6c5532072a
OMPI and a language agnostic part in OPAL. The convertor is completely moved into OPAL. This offers several benefits as described in RFC http://www.open-mpi.org/community/lists/devel/2009/07/6387.php namely: - Fewer basic types (int* and float* types, boolean and wchar - Fixing naming scheme to ompi-nomenclature. - Usability outside of the ompi-layer. - Due to the fixed nature of simple opal types, their information is completely known at compile time and therefore constified - With fewer datatypes (22), the actual sizes of bit-field types may be reduced from 64 to 32 bits, allowing reorganizing the opal_datatype structure, eliminating holes and keeping data required in convertor (upon send/recv) in one cacheline... This has implications to the convertor-datastructure and other parts of the code. - Several performance tests have been run, the netpipe latency does not change with this patch on Linux/x86-64 on the smoky cluster. - Extensive tests have been done to verify correctness (no new regressions) using: 1. mpi_test_suite on linux/x86-64 using clean ompi-trunk and ompi-ddt: a. running both trunk and ompi-ddt resulted in no differences (except for MPI_SHORT_INT and MPI_TYPE_MIX_LB_UB do now run correctly). b. with --enable-memchecker and running under valgrind (one buglet when run with static found in test-suite, commited) 2. ibm testsuite on linux/x86-64 using clean ompi-trunk and ompi-ddt: all passed (except for the dynamic/ tests failed!! as trunk/MTT) 3. compilation and usage of HDF5 tests on Jaguar using PGI and PathScale compilers. 4. compilation and usage on Scicortex. - Please note, that for the heterogeneous case, (-m32 compiled binaries/ompi), neither ompi-trunk, nor ompi-ddt branch would successfully launch. This commit was SVN r21641.
198 строки
7.0 KiB
C
198 строки
7.0 KiB
C
/*
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* Copyright (c) 2004-2006 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 "opal/prefetch.h"
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#include "ompi/datatype/ompi_datatype.h"
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#include "ompi/communicator/communicator.h"
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#include "pml_cm.h"
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#include "pml_cm_sendreq.h"
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int
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mca_pml_cm_isend_init(void* buf,
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size_t count,
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ompi_datatype_t* datatype,
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int dst,
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int tag,
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mca_pml_base_send_mode_t sendmode,
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ompi_communicator_t* comm,
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ompi_request_t** request)
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{
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int ret;
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mca_pml_cm_hvy_send_request_t *sendreq;
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ompi_proc_t* ompi_proc;
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MCA_PML_CM_HVY_SEND_REQUEST_ALLOC(sendreq, comm, dst, ompi_proc, ret);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) return ret;
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MCA_PML_CM_HVY_SEND_REQUEST_INIT(sendreq, ompi_proc, comm, tag, dst,
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datatype, sendmode, true, false, buf, count);
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*request = (ompi_request_t*) sendreq;
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return OMPI_SUCCESS;
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}
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int
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mca_pml_cm_isend(void* buf,
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size_t count,
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ompi_datatype_t* datatype,
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int dst,
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int tag,
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mca_pml_base_send_mode_t sendmode,
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ompi_communicator_t* comm,
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ompi_request_t** request)
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{
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int ret;
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if(sendmode == MCA_PML_BASE_SEND_BUFFERED ) {
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mca_pml_cm_hvy_send_request_t* sendreq;
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ompi_proc_t* ompi_proc;
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MCA_PML_CM_HVY_SEND_REQUEST_ALLOC(sendreq, comm, dst, ompi_proc, ret);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) return ret;
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MCA_PML_CM_HVY_SEND_REQUEST_INIT(sendreq,
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ompi_proc,
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comm,
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tag,
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dst,
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datatype,
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sendmode,
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false,
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false,
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buf,
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count);
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MCA_PML_CM_HVY_SEND_REQUEST_START( sendreq, ret);
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if (OPAL_LIKELY(OMPI_SUCCESS == ret)) *request = (ompi_request_t*) sendreq;
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} else {
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mca_pml_cm_thin_send_request_t* sendreq;
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ompi_proc_t* ompi_proc;
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MCA_PML_CM_THIN_SEND_REQUEST_ALLOC(sendreq, comm, dst, ompi_proc, ret);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) return ret;
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MCA_PML_CM_THIN_SEND_REQUEST_INIT(sendreq,
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ompi_proc,
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comm,
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tag,
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dst,
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datatype,
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sendmode,
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buf,
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count);
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MCA_PML_CM_THIN_SEND_REQUEST_START(
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sendreq,
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comm,
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tag,
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dst,
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sendmode,
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false,
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ret);
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if (OPAL_LIKELY(OMPI_SUCCESS == ret)) *request = (ompi_request_t*) sendreq;
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}
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return ret;
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}
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int
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mca_pml_cm_send(void *buf,
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size_t count,
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ompi_datatype_t* datatype,
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int dst,
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int tag,
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mca_pml_base_send_mode_t sendmode,
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ompi_communicator_t* comm)
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{
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int ret = OMPI_ERROR;
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if(sendmode == MCA_PML_BASE_SEND_BUFFERED) {
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mca_pml_cm_hvy_send_request_t *sendreq;
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ompi_proc_t * ompi_proc;
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MCA_PML_CM_HVY_SEND_REQUEST_ALLOC(sendreq, comm, dst, ompi_proc, ret);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) return ret;
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MCA_PML_CM_HVY_SEND_REQUEST_INIT(sendreq,
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ompi_proc,
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comm,
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tag,
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dst,
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datatype,
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sendmode,
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false,
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false,
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buf,
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count);
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MCA_PML_CM_HVY_SEND_REQUEST_START(sendreq, ret);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) {
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MCA_PML_CM_HVY_SEND_REQUEST_RETURN(sendreq);
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return ret;
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}
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ompi_request_free( (ompi_request_t**)&sendreq );
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} else {
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mca_pml_cm_thin_send_request_t *sendreq;
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ompi_proc_t * ompi_proc;
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MCA_PML_CM_THIN_SEND_REQUEST_ALLOC(sendreq, comm, dst, ompi_proc, ret);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) return ret;
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MCA_PML_CM_THIN_SEND_REQUEST_INIT(sendreq,
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ompi_proc,
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comm,
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tag,
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dst,
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datatype,
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sendmode,
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buf,
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count);
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if (NULL == ompi_mtl->mtl_send) {
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MCA_PML_CM_THIN_SEND_REQUEST_START(sendreq,
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comm,
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tag,
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dst,
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sendmode,
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false,
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ret);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) {
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MCA_PML_CM_THIN_SEND_REQUEST_RETURN(sendreq);
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return ret;
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}
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ompi_request_wait_completion(&sendreq->req_send.req_base.req_ompi);
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ompi_request_free( (ompi_request_t**)&sendreq );
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} else {
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MCA_PML_CM_SEND_REQUEST_START_SETUP((&sendreq->req_send));
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ret = OMPI_MTL_CALL(send(ompi_mtl,
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comm,
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dst,
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tag,
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&sendreq->req_send.req_base.req_convertor,
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sendmode));
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/* Allow a quick path for the request return */
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sendreq->req_send.req_base.req_free_called = true;
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MCA_PML_CM_THIN_SEND_REQUEST_PML_COMPLETE(sendreq);
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}
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}
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return ret;
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}
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