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openmpi/ompi/mca/osc/pt2pt/osc_pt2pt_component.c
Jeff Squyres e7ecd56bd2 This commit represents a bunch of work on a Mercurial side branch. As 
such, the commit message back to the master SVN repository is fairly
long.

= ORTE Job-Level Output Messages =

Add two new interfaces that should be used for all new code throughout
the ORTE and OMPI layers (we already make the search-and-replace on
the existing ORTE / OMPI layers):

 * orte_output(): (and corresponding friends ORTE_OUTPUT,
   orte_output_verbose, etc.)  This function sends the output directly
   to the HNP for processing as part of a job-specific output
   channel.  It supports all the same outputs as opal_output()
   (syslog, file, stdout, stderr), but for stdout/stderr, the output
   is sent to the HNP for processing and output.  More on this below.
 * orte_show_help(): This function is a drop-in-replacement for
   opal_show_help(), with two differences in functionality:
   1. the rendered text help message output is sent to the HNP for
      display (rather than outputting directly into the process' stderr
      stream)
   1. the HNP detects duplicate help messages and does not display them
      (so that you don't see the same error message N times, once from
      each of your N MPI processes); instead, it counts "new" instances
      of the help message and displays a message every ~5 seconds when
      there are new ones ("I got X new copies of the help message...")

opal_show_help and opal_output still exist, but they only output in
the current process.  The intent for the new orte_* functions is that
they can apply job-level intelligence to the output.  As such, we
recommend that all new ORTE and OMPI code use the new orte_*
functions, not thei opal_* functions.

=== New code ===

For ORTE and OMPI programmers, here's what you need to do differently
in new code:

 * Do not include opal/util/show_help.h or opal/util/output.h.
   Instead, include orte/util/output.h (this one header file has
   declarations for both the orte_output() series of functions and
   orte_show_help()).
 * Effectively s/opal_output/orte_output/gi throughout your code.
   Note that orte_output_open() takes a slightly different argument
   list (as a way to pass data to the filtering stream -- see below),
   so you if explicitly call opal_output_open(), you'll need to
   slightly adapt to the new signature of orte_output_open().
 * Literally s/opal_show_help/orte_show_help/.  The function signature
   is identical.

=== Notes ===

 * orte_output'ing to stream 0 will do similar to what
   opal_output'ing did, so leaving a hard-coded "0" as the first
   argument is safe.
 * For systems that do not use ORTE's RML or the HNP, the effect of
   orte_output_* and orte_show_help will be identical to their opal
   counterparts (the additional information passed to
   orte_output_open() will be lost!).  Indeed, the orte_* functions
   simply become trivial wrappers to their opal_* counterparts.  Note
   that we have not tested this; the code is simple but it is quite
   possible that we mucked something up.

= Filter Framework =

Messages sent view the new orte_* functions described above and
messages output via the IOF on the HNP will now optionally be passed
through a new "filter" framework before being output to
stdout/stderr.  The "filter" OPAL MCA framework is intended to allow
preprocessing to messages before they are sent to their final
destinations.  The first component that was written in the filter
framework was to create an XML stream, segregating all the messages
into different XML tags, etc.  This will allow 3rd party tools to read
the stdout/stderr from the HNP and be able to know exactly what each
text message is (e.g., a help message, another OMPI infrastructure
message, stdout from the user process, stderr from the user process,
etc.).

Filtering is not active by default.  Filter components must be
specifically requested, such as:

{{{
$ mpirun --mca filter xml ...
}}}

There can only be one filter component active.

= New MCA Parameters =

The new functionality described above introduces two new MCA
parameters:

 * '''orte_base_help_aggregate''': Defaults to 1 (true), meaning that
   help messages will be aggregated, as described above.  If set to 0,
   all help messages will be displayed, even if they are duplicates
   (i.e., the original behavior).
 * '''orte_base_show_output_recursions''': An MCA parameter to help
   debug one of the known issues, described below.  It is likely that
   this MCA parameter will disappear before v1.3 final.

