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.
192 строки
7.2 KiB
C
192 строки
7.2 KiB
C
/*
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* Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* 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) 2004-2006 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/communicator/communicator.h"
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#include "opal/datatype/opal_convertor.h"
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#include "mtl_mx.h"
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#include "mtl_mx_types.h"
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#include "mtl_mx_request.h"
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#include "ompi/mca/mtl/base/mtl_base_datatype.h"
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int
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ompi_mtl_mx_send(struct mca_mtl_base_module_t* mtl,
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struct ompi_communicator_t* comm,
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int dest,
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int tag,
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struct opal_convertor_t *convertor,
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mca_pml_base_send_mode_t mode)
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{
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mx_return_t mx_return;
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uint64_t match_bits;
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mca_mtl_mx_request_t mtl_mx_request;
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size_t length;
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mx_status_t mx_status;
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uint32_t result;
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ompi_proc_t* ompi_proc = ompi_comm_peer_lookup( comm, dest );
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mca_mtl_mx_endpoint_t* mx_endpoint = (mca_mtl_mx_endpoint_t*) ompi_proc->proc_pml;
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char* where;
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assert(mtl == &ompi_mtl_mx.super);
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MX_SET_SEND_BITS(match_bits, comm->c_contextid, comm->c_my_rank, tag);
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ompi_mtl_datatype_pack(convertor,
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&mtl_mx_request.mx_segment[0].segment_ptr,
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&length,
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&mtl_mx_request.free_after);
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mtl_mx_request.mx_segment[0].segment_length = length;
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mtl_mx_request.convertor = convertor;
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mtl_mx_request.type = OMPI_MTL_MX_ISEND;
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OPAL_OUTPUT_VERBOSE((50, ompi_mtl_base_output,
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"issend bits: 0x%016" PRIu64 "\n",
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match_bits));
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if(mode == MCA_PML_BASE_SEND_SYNCHRONOUS) {
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mx_return = mx_issend( ompi_mtl_mx.mx_endpoint,
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mtl_mx_request.mx_segment,
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1,
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mx_endpoint->mx_peer_addr,
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match_bits,
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&mtl_mx_request,
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&mtl_mx_request.mx_request
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);
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where = "mx_issend";
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} else {
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mx_return = mx_isend( ompi_mtl_mx.mx_endpoint,
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mtl_mx_request.mx_segment,
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1,
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mx_endpoint->mx_peer_addr,
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match_bits,
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&mtl_mx_request,
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&mtl_mx_request.mx_request
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);
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where = "mx_isend";
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}
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if( OPAL_UNLIKELY(mx_return != MX_SUCCESS) ) {
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char peer_name[MX_MAX_HOSTNAME_LEN];
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if(MX_SUCCESS != mx_nic_id_to_hostname( mx_endpoint->mx_peer->nic_id, peer_name)) {
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sprintf( peer_name, "unknown %lx nic_id", (long)mx_endpoint->mx_peer->nic_id );
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}
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opal_output(ompi_mtl_base_output, "Error in %s (error %s) sending to %s\n",
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where, mx_strerror(mx_return), peer_name);
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/* Free buffer if needed */
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if(mtl_mx_request.free_after) {
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free(mtl_mx_request.mx_segment[0].segment_ptr);
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}
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return OMPI_ERROR;
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}
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do {
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mx_return = mx_test(ompi_mtl_mx.mx_endpoint,
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&mtl_mx_request.mx_request,
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&mx_status,
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&result);
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if( OPAL_UNLIKELY(mx_return != MX_SUCCESS) ) {
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opal_output(ompi_mtl_base_output, "Error in mx_wait (error %s)\n", mx_strerror(mx_return));
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abort();
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}
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if( OPAL_UNLIKELY(result && mx_status.code != MX_STATUS_SUCCESS) ) {
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opal_output(ompi_mtl_base_output,
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"Error in ompi_mtl_mx_send, mx_wait returned something other than MX_STATUS_SUCCESS: mx_status.code = %d.\n",
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mx_status.code);
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abort();
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}
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} while(!result);
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/* Free buffer if needed */
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if(mtl_mx_request.free_after) {
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free(mtl_mx_request.mx_segment[0].segment_ptr);
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}
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return OMPI_SUCCESS;
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}
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int
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ompi_mtl_mx_isend(struct mca_mtl_base_module_t* mtl,
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struct ompi_communicator_t* comm,
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int dest,
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int tag,
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struct opal_convertor_t *convertor,
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mca_pml_base_send_mode_t mode,
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bool blocking,
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mca_mtl_request_t * mtl_request)
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{
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mx_return_t mx_return;
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uint64_t match_bits;
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mca_mtl_mx_request_t * mtl_mx_request = (mca_mtl_mx_request_t*) mtl_request;
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size_t length;
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ompi_proc_t* ompi_proc = ompi_comm_peer_lookup( comm, dest );
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mca_mtl_mx_endpoint_t* mx_endpoint = (mca_mtl_mx_endpoint_t*) ompi_proc->proc_pml;
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char* where;
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assert(mtl == &ompi_mtl_mx.super);
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MX_SET_SEND_BITS(match_bits, comm->c_contextid, comm->c_my_rank, tag);
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ompi_mtl_datatype_pack(convertor,
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&mtl_mx_request->mx_segment[0].segment_ptr,
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&length,
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&mtl_mx_request->free_after);
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mtl_mx_request->mx_segment[0].segment_length = length;
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mtl_mx_request->convertor = convertor;
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mtl_mx_request->type = OMPI_MTL_MX_ISEND;
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OPAL_OUTPUT_VERBOSE((50, ompi_mtl_base_output,
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"issend bits: 0x%016" PRIu64 "\n", match_bits));
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if(mode == MCA_PML_BASE_SEND_SYNCHRONOUS) {
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mx_return = mx_issend( ompi_mtl_mx.mx_endpoint,
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mtl_mx_request->mx_segment,
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1,
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mx_endpoint->mx_peer_addr,
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match_bits,
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mtl_mx_request,
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&mtl_mx_request->mx_request
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);
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where = "mx_issend";
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} else {
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mx_return = mx_isend( ompi_mtl_mx.mx_endpoint,
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mtl_mx_request->mx_segment,
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1,
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mx_endpoint->mx_peer_addr,
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match_bits,
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mtl_mx_request,
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&mtl_mx_request->mx_request
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);
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where = "mx_isend";
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}
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if( OPAL_UNLIKELY(mx_return != MX_SUCCESS) ) {
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char peer_name[MX_MAX_HOSTNAME_LEN];
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if(MX_SUCCESS != mx_nic_id_to_hostname( mx_endpoint->mx_peer->nic_id, peer_name)) {
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sprintf( peer_name, "unknown %lx nic_id", (long)mx_endpoint->mx_peer->nic_id );
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}
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opal_output(ompi_mtl_base_output, "Error in %s (error %s) sending to %s\n",
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where, mx_strerror(mx_return), peer_name);
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return OMPI_ERROR;
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}
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return OMPI_SUCCESS;
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}
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