286ff6d552
NOTE: launch performance will be absolutely awful if you do this with BTLs that aren't configured to modex_recv on first message! Even with "modex on demand", we still have to do a barrier in place of the modex - we simply don't move any data around, which does reduce the time impact. The barrier is required to ensure that the other proc has in fact registered all its BTL info and therefore is prepared to hand over a complete data package. Otherwise, you may not get the info you need. In addition, the shared memory BTL can fail to properly rendezvous as it expects the barrier to be in place. This behavior will *only* take effect under the following conditions: 1. launched via mpirun 2. #procs is greater than ompi_hostname_cutoff, which defaults to UINT32_MAX 3. mca param rte_orte_direct_modex is set to 1. At the moment, we are having problems getting this param to register properly, so only the first two conditions are in effect. Still, the bottom line is you have to *want* this behavior to get it. The planned next evolution of this will be to make the direct modex be non-blocking - this will require two fixes: 1. if the remote proc doesn't have the required info, then let it delay its response until it does. This means we need a way for the MPI layer to tell the RTE "I am done entering modex data". 2. adjust the SM rendezvous logic to loop until the required file has been created Creating a placeholder to bring this over to 1.7.5 when ready. cmr=v1.7.5:reviewer=hjelmn:subject=Enable direct modex at scale This commit was SVN r30259.
439 строки
20 KiB
C
439 строки
20 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2005 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) 2004-2006 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) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006-2009 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2007-2013 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2013 NVIDIA Corporation. All rights reserved.
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* Copyright (c) 2013 Intel, Inc. 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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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_TIME_H
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#include <time.h>
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#endif /* HAVE_TIME_H */
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#include "ompi/constants.h"
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#include "ompi/datatype/ompi_datatype.h"
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#include "ompi/runtime/mpiruntime.h"
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#include "ompi/runtime/params.h"
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#include "ompi/mca/rte/rte.h"
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#include "opal/util/argv.h"
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#include "opal/util/output.h"
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#include "opal/util/show_help.h"
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/*
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* Global variables
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*
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* As a deviation from the norm, ompi_mpi_param_check is also
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* extern'ed in src/mpi/interface/c/bindings.h because it is already
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* included in all MPI function imlementation files
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*
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* The values below are the default values.
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*/
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bool ompi_mpi_param_check = true;
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bool ompi_debug_show_handle_leaks = false;
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int ompi_debug_show_mpi_alloc_mem_leaks = 0;
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bool ompi_debug_no_free_handles = false;
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bool ompi_mpi_show_mca_params = false;
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char *ompi_mpi_show_mca_params_file = NULL;
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bool ompi_mpi_abort_print_stack = false;
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int ompi_mpi_abort_delay = 0;
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bool ompi_mpi_keep_fqdn_hostnames = false;
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int ompi_mpi_leave_pinned = -1;
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bool ompi_mpi_leave_pinned_pipeline = false;
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bool ompi_have_sparse_group_storage = OPAL_INT_TO_BOOL(OMPI_GROUP_SPARSE);
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bool ompi_use_sparse_group_storage = OPAL_INT_TO_BOOL(OMPI_GROUP_SPARSE);
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bool ompi_mpi_built_with_cuda_support = OPAL_INT_TO_BOOL(OPAL_CUDA_SUPPORT);
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bool ompi_mpi_cuda_support;
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uint32_t ompi_hostname_cutoff = UINT32_MAX;
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bool ompi_mpi_yield_when_idle = true;
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int ompi_mpi_event_tick_rate = -1;
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char *ompi_mpi_show_mca_params_string = NULL;
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bool ompi_mpi_have_sparse_group_storage = !!(OMPI_GROUP_SPARSE);
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bool ompi_mpi_preconnect_mpi = false;
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static bool show_default_mca_params = false;
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static bool show_file_mca_params = false;
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static bool show_enviro_mca_params = false;
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static bool show_override_mca_params = false;
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int ompi_mpi_register_params(void)
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{
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int value;
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/* Whether we want MPI API function parameter checking or not. Disable this by default if
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parameter checking is compiled out. */
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ompi_mpi_param_check = !!(MPI_PARAM_CHECK);
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(void) mca_base_var_register("ompi", "mpi", NULL, "param_check",
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"Whether you want MPI API parameters checked at run-time or not. Possible values are 0 (no checking) and 1 (perform checking at run-time)",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_param_check);
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if (ompi_mpi_param_check && !MPI_PARAM_CHECK) {
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opal_show_help("help-mpi-runtime.txt",
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"mpi-param-check-enabled-but-compiled-out",