= Known Issues =

 * The XML filter component is not complete.  The current output from
   this component is preliminary and not real XML.  A bit more work
   needs to be done to configure.m4 search for an appropriate XML
   library/link it in/use it at run time.
 * There are possible recursion loops in the orte_output() and
   orte_show_help() functions -- e.g., if RML send calls orte_output()
   or orte_show_help().  We have some ideas how to fix these, but
   figured that it was ok to commit before feature freeze with known
   issues.  The code currently contains sub-optimal workarounds so
   that this will not be a problem, but it would be good to actually
   solve the problem rather than have hackish workarounds before v1.3 final.

This commit was SVN r18434.
2008-05-13 20:00:55 +00:00

762 строки
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Исходник Ответственный История

/*
* Copyright (c) 2004-2007 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2006 The Trustees of the University of Tennessee.
* 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 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <string.h>
#include "osc_pt2pt.h"
#include "osc_pt2pt_sendreq.h"
#include "osc_pt2pt_replyreq.h"
#include "osc_pt2pt_header.h"
#include "osc_pt2pt_data_move.h"
#include "osc_pt2pt_buffer.h"
#include "opal/threads/mutex.h"
#include "opal/util/arch.h"
#include "ompi/info/info.h"
#include "ompi/communicator/communicator.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/mca/pml/pml.h"
static int component_open(void);
static void component_fragment_cb(ompi_osc_pt2pt_mpireq_t *mpireq);
#if OMPI_ENABLE_PROGRESS_THREADS
static void* component_thread_fn(opal_object_t *obj);
#endif
ompi_osc_pt2pt_component_t mca_osc_pt2pt_component = {
{ /* ompi_osc_base_component_t */
{ /* ompi_base_component_t */
OMPI_OSC_BASE_VERSION_1_0_0,
"pt2pt",
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 checkpoint ready - JJH Double check this... */
MCA_BASE_METADATA_PARAM_CHECKPOINT
},
ompi_osc_pt2pt_component_init,
ompi_osc_pt2pt_component_query,
ompi_osc_pt2pt_component_select,
ompi_osc_pt2pt_component_finalize
}
};
ompi_osc_pt2pt_module_t ompi_osc_pt2pt_module_template = {
{
ompi_osc_pt2pt_module_free,
ompi_osc_pt2pt_module_put,
ompi_osc_pt2pt_module_get,
ompi_osc_pt2pt_module_accumulate,
ompi_osc_pt2pt_module_fence,
ompi_osc_pt2pt_module_start,
ompi_osc_pt2pt_module_complete,
ompi_osc_pt2pt_module_post,
ompi_osc_pt2pt_module_wait,
ompi_osc_pt2pt_module_test,
ompi_osc_pt2pt_module_lock,
ompi_osc_pt2pt_module_unlock,
}
};
/* look up parameters for configuring this window. The code first
looks in the info structure passed by the user, then through mca
parameters. */
static bool
check_config_value_bool(char *key, ompi_info_t *info)
{
char *value_string;
int value_len, ret, flag, param;
bool result;
ret = ompi_info_get_valuelen(info, key, &value_len, &flag);
if (OMPI_SUCCESS != ret) goto info_not_found;
if (flag == 0) goto info_not_found;
value_len++;
value_string = (char*)malloc(sizeof(char) * value_len);
if (NULL == value_string) goto info_not_found;
ret = ompi_info_get(info, key, value_len, value_string, &flag);
if (OMPI_SUCCESS != ret) {
free(value_string);
goto info_not_found;
}
assert(flag != 0);
ret = ompi_info_value_to_bool(value_string, &result);
free(value_string);
if (OMPI_SUCCESS != ret) goto info_not_found;
