2fb7c344fc
Configure Option: --enable-sysv MCA Parameter: mpi_common_sm mpi_common_sm accepts a comma delimited list of: [sysv],mmap (order dependent). The first component that is successfully selected is used. For example, -mca mpi_common_sm sysv,mmap will first try sysv. If sysv is not successfully selected, then mmap will be used. mmap will be used if mpi_common_sm is not provided. Notes: Please make certain that your system's shmmax limit, or equivalent, is larger than mpool_sm_min_size. Otherwise, shmget may fail. This commit was SVN r23260.
243 строки
8.2 KiB
C
243 строки
8.2 KiB
C
/*
|
|
* Copyright (c) 2004-2010 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) 2007-2009 Sun Microsystems, Inc. All rights reserved.
|
|
* Copyright (c) 2008-2009 Cisco Systems, Inc. All rights reserved.
|
|
* Copyright (c) 2010 Los Alamos National Security, LLC.
|
|
* All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "ompi_config.h"
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif /* HAVE_UNISTD_H*/
|
|
#ifdef HAVE_STDLIB_H
|
|
#include <stdlib.h>
|
|
#endif /* HAVE_STDLIB_H */
|
|
#include <errno.h>
|
|
#include "opal/mca/base/base.h"
|
|
#include "opal/mca/base/mca_base_param.h"
|
|
|
|
#include "orte/util/proc_info.h"
|
|
|
|
#include "ompi/mca/allocator/base/base.h"
|
|
#include "mpool_sm.h"
|
|
#include "ompi/mca/common/sm/common_sm.h"
|
|
#include "ompi/proc/proc.h"
|
|
|
|
#if OPAL_ENABLE_FT_CR == 1
|
|
#include "opal/runtime/opal_cr.h"
|
|
#endif
|
|
|
|
/*
|
|
* Local functions
|
|
*/
|
|
static int mca_mpool_sm_open(void);
|
|
static int mca_mpool_sm_close( void );
|
|
static mca_mpool_base_module_t* mca_mpool_sm_init(
|
|
struct mca_mpool_base_resources_t* resources);
|
|
|
|
mca_mpool_sm_component_t mca_mpool_sm_component = {
|
|
{
|
|
/* First, the mca_base_component_t struct containing meta
|
|
information about the component itself */
|
|
|
|
{
|
|
MCA_MPOOL_BASE_VERSION_2_0_0,
|
|
|
|
"sm", /* MCA component name */
|
|
OMPI_MAJOR_VERSION, /* MCA component major version */
|
|
OMPI_MINOR_VERSION, /* MCA component minor version */
|
|
OMPI_RELEASE_VERSION, /* MCA component release version */
|
|
mca_mpool_sm_open, /* component open */
|
|
mca_mpool_sm_close
|
|
},
|
|
{
|
|
/* The component is checkpoint ready */
|
|
MCA_BASE_METADATA_PARAM_CHECKPOINT
|
|
},
|
|
|
|
mca_mpool_sm_init
|
|
}
|
|
};
|
|
|
|
static char *min_size_param = NULL;
|
|
static long default_min;
|
|
|
|
/**
|
|
* component open/close/init function
|
|
*/
|
|
static int mca_mpool_sm_open(void)
|
|
{
|
|
int value = 0;
|
|
char *size_str = NULL;
|
|
|
|
default_min = 67108864;
|
|
|
|
/* register SM component parameters */
|
|
mca_base_param_reg_string(&mca_mpool_sm_component.super.mpool_version,
|
|
"allocator",
|
|
"Name of allocator component to use with sm mpool",
|
|
false, false,
|
|
"bucket",
|
|
&mca_mpool_sm_component.sm_allocator_name);
|
|
|
|
/* register values as string instead of int. A string-converted
|
|
* signed long int allows the min_size or the sm_size
|
|
* to be set up to 2GB-1 for 32 bit and much greater for 64 bit. */
|
|
asprintf(&size_str, "%ld", default_min);
|
|
mca_base_param_reg_string(&mca_mpool_sm_component.super.mpool_version,
|
|
"min_size",
|
|
"Minimum size of the sm mpool shared memory file",
|
|
false, false, size_str, &min_size_param);
|
|
free(size_str);
|
|
mca_base_param_reg_int(&mca_mpool_sm_component.super.mpool_version,
|
|
"verbose",
|
|
"Enable verbose output for mpool sm component",
|
|
false, false, 0, &value);
|
|
if (value != 0) {
|
|
mca_mpool_sm_component.verbose = opal_output_open(NULL);
|
|
} else {
|
|
mca_mpool_sm_component.verbose = -1;
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
static int mca_mpool_sm_close( void )
|
|
{
|
|
if (NULL != mca_mpool_sm_component.sm_allocator_name) {
|
|
free(mca_mpool_sm_component.sm_allocator_name);
|
|
}
|
|
if (NULL != min_size_param) {
|
|