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true);
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ompi_mpi_param_check = false;
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}
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/*
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* opal_progress: decide whether to yield and the event library
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* tick rate
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*/
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/* JMS: Need ORTE data here -- set this to 0 when
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exactly/under-subscribed, or 1 when oversubscribed */
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ompi_mpi_yield_when_idle = true;
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(void) mca_base_var_register("ompi", "mpi", NULL, "yield_when_idle",
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"Yield the processor when waiting for MPI communication (for MPI processes, will default to 1 when oversubscribing nodes)",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_yield_when_idle);
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ompi_mpi_event_tick_rate = -1;
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(void) mca_base_var_register("ompi", "mpi", NULL, "event_tick_rate",
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"How often to progress TCP communications (0 = never, otherwise specified in microseconds)",
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MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_event_tick_rate);
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/* Whether or not to show MPI handle leaks */
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ompi_debug_show_handle_leaks = false;
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(void) mca_base_var_register("ompi", "mpi", NULL, "show_handle_leaks",
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"Whether MPI_FINALIZE shows all MPI handles that were not freed or not",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_debug_show_handle_leaks);
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/* Whether or not to free MPI handles. Useless without run-time
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param checking, so implicitly set that to true if we don't want
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to free the handles. */
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ompi_debug_no_free_handles = false;
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(void) mca_base_var_register("ompi", "mpi", NULL, "no_free_handles",
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"Whether to actually free MPI objects when their handles are freed",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_debug_no_free_handles);
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if (ompi_debug_no_free_handles) {
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ompi_mpi_param_check = true;
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if (!MPI_PARAM_CHECK) {
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opal_output(0, "WARNING: MCA parameter mpi_no_free_handles set to true, but MPI");
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opal_output(0, "WARNING: parameter checking has been compiled out of Open MPI.");
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opal_output(0, "WARNING: mpi_no_free_handles is therefore only partially effective!");
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}
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}
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/* Whether or not to show MPI_ALLOC_MEM leaks */
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ompi_debug_show_mpi_alloc_mem_leaks = 0;
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(void) mca_base_var_register("ompi", "mpi", NULL, "show_mpi_alloc_mem_leaks",
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"If >0, MPI_FINALIZE will show up to this many instances of memory allocated by MPI_ALLOC_MEM that was not freed by MPI_FREE_MEM",
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MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_debug_show_mpi_alloc_mem_leaks);
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/* Whether or not to print all MCA parameters in MPI_INIT */
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ompi_mpi_show_mca_params_string = NULL;
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(void) mca_base_var_register("ompi", "mpi", NULL, "show_mca_params",
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"Whether to show all MCA parameter values during MPI_INIT or not (good for reproducability of MPI jobs "
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"for debug purposes). Accepted values are all, default, file, api, and enviro - or a comma "
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"delimited combination of them",
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MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_show_mca_params_string);
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if (NULL != ompi_mpi_show_mca_params_string) {
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char **args;
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int i;
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ompi_mpi_show_mca_params = true;
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args = opal_argv_split(ompi_mpi_show_mca_params_string, ',');
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if (NULL == args) {
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opal_output(0, "WARNING: could not parse mpi_show_mca_params request - defaulting to show \"all\"");
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show_default_mca_params = true;
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show_file_mca_params = true;
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show_enviro_mca_params = true;
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show_override_mca_params = true;
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} else {
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for (i=0; NULL != args[i]; i++) {
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if (0 == strcasecmp(args[i], "all") || 0 == strcmp(args[i], "1")) {
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show_default_mca_params = true;
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show_file_mca_params = true;
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show_enviro_mca_params = true;
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show_override_mca_params = true;
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} else if (0 == strcasecmp(args[i], "default")) {
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show_default_mca_params = true;
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} else if (0 == strcasecmp(args[i], "file")) {
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show_file_mca_params = true;
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} else if (0 == strncasecmp(args[i], "env", 3)) {
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show_enviro_mca_params = true;
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} else if (0 == strcasecmp(args[i], "api")) {
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show_override_mca_params = true;
