eb95d6f892
Initialize the blocking_fence flag to false as the code logic indicates that it should only be set if someone provides that flag. Thanks to Lisandro Dalcin for reporting it cmr=v1.8.4:reviewer=hjelmn This commit was SVN r32812.
506 строки
15 KiB
C
506 строки
15 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
|
|
/*
|
|
* Copyright (c) 2012 Sandia National Laboratories. All rights reserved.
|
|
* Copyright (c) 2014 Los Alamos National Security, LLC. All rights
|
|
* reserved.
|
|
* Copyright (c) 2014 Intel, Inc. All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "ompi_config.h"
|
|
|
|
#include "ompi/mca/osc/osc.h"
|
|
#include "ompi/mca/osc/base/base.h"
|
|
#include "ompi/mca/osc/base/osc_base_obj_convert.h"
|
|
#include "ompi/request/request.h"
|
|
#include "opal/class/ompi_free_list.h"
|
|
#include "opal/util/sys_limits.h"
|
|
|
|
#include "osc_sm.h"
|
|
|
|
static int component_open(void);
|
|
static int component_init(bool enable_progress_threads, bool enable_mpi_threads);
|
|
static int component_finalize(void);
|
|
static int component_query(struct ompi_win_t *win, void **base, size_t size, int disp_unit,
|
|
struct ompi_communicator_t *comm, struct ompi_info_t *info,
|
|
int flavor);
|
|
static int component_select(struct ompi_win_t *win, void **base, size_t size, int disp_unit,
|
|
struct ompi_communicator_t *comm, struct ompi_info_t *info,
|
|
int flavor, int *model);
|
|
|
|
|
|
ompi_osc_sm_component_t mca_osc_sm_component = {
|
|
{ /* ompi_osc_base_component_t */
|
|
{ /* ompi_base_component_t */
|
|
OMPI_OSC_BASE_VERSION_3_0_0,
|
|
"sm",
|
|
OMPI_MAJOR_VERSION, /* MCA component major version */
|
|
OMPI_MINOR_VERSION, /* MCA component minor version */
|
|
OMPI_RELEASE_VERSION, /* MCA component release version */
|
|
component_open,
|
|
NULL
|
|
},
|
|
{ /* mca_base_component_data */
|
|
/* The component is not checkpoint ready */
|
|
MCA_BASE_METADATA_PARAM_NONE
|
|
},
|
|
component_init,
|
|
component_query,
|
|
component_select,
|
|
component_finalize
|
|
}
|
|
};
|
|
|
|
|
|
ompi_osc_sm_module_t ompi_osc_sm_module_template = {
|
|
{
|
|
ompi_osc_sm_shared_query,
|
|
|
|
ompi_osc_sm_attach,
|
|
ompi_osc_sm_detach,
|
|
ompi_osc_sm_free,
|
|
|
|
ompi_osc_sm_put,
|
|
ompi_osc_sm_get,
|
|
ompi_osc_sm_accumulate,
|
|
ompi_osc_sm_compare_and_swap,
|
|
ompi_osc_sm_fetch_and_op,
|
|
ompi_osc_sm_get_accumulate,
|
|
|
|
ompi_osc_sm_rput,
|
|
ompi_osc_sm_rget,
|
|
ompi_osc_sm_raccumulate,
|
|
ompi_osc_sm_rget_accumulate,
|
|
|
|
ompi_osc_sm_fence,
|
|
|
|
ompi_osc_sm_start,
|
|
ompi_osc_sm_complete,
|
|
ompi_osc_sm_post,
|
|
ompi_osc_sm_wait,
|
|
ompi_osc_sm_test,
|
|
|
|
ompi_osc_sm_lock,
|
|
ompi_osc_sm_unlock,
|
|
ompi_osc_sm_lock_all,
|
|
ompi_osc_sm_unlock_all,
|
|
|
|
ompi_osc_sm_sync,
|
|
ompi_osc_sm_flush,
|
|
ompi_osc_sm_flush_all,
|
|
ompi_osc_sm_flush_local,
|
|
ompi_osc_sm_flush_local_all,
|
|
|
|
ompi_osc_sm_set_info,
|
|
ompi_osc_sm_get_info
|
|
}
|
|
};
|
|
|
|
|
|
static int
|
|
component_open(void)
|
|
{
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
static int
|
|
component_init(bool enable_progress_threads, bool enable_mpi_threads)
|
|
{
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
static int
|
|
component_finalize(void)
|
|
{
|
|
/* clean up requests free list */
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
static int
|
|
check_win_ok(ompi_communicator_t *comm, int flavor)
|
|
{
|
|
int i;
|
|
|
|
if (! (MPI_WIN_FLAVOR_SHARED == flavor
|
|
|| MPI_WIN_FLAVOR_ALLOCATE == flavor) ) {
|
|
return OMPI_ERR_NOT_SUPPORTED;
|
|
}
|
|
|
|
for (i = 0 ; i < ompi_comm_size(comm) ; ++i) {
|
|
if (!OPAL_PROC_ON_LOCAL_NODE(ompi_comm_peer_lookup(comm, i)->super.proc_flags)) {
