2b4b754925
* Combine polling of the long requests and buffer requests into
one type, and in one place
* Associate the list of requests to poll with the component, not
the individual modules
* add progress thread that sits on the OMPI request structure
and wakes up at the appropriate time to poll the message
list. Not the best, but without some asynch notification
from the PML that a given set of requests has completed, there
isn't much better
* Instead of calling opal_progress() all over the place, move
to using the condition variables like the rest of the project.
Has the advantage of moving it slightly futher along in the
becoming thread safe thing
* Fix a problem with the passive side of unlock where it could
go recursive and cause all kinds of problems, especially
when progress threads are used. Instead, have two parts of
passive unlock -- one to start the unlock, and another to
complete the lock and send the ack back. The data moving
code trips the second at the right time.
This commit was SVN r14703.
877 строки
31 KiB
C
877 строки
31 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2006 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "osc_pt2pt.h"
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#include "osc_pt2pt_sendreq.h"
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#include "osc_pt2pt_header.h"
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#include "osc_pt2pt_data_move.h"
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#include "osc_pt2pt_obj_convert.h"
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#include "osc_pt2pt_buffer.h"
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#include "opal/util/output.h"
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#include "opal/sys/atomic.h"
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#include "ompi/mca/pml/pml.h"
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#include "ompi/datatype/datatype.h"
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#include "ompi/datatype/dt_arch.h"
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#include "ompi/mca/osc/base/base.h"
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static inline int32_t
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create_send_tag(ompi_osc_pt2pt_module_t *module)
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{
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#if OMPI_HAVE_THREAD_SUPPORT && OPAL_HAVE_ATOMIC_CMPSET_32
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int32_t newval, oldval;
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do {
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oldval = module->p2p_tag_counter;
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newval = (oldval + 1) % mca_pml.pml_max_tag;
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} while (0 == opal_atomic_cmpset_32(&module->p2p_tag_counter, oldval, newval));
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return newval;
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#else
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int32_t ret;
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/* no compare and swap - have to lock the module */
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OPAL_THREAD_LOCK(&module->p2p_lock);
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module->p2p_tag_counter = (module->p2p_tag_counter + 1) % mca_pml.pml_max_tag;
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ret = module->p2p_tag_counter;
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OPAL_THREAD_UNLOCK(&module->p2p_lock);
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return ret;
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#endif
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}
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static inline void
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inmsg_mark_complete(ompi_osc_pt2pt_module_t *module)
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{
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int32_t count = OPAL_THREAD_ADD32(&(module->p2p_num_pending_in), -1);
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if (0 == count) {
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opal_condition_broadcast(&module->p2p_cond);
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if ((0 != module->p2p_lock_status) &&
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(opal_list_get_size(&module->p2p_unlocks_pending) != 0)) {
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ompi_osc_pt2pt_passive_unlock_complete(module);
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}
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}
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}
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/**********************************************************************
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*
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* Sending a sendreq to target
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*
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**********************************************************************/
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static void
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ompi_osc_pt2pt_sendreq_send_long_cb(ompi_osc_pt2pt_mpireq_t *mpireq)
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{
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ompi_osc_pt2pt_longreq_t *longreq =