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}
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}
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opal_argv_free(args);
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}
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}
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/* File to use when dumping the parameters */
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ompi_mpi_show_mca_params_file = "";
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(void) mca_base_var_register("ompi", "mpi", NULL, "show_mca_params_file",
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"If mpi_show_mca_params is true, setting this string to a valid filename tells Open MPI to dump all the MCA parameter values into a file suitable for reading via the mca_param_files parameter (good for reproducability of MPI jobs)",
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MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_show_mca_params_file);
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/* User-level process pinning controls */
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/* MPI_ABORT controls */
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ompi_mpi_abort_delay = 0;
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(void) mca_base_var_register("ompi", "mpi", NULL, "abort_delay",
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"If nonzero, print out an identifying message when MPI_ABORT is invoked (hostname, PID of the process that called MPI_ABORT) and delay for that many seconds before exiting (a negative delay value means to never abort). This allows attaching of a debugger before quitting the job.",
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MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_abort_delay);
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ompi_mpi_abort_print_stack = false;
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(void) mca_base_var_register("ompi", "mpi", NULL, "abort_print_stack",
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"If nonzero, print out a stack trace when MPI_ABORT is invoked",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0,
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/* If we do not have stack trace
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capability, make this a constant
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MCA variable */
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#if OPAL_WANT_PRETTY_PRINT_STACKTRACE && defined(HAVE_BACKTRACE)
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0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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#else
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MCA_BASE_VAR_FLAG_DEFAULT_ONLY,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_CONSTANT,
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#endif
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&ompi_mpi_abort_print_stack);
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ompi_mpi_preconnect_mpi = false;
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value = mca_base_var_register("ompi", "mpi", NULL, "preconnect_mpi",
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"Whether to force MPI processes to fully "
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"wire-up the MPI connections between MPI "
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"processes during "
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"MPI_INIT (vs. making connections lazily -- "
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"upon the first MPI traffic between each "
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"process peer pair)",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0,
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MCA_BASE_VAR_FLAG_INTERNAL,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_preconnect_mpi);
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mca_base_var_register_synonym(value, "ompi", "mpi", NULL, "preconnect_all",
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MCA_BASE_VAR_SYN_FLAG_DEPRECATED);
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/* Leave pinned parameter */
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ompi_mpi_leave_pinned = -1;
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(void) mca_base_var_register("ompi", "mpi", NULL, "leave_pinned",
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"Whether to use the \"leave pinned\" protocol or not. Enabling this setting can help bandwidth performance when repeatedly sending and receiving large messages with the same buffers over RDMA-based networks (0 = do not use \"leave pinned\" protocol, 1 = use \"leave pinned\" protocol, -1 = allow network to choose at runtime).",
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MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_leave_pinned);
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ompi_mpi_leave_pinned_pipeline = false;
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(void) mca_base_var_register("ompi", "mpi", NULL, "leave_pinned_pipeline",
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"Whether to use the \"leave pinned pipeline\" protocol or not.",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_leave_pinned_pipeline);
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if (ompi_mpi_leave_pinned > 0 && ompi_mpi_leave_pinned_pipeline) {
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ompi_mpi_leave_pinned_pipeline = 0;
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opal_show_help("help-mpi-runtime.txt",
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"mpi-params:leave-pinned-and-pipeline-selected",
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true);
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}
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ompi_warn_on_fork = true;
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(void) mca_base_var_register("ompi", "mpi", NULL, "warn_on_fork",
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"If nonzero, issue a warning if program forks under conditions that could cause system errors",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_warn_on_fork);
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/* Sparse group storage support */
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(void) mca_base_var_register("ompi", "mpi", NULL, "have_sparse_group_storage",
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"Whether this Open MPI installation supports storing of data in MPI groups in \"sparse\" formats (good for extremely large process count MPI jobs that create many communicators/groups)",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0,
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MCA_BASE_VAR_FLAG_DEFAULT_ONLY,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_CONSTANT,
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&ompi_mpi_have_sparse_group_storage);
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ompi_use_sparse_group_storage = ompi_mpi_have_sparse_group_storage;
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(void) mca_base_var_register("ompi", "mpi", NULL, "use_sparse_group_storage",