return result;
info_not_found:
param = mca_base_param_find("osc", "pt2pt", key);
if (param == OPAL_ERROR) return false;
ret = mca_base_param_lookup_int(param, &flag);
if (OMPI_SUCCESS != ret) return false;
return OPAL_INT_TO_BOOL(flag);
}
static int
component_open(void)
{
int tmp;
mca_base_param_reg_int(&mca_osc_pt2pt_component.super.osc_version,
"no_locks",
"Enable optimizations available only if MPI_LOCK is not used.",
false, false, 0, NULL);
mca_base_param_reg_int(&mca_osc_pt2pt_component.super.osc_version,
"eager_limit",
"Max size of eagerly sent data",
false, false, 16 * 1024,
&tmp);
mca_osc_pt2pt_component.p2p_c_eager_size = tmp;
return OMPI_SUCCESS;
}
int
ompi_osc_pt2pt_component_init(bool enable_progress_threads,
bool enable_mpi_threads)
{
/* we can run with either threads or not threads (may not be able
to do win locks)... */
mca_osc_pt2pt_component.p2p_c_have_progress_threads =
enable_progress_threads;
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_lock, opal_mutex_t);
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_modules,
opal_hash_table_t);
opal_hash_table_init(&mca_osc_pt2pt_component.p2p_c_modules, 2);
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_request_lock,
opal_mutex_t);
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_request_cond,
opal_condition_t);
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_sendreqs, opal_free_list_t);
opal_free_list_init(&mca_osc_pt2pt_component.p2p_c_sendreqs,
sizeof(ompi_osc_pt2pt_sendreq_t),
OBJ_CLASS(ompi_osc_pt2pt_sendreq_t),
1, -1, 1);
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_replyreqs, opal_free_list_t);
opal_free_list_init(&mca_osc_pt2pt_component.p2p_c_replyreqs,
sizeof(ompi_osc_pt2pt_replyreq_t),
OBJ_CLASS(ompi_osc_pt2pt_replyreq_t),
1, -1, 1);
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_longreqs, opal_free_list_t);
opal_free_list_init(&mca_osc_pt2pt_component.p2p_c_longreqs,
sizeof(ompi_osc_pt2pt_longreq_t),
OBJ_CLASS(ompi_osc_pt2pt_longreq_t),
1, -1, 1);
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_buffers, opal_free_list_t);
opal_free_list_init(&mca_osc_pt2pt_component.p2p_c_buffers,
mca_osc_pt2pt_component.p2p_c_eager_size +
sizeof(ompi_osc_pt2pt_buffer_t),
OBJ_CLASS(ompi_osc_pt2pt_buffer_t),
1, -1, 1);
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_pending_requests,
opal_list_t);
#if OMPI_ENABLE_PROGRESS_THREADS
OBJ_CONSTRUCT(&mca_osc_pt2pt_component.p2p_c_thread, opal_thread_t);
mca_osc_pt2pt_component.p2p_c_thread_run = false;
#endif
return OMPI_SUCCESS;
}
int
ompi_osc_pt2pt_component_finalize(void)
{
size_t num_modules;
#if OMPI_ENABLE_PROGRESS_THREADS
void* ret;
#endif
if (0 !=
(num_modules = opal_hash_table_get_size(&mca_osc_pt2pt_component.p2p_c_modules))) {
orte_output(ompi_osc_base_output,
"WARNING: There were %d Windows created but not freed.",
(int) num_modules);
#if OMPI_ENABLE_PROGRESS_THREADS
mca_osc_pt2pt_component.p2p_c_thread_run = false;
opal_condition_broadcast(&ompi_request_cond);
opal_thread_join(&mca_osc_pt2pt_component.p2p_c_thread, &ret);
#else
opal_progress_unregister(ompi_osc_pt2pt_component_progress);
#endif
}
OBJ_DESTRUCT(&mca_osc_pt2pt_component.p2p_c_pending_requests);
OBJ_DESTRUCT(&mca_osc_pt2pt_component.p2p_c_buffers);
OBJ_DESTRUCT(&mca_osc_pt2pt_component.p2p_c_longreqs);
OBJ_DESTRUCT(&mca_osc_pt2pt_component.p2p_c_replyreqs);
