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openmpi/ompi/runtime/ompi_mpi_params.c
Nathan Hjelm 408da16d50 ompi/proc: add proc hash table for ompi_proc_t objects 
This commit adds an opal hash table to keep track of mapping between
process identifiers and ompi_proc_t's. This hash table is used by the
ompi_proc_by_name() function to lookup (in O(1) time) a given
process. This can be used by a BTL or other component to get a
ompi_proc_t when handling an incoming message from an as yet unknown
peer.

Additionally, this commit adds a new MCA variable to control the new
add_procs behavior: mpi_add_procs_cutoff. If the number of ranks in
the process falls below the threshold a ompi_proc_t is created for
every process. If the number of ranks is above the threshold then a
ompi_proc_t is only created for the local rank. The code needed to
generate additional ompi_proc_t's for a communicator is not yet
complete.

Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
2015-09-10 08:55:54 -06:00

394 строки
18 KiB
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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2006-2009 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2007-2015 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2013 NVIDIA Corporation. All rights reserved.
* Copyright (c) 2013-2014 Intel, Inc. All rights reserved
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <string.h>
#include <time.h>
#include "ompi/constants.h"
#include "ompi/datatype/ompi_datatype.h"
#include "ompi/runtime/mpiruntime.h"
#include "ompi/runtime/params.h"
#include "ompi/mca/rte/rte.h"
#include "opal/util/argv.h"
#include "opal/util/output.h"
#include "opal/util/show_help.h"
#include "opal/runtime/opal.h"
#include "opal/runtime/opal_params.h"
/*
* Global variables
*
* As a deviation from the norm, ompi_mpi_param_check is also
* extern'ed in src/mpi/interface/c/bindings.h because it is already
* included in all MPI function imlementation files
*
* The values below are the default values.
*/
bool ompi_mpi_param_check = true;
bool ompi_debug_show_handle_leaks = false;
int ompi_debug_show_mpi_alloc_mem_leaks = 0;
bool ompi_debug_no_free_handles = false;
bool ompi_mpi_show_mca_params = false;
char *ompi_mpi_show_mca_params_file = NULL;
bool ompi_mpi_abort_print_stack = false;
int ompi_mpi_abort_delay = 0;
bool ompi_mpi_keep_fqdn_hostnames = false;
bool ompi_have_sparse_group_storage = OPAL_INT_TO_BOOL(OMPI_GROUP_SPARSE);
bool ompi_use_sparse_group_storage = OPAL_INT_TO_BOOL(OMPI_GROUP_SPARSE);
bool ompi_mpi_yield_when_idle = true;
int ompi_mpi_event_tick_rate = -1;
char *ompi_mpi_show_mca_params_string = NULL;
bool ompi_mpi_have_sparse_group_storage = !!(OMPI_GROUP_SPARSE);
bool ompi_mpi_preconnect_mpi = false;
uint32_t ompi_add_procs_cutoff = 1024;
static bool show_default_mca_params = false;
static bool show_file_mca_params = false;
static bool show_enviro_mca_params = false;
static bool show_override_mca_params = false;
int ompi_mpi_register_params(void)
{
int value;
/* Whether we want MPI API function parameter checking or not. Disable this by default if
parameter checking is compiled out. */
ompi_mpi_param_check = !!(MPI_PARAM_CHECK);
(void) mca_base_var_register("ompi", "mpi", NULL, "param_check",
"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)",
MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_mpi_param_check);
if (ompi_mpi_param_check && !MPI_PARAM_CHECK) {
opal_show_help("help-mpi-runtime.txt",
"mpi-param-check-enabled-but-compiled-out",
true);
ompi_mpi_param_check = false;
}
/*
* opal_progress: decide whether to yield and the event library
* tick rate
*/
/* JMS: Need ORTE data here -- set this to 0 when
exactly/under-subscribed, or 1 when oversubscribed */
ompi_mpi_yield_when_idle = true;
(void) mca_base_var_register("ompi", "mpi", NULL, "yield_when_idle",
"Yield the processor when waiting for MPI communication (for MPI processes, will default to 1 when oversubscribing nodes)",
MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_mpi_yield_when_idle);
ompi_mpi_event_tick_rate = -1;
(void) mca_base_var_register("ompi", "mpi", NULL, "event_tick_rate",
"How often to progress TCP communications (0 = never, otherwise specified in microseconds)",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_mpi_event_tick_rate);
/* Whether or not to show MPI handle leaks */
ompi_debug_show_handle_leaks = false;
(void) mca_base_var_register("ompi", "mpi", NULL, "show_handle_leaks",
"Whether MPI_FINALIZE shows all MPI handles that were not freed or not",
MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_debug_show_handle_leaks);
/* Whether or not to free MPI handles. Useless without run-time
param checking, so implicitly set that to true if we don't want
to free the handles. */
ompi_debug_no_free_handles = false;
(void) mca_base_var_register("ompi", "mpi", NULL, "no_free_handles",
"Whether to actually free MPI objects when their handles are freed",
MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_debug_no_free_handles);
if (ompi_debug_no_free_handles) {
ompi_mpi_param_check = true;
if (!MPI_PARAM_CHECK) {
opal_output(0, "WARNING: MCA parameter mpi_no_free_handles set to true, but MPI");
opal_output(0, "WARNING: parameter checking has been compiled out of Open MPI.");
opal_output(0, "WARNING: mpi_no_free_handles is therefore only partially effective!");
}
}
/* Whether or not to show MPI_ALLOC_MEM leaks */
ompi_debug_show_mpi_alloc_mem_leaks = 0;
(void) mca_base_var_register("ompi", "mpi", NULL, "show_mpi_alloc_mem_leaks",
"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",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_debug_show_mpi_alloc_mem_leaks);
/* Whether or not to print all MCA parameters in MPI_INIT */
ompi_mpi_show_mca_params_string = NULL;
(void) mca_base_var_register("ompi", "mpi", NULL, "show_mca_params",
"Whether to show all MCA parameter values during MPI_INIT or not (good for reproducability of MPI jobs "
"for debug purposes). Accepted values are all, default, file, api, and enviro - or a comma "
"delimited combination of them",
MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_mpi_show_mca_params_string);
if (NULL != ompi_mpi_show_mca_params_string) {
char **args;
int i;
ompi_mpi_show_mca_params = true;
args = opal_argv_split(ompi_mpi_show_mca_params_string, ',');
if (NULL == args) {
opal_output(0, "WARNING: could not parse mpi_show_mca_params request - defaulting to show \"all\"");
show_default_mca_params = true;
show_file_mca_params = true;
show_enviro_mca_params = true;
show_override_mca_params = true;
} else {
for (i=0; NULL != args[i]; i++) {
if (0 == strcasecmp(args[i], "all") || 0 == strcmp(args[i], "1")) {
show_default_mca_params = true;
show_file_mca_params = true;
show_enviro_mca_params = true;
show_override_mca_params = true;
} else if (0 == strcasecmp(args[i], "default")) {
show_default_mca_params = true;
} else if (0 == strcasecmp(args[i], "file")) {
show_file_mca_params = true;
} else if (0 == strncasecmp(args[i], "env", 3)) {
show_enviro_mca_params = true;
} else if (0 == strcasecmp(args[i], "api")) {
show_override_mca_params = true;
}
}
opal_argv_free(args);
}
}
/* File to use when dumping the parameters */
ompi_mpi_show_mca_params_file = "";
(void) mca_base_var_register("ompi", "mpi", NULL, "show_mca_params_file",
"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)",
MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_mpi_show_mca_params_file);
/* User-level process pinning controls */
/* MPI_ABORT controls */
ompi_mpi_abort_delay = 0;
(void) mca_base_var_register("ompi", "mpi", NULL, "abort_delay",
"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.",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_mpi_abort_delay);
ompi_mpi_abort_print_stack = false;
(void) mca_base_var_register("ompi", "mpi", NULL, "abort_print_stack",
"If nonzero, print out a stack trace when MPI_ABORT is invoked",
