a25ce44dc1
* Don't need the 2 process case -- we'll send an extra message, but
at very little cost and less code is better.
* Use COMPLETE sends instead of STANDARD sends so that the connection
is fully established before we move on to the next connection. The
previous code was still causing minor connection flooding for huge
numbers of processes.
* mpi_preconnect_all now connects both OOB and MPI layers. There's
also mpi_preconnect_mpi and mpi_preconnect_oob should you want to
be more specific.
* Since we're only using the MCA parameters once at the beginning
of time, no need for global constants. Just do the quick param
lookup right before the parameter is needed. Save some of that
global variable space for the next guy.
Fixes trac:963
This commit was SVN r14553.
The following Trac tickets were found above:
Ticket 963 --> https://svn.open-mpi.org/trac/ompi/ticket/963
294 строки
13 KiB
C
294 строки
13 KiB
C
/*
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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) 2006-2007 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2007 Los Alamos National Security, LLC. All rights
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* 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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#if 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/runtime/mpiruntime.h"
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#include "ompi/runtime/params.h"
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#include "ompi/datatype/datatype.h"
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#include "opal/util/output.h"
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#include "opal/util/show_help.h"
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#include "opal/mca/base/mca_base_param.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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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_paffinity_alone = false;
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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_peer_hostnames = true;
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bool ompi_mpi_leave_pinned = false;
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bool ompi_mpi_leave_pinned_pipeline = 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 */
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mca_base_param_reg_int_name("mpi", "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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false, false, MPI_PARAM_CHECK, &value);
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ompi_mpi_param_check = OPAL_INT_TO_BOOL(value);
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if (ompi_mpi_param_check) {
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value = 0;
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if (MPI_PARAM_CHECK) {
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value = 1;
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}
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if (0 == value) {
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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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/*
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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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mca_base_param_reg_int_name("mpi", "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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false, false, -1, NULL);
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mca_base_param_reg_int_name("mpi", "event_tick_rate",
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"How often to progress TCP communications (0 = never, otherwise specified in microseconds)",
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false, false, -1, NULL);
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/* Whether or not to show MPI handle leaks */
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mca_base_param_reg_int_name("mpi", "show_handle_leaks",
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"Whether MPI_FINALIZE shows all MPI handles that were not freed or not",
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false, false,
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(int) ompi_debug_show_handle_leaks, &value);
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ompi_debug_show_handle_leaks = OPAL_INT_TO_BOOL(value);
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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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mca_base_param_reg_int_name("mpi", "no_free_handles",
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"Whether to actually free MPI objects when their handles are freed",
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false, false,
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(int) ompi_debug_no_free_handles, &value);
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ompi_debug_no_free_handles = OPAL_INT_TO_BOOL(value);
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if (ompi_debug_no_free_handles) {
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ompi_mpi_param_check = true;
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value = 0;
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if (MPI_PARAM_CHECK) {
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value = 1;
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}
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if (0 == value) {
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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 print all MCA parameters in MPI_INIT */
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mca_base_param_reg_int_name("mpi", "show_mca_params",
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"Whether to show all MCA parameter value during MPI_INIT or not (good for reproducability of MPI jobs)",
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false, false,
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(int) ompi_mpi_show_mca_params, &value);
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ompi_mpi_show_mca_params = OPAL_INT_TO_BOOL(value);
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/* File to use when dumping the parameters */
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mca_base_param_reg_string_name("mpi", "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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false, false,
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"", &ompi_mpi_show_mca_params_file);
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/* User-level process pinning controls */
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mca_base_param_reg_int_name("mpi", "paffinity_alone",
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"If nonzero, assume that this job is the only (set of) process(es) running on each node and bind processes to processors, starting with processor ID 0",
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false, false,
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(int) ompi_mpi_paffinity_alone, &value);
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ompi_mpi_paffinity_alone = OPAL_INT_TO_BOOL(value);
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mca_base_param_reg_int_name("mpi", "paffinity_processor",
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"If set, pin this process to the processor number indicated by the value",
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true, false,
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-1, NULL);
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/* Do we want to save hostnames for debugging messages? This can
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eat quite a bit of memory... */
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mca_base_param_reg_int_name("mpi", "keep_peer_hostnames",
