325 строки
11 KiB
C
325 строки
11 KiB
C
/*
|
|
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2005 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) 2008-2009 Cisco Systems, Inc. All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
/**
|
|
* @file
|
|
*
|
|
* Most of the description of the data layout is in the
|
|
* coll_sm_module.c file.
|
|
*/
|
|
|
|
#include "ompi_config.h"
|
|
|
|
#include "ompi/constants.h"
|
|
#include "ompi/communicator/communicator.h"
|
|
#include "ompi/mca/coll/coll.h"
|
|
#include "orte/util/show_help.h"
|
|
#include "coll_sm.h"
|
|
|
|
|
|
/*
|
|
* Public string showing the coll ompi_sm component version number
|
|
*/
|
|
const char *mca_coll_sm_component_version_string =
|
|
"Open MPI sm collective MCA component version " OMPI_VERSION;
|
|
|
|
|
|
/*
|
|
* Local functions
|
|
*/
|
|
|
|
static int sm_open(void);
|
|
static int sm_close(void);
|
|
|
|
|
|
/*
|
|
* Instantiate the public struct with all of our public information
|
|
* and pointers to our public functions in it
|
|
*/
|
|
|
|
mca_coll_sm_component_t mca_coll_sm_component = {
|
|
|
|
/* First, fill in the super */
|
|
|
|
{
|
|
/* First, the mca_component_t struct containing meta
|
|
information about the component itself */
|
|
|
|
{
|
|
MCA_COLL_BASE_VERSION_2_0_0,
|
|
|
|
/* Component name and version */
|
|
"sm",
|
|
OMPI_MAJOR_VERSION,
|
|
OMPI_MINOR_VERSION,
|
|
OMPI_RELEASE_VERSION,
|
|
|
|
/* Component open and close functions */
|
|
sm_open,
|
|
sm_close,
|
|
},
|
|
{
|
|
/* The component is not checkpoint ready */
|
|
MCA_BASE_METADATA_PARAM_NONE
|
|
},
|
|
|
|
/* Initialization / querying functions */
|
|
|
|
mca_coll_sm_init_query,
|
|
mca_coll_sm_comm_query,
|
|
},
|
|
|
|
/* sm-component specifc information */
|
|
|
|
/* (default) priority */
|
|
/* JMS temporarily lowered until we can get more testing */
|
|
0,
|
|
|
|
/* (default) control size (bytes) */
|
|
4096,
|
|
|
|
/* (default) bootstrap filename */
|
|
"shared_mem_sm_bootstrap",
|
|
|
|
/* (default) number of segments in bootstrap file */
|
|
8,
|
|
|
|
/* (default) mpool name to use */
|
|
"sm",
|
|
|
|
/* (default) number of "in use" flags for each communicator's area
|
|
in the mpool */
|
|
2,
|
|
|
|
/* (default) number of segments for each communicator in the mpool
|
|
area */
|
|
8,
|
|
|
|
/* (default) fragment size */
|
|
8192,
|
|
|
|
/* (default) degree of tree for tree-based operations (must be <=
|
|
control unit size) */
|
|
4,
|
|
|
|
/* (default) number of processes in coll_sm_shared_mem_size
|
|
information variable */
|
|
4,
|
|
|
|
/* default values for non-MCA parameters */
|
|
0, /* bootstrap size -- filled in below */
|
|
0, /* mpool data size -- filled in below */
|
|
NULL, /* data mpool pointer */
|
|
false, /* whether this process created the data mpool */
|
|
NULL, /* pointer to meta data about bootstrap area */
|
|
false, /* whether the component sm has been [lazily] inited or not */
|
|
false /* whether lazy init was successful or not */
|
|
/* the lock for lazy initialization is not initialized here --
|
|
there is no static initializer for opal_atomic_lock_t */
|
|
};
|
|
|
|
|
|
/*
|
|
* Open the component
|
|
*/
|
|
static int sm_open(void)
|
|
{
|