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(ompi_osc_pt2pt_longreq_t*) mpireq;
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ompi_osc_pt2pt_sendreq_t *sendreq =
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(ompi_osc_pt2pt_sendreq_t*) longreq->mpireq.cbdata;
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int32_t count;
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OPAL_OUTPUT_VERBOSE((50, ompi_osc_base_output,
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"%d completed long sendreq to %d",
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sendreq->req_module->p2p_comm->c_my_rank,
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sendreq->req_target_rank));
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count = OPAL_THREAD_ADD32(&(sendreq->req_module->p2p_num_pending_out), -1);
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ompi_osc_pt2pt_longreq_free(longreq);
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ompi_osc_pt2pt_sendreq_free(sendreq);
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if (0 == count) opal_condition_broadcast(&sendreq->req_module->p2p_cond);
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}
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static void
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ompi_osc_pt2pt_sendreq_send_cb(ompi_osc_pt2pt_mpireq_t *mpireq)
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{
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ompi_osc_pt2pt_buffer_t *buffer =
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(ompi_osc_pt2pt_buffer_t*) mpireq;
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ompi_osc_pt2pt_sendreq_t *sendreq =
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(ompi_osc_pt2pt_sendreq_t*) mpireq->cbdata;
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ompi_osc_pt2pt_send_header_t *header =
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(ompi_osc_pt2pt_send_header_t*) buffer->payload;
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int32_t count;
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/* have to look at header, and not the sendreq because in the case
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of get, it's possible that the sendreq has been freed already
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(if the remote side replies before we get our send completion
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callback) and already allocated to another request. We don't
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wait for this completion before exiting a synchronization point
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in the case of get, as we really don't care when it completes -
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only when the data arrives. */
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if (OMPI_OSC_PT2PT_HDR_GET != header->hdr_base.hdr_type) {
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (header->hdr_base.hdr_flags & OMPI_OSC_PT2PT_HDR_FLAG_NBO) {
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OMPI_OSC_PT2PT_SEND_HDR_NTOH(*header);
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}
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#endif
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/* do we need to post a send? */
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if (header->hdr_msg_length != 0) {
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/* sendreq is done. Mark it as so and get out of here */
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count = OPAL_THREAD_ADD32(&(sendreq->req_module->p2p_num_pending_out), -1);
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ompi_osc_pt2pt_sendreq_free(sendreq);
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if (0 == count) opal_condition_broadcast(&sendreq->req_module->p2p_cond);
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}
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}
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/* release the buffer */
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OPAL_FREE_LIST_RETURN(&mca_osc_pt2pt_component.p2p_c_buffers,
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&mpireq->super);
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}
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/* create the initial fragment, pack header, datatype, and payload (if
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size fits) and send */
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int
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ompi_osc_pt2pt_sendreq_send(ompi_osc_pt2pt_module_t *module,
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ompi_osc_pt2pt_sendreq_t *sendreq)
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{
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int ret = OMPI_SUCCESS;
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opal_free_list_item_t *item;
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ompi_osc_pt2pt_send_header_t *header = NULL;
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ompi_osc_pt2pt_buffer_t *buffer = NULL;
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size_t written_data = 0;
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size_t needed_len = sizeof(ompi_osc_pt2pt_send_header_t);
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const void *packed_ddt;