|
|
return OMPI_ERR_RMA_SHARED;
|
|
}
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
static int
|
|
component_query(struct ompi_win_t *win, void **base, size_t size, int disp_unit,
|
|
struct ompi_communicator_t *comm, struct ompi_info_t *info,
|
|
int flavor)
|
|
{
|
|
int ret;
|
|
if (OMPI_SUCCESS != (ret = check_win_ok(comm, flavor))) {
|
|
if (OMPI_ERR_NOT_SUPPORTED == ret) {
|
|
return -1;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
return 100;
|
|
}
|
|
|
|
|
|
static int
|
|
component_select(struct ompi_win_t *win, void **base, size_t size, int disp_unit,
|
|
struct ompi_communicator_t *comm, struct ompi_info_t *info,
|
|
int flavor, int *model)
|
|
{
|
|
ompi_osc_sm_module_t *module = NULL;
|
|
int ret = OMPI_ERROR;
|
|
|
|
if (OMPI_SUCCESS != (ret = check_win_ok(comm, flavor))) {
|
|
return ret;
|
|
}
|
|
|
|
/* create module structure */
|
|
module = (ompi_osc_sm_module_t*)
|
|
calloc(1, sizeof(ompi_osc_sm_module_t));
|
|
if (NULL == module) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
|
|
/* fill in the function pointer part */
|
|
memcpy(module, &ompi_osc_sm_module_template,
|
|
sizeof(ompi_osc_base_module_t));
|
|
|
|
/* need our communicator for collectives in next phase */
|
|
ret = ompi_comm_dup(comm, &module->comm);
|
|
if (OMPI_SUCCESS != ret) goto error;
|
|
|
|
module->flavor = flavor;
|
|
|
|
/* create the segment */
|
|
if (1 == ompi_comm_size(comm)) {
|
|
module->segment_base = NULL;
|
|
module->sizes = malloc(sizeof(size_t));
|
|
if (NULL == module->sizes) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
module->bases = malloc(sizeof(void*));
|
|
if (NULL == module->bases) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
|
|
module->sizes[0] = size;
|
|
module->bases[0] = malloc(size);
|
|
if (NULL == module->bases[0]) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
|
|
module->global_state = malloc(sizeof(ompi_osc_sm_global_state_t));
|
|
if (NULL == module->global_state) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
module->node_states = malloc(sizeof(ompi_osc_sm_node_state_t));
|
|
if (NULL == module->node_states) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
|
|
} else {
|
|
unsigned long total, *rbuf;
|
|
char *data_file;
|
|
int i, flag;
|
|
size_t pagesize;
|
|
size_t state_size;
|
|
|
|
OPAL_OUTPUT_VERBOSE((1, ompi_osc_base_framework.framework_output,
|
|
"allocating shared memory region of size %ld\n", (long) size));
|
|
|
|
/* get the pagesize */
|
|
pagesize = opal_getpagesize();
|
|
|
|
rbuf = malloc(sizeof(unsigned long) * ompi_comm_size(module->comm));
|
|
if (NULL == rbuf) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
|
|
module->noncontig = false;
|
|
if (OMPI_SUCCESS != ompi_info_get_bool(info, "alloc_shared_noncontig",
|
|
&module->noncontig, &flag)) {
|
|
goto error;
|
|
}
|
|
|
|
if (module->noncontig) {
|
|
total = ((size - 1) / pagesize + 1) * pagesize;
|
|
} else {
|
|
total = size;
|
|
}
|
|
ret = module->comm->c_coll.coll_allgather(&total, 1, MPI_UNSIGNED_LONG,
|
|
rbuf, 1, MPI_UNSIGNED_LONG,
|
|
module->comm,
|
|
module->comm->c_coll.coll_allgather_module);
|
|
if (OMPI_SUCCESS != ret) return ret;
|
|
|
|
total = 0;
|
|
for (i = 0 ; i < ompi_comm_size(module->comm) ; ++i) {
|
|
total += rbuf[i];
|
|
}
|
|
|
|
if (asprintf(&data_file, "%s"OPAL_PATH_SEP"shared_window_%d.%s",
|
|
ompi_process_info.job_session_dir,
|
|
ompi_comm_get_cid(module->comm),
|
|
ompi_process_info.nodename) < 0) {
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
|
|
/* user opal/shmem directly to create a shared memory segment */
|
|
