Seqnum_t seqnum;
#endif
int mpi_errno = MPI_SUCCESS;
MPIDI_STATE_DECL(MPID_STATE_MPID_IRSEND);
MPIDI_FUNC_ENTER(MPID_STATE_MPID_IRSEND);
MPIU_DBG_MSG_FMT(CH3_OTHER,VERBOSE,(MPIU_DBG_FDEST,
"rank=%d, tag=%d, context=%d",
rank, tag, comm->context_id + context_offset));
if (rank == comm->rank && comm->comm_kind != MPID_INTERCOMM)
{
mpi_errno = MPIDI_Isend_self(buf, count, datatype, rank, tag, comm, context_offset, MPIDI_REQUEST_TYPE_RSEND, &sreq);
goto fn_exit;
}
MPIDI_Request_create_sreq(sreq, mpi_errno, goto fn_exit);
MPIDI_Request_set_type(sreq, MPIDI_REQUEST_TYPE_RSEND);
MPIDI_Request_set_msg_type(sreq, MPIDI_REQUEST_EAGER_MSG);
if (rank == MPI_PROC_NULL)
{
MPIU_Object_set_ref(sreq, 1);
MPID_cc_set(&sreq->cc, 0);
goto fn_exit;
}
MPIDI_Comm_get_vc_set_active(comm, rank, &vc);
#ifdef ENABLE_COMM_OVERRIDES
if (vc->comm_ops && vc->comm_ops->irsend)
{
mpi_errno = vc->comm_ops->irsend( vc, buf, count, datatype, rank, tag, comm, context_offset, &sreq);
goto fn_exit;
}
#endif
MPIDI_Datatype_get_info(count, datatype, dt_contig, data_sz, dt_ptr, dt_true_lb);
MPIDI_Pkt_init(ready_pkt, MPIDI_CH3_PKT_READY_SEND);
ready_pkt->match.parts.rank = comm->rank;
ready_pkt->match.parts.tag = tag;
ready_pkt->match.parts.context_id = comm->context_id + context_offset;
ready_pkt->sender_req_id = MPI_REQUEST_NULL;
ready_pkt->data_sz = data_sz;
if (data_sz == 0)
{
MPIU_DBG_MSG(CH3_OTHER,VERBOSE,"sending zero length message");
sreq->dev.OnDataAvail = 0;
MPIDI_VC_FAI_send_seqnum(vc, seqnum);
MPIDI_Pkt_set_seqnum(ready_pkt, seqnum);
MPIDI_Request_set_seqnum(sreq, seqnum);
MPIU_THREAD_CS_ENTER(CH3COMM,vc);
mpi_errno = MPIU_CALL(MPIDI_CH3,iSend(vc, sreq, ready_pkt, sizeof(*ready_pkt)));
MPIU_THREAD_CS_EXIT(CH3COMM,vc);
/* --BEGIN ERROR HANDLING-- */
if (mpi_errno != MPI_SUCCESS)
{
MPIU_Object_set_ref(sreq, 0);
MPIDI_CH3_Request_destroy(sreq);
sreq = NULL;
MPIU_ERR_SET(mpi_errno, MPI_ERR_OTHER, "**ch3|eagermsg");
goto fn_exit;
}
/* --END ERROR HANDLING-- */
goto fn_exit;
}
if (dt_contig) {
mpi_errno = MPIDI_CH3_EagerContigIsend( &sreq,
MPIDI_CH3_PKT_READY_SEND,
(char*)buf + dt_true_lb,
data_sz, rank, tag,
comm, context_offset );
}
else {
mpi_errno = MPIDI_CH3_EagerNoncontigSend( &sreq,
MPIDI_CH3_PKT_READY_SEND,
buf, count, datatype,
data_sz, rank, tag,
comm, context_offset );
/* If we're not complete, then add a reference to the datatype */
if (sreq && sreq->dev.OnDataAvail) {
sreq->dev.datatype_ptr = dt_ptr;
MPID_Datatype_add_ref(dt_ptr);
}
}
fn_exit:
*request = sreq;
MPIU_DBG_STMT(CH3_OTHER,VERBOSE,{
if (sreq != NULL)
{
MPIU_DBG_MSG_P(CH3_OTHER,VERBOSE,"request allocated, handle=0x%08x", sreq->handle);
}
}
);