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size_t packed_ddt_len = ompi_ddt_pack_description_length(sendreq->req_target_datatype);
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/* we always need to send the ddt */
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needed_len += packed_ddt_len;
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if (OMPI_OSC_PT2PT_GET != sendreq->req_type) {
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needed_len += sendreq->req_origin_bytes_packed;
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}
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/* Get a buffer */
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OPAL_FREE_LIST_GET(&mca_osc_pt2pt_component.p2p_c_buffers,
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item, ret);
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if (NULL == item) {
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ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
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goto cleanup;
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}
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buffer = (ompi_osc_pt2pt_buffer_t*) item;
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/* verify at least enough space for header */
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if (mca_osc_pt2pt_component.p2p_c_eager_size < sizeof(ompi_osc_pt2pt_send_header_t)) {
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ret = OMPI_ERR_OUT_OF_RESOURCE;
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goto cleanup;
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}
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/* setup buffer */
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buffer->mpireq.cbfunc = ompi_osc_pt2pt_sendreq_send_cb;
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buffer->mpireq.cbdata = (void*) sendreq;
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/* pack header */
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header = (ompi_osc_pt2pt_send_header_t*) buffer->payload;
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written_data += sizeof(ompi_osc_pt2pt_send_header_t);
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header->hdr_base.hdr_flags = 0;
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header->hdr_origin = sendreq->req_module->p2p_comm->c_my_rank;
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header->hdr_origin_sendreq.pval = (void*) sendreq;
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header->hdr_origin_tag = 0;
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header->hdr_target_disp = sendreq->req_target_disp;
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header->hdr_target_count = sendreq->req_target_count;
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switch (sendreq->req_type) {
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case OMPI_OSC_PT2PT_PUT:
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header->hdr_base.hdr_type = OMPI_OSC_PT2PT_HDR_PUT;
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#if OMPI_ENABLE_MEM_DEBUG
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header->hdr_target_op = 0;
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#endif
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break;
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case OMPI_OSC_PT2PT_ACC:
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header->hdr_base.hdr_type = OMPI_OSC_PT2PT_HDR_ACC;
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header->hdr_target_op = sendreq->req_op_id;
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break;
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case OMPI_OSC_PT2PT_GET:
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header->hdr_base.hdr_type = OMPI_OSC_PT2PT_HDR_GET;
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#if OMPI_ENABLE_MEM_DEBUG
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header->hdr_target_op = 0;
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#endif
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break;
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}
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/* Set datatype id and / or pack datatype */
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ret = ompi_ddt_get_pack_description(sendreq->req_target_datatype, &packed_ddt);
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if (OMPI_SUCCESS != ret) goto cleanup;
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memcpy((unsigned char*) buffer->payload + written_data,
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packed_ddt, packed_ddt_len);
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written_data += packed_ddt_len;
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if (OMPI_OSC_PT2PT_GET != sendreq->req_type) {
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/* if sending data and it fits, pack payload */
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if (mca_osc_pt2pt_component.p2p_c_eager_size >=
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written_data + sendreq->req_origin_bytes_packed) {
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struct iovec iov;
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uint32_t iov_count = 1;
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size_t max_data = sendreq->req_origin_bytes_packed;
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iov.iov_len = max_data;