state_size = sizeof(ompi_osc_sm_global_state_t) + sizeof(ompi_osc_sm_node_state_t) * ompi_comm_size(module->comm);
|
|
if (0 == ompi_comm_rank (module->comm)) {
|
|
ret = opal_shmem_segment_create (&module->seg_ds, data_file, total + pagesize + state_size);
|
|
if (OPAL_SUCCESS != ret) {
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
ret = module->comm->c_coll.coll_bcast (&module->seg_ds, sizeof (module->seg_ds), MPI_BYTE, 0,
|
|
module->comm, module->comm->c_coll.coll_bcast_module);
|
|
if (OMPI_SUCCESS != ret) {
|
|
goto error;
|
|
}
|
|
|
|
module->segment_base = opal_shmem_segment_attach (&module->seg_ds);
|
|
if (NULL == module->segment_base) {
|
|
goto error;
|
|
}
|
|
|
|
module->sizes = malloc(sizeof(size_t) * ompi_comm_size(module->comm));
|
|
if (NULL == module->sizes) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
module->bases = malloc(sizeof(void*) * ompi_comm_size(module->comm));
|
|
if (NULL == module->bases) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
|
|
module->global_state = (ompi_osc_sm_global_state_t *) (module->segment_base);
|
|
module->node_states = (ompi_osc_sm_node_state_t *) (module->global_state + 1);
|
|
|
|
for (i = 0, total = state_size ; i < ompi_comm_size(module->comm) ; ++i) {
|
|
module->sizes[i] = rbuf[i];
|
|
if (module->sizes[i]) {
|
|
module->bases[i] = ((char *) module->segment_base) + total;
|
|
total += rbuf[i];
|
|
} else {
|
|
module->bases[i] = NULL;
|
|
}
|
|
}
|
|
|
|
free(rbuf);
|
|
}
|
|
|
|
/* initialize my state shared */
|
|
module->my_node_state = &module->node_states[ompi_comm_rank(module->comm)];
|
|
memset (module->my_node_state, 0, sizeof(*module->my_node_state));
|
|
|
|
*base = module->bases[ompi_comm_rank(module->comm)];
|
|
|
|
opal_atomic_init(&module->my_node_state->accumulate_lock, OPAL_ATOMIC_UNLOCKED);
|
|
|
|
/* share everyone's displacement units. */
|
|
module->disp_units = malloc(sizeof(int) * ompi_comm_size(module->comm));
|
|
ret = module->comm->c_coll.coll_allgather(&disp_unit, 1, MPI_INT,
|
|
module->disp_units, 1, MPI_INT,
|
|
module->comm,
|
|
module->comm->c_coll.coll_allgather_module);
|
|
if (OMPI_SUCCESS != ret) goto error;
|
|
|
|
module->start_group = NULL;
|
|
module->post_group = NULL;
|
|
|
|
/* initialize synchronization code */
|
|
module->my_sense = 1;
|
|
|
|
module->outstanding_locks = calloc(ompi_comm_size(module->comm), sizeof(enum ompi_osc_sm_locktype_t));
|
|
if (NULL == module->outstanding_locks) {
|
|
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
goto error;
|
|
}
|
|
|
|
if (0 == ompi_comm_rank(module->comm)) {
|
|
#if HAVE_PTHREAD_CONDATTR_SETPSHARED && HAVE_PTHREAD_MUTEXATTR_SETPSHARED
|
|
pthread_mutexattr_t mattr;
|
|
pthread_condattr_t cattr;
|
|
bool blocking_fence=false;
|
|
int flag;
|
|
|
|
if (OMPI_SUCCESS != ompi_info_get_bool(info, "blocking_fence",
|
|
&blocking_fence, &flag)) {
|
|
goto error;
|
|
}
|
|
|
|
if (blocking_fence) {
|
|
ret = pthread_mutexattr_init(&mattr);
|
|
ret = pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
|
|
if (ret != 0) {
|
|
module->global_state->use_barrier_for_fence = 1;
|
|
} else {
|
|
ret = pthread_mutex_init(&module->global_state->mtx, &mattr);
|
|
if (ret != 0) {
|
|
module->global_state->use_barrier_for_fence = 1;
|
|
} else {
|
|
pthread_condattr_init(&cattr);
|
|
pthread_condattr_setpshared(&cattr, PTHREAD_PROCESS_SHARED);
|
|
ret = pthread_cond_init(&module->global_state->cond, &cattr);
|
|
if (ret != 0) return OMPI_ERROR;
|
|
pthread_condattr_destroy(&cattr);
|
|
}
|
|
}
|
|
module->global_state->use_barrier_for_fence = 0;
|
|
module->global_state->sense = module->my_sense;
|
|
module->global_state->count = ompi_comm_size(module->comm);
|
|
pthread_mutexattr_destroy(&mattr);