OBJ_DESTRUCT(&mca_osc_pt2pt_component.p2p_c_sendreqs);
OBJ_DESTRUCT(&mca_osc_pt2pt_component.p2p_c_request_lock);
OBJ_DESTRUCT(&mca_osc_pt2pt_component.p2p_c_request_cond);
OBJ_DESTRUCT(&mca_osc_pt2pt_component.p2p_c_modules);
OBJ_DESTRUCT(&mca_osc_pt2pt_component.p2p_c_lock);
return OMPI_SUCCESS;
}
int
ompi_osc_pt2pt_component_query(ompi_win_t *win,
ompi_info_t *info,
ompi_communicator_t *comm)
{
/* we can always run - return a low priority */
return 5;
}
int
ompi_osc_pt2pt_component_select(ompi_win_t *win,
ompi_info_t *info,
ompi_communicator_t *comm)
{
ompi_osc_pt2pt_module_t *module = NULL;
int ret, i;
ompi_osc_pt2pt_buffer_t *buffer = NULL;
opal_free_list_item_t *item = NULL;
/* create module structure */
module = (ompi_osc_pt2pt_module_t*)
calloc(1, sizeof(ompi_osc_pt2pt_module_t));
if (NULL == module) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
/* fill in the function pointer part */
memcpy(module, &ompi_osc_pt2pt_module_template,
sizeof(ompi_osc_base_module_t));
/* initialize the p2p part */
OBJ_CONSTRUCT(&(module->p2p_lock), opal_mutex_t);
OBJ_CONSTRUCT(&(module->p2p_cond), opal_condition_t);
OBJ_CONSTRUCT(&(module->p2p_acc_lock), opal_mutex_t);
OBJ_CONSTRUCT(&module->p2p_pending_sendreqs, opal_list_t);
OBJ_CONSTRUCT(&(module->p2p_copy_pending_sendreqs), opal_list_t);
OBJ_CONSTRUCT(&(module->p2p_locks_pending), opal_list_t);
OBJ_CONSTRUCT(&(module->p2p_unlocks_pending), opal_list_t);
module->p2p_win = win;
ret = ompi_comm_dup(comm, &(module->p2p_comm), 0);
if (ret != OMPI_SUCCESS) goto cleanup;
orte_output_verbose(1, ompi_osc_base_output,
"pt2pt component creating window with id %d",
ompi_comm_get_cid(module->p2p_comm));
module->p2p_num_pending_sendreqs = (unsigned int*)
malloc(sizeof(unsigned int) * ompi_comm_size(module->p2p_comm));
if (NULL == module->p2p_num_pending_sendreqs) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto cleanup;
}
memset(module->p2p_num_pending_sendreqs, 0,
sizeof(unsigned int) * ompi_comm_size(module->p2p_comm));
module->p2p_num_pending_out = 0;
module->p2p_num_pending_in = 0;
module->p2p_num_post_msgs = 0;
module->p2p_num_complete_msgs = 0;
module->p2p_tag_counter = 0;
module->p2p_copy_num_pending_sendreqs = (unsigned int*)
malloc(sizeof(unsigned int) * ompi_comm_size(module->p2p_comm));
if (NULL == module->p2p_copy_num_pending_sendreqs) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto cleanup;
}
memset(module->p2p_num_pending_sendreqs, 0,
sizeof(unsigned int) * ompi_comm_size(module->p2p_comm));
/* fence data */
module->p2p_fence_coll_counts = (int*)
malloc(sizeof(int) * ompi_comm_size(module->p2p_comm));
if (NULL == module->p2p_fence_coll_counts) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto cleanup;
}
for (i = 0 ; i < ompi_comm_size(module->p2p_comm) ; ++i) {
module->p2p_fence_coll_counts[i] = 1;
}
/* pwsc data */
module->p2p_pw_group = NULL;
module->p2p_sc_group = NULL;
module->p2p_sc_remote_active_ranks = (bool*)
malloc(sizeof(bool) * ompi_comm_size(module->p2p_comm));
if (NULL == module->p2p_sc_remote_active_ranks) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto cleanup;
}
module->p2p_sc_remote_ranks = (int*)
malloc(sizeof(int) * ompi_comm_size(module->p2p_comm));
if (NULL == module->p2p_sc_remote_ranks) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto cleanup;
}
/* lock data */
module->p2p_lock_status = 0;