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iov.iov_base = (IOVBASE_TYPE*)((unsigned char*) buffer->payload + written_data);
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ret = ompi_convertor_pack(&sendreq->req_origin_convertor, &iov, &iov_count,
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&max_data );
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if (ret < 0) {
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ret = OMPI_ERR_FATAL;
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goto cleanup;
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}
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assert(max_data == sendreq->req_origin_bytes_packed);
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written_data += max_data;
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header->hdr_msg_length = sendreq->req_origin_bytes_packed;
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} else {
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header->hdr_msg_length = 0;
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header->hdr_origin_tag = create_send_tag(module);
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}
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} else {
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header->hdr_msg_length = 0;
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}
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buffer->len = written_data;
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#ifdef WORDS_BIGENDIAN
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header->hdr_base.hdr_flags |= OMPI_OSC_PT2PT_HDR_FLAG_NBO;
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#elif OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (sendreq->req_target_proc->proc_arch & OMPI_ARCH_ISBIGENDIAN) {
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header->hdr_base.hdr_flags |= OMPI_OSC_PT2PT_HDR_FLAG_NBO;
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OMPI_OSC_PT2PT_SEND_HDR_HTON(*header);
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}
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#endif
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/* send fragment */
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OPAL_OUTPUT_VERBOSE((51, ompi_osc_base_output,
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"%d sending sendreq to %d",
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sendreq->req_module->p2p_comm->c_my_rank,
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sendreq->req_target_rank));
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ret = MCA_PML_CALL(isend(buffer->payload,
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buffer->len,
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MPI_BYTE,
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sendreq->req_target_rank,
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CONTROL_MSG_TAG,
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MCA_PML_BASE_SEND_STANDARD,
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module->p2p_comm,
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&buffer->mpireq.request));
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OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
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opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
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&buffer->mpireq.super.super);
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OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
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if (OMPI_OSC_PT2PT_GET != sendreq->req_type &&
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header->hdr_msg_length == 0) {
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ompi_osc_pt2pt_longreq_t *longreq;
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ompi_osc_pt2pt_longreq_alloc(&longreq);
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longreq->mpireq.cbfunc = ompi_osc_pt2pt_sendreq_send_long_cb;
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longreq->mpireq.cbdata = sendreq;
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OPAL_OUTPUT_VERBOSE((50, ompi_osc_base_output,
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"%d starting long sendreq to %d (%d)",
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sendreq->req_module->p2p_comm->c_my_rank,
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sendreq->req_target_rank,
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header->hdr_origin_tag));
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mca_pml.pml_isend(sendreq->req_origin_convertor.pBaseBuf,
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sendreq->req_origin_convertor.count,
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sendreq->req_origin_datatype,
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sendreq->req_target_rank,
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header->hdr_origin_tag,
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MCA_PML_BASE_SEND_STANDARD,
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sendreq->req_module->p2p_comm,
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&(longreq->mpireq.request));
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/* put the send request in the waiting list */
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OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