MCA_BASE_VAR_TYPE_BOOL, NULL, 0,
/* If we do not have stack trace
capability, make this a constant
MCA variable */
#if OPAL_WANT_PRETTY_PRINT_STACKTRACE
0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
#else
MCA_BASE_VAR_FLAG_DEFAULT_ONLY,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_CONSTANT,
#endif
&ompi_mpi_abort_print_stack);
ompi_mpi_preconnect_mpi = false;
value = mca_base_var_register("ompi", "mpi", NULL, "preconnect_mpi",
"Whether to force MPI processes to fully "
"wire-up the MPI connections between MPI "
"processes during "
"MPI_INIT (vs. making connections lazily -- "
"upon the first MPI traffic between each "
"process peer pair)",
MCA_BASE_VAR_TYPE_BOOL, NULL, 0,
MCA_BASE_VAR_FLAG_INTERNAL,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&ompi_mpi_preconnect_mpi);
mca_base_var_register_synonym(value, "ompi", "mpi", NULL, "preconnect_all",
MCA_BASE_VAR_SYN_FLAG_DEPRECATED);
/* Sparse group storage support */
(void) mca_base_var_register("ompi", "mpi", NULL, "have_sparse_group_storage",
"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)",
MCA_BASE_VAR_TYPE_BOOL, NULL, 0,
MCA_BASE_VAR_FLAG_DEFAULT_ONLY,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_CONSTANT,
&ompi_mpi_have_sparse_group_storage);
ompi_use_sparse_group_storage = ompi_mpi_have_sparse_group_storage;
(void) mca_base_var_register("ompi", "mpi", NULL, "use_sparse_group_storage",
"Whether to use \"sparse\" storage formats for MPI groups (only relevant if mpi_have_sparse_group_storage is 1)",
MCA_BASE_VAR_TYPE_BOOL, NULL, 0,
ompi_mpi_have_sparse_group_storage ? 0 : MCA_BASE_VAR_FLAG_DEFAULT_ONLY,
OPAL_INFO_LVL_9,
ompi_mpi_have_sparse_group_storage ? MCA_BASE_VAR_SCOPE_READONLY : MCA_BASE_VAR_SCOPE_CONSTANT,
&ompi_use_sparse_group_storage);
if (ompi_use_sparse_group_storage && !ompi_mpi_have_sparse_group_storage) {
opal_show_help("help-mpi-runtime.txt",
"sparse groups enabled but compiled out",
true);
ompi_use_sparse_group_storage = false;
}
value = mca_base_var_find ("opal", "opal", NULL, "cuda_support");
if (0 <= value) {
mca_base_var_register_synonym(value, "ompi", "mpi", NULL, "cuda_support",
MCA_BASE_VAR_SYN_FLAG_DEPRECATED);
}
value = mca_base_var_find ("opal", "opal", NULL, "built_with_cuda_support");
if (0 <= value) {
mca_base_var_register_synonym(value, "ompi", "mpi", NULL, "built_with_cuda_support", 0);
}
if (opal_cuda_support && !opal_built_with_cuda_support) {
opal_show_help("help-mpi-runtime.txt", "no cuda support",
true);
ompi_rte_abort(1, NULL);
}
ompi_add_procs_cutoff = 1024;
(void) mca_base_var_register ("ompi", "mpi", NULL, "add_procs_cutoff",
"Maximum world size for pre-allocating resources for all "
"remote processes. Increasing this limit may improve "
"communication performance at the cost of memory usage "
"(default: 1024)", MCA_BASE_VAR_TYPE_UNSIGNED_INT, NULL,
0, 0, OPAL_INFO_LVL_3, MCA_BASE_VAR_SCOPE_LOCAL,
&ompi_add_procs_cutoff);
return OMPI_SUCCESS;
}
int ompi_show_all_mca_params(int32_t rank, int requested, char *nodename) {
const mca_base_var_t *var;
int var_count, i, ret;
FILE *fp = NULL;
time_t timestamp;
char **var_dump;
if (rank != 0) {
return OMPI_SUCCESS;
}
timestamp = time(NULL);
/* Open the file if one is specified */
if (0 != strlen(ompi_mpi_show_mca_params_file)) {
if ( NULL == (fp = fopen(ompi_mpi_show_mca_params_file, "w")) ) {
opal_output(0, "Unable to open file <%s> to write MCA parameters", ompi_mpi_show_mca_params_file);
return OMPI_ERR_FILE_OPEN_FAILURE;
}
fprintf(fp, "#\n");
fprintf(fp, "# This file was automatically generated on %s", ctime(&timestamp));
fprintf(fp, "# by MPI_COMM_WORLD rank %d (out of a total of %d) on %s\n", rank, requested, nodename );
fprintf(fp, "#\n");
}
var_count = mca_base_var_get_count ();
for (i = 0 ; i < var_count ; ++i) {
ret = mca_base_var_get (i, &var);
if (OPAL_SUCCESS != ret) {
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;
}
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