module->p2p_shared_count = 0;
module->p2p_lock_received_ack = 0;
/* update component data */
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
opal_hash_table_set_value_uint32(&mca_osc_pt2pt_component.p2p_c_modules,
ompi_comm_get_cid(module->p2p_comm),
module);
ret = opal_hash_table_get_size(&mca_osc_pt2pt_component.p2p_c_modules);
if (ret == 1) {
#if OMPI_ENABLE_PROGRESS_THREADS
mca_osc_pt2pt_component.p2p_c_thread_run = true;
mca_osc_pt2pt_component.p2p_c_thread.t_run = component_thread_fn;
mca_osc_pt2pt_component.p2p_c_thread.t_arg = NULL;
ret = opal_thread_start(&mca_osc_pt2pt_component.p2p_c_thread);
#else
ret = opal_progress_register(ompi_osc_pt2pt_component_progress);
#endif
} else {
ret = OMPI_SUCCESS;
}
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
if (OMPI_SUCCESS != ret) goto cleanup;
/* fill in window information */
win->w_osc_module = (ompi_osc_base_module_t*) module;
if (check_config_value_bool("no_locks", info)) {
win->w_flags |= OMPI_WIN_NO_LOCKS;
}
/* sync memory - make sure all initialization completed */
opal_atomic_mb();
/* start up receive for protocol headers */
OPAL_FREE_LIST_WAIT(&mca_osc_pt2pt_component.p2p_c_buffers,
item, ret);
if (OMPI_SUCCESS != ret) goto cleanup;
buffer = (ompi_osc_pt2pt_buffer_t*) item;
buffer->mpireq.cbfunc = component_fragment_cb;
buffer->mpireq.cbdata = (void*) module;
ret = MCA_PML_CALL(irecv(buffer->payload,
mca_osc_pt2pt_component.p2p_c_eager_size,
MPI_BYTE,
MPI_ANY_SOURCE,
CONTROL_MSG_TAG,
module->p2p_comm,
&buffer->mpireq.request));
if (OMPI_SUCCESS != ret) goto cleanup;
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
&buffer->mpireq.super.super);
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
return OMPI_SUCCESS;
cleanup:
OBJ_DESTRUCT(&module->p2p_unlocks_pending);
OBJ_DESTRUCT(&module->p2p_locks_pending);
OBJ_DESTRUCT(&module->p2p_copy_pending_sendreqs);
OBJ_DESTRUCT(&module->p2p_pending_sendreqs);
OBJ_DESTRUCT(&module->p2p_acc_lock);
OBJ_DESTRUCT(&module->p2p_cond);
OBJ_DESTRUCT(&module->p2p_lock);
if (NULL != buffer) {
OPAL_FREE_LIST_RETURN(&mca_osc_pt2pt_component.p2p_c_buffers, item);
}
if (NULL != module->p2p_sc_remote_ranks) {
free(module->p2p_sc_remote_ranks);
}
if (NULL != module->p2p_sc_remote_active_ranks) {
free(module->p2p_sc_remote_active_ranks);
}
if (NULL != module->p2p_fence_coll_counts) {
free(module->p2p_fence_coll_counts);
}
if (NULL != module->p2p_copy_num_pending_sendreqs) {
free(module->p2p_copy_num_pending_sendreqs);
}
if (NULL != module->p2p_num_pending_sendreqs) {
free(module->p2p_num_pending_sendreqs);
}
if (NULL != module->p2p_comm) ompi_comm_free(&module->p2p_comm);
#if OMPI_ENABLE_DEBUG
memset(module, 0, sizeof(ompi_osc_base_module_t));
#endif
if (NULL != module) free(module);
return ret;
}
/* dispatch for callback on message completion */
static void
component_fragment_cb(ompi_osc_pt2pt_mpireq_t *mpireq)
{
int ret;
ompi_osc_pt2pt_buffer_t *buffer =
(ompi_osc_pt2pt_buffer_t*) mpireq;
ompi_osc_pt2pt_module_t *module =
(ompi_osc_pt2pt_module_t*) mpireq->cbdata;
assert(mpireq->status._count >= (int) sizeof(ompi_osc_pt2pt_base_header_t));
/* handle message */
switch (((ompi_osc_pt2pt_base_header_t*) buffer->payload)->hdr_type) {
case OMPI_OSC_PT2PT_HDR_PUT:
{
/* get our header and payload */
ompi_osc_pt2pt_send_header_t *header =
(ompi_osc_pt2pt_send_header_t*) buffer->payload;
void *payload = (void*) (header + 1);