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opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
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&(longreq->mpireq.super.super));
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OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
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}
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goto done;
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cleanup:
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if (item != NULL) {
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OPAL_FREE_LIST_RETURN(&mca_osc_pt2pt_component.p2p_c_buffers,
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item);
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}
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done:
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return ret;
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}
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/**********************************************************************
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*
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* Sending a replyreq back to origin
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*
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**********************************************************************/
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static void
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ompi_osc_pt2pt_replyreq_send_long_cb(ompi_osc_pt2pt_mpireq_t *mpireq)
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{
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ompi_osc_pt2pt_longreq_t *longreq =
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(ompi_osc_pt2pt_longreq_t*) mpireq;
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ompi_osc_pt2pt_replyreq_t *replyreq =
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(ompi_osc_pt2pt_replyreq_t*) mpireq->cbdata;
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inmsg_mark_complete(replyreq->rep_module);
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ompi_osc_pt2pt_longreq_free(longreq);
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ompi_osc_pt2pt_replyreq_free(replyreq);
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}
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static void
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ompi_osc_pt2pt_replyreq_send_cb(ompi_osc_pt2pt_mpireq_t *mpireq)
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{
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ompi_osc_pt2pt_buffer_t *buffer =
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(ompi_osc_pt2pt_buffer_t*) mpireq;
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ompi_osc_pt2pt_replyreq_t *replyreq =
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(ompi_osc_pt2pt_replyreq_t*) mpireq->cbdata;
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ompi_osc_pt2pt_reply_header_t *header =
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(ompi_osc_pt2pt_reply_header_t*) buffer->payload;
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (header->hdr_base.hdr_flags & OMPI_OSC_PT2PT_HDR_FLAG_NBO) {
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OMPI_OSC_PT2PT_REPLY_HDR_NTOH(*header);
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}
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#endif
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/* do we need to post a send? */
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if (header->hdr_msg_length != 0) {
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/* sendreq is done. Mark it as so and get out of here */
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inmsg_mark_complete(replyreq->rep_module);
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ompi_osc_pt2pt_replyreq_free(replyreq);
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}
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/* release the descriptor and replyreq */
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OPAL_FREE_LIST_RETURN(&mca_osc_pt2pt_component.p2p_c_buffers,
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&mpireq->super);
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}
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int
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ompi_osc_pt2pt_replyreq_send(ompi_osc_pt2pt_module_t *module,
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ompi_osc_pt2pt_replyreq_t *replyreq)
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{
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int ret = OMPI_SUCCESS;
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opal_free_list_item_t *item;
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ompi_osc_pt2pt_buffer_t *buffer = NULL;
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ompi_osc_pt2pt_reply_header_t *header = NULL;
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size_t written_data = 0;
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/* Get a buffer */
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OPAL_FREE_LIST_GET(&mca_osc_pt2pt_component.p2p_c_buffers,
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item, ret);
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if (NULL == item) {
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ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