|
|
} else {
|
|
module->global_state->use_barrier_for_fence = 1;
|
|
}
|
|
#else
|
|
module->global_state->use_barrier_for_fence = 1;
|
|
#endif
|
|
}
|
|
|
|
ret = module->comm->c_coll.coll_barrier(module->comm,
|
|
module->comm->c_coll.coll_barrier_module);
|
|
if (OMPI_SUCCESS != ret) goto error;
|
|
|
|
*model = MPI_WIN_UNIFIED;
|
|
|
|
win->w_osc_module = &module->super;
|
|
|
|
return OMPI_SUCCESS;
|
|
|
|
error:
|
|
if (NULL != module->comm) ompi_comm_free(&module->comm);
|
|
if (NULL != module) free(module);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_sm_shared_query(struct ompi_win_t *win, int rank, size_t *size, int *disp_unit, void *baseptr)
|
|
{
|
|
ompi_osc_sm_module_t *module =
|
|
(ompi_osc_sm_module_t*) win->w_osc_module;
|
|
|
|
if (module->flavor != MPI_WIN_FLAVOR_SHARED) {
|
|
return MPI_ERR_WIN;
|
|
}
|
|
|
|
if (MPI_PROC_NULL != rank) {
|
|
*size = module->sizes[rank];
|
|
*((void**) baseptr) = module->bases[rank];
|
|
*disp_unit = module->disp_units[rank];
|
|
} else {
|
|
int i = 0;
|
|
|
|
*size = 0;
|
|
*((void**) baseptr) = NULL;
|
|
*disp_unit = 0;
|
|
for (i = 0 ; i < ompi_comm_size(module->comm) ; ++i) {
|
|
if (0 != module->sizes[i]) {
|
|
*size = module->sizes[i];
|
|
*((void**) baseptr) = module->bases[i];
|
|
*disp_unit = module->disp_units[i];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_sm_attach(struct ompi_win_t *win, void *base, size_t len)
|
|
{
|
|
ompi_osc_sm_module_t *module =
|
|
(ompi_osc_sm_module_t*) win->w_osc_module;
|
|
|
|
if (module->flavor != MPI_WIN_FLAVOR_DYNAMIC) {
|
|
return MPI_ERR_RMA_ATTACH;
|
|
}
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_sm_detach(struct ompi_win_t *win, void *base)
|
|
{
|
|
ompi_osc_sm_module_t *module =
|
|
(ompi_osc_sm_module_t*) win->w_osc_module;
|
|
|
|
if (module->flavor != MPI_WIN_FLAVOR_DYNAMIC) {
|
|
return MPI_ERR_RMA_ATTACH;
|
|
}
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_sm_free(struct ompi_win_t *win)
|
|
{
|
|
ompi_osc_sm_module_t *module =
|
|
(ompi_osc_sm_module_t*) win->w_osc_module;
|
|
|
|
/* free memory */
|
|
if (NULL != module->segment_base) {
|
|
/* synchronize */
|
|
module->comm->c_coll.coll_barrier(module->comm,
|
|
module->comm->c_coll.coll_barrier_module);
|
|
|
|
if (0 == ompi_comm_rank (module->comm)) {
|
|
opal_shmem_unlink (&module->seg_ds);
|
|
}
|
|
|
|
opal_shmem_segment_detach (&module->seg_ds);
|
|
} else {
|
|
free(module->node_states);
|
|
free(module->global_state);
|
|
free(module->bases[0]);
|
|
free(module->bases);
|
|
free(module->sizes);
|
|
}
|
|
|
|
/* cleanup */
|
|
ompi_comm_free(&module->comm);
|
|
free(module);
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_sm_set_info(struct ompi_win_t *win, struct ompi_info_t *info)
|
|
{
|
|
ompi_osc_sm_module_t *module =
|
|
(ompi_osc_sm_module_t*) win->w_osc_module;
|
|
|
|
/* enforce collectiveness... */
|
|
return module->comm->c_coll.coll_barrier(module->comm,
|
|
module->comm->c_coll.coll_barrier_module);
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_sm_get_info(struct ompi_win_t *win, struct ompi_info_t **info_used)
|
|
{
|
|
ompi_osc_sm_module_t *module =
|
|
(ompi_osc_sm_module_t*) win->w_osc_module;
|
|
|
|
ompi_info_t *info = OBJ_NEW(ompi_info_t);
|
|
if (NULL == info) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
|
|
if (module->flavor == MPI_WIN_FLAVOR_SHARED) {
|
|
ompi_info_set(info, "blocking_fence",
|
|
(1 == module->global_state->use_barrier_for_fence) ? "true" : "false");
|
|
ompi_info_set(info, "alloc_shared_noncontig",
|
|
(module->noncontig) ? "true" : "false");
|
|
}
|
|
|
|
*info_used = info;
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|