|
size_t size1, size2;
|
|
mca_base_component_t *c = &mca_coll_sm_component.super.collm_version;
|
|
mca_coll_sm_component_t *cs = &mca_coll_sm_component;
|
|
|
|
/* If we want to be selected (i.e., all procs on one node), then
|
|
we should have a high priority */
|
|
|
|
mca_base_param_reg_int(c, "priority",
|
|
"Priority of the sm coll component",
|
|
false, false,
|
|
cs->sm_priority,
|
|
&cs->sm_priority);
|
|
|
|
mca_base_param_reg_int(c, "control_size",
|
|
"Length of the control data -- should usually be either the length of a cache line on most SMPs, or the size of a page on machines that support direct memory affinity page placement (in bytes)",
|
|
false, false,
|
|
cs->sm_control_size,
|
|
&cs->sm_control_size);
|
|
|
|
mca_base_param_reg_string(c, "bootstrap_filename",
|
|
"Filename (in the Open MPI session directory) of the coll sm component bootstrap rendezvous mmap file",
|
|
false, false,
|
|
cs->sm_bootstrap_filename,
|
|
&cs->sm_bootstrap_filename);
|
|
|
|
mca_base_param_reg_int(c, "bootstrap_num_segments",
|
|
"Number of segments in the bootstrap file",
|
|
false, false,
|
|
cs->sm_bootstrap_num_segments,
|
|
&cs->sm_bootstrap_num_segments);
|
|
|
|
mca_base_param_reg_int(c, "fragment_size",
|
|
"Fragment size (in bytes) used for passing data through shared memory (will be rounded up to the nearest control_size size)",
|
|
false, false,
|
|
cs->sm_fragment_size,
|
|
&cs->sm_fragment_size);
|
|
if (0 != (cs->sm_fragment_size % cs->sm_control_size)) {
|
|
cs->sm_fragment_size += cs->sm_control_size -
|
|
(cs->sm_fragment_size % cs->sm_control_size);
|
|
}
|
|
|
|
mca_base_param_reg_string(c, "mpool",
|
|
"Name of the mpool component to use",
|
|
false, false,
|
|
cs->sm_mpool_name,
|
|
&cs->sm_mpool_name);
|
|
|
|
mca_base_param_reg_int(c, "comm_in_use_flags",
|
|
"Number of \"in use\" flags, used to mark a message passing area segment as currently being used or not (must be >= 2 and <= comm_num_segments)",
|
|
false, false,
|
|
cs->sm_comm_num_in_use_flags,
|
|
&cs->sm_comm_num_in_use_flags);
|
|
if (cs->sm_comm_num_in_use_flags < 2) {
|
|
cs->sm_comm_num_in_use_flags = 2;
|
|
}
|
|
|
|
mca_base_param_reg_int(c, "comm_num_segments",
|
|
"Number of segments in each communicator's shared memory message passing area (must be >= 2, and must be a multiple of comm_in_use_flags)",
|
|
false, false,
|
|
cs->sm_comm_num_segments,
|
|
&cs->sm_comm_num_segments);
|
|
if (cs->sm_comm_num_segments < cs->sm_comm_num_in_use_flags) {
|
|
cs->sm_comm_num_segments = cs->sm_comm_num_in_use_flags;
|
|
}
|
|
if (0 != (cs->sm_comm_num_segments % cs->sm_comm_num_in_use_flags)) {
|
|
cs->sm_comm_num_segments += cs->sm_comm_num_in_use_flags -
|
|
(cs->sm_comm_num_segments % cs->sm_comm_num_in_use_flags);
|
|
}
|
|
cs->sm_segs_per_inuse_flag =
|
|
cs->sm_comm_num_segments / cs->sm_comm_num_in_use_flags;
|
|
|
|
mca_base_param_reg_int(c, "tree_degree",
|
|
"Degree of the tree for tree-based operations (must be => 1 and <= min(control_size, 255))",
|
|
false, false,
|
|
cs->sm_tree_degree,
|
|
&cs->sm_tree_degree);
|
|
if (cs->sm_tree_degree > cs->sm_control_size) {
|
|
orte_show_help("help-coll-sm.txt",
|
|
"tree-degree-larger-than-control", true,
|
|