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goto cleanup;
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}
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buffer = (ompi_osc_pt2pt_buffer_t*) item;
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|
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/* verify at least enough space for header */
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if (mca_osc_pt2pt_component.p2p_c_eager_size < sizeof(ompi_osc_pt2pt_reply_header_t)) {
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ret = OMPI_ERR_OUT_OF_RESOURCE;
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goto cleanup;
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}
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/* setup buffer */
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buffer->mpireq.cbfunc = ompi_osc_pt2pt_replyreq_send_cb;
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buffer->mpireq.cbdata = (void*) replyreq;
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/* pack header */
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header = (ompi_osc_pt2pt_reply_header_t*) buffer->payload;
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written_data += sizeof(ompi_osc_pt2pt_reply_header_t);
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header->hdr_base.hdr_type = OMPI_OSC_PT2PT_HDR_REPLY;
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header->hdr_base.hdr_flags = 0;
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header->hdr_origin_sendreq = replyreq->rep_origin_sendreq;
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header->hdr_target_tag = 0;
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/* if sending data fits, pack payload */
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if (mca_osc_pt2pt_component.p2p_c_eager_size >=
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written_data + replyreq->rep_target_bytes_packed) {
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struct iovec iov;
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uint32_t iov_count = 1;
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size_t max_data = replyreq->rep_target_bytes_packed;
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iov.iov_len = max_data;
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iov.iov_base = (IOVBASE_TYPE*)((unsigned char*) buffer->payload + written_data);
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ret = ompi_convertor_pack(&replyreq->rep_target_convertor, &iov, &iov_count,
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&max_data );
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if (ret < 0) {
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ret = OMPI_ERR_FATAL;
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goto cleanup;
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}
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assert(max_data == replyreq->rep_target_bytes_packed);
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written_data += max_data;
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header->hdr_msg_length = replyreq->rep_target_bytes_packed;
|
|
} else {
|
|
header->hdr_msg_length = 0;
|
|
header->hdr_target_tag = create_send_tag(module);
|
|
}
|
|
|
|
buffer->len = written_data;
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
header->hdr_base.hdr_flags |= OMPI_OSC_PT2PT_HDR_FLAG_NBO;
|
|
#elif OMPI_ENABLE_HETEROGENEOUS_SUPPORT
|
|
if (replyreq->rep_origin_proc->proc_arch & OMPI_ARCH_ISBIGENDIAN) {
|
|
header->hdr_base.hdr_flags |= OMPI_OSC_PT2PT_HDR_FLAG_NBO;
|
|
OMPI_OSC_PT2PT_REPLY_HDR_HTON(*header);
|
|
}
|
|
#endif
|
|
|
|
/* send fragment */
|
|
ret = MCA_PML_CALL(isend(buffer->payload,
|
|
buffer->len,
|
|
MPI_BYTE,
|
|
replyreq->rep_origin_rank,
|
|
CONTROL_MSG_TAG,
|
|
MCA_PML_BASE_SEND_STANDARD,
|
|
module->p2p_comm,
|
|
&buffer->mpireq.request));
|
|
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
|
|
&buffer->mpireq.super.super);
|
|
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
|
|
if (header->hdr_msg_length == 0) {
|
|
ompi_osc_pt2pt_longreq_t *longreq;
|
|
ompi_osc_pt2pt_longreq_alloc(&longreq);
|
|
|
|
longreq->mpireq.cbfunc = ompi_osc_pt2pt_replyreq_send_long_cb;
|
|
longreq->mpireq.cbdata = replyreq;
|
|
|
|
mca_pml.pml_isend(replyreq->rep_target_convertor.pBaseBuf,
|
|
replyreq->rep_target_convertor.count,
|
|
replyreq->rep_target_datatype,
|
|
replyreq->rep_origin_rank,
|
|
header->hdr_target_tag,
|
|
MCA_PML_BASE_SEND_STANDARD,
|
|
module->p2p_comm,
|
|
&(longreq->mpireq.request));
|
|
|
|
/* put the send request in the waiting list */
|
|
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
|
|
&longreq->mpireq.super.super);
|
|
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
}
|
|
goto done;
|
|
|
|
cleanup:
|
|
if (item != NULL) {
|
|
OPAL_FREE_LIST_RETURN(&mca_osc_pt2pt_component.p2p_c_buffers,
|
|
item);
|
|
}
|
|
|
|
done:
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
*
|
|
* Receive a put on the target side
|
|
*
|
|
**********************************************************************/
|
|
static void
|
|
ompi_osc_pt2pt_sendreq_recv_put_long_cb(ompi_osc_pt2pt_mpireq_t *mpireq)
|
|
{
|
|
ompi_osc_pt2pt_longreq_t *longreq =
|
|
(ompi_osc_pt2pt_longreq_t*) mpireq;
|
|
|
|
OBJ_RELEASE(longreq->req_datatype);
|
|
ompi_osc_pt2pt_longreq_free(longreq);
|
|
|
|
inmsg_mark_complete(longreq->req_module);
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_pt2pt_sendreq_recv_put(ompi_osc_pt2pt_module_t *module,