#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
if (header->hdr_base.hdr_flags & OMPI_OSC_PT2PT_HDR_FLAG_NBO) {
OMPI_OSC_PT2PT_SEND_HDR_NTOH(*header);
}
#endif
if (!ompi_win_exposure_epoch(module->p2p_win)) {
if (OMPI_WIN_FENCE & ompi_win_get_mode(module->p2p_win)) {
ompi_win_set_mode(module->p2p_win,
OMPI_WIN_FENCE |
OMPI_WIN_ACCESS_EPOCH |
OMPI_WIN_EXPOSE_EPOCH);
}
}
ret = ompi_osc_pt2pt_sendreq_recv_put(module, header, payload);
}
break;
case OMPI_OSC_PT2PT_HDR_ACC:
{
/* get our header and payload */
ompi_osc_pt2pt_send_header_t *header =
(ompi_osc_pt2pt_send_header_t*) buffer->payload;
void *payload = (void*) (header + 1);
#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
if (header->hdr_base.hdr_flags & OMPI_OSC_PT2PT_HDR_FLAG_NBO) {
OMPI_OSC_PT2PT_SEND_HDR_NTOH(*header);
}
#endif
if (!ompi_win_exposure_epoch(module->p2p_win)) {
if (OMPI_WIN_FENCE & ompi_win_get_mode(module->p2p_win)) {
ompi_win_set_mode(module->p2p_win,
OMPI_WIN_FENCE |
OMPI_WIN_ACCESS_EPOCH |
OMPI_WIN_EXPOSE_EPOCH);
}
}
/* receive into temporary buffer */
ret = ompi_osc_pt2pt_sendreq_recv_accum(module, header, payload);
}
break;
case OMPI_OSC_PT2PT_HDR_GET:
{
/* get our header and payload */
ompi_osc_pt2pt_send_header_t *header =
(ompi_osc_pt2pt_send_header_t*) buffer->payload;
void *payload = (void*) (header + 1);
ompi_datatype_t *datatype;
ompi_osc_pt2pt_replyreq_t *replyreq;
ompi_proc_t *proc;
#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
if (header->hdr_base.hdr_flags & OMPI_OSC_PT2PT_HDR_FLAG_NBO) {
OMPI_OSC_PT2PT_SEND_HDR_NTOH(*header);
}
#endif
if (!ompi_win_exposure_epoch(module->p2p_win)) {
if (OMPI_WIN_FENCE & ompi_win_get_mode(module->p2p_win)) {
ompi_win_set_mode(module->p2p_win,
OMPI_WIN_FENCE |
OMPI_WIN_ACCESS_EPOCH |
OMPI_WIN_EXPOSE_EPOCH);
}
}
/* create or get a pointer to our datatype */
proc = ompi_comm_peer_lookup( module->p2p_comm, header->hdr_origin );
datatype = ompi_osc_base_datatype_create(proc, &payload);
if (NULL == datatype) {
orte_output(ompi_osc_base_output,
"Error recreating datatype. Aborting.");
ompi_mpi_abort(module->p2p_comm, 1, false);
}
/* create replyreq sendreq */
ret = ompi_osc_pt2pt_replyreq_alloc_init(module,
header->hdr_origin,
header->hdr_origin_sendreq,
header->hdr_target_disp,
header->hdr_target_count,
datatype,
&replyreq);
/* send replyreq */
ompi_osc_pt2pt_replyreq_send(module, replyreq);
/* sendreq does the right retain, so we can release safely */
OBJ_RELEASE(datatype);
}
break;
case OMPI_OSC_PT2PT_HDR_REPLY:
{
ompi_osc_pt2pt_reply_header_t *header =
(ompi_osc_pt2pt_reply_header_t*) buffer->payload;
void *payload = (void*) (header + 1);
ompi_osc_pt2pt_sendreq_t *sendreq;
#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
if (header->hdr_base.hdr_flags & OMPI_OSC_PT2PT_HDR_FLAG_NBO) {
OMPI_OSC_PT2PT_REPLY_HDR_NTOH(*header);
}
#endif
/* get original sendreq pointer */
sendreq = (ompi_osc_pt2pt_sendreq_t*) header->hdr_origin_sendreq.pval;
module = sendreq->req_module;
/* receive data */
ompi_osc_pt2pt_replyreq_recv(module, sendreq, header, payload);
}
break;
case OMPI_OSC_PT2PT_HDR_POST:
{
int32_t count;
OPAL_THREAD_LOCK(&module->p2p_lock);
count = (module->p2p_num_post_msgs -= 1);
OPAL_THREAD_UNLOCK(&module->p2p_lock);
if (count == 0) opal_condition_broadcast(&module->p2p_cond);
}
break;
case OMPI_OSC_PT2PT_HDR_COMPLETE:
{