cs->sm_tree_degree, cs->sm_control_size);
|
|
cs->sm_tree_degree = cs->sm_control_size;
|
|
}
|
|
if (cs->sm_tree_degree > 255) {
|
|
orte_show_help("help-coll-sm.txt",
|
|
"tree-degree-larger-than-255", true,
|
|
cs->sm_tree_degree);
|
|
cs->sm_tree_degree = 255;
|
|
}
|
|
|
|
/* Size of the bootstrap shared memory area. */
|
|
|
|
size1 =
|
|
sizeof(mca_coll_sm_bootstrap_header_extension_t) +
|
|
(mca_coll_sm_component.sm_bootstrap_num_segments *
|
|
sizeof(mca_coll_sm_bootstrap_comm_setup_t)) +
|
|
(sizeof(uint32_t) * mca_coll_sm_component.sm_bootstrap_num_segments);
|
|
mca_base_param_reg_int(c, "shared_mem_used_bootstrap",
|
|
"Amount of shared memory used in the shared memory bootstrap area (in bytes)",
|
|
false, true,
|
|
(int)size1, NULL);
|
|
|
|
/* Calculate how much space we need in the data mpool. This
|
|
formula taken directly from coll_sm_module.c. */
|
|
|
|
mca_base_param_reg_int(c, "info_num_procs",
|
|
"Number of processes to use for the calculation of the shared_mem_size MCA information parameter (must be => 2)",
|
|
false, false,
|
|
cs->sm_info_comm_size,
|
|
&cs->sm_info_comm_size);
|
|
|
|
size2 = 4 * cs->sm_control_size +
|
|
(cs->sm_comm_num_in_use_flags * cs->sm_control_size) +
|
|
(cs->sm_comm_num_segments * (cs->sm_info_comm_size * cs->sm_control_size * 2)) +
|
|
(cs->sm_comm_num_segments * (cs->sm_info_comm_size * cs->sm_fragment_size));
|
|
mca_base_param_reg_int(c, "shared_mem_used_data",
|
|
"Amount of shared memory used in the shared memory data area for info_num_procs processes (in bytes)",
|
|
false, true,
|
|
(int)size2, NULL);
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/*
|
|
* Close the component
|
|
*/
|
|
static int sm_close(void)
|
|
{
|
|
if (NULL != mca_coll_sm_component.sm_mpool_name) {
|
|
free(mca_coll_sm_component.sm_mpool_name);
|
|
mca_coll_sm_component.sm_mpool_name = NULL;
|
|
}
|
|
|
|
mca_coll_sm_bootstrap_finalize();
|
|
if (NULL != mca_coll_sm_component.sm_bootstrap_filename) {
|
|
free(mca_coll_sm_component.sm_bootstrap_filename);
|
|
mca_coll_sm_component.sm_bootstrap_filename = NULL;
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
static void
|
|
mca_coll_sm_module_construct(mca_coll_sm_module_t *module)
|
|
{
|
|
module->sm_data = NULL;
|
|
module->previous_reduce_module = NULL;
|
|
}
|
|
|
|
static void
|
|
mca_coll_sm_module_destruct(mca_coll_sm_module_t *module)
|
|
{
|
|
mca_coll_sm_comm_t *data;
|
|
|
|
/* Free the space in the data mpool and the data hanging off the
|
|
communicator */
|
|
|
|
data = module->sm_data;
|
|
if (NULL != data) {
|
|
/* If this was the process that allocated the space in the
|
|
data mpool, then this is the process that frees it */
|
|
|
|
if (NULL != data->mcb_data_mpool_malloc_addr) {
|
|
mca_coll_sm_component.sm_data_mpool->mpool_free(mca_coll_sm_component.sm_data_mpool,
|
|
data->mcb_data_mpool_malloc_addr, NULL);
|
|
}
|
|
|
|
/* Now free the data hanging off the communicator */
|
|
|
|
free(data);
|
|
}
|
|
|
|
if (NULL != module->previous_reduce_module) {
|
|
OBJ_RELEASE(module->previous_reduce_module);
|
|
}
|
|
}
|
|
|
|
|
|
OBJ_CLASS_INSTANCE(mca_coll_sm_module_t,
|
|
mca_coll_base_module_t,
|
|
mca_coll_sm_module_construct,
|
|
mca_coll_sm_module_destruct);
|