free(min_size_param);
|
|
}
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
static mca_mpool_base_module_t* mca_mpool_sm_init(
|
|
struct mca_mpool_base_resources_t* resources)
|
|
{
|
|
char *file_name;
|
|
int len;
|
|
mca_mpool_sm_module_t* mpool_module;
|
|
mca_allocator_base_component_t* allocator_component;
|
|
long min_size;
|
|
ompi_proc_t **procs;
|
|
size_t num_all_procs, i, num_local_procs = 0;
|
|
|
|
/* README: this needs to change if procs in different jobs (even
|
|
spawned ones) are to talk using shared memory */
|
|
procs = ompi_proc_world(&num_all_procs);
|
|
for (i = 0 ; i < num_all_procs ; ++i) {
|
|
if (OPAL_PROC_ON_LOCAL_NODE(procs[i]->proc_flags)) {
|
|
num_local_procs++;
|
|
}
|
|
}
|
|
|
|
/* parse the min size and validate it */
|
|
/* if other parameters are added, absolutely necessary to reset errno each time */
|
|
errno = 0;
|
|
min_size = strtol(min_size_param, (char **)NULL, 10);
|
|
if (errno == ERANGE) {
|
|
opal_output(0, "mca_mpool_sm_init: min_size overflows! set to default (%ld)", default_min);
|
|
min_size = default_min;
|
|
} else if (errno == EINVAL) {
|
|
opal_output(0, "mca_mpool_sm_init: invalid min_size entered. set it to (%ld)", default_min);
|
|
min_size = default_min;
|
|
}
|
|
|
|
/* Make a new mpool module */
|
|
mpool_module =
|
|
(mca_mpool_sm_module_t*)malloc(sizeof(mca_mpool_sm_module_t));
|
|
mca_mpool_sm_module_init(mpool_module);
|
|
|
|
/* set sm_size */
|
|
mpool_module->sm_size = resources->size;
|
|
|
|
/* clip at the min size */
|
|
if (mpool_module->sm_size < min_size) {
|
|
mpool_module->sm_size = min_size;
|
|
}
|
|
|
|
/* add something for the control structure */
|
|
mpool_module->sm_size += sizeof(mca_common_sm_module_t);
|
|
|
|
allocator_component = mca_allocator_component_lookup(
|
|
mca_mpool_sm_component.sm_allocator_name);
|
|
|
|
/* if specified allocator cannot be loaded - look for an alternative */
|
|
if(NULL == allocator_component) {
|
|
if(opal_list_get_size(&mca_allocator_base_components) == 0) {
|
|
mca_base_component_list_item_t* item = (mca_base_component_list_item_t*)
|
|
opal_list_get_first(&mca_allocator_base_components);
|
|
allocator_component = (mca_allocator_base_component_t*)item->cli_component;
|
|
opal_output(0, "mca_mpool_sm_init: unable to locate allocator: %s - using %s\n",
|
|
mca_mpool_sm_component.sm_allocator_name, allocator_component->allocator_version.mca_component_name);
|
|
} else {
|
|
opal_output(0, "mca_mpool_sm_init: unable to locate allocator: %s\n",
|
|
mca_mpool_sm_component.sm_allocator_name);
|
|
free(procs);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
mpool_module->mem_node = resources->mem_node;
|
|
|
|
/* create initial shared memory mapping */
|
|
len = asprintf( &file_name, "%s"OPAL_PATH_SEP"shared_mem_pool.%s",
|
|
orte_process_info.job_session_dir,
|
|
orte_process_info.nodename );
|
|
if ( 0 > len ) {
|
|
free(mpool_module);
|
|
free(procs);
|
|
return NULL;
|
|
}
|
|
|
|
opal_output(mca_mpool_sm_component.verbose,
|
|
"mca_mpool_sm_init: shared memory size used: (%ld)",
|
|
mpool_module->sm_size);
|
|
|
|
if (NULL == (mpool_module->sm_common_module =
|
|
mca_common_sm_init(procs, num_all_procs,
|
|
mpool_module->sm_size,
|
|
file_name,
|
|
sizeof(mca_common_sm_module_t), 8))) {
|
|
opal_output(mca_mpool_sm_component.verbose,
|
|
"mca_mpool_sm_init: unable to create shared memory mapping (%s)", file_name);
|
|
free(file_name);
|
|
free(mpool_module);
|
|
free(procs);
|
|
return NULL;
|
|
}
|
|
free(procs);
|
|
free(file_name);
|
|
|
|
/* setup allocator */
|
|
mpool_module->sm_allocator =
|
|
allocator_component->allocator_init(true,
|
|
mca_common_sm_seg_alloc,
|
|
NULL, &(mpool_module->super));
|
|
if(NULL == mpool_module->sm_allocator) {
|
|
opal_output(0, "mca_mpool_sm_init: unable to initialize allocator");
|
|
free(mpool_module);
|
|
return NULL;
|
|
}
|
|
|
|
return &mpool_module->super;
|
|
}
|
|
|