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"If nonzero, save the string hostnames of all MPI peer processes (mostly for error / debugging output messages). This can add quite a bit of memory usage to each MPI process.",
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false, false, 1, &value);
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ompi_mpi_keep_peer_hostnames = OPAL_INT_TO_BOOL(value);
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/* MPI_ABORT controls */
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mca_base_param_reg_int_name("mpi", "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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false, false,
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ompi_mpi_abort_delay,
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&ompi_mpi_abort_delay);
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mca_base_param_reg_int_name("mpi", "abort_print_stack",
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"If nonzero, print out a stack trace when MPI_ABORT is invoked",
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false,
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/* If we do not have stack trace
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capability, make this a read-only
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MCA param */
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#if OMPI_WANT_PRETTY_PRINT_STACKTRACE && ! defined(__WINDOWS__) && defined(HAVE_BACKTRACE)
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false,
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#else
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true,
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#endif
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(int) ompi_mpi_abort_print_stack,
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&value);
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#if OMPI_WANT_PRETTY_PRINT_STACKTRACE && ! defined(__WINDOWS__) && defined(HAVE_BACKTRACE)
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/* Only take the value if we have stack trace capability */
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ompi_mpi_abort_print_stack = OPAL_INT_TO_BOOL(value);
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#else
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/* If we do not have stack trace capability, ensure that this is
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hard-coded to false */
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ompi_mpi_abort_print_stack = false;
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#endif
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mca_base_param_reg_int_name("mpi", "preconnect_all",
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"Whether to force MPI processes to create OOB "
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"and MPI connections with *all* peers 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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false, false, 0, NULL);
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mca_base_param_reg_int_name("mpi", "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.",
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false, false, 0, NULL);
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mca_base_param_reg_int_name("mpi", "preconnect_oob",
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"Whether to force MPI processes to fully "
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"wire-up the OOB system between MPI processes.",
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false, false, 0, NULL);
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/* Leave pinned parameter */
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mca_base_param_reg_int_name("mpi", "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.",
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false, false,
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(int) ompi_mpi_leave_pinned, &value);
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ompi_mpi_leave_pinned = OPAL_INT_TO_BOOL(value);
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mca_base_param_reg_int_name("mpi", "leave_pinned_pipeline",
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"Whether to use the \"leave pinned pipeline\" protocol or not.",
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false, false,
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(int) ompi_mpi_leave_pinned_pipeline, &value);
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ompi_mpi_leave_pinned_pipeline = OPAL_INT_TO_BOOL(value);
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if (ompi_mpi_leave_pinned && 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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/* The ddt engine has a few parameters */
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return ompi_ddt_register_params();
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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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opal_list_t *info;
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opal_list_item_t *i;
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mca_base_param_info_t *item;
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char *value_string;
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int value_int;
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FILE *fp = NULL;
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time_t timestamp;
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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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mca_base_param_dump(&info, false);
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for (i = opal_list_get_first(info);
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i != opal_list_get_last(info);
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i = opal_list_get_next(i)) {
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item = (mca_base_param_info_t*) i;
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/* Get the parameter name, and convert it to a printable string */
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if (MCA_BASE_PARAM_TYPE_STRING == item->mbpp_type) {
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mca_base_param_lookup_string(item->mbpp_index, &value_string);
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if (NULL == value_string) {
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value_string = strdup("");
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}
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} else {
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mca_base_param_lookup_int(item->mbpp_index, &value_int);
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asprintf(&value_string, "%d", value_int);
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}
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/* Print the parameter */
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if (0 != strlen(ompi_mpi_show_mca_params_file)) {
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fprintf(fp, "%s=%s\n", item->mbpp_full_name, value_string);
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} else {
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opal_output(0, "%s=%s", item->mbpp_full_name, value_string);
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}
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free(value_string);
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}
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/* Close file, cleanup allocated memory*/
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if (0 != strlen(ompi_mpi_show_mca_params_file)) {
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fclose(fp);
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}
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mca_base_param_dump_release(info);
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return OMPI_SUCCESS;
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}
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