|
|
ompi_osc_pt2pt_send_header_t *header,
|
|
void *inbuf)
|
|
{
|
|
int ret = OMPI_SUCCESS;
|
|
void *target = (unsigned char*) module->p2p_win->w_baseptr +
|
|
(header->hdr_target_disp * module->p2p_win->w_disp_unit);
|
|
ompi_proc_t *proc = ompi_comm_peer_lookup( module->p2p_comm, header->hdr_origin );
|
|
struct ompi_datatype_t *datatype =
|
|
ompi_osc_pt2pt_datatype_create(proc, &inbuf);
|
|
|
|
if (header->hdr_msg_length > 0) {
|
|
ompi_convertor_t convertor;
|
|
struct iovec iov;
|
|
uint32_t iov_count = 1;
|
|
size_t max_data;
|
|
ompi_proc_t *proc;
|
|
|
|
/* create convertor */
|
|
OBJ_CONSTRUCT(&convertor, ompi_convertor_t);
|
|
|
|
/* initialize convertor */
|
|
proc = ompi_comm_peer_lookup(module->p2p_comm, header->hdr_origin);
|
|
ompi_convertor_copy_and_prepare_for_recv(proc->proc_convertor,
|
|
datatype,
|
|
header->hdr_target_count,
|
|
target,
|
|
0,
|
|
&convertor);
|
|
iov.iov_len = header->hdr_msg_length;
|
|
iov.iov_base = (IOVBASE_TYPE*)inbuf;
|
|
max_data = iov.iov_len;
|
|
ompi_convertor_unpack(&convertor,
|
|
&iov,
|
|
&iov_count,
|
|
&max_data );
|
|
OBJ_DESTRUCT(&convertor);
|
|
OBJ_RELEASE(datatype);
|
|
inmsg_mark_complete(module);
|
|
} else {
|
|
ompi_osc_pt2pt_longreq_t *longreq;
|
|
ompi_osc_pt2pt_longreq_alloc(&longreq);
|
|
|
|
longreq->mpireq.cbfunc = ompi_osc_pt2pt_sendreq_recv_put_long_cb;
|
|
longreq->mpireq.cbdata = NULL;
|
|
longreq->req_datatype = datatype;
|
|
longreq->req_module = module;
|
|
|
|
ret = mca_pml.pml_irecv(target,
|
|
header->hdr_target_count,
|
|
datatype,
|
|
header->hdr_origin,
|
|
header->hdr_origin_tag,
|
|
module->p2p_comm,
|
|
&(longreq->mpireq.request));
|
|
|
|
/* put the send request in the waiting list */
|
|
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
|
|
&(longreq->mpireq.super.super));
|
|
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
*
|
|
* Receive an accumulate on the target side
|
|
*
|
|
**********************************************************************/
|
|
static void
|
|
ompi_osc_pt2pt_sendreq_recv_accum_long_cb(ompi_osc_pt2pt_mpireq_t *mpireq)
|
|
{
|
|
ompi_osc_pt2pt_longreq_t *longreq =
|
|
(ompi_osc_pt2pt_longreq_t*) mpireq;
|
|
ompi_osc_pt2pt_send_header_t *header =
|
|
(ompi_osc_pt2pt_send_header_t*) mpireq->cbdata;
|
|
void *payload = (void*) (header + 1);
|
|
int ret;
|
|
|
|
/* lock the window for accumulates */
|
|
OPAL_THREAD_LOCK(&longreq->req_module->p2p_acc_lock);
|
|
|
|
/* copy the data from the temporary buffer into the user window */
|
|
ret = ompi_osc_pt2pt_process_op(longreq->req_module,
|
|
header,
|
|
longreq->req_datatype,
|
|
longreq->req_op,
|
|
payload,
|
|
header->hdr_msg_length);
|
|
|
|
/* unlock the window for accumulates */
|
|
OPAL_THREAD_UNLOCK(&longreq->req_module->p2p_acc_lock);
|
|
|
|
OPAL_OUTPUT_VERBOSE((50, ompi_osc_base_output,
|
|
"%d finished receiving long accum message from %d",
|
|
longreq->req_module->p2p_comm->c_my_rank,
|
|
header->hdr_origin));
|
|
|
|
/* free the temp buffer */
|
|
free(mpireq->cbdata);
|
|
|
|
/* Release datatype & op */
|
|
OBJ_RELEASE(longreq->req_datatype);
|
|
OBJ_RELEASE(longreq->req_op);
|
|
|
|
inmsg_mark_complete(longreq->req_module);
|
|
|
|
ompi_osc_pt2pt_longreq_free(longreq);
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_pt2pt_sendreq_recv_accum(ompi_osc_pt2pt_module_t *module,
|
|
ompi_osc_pt2pt_send_header_t *header,
|
|
void *payload)
|
|
{
|
|
int ret = OMPI_SUCCESS;
|
|
struct ompi_op_t *op = ompi_osc_pt2pt_op_create(header->hdr_target_op);
|
|
ompi_proc_t *proc = ompi_comm_peer_lookup( module->p2p_comm, header->hdr_origin );
|
|
struct ompi_datatype_t *datatype =
|
|
ompi_osc_pt2pt_datatype_create(proc, &payload);
|
|
|
|
if (header->hdr_msg_length > 0) {
|
|
/* lock the window for accumulates */
|
|
OPAL_THREAD_LOCK(&module->p2p_acc_lock);
|
|
|
|
/* copy the data from the temporary buffer into the user window */
|
|
ret = ompi_osc_pt2pt_process_op(module, header, datatype, op, payload,
|
|
header->hdr_msg_length);
|
|
|
|
/* unlock the window for accumulates */
|
|
OPAL_THREAD_UNLOCK(&module->p2p_acc_lock);
|
|
|
|
/* Release datatype & op */
|
|
OBJ_RELEASE(datatype);
|
|
OBJ_RELEASE(op);
|
|
|
|
inmsg_mark_complete(module);
|
|
|
|
OPAL_OUTPUT_VERBOSE((50, ompi_osc_base_output,
|
|
"%d received accum message from %d",
|
|
module->p2p_comm->c_my_rank,
|
|
header->hdr_origin));
|
|
} else {
|
|
ompi_osc_pt2pt_longreq_t *longreq;
|
|
ptrdiff_t lb, extent, true_lb, true_extent;
|
|
size_t buflen;
|
|
|
|
/* figure out how big a buffer we need */
|
|
ompi_ddt_get_extent(datatype, &lb, &extent);
|
|
ompi_ddt_get_true_extent(datatype, &true_lb, &true_extent);
|
|
buflen = true_extent + (header->hdr_target_count - 1) * extent;
|
|
|
|
/* get a longreq and fill it in */
|
|
ompi_osc_pt2pt_longreq_alloc(&longreq);
|
|
|
|
longreq->mpireq.cbfunc = ompi_osc_pt2pt_sendreq_recv_accum_long_cb;
|
|
longreq->req_datatype = datatype;
|
|
longreq->req_op = op;
|
|
longreq->req_module = module;
|
|
|
|
/* allocate a buffer to receive into ... */
|
|
longreq->mpireq.cbdata = malloc(buflen + sizeof(ompi_osc_pt2pt_send_header_t));
|
|
|
|
if (NULL == longreq->mpireq.cbdata) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
/* fill in tmp header */
|
|
memcpy(longreq->mpireq.cbdata, header,
|
|
sizeof(ompi_osc_pt2pt_send_header_t));
|
|
((ompi_osc_pt2pt_send_header_t*) longreq->mpireq.cbdata)->hdr_msg_length = buflen;
|
|
|
|
ret = mca_pml.pml_irecv(((char*) longreq->mpireq.cbdata) + sizeof(ompi_osc_pt2pt_send_header_t),