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"Whether to use \"sparse\" storage formats for MPI groups (only relevant if mpi_have_sparse_group_storage is 1)",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0,
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ompi_mpi_have_sparse_group_storage ? 0 : MCA_BASE_VAR_FLAG_DEFAULT_ONLY,
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OPAL_INFO_LVL_9,
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ompi_mpi_have_sparse_group_storage ? MCA_BASE_VAR_SCOPE_READONLY : MCA_BASE_VAR_SCOPE_CONSTANT,
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&ompi_use_sparse_group_storage);
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if (ompi_use_sparse_group_storage && !ompi_mpi_have_sparse_group_storage) {
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opal_show_help("help-mpi-runtime.txt",
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"sparse groups enabled but compiled out",
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true);
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ompi_use_sparse_group_storage = false;
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}
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(void) mca_base_var_register("ompi", "mpi", NULL, "built_with_cuda_support",
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"Whether CUDA GPU buffer support is built into library or not",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0,
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MCA_BASE_VAR_FLAG_DEFAULT_ONLY,
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OPAL_INFO_LVL_4,
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MCA_BASE_VAR_SCOPE_CONSTANT,
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&ompi_mpi_built_with_cuda_support);
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/* Current default is to enable CUDA support if it is built into library */
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ompi_mpi_cuda_support = ompi_mpi_built_with_cuda_support;
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(void) mca_base_var_register("ompi", "mpi", NULL, "cuda_support",
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"Whether CUDA GPU buffer support is enabled or not",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_4,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mpi_cuda_support);
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if (ompi_mpi_cuda_support && !ompi_mpi_built_with_cuda_support) {
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opal_show_help("help-mpi-runtime.txt", "no cuda support",
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true);
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ompi_rte_abort(1, NULL);
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}
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/* cutoff for retrieving hostnames */
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ompi_hostname_cutoff = UINT32_MAX;
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(void) mca_base_var_register ("ompi", "ompi", NULL, "hostname_cutoff",
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"If the number of processes in the application exceeds the provided value,"
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"hostnames for remote processes will not be retrieved by applications [default: UINT32_MAX]",
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MCA_BASE_VAR_TYPE_UNSIGNED_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9, MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_hostname_cutoff);
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return OMPI_SUCCESS;
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}
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int ompi_show_all_mca_params(int32_t rank, int requested, char *nodename) {
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const mca_base_var_t *var;
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int var_count, i, ret;
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FILE *fp = NULL;
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time_t timestamp;
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char **var_dump;
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if (rank != 0) {
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return OMPI_SUCCESS;
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}
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timestamp = time(NULL);
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/* Open the file if one is specified */
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if (0 != strlen(ompi_mpi_show_mca_params_file)) {
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if ( NULL == (fp = fopen(ompi_mpi_show_mca_params_file, "w")) ) {
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opal_output(0, "Unable to open file <%s> to write MCA parameters", ompi_mpi_show_mca_params_file);
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return OMPI_ERR_FILE_OPEN_FAILURE;
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}
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fprintf(fp, "#\n");
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fprintf(fp, "# This file was automatically generated on %s", ctime(×tamp));
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fprintf(fp, "# by MPI_COMM_WORLD rank %d (out of a total of %d) on %s\n", rank, requested, nodename );
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fprintf(fp, "#\n");
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}
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var_count = mca_base_var_get_count ();
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for (i = 0 ; i < var_count ; ++i) {
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ret = mca_base_var_get (i, &var);
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if (OPAL_SUCCESS != ret) {
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continue;
|
|
}
|
|
|
|
/* If this is an internal param, don't print it */
|
|
if (MCA_BASE_VAR_FLAG_INTERNAL & var->mbv_flags) {
|
|
continue;
|
|
}
|
|
|
|
/* is this a default value and we are not displaying
|
|
* defaults, ignore this one
|
|
*/
|
|
if (MCA_BASE_VAR_SOURCE_DEFAULT == var->mbv_source && !show_default_mca_params) {
|
|
continue;
|
|
}
|
|
|
|
/* is this a file value and we are not displaying files,
|
|
* ignore it
|
|
*/
|
|
if ((MCA_BASE_VAR_SOURCE_FILE == var->mbv_source ||
|
|
MCA_BASE_VAR_SOURCE_OVERRIDE == var->mbv_source) &&
|
|
!show_file_mca_params) {
|
|
continue;
|
|
}
|
|
|
|
/* is this an enviro value and we are not displaying enviros,
|
|
* ignore it
|
|
*/
|
|
if (MCA_BASE_VAR_SOURCE_ENV == var->mbv_source && !show_enviro_mca_params) {
|
|
continue;
|
|
}
|
|
|
|
/* is this an API value and we are not displaying APIs,
|
|
* ignore it
|
|
*/
|
|
if (MCA_BASE_VAR_SOURCE_OVERRIDE == var->mbv_source && !show_override_mca_params) {
|
|
continue;
|
|
}
|
|
|
|
ret = mca_base_var_dump (i, &var_dump, MCA_BASE_VAR_DUMP_SIMPLE);
|
|
if (OPAL_SUCCESS != ret) {
|
|
continue;
|
|
}
|
|
|
|
/* Print the parameter */
|
|
if (0 != strlen(ompi_mpi_show_mca_params_file)) {
|
|
fprintf(fp, "%s\n", var_dump[0]);
|
|
} else {
|
|
opal_output(0, "%s\n", var_dump[0]);
|
|
}
|
|
free (var_dump[0]);
|
|
free (var_dump);
|
|
}
|
|
|
|
/* Close file, cleanup allocated memory*/
|
|
if (0 != strlen(ompi_mpi_show_mca_params_file)) {
|
|
fclose(fp);
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|