|
|
header->hdr_target_count,
|
|
datatype,
|
|
header->hdr_origin,
|
|
header->hdr_origin_tag,
|
|
module->p2p_comm,
|
|
&(longreq->mpireq.request));
|
|
|
|
OPAL_OUTPUT_VERBOSE((50, ompi_osc_base_output,
|
|
"%d started long recv accum message from %d (%d)",
|
|
module->p2p_comm->c_my_rank,
|
|
header->hdr_origin,
|
|
header->hdr_origin_tag));
|
|
|
|
/* put the send request in the waiting list */
|
|
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
|
|
&(longreq->mpireq.super.super));
|
|
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
*
|
|
* Recveive a get on the origin side
|
|
*
|
|
**********************************************************************/
|
|
static void
|
|
ompi_osc_pt2pt_replyreq_recv_long_cb(ompi_osc_pt2pt_mpireq_t *mpireq)
|
|
{
|
|
ompi_osc_pt2pt_longreq_t *longreq =
|
|
(ompi_osc_pt2pt_longreq_t*) mpireq;
|
|
ompi_osc_pt2pt_sendreq_t *sendreq =
|
|
(ompi_osc_pt2pt_sendreq_t*) longreq->mpireq.cbdata;
|
|
int32_t count;
|
|
|
|
ompi_osc_pt2pt_longreq_free(longreq);
|
|
|
|
count = OPAL_THREAD_ADD32(&(sendreq->req_module->p2p_num_pending_out), -1);
|
|
ompi_osc_pt2pt_sendreq_free(sendreq);
|
|
if (0 == count) opal_condition_broadcast(&sendreq->req_module->p2p_cond);
|
|
}
|
|
|
|
int
|
|
ompi_osc_pt2pt_replyreq_recv(ompi_osc_pt2pt_module_t *module,
|
|
ompi_osc_pt2pt_sendreq_t *sendreq,
|
|
ompi_osc_pt2pt_reply_header_t *header,
|
|
void *payload)
|
|
{
|
|
int ret = OMPI_SUCCESS;
|
|
int32_t count;
|
|
|
|
/* receive into user buffer */
|
|
if (header->hdr_msg_length > 0) {
|
|
/* short message. woo! */
|
|
|
|
struct iovec iov;
|
|
uint32_t iov_count = 1;
|
|
size_t max_data;
|
|
|
|
iov.iov_len = header->hdr_msg_length;
|
|
iov.iov_base = (IOVBASE_TYPE*)payload;
|
|
max_data = iov.iov_len;
|
|
ompi_convertor_unpack(&sendreq->req_origin_convertor,
|
|
&iov,
|
|
&iov_count,
|
|
&max_data );
|
|
|
|
count = OPAL_THREAD_ADD32(&(sendreq->req_module->p2p_num_pending_out), -1);
|
|
ompi_osc_pt2pt_sendreq_free(sendreq);
|
|
if (0 == count) opal_condition_broadcast(&module->p2p_cond);
|
|
|
|
} else {
|
|
ompi_osc_pt2pt_longreq_t *longreq;
|
|
ompi_osc_pt2pt_longreq_alloc(&longreq);
|
|
|
|
longreq->mpireq.cbfunc = ompi_osc_pt2pt_replyreq_recv_long_cb;
|
|
longreq->mpireq.cbdata = sendreq;
|
|
longreq->req_module = module;
|
|
|
|
/* BWB - FIX ME - George is going to kill me for this */
|
|
ret = mca_pml.pml_irecv(sendreq->req_origin_convertor.pBaseBuf,
|
|
sendreq->req_origin_convertor.count,
|
|
sendreq->req_origin_datatype,
|
|
sendreq->req_target_rank,
|
|
header->hdr_target_tag,
|
|
module->p2p_comm,
|
|
&(longreq->mpireq.request));
|
|
|
|
/* put the send request in the waiting list */
|
|
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
|
|
&(longreq->mpireq.super.super));
|
|
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
*
|
|
* Control message communication
|
|
*
|
|
**********************************************************************/
|
|
static void
|
|
ompi_osc_pt2pt_control_send_cb(ompi_osc_pt2pt_mpireq_t *mpireq)
|
|
{
|
|
/* release the descriptor and sendreq */
|
|
OPAL_FREE_LIST_RETURN(&mca_osc_pt2pt_component.p2p_c_buffers,
|
|
&mpireq->super);
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_pt2pt_control_send(ompi_osc_pt2pt_module_t *module,
|
|
ompi_proc_t *proc,
|
|
uint8_t type, int32_t value0, int32_t value1)
|
|
{
|
|
int ret = OMPI_SUCCESS;
|
|
opal_free_list_item_t *item;
|
|
ompi_osc_pt2pt_buffer_t *buffer = NULL;
|
|
ompi_osc_pt2pt_control_header_t *header = NULL;
|
|
int rank = -1, i;
|
|
|
|
/* find the rank */
|
|
for (i = 0 ; i < module->p2p_comm->c_remote_group->grp_proc_count ; ++i) {
|
|
if (proc == module->p2p_comm->c_remote_group->grp_proc_pointers[i]) {
|
|
rank = i;
|
|
}
|
|
}
|
|
|
|
/* Get a buffer */
|
|
OPAL_FREE_LIST_GET(&mca_osc_pt2pt_component.p2p_c_buffers,
|
|
item, ret);
|
|
if (NULL == item) {
|
|
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
goto cleanup;
|
|
}
|
|
buffer = (ompi_osc_pt2pt_buffer_t*) item;
|
|
|
|
/* verify at least enough space for header */
|
|
if (mca_osc_pt2pt_component.p2p_c_eager_size < sizeof(ompi_osc_pt2pt_control_header_t)) {
|
|
ret = OMPI_ERR_OUT_OF_RESOURCE;
|
|
goto cleanup;
|
|
}
|
|
|
|
/* setup buffer */
|
|
buffer->mpireq.cbfunc = ompi_osc_pt2pt_control_send_cb;
|
|
buffer->mpireq.cbdata = NULL;
|
|
buffer->len = sizeof(ompi_osc_pt2pt_control_header_t);
|
|
|
|
/* pack header */
|
|
header = (ompi_osc_pt2pt_control_header_t*) buffer->payload;
|
|
header->hdr_base.hdr_type = type;
|
|
header->hdr_base.hdr_flags = 0;
|
|
header->hdr_value[0] = value0;
|
|
header->hdr_value[1] = value1;
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
header->hdr_base.hdr_flags |= OMPI_OSC_PT2PT_HDR_FLAG_NBO;
|
|
#elif OMPI_ENABLE_HETEROGENEOUS_SUPPORT
|
|
if (proc->proc_arch & OMPI_ARCH_ISBIGENDIAN) {
|
|
header->hdr_base.hdr_flags |= OMPI_OSC_PT2PT_HDR_FLAG_NBO;
|
|
OMPI_OSC_PT2PT_CONTROL_HDR_HTON(*header);
|
|
}
|
|
#endif
|
|
|
|
/* send fragment */
|
|
ret = MCA_PML_CALL(isend(buffer->payload,
|
|
buffer->len,
|
|
MPI_BYTE,
|
|
rank,
|
|
CONTROL_MSG_TAG,
|
|
MCA_PML_BASE_SEND_STANDARD,
|
|
module->p2p_comm,
|
|
&buffer->mpireq.request));
|
|
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
|
|
&(buffer->mpireq.super.super));
|
|
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
|
|
|
|
goto done;
|
|
|
|
cleanup:
|
|
if (item != NULL) {
|
|
OPAL_FREE_LIST_RETURN(&mca_osc_pt2pt_component.p2p_c_buffers,
|
|
item);
|
|
}
|
|
|
|
done:
|
|
return ret;
|
|
}
|