ompi_osc_pt2pt_control_header_t *header =
(ompi_osc_pt2pt_control_header_t*) buffer->payload;
int32_t count;
#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
if (header->hdr_base.hdr_flags & OMPI_OSC_PT2PT_HDR_FLAG_NBO) {
OMPI_OSC_PT2PT_CONTROL_HDR_NTOH(*header);
}
#endif
/* we've heard from one more place, and have value reqs to
process */
OPAL_THREAD_LOCK(&module->p2p_lock);
count = (module->p2p_num_complete_msgs -= 1);
count += (module->p2p_num_pending_in += header->hdr_value[0]);
OPAL_THREAD_UNLOCK(&module->p2p_lock);
if (count == 0) opal_condition_broadcast(&module->p2p_cond);
}
break;
case OMPI_OSC_PT2PT_HDR_LOCK_REQ:
{
ompi_osc_pt2pt_control_header_t *header =
(ompi_osc_pt2pt_control_header_t*) buffer->payload;
int32_t count;
#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
if (header->hdr_base.hdr_flags & OMPI_OSC_PT2PT_HDR_FLAG_NBO) {
OMPI_OSC_PT2PT_CONTROL_HDR_NTOH(*header);
}
#endif
if (header->hdr_value[1] > 0) {
ompi_osc_pt2pt_passive_lock(module, header->hdr_value[0],
header->hdr_value[1]);
} else {
OPAL_THREAD_LOCK(&module->p2p_lock);
count = (module->p2p_lock_received_ack += 1);
OPAL_THREAD_UNLOCK(&module->p2p_lock);
if (count != 0) opal_condition_broadcast(&module->p2p_cond);
}
}
break;
case OMPI_OSC_PT2PT_HDR_UNLOCK_REQ:
{
ompi_osc_pt2pt_control_header_t *header =
(ompi_osc_pt2pt_control_header_t*) buffer->payload;
#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
if (header->hdr_base.hdr_flags & OMPI_OSC_PT2PT_HDR_FLAG_NBO) {
OMPI_OSC_PT2PT_CONTROL_HDR_NTOH(*header);
}
#endif
ompi_osc_pt2pt_passive_unlock(module, header->hdr_value[0],
header->hdr_value[1]);
}
break;
case OMPI_OSC_PT2PT_HDR_UNLOCK_REPLY:
{
int32_t count;
OPAL_THREAD_LOCK(&module->p2p_lock);
count = (module->p2p_num_pending_out -= 1);
OPAL_THREAD_UNLOCK(&module->p2p_lock);
if (count == 0) opal_condition_broadcast(&module->p2p_cond);
}
break;
default:
orte_output_verbose(5, ompi_osc_base_output,
"received one-sided packet for with unknown type");
}
ret = MCA_PML_CALL(irecv(buffer->payload,
mca_osc_pt2pt_component.p2p_c_eager_size,
MPI_BYTE,
MPI_ANY_SOURCE,
CONTROL_MSG_TAG,
module->p2p_comm,
&buffer->mpireq.request));
/* BWB -- FIX ME -- handle irecv errors */
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
opal_list_append(&mca_osc_pt2pt_component.p2p_c_pending_requests,
&buffer->mpireq.super.super);
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
}
int
ompi_osc_pt2pt_component_progress(void)
{
opal_list_item_t *item;
int ret, done = 0;
#if OMPI_ENABLE_PROGRESS_THREADS
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
#else
ret = OPAL_THREAD_TRYLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
if (ret != 0) return 0;
#endif
for (item = opal_list_get_first(&mca_osc_pt2pt_component.p2p_c_pending_requests) ;
item != opal_list_get_end(&mca_osc_pt2pt_component.p2p_c_pending_requests) ;
item = opal_list_get_next(item)) {
ompi_osc_pt2pt_mpireq_t *buffer =
(ompi_osc_pt2pt_mpireq_t*) item;
/* BWB - FIX ME */
#if OMPI_ENABLE_PROGRESS_THREADS == 0
if (buffer->request->req_state == OMPI_REQUEST_INACTIVE ||
buffer->request->req_complete) {
ret = ompi_request_test(&buffer->request,
&done,
&buffer->status);
} else {
done = 0;
ret = OMPI_SUCCESS;
}
#else
ret = ompi_request_test(&buffer->request,
&done,
&buffer->status);
#endif
if (OMPI_SUCCESS == ret && 0 != done) {
opal_list_remove_item(&mca_osc_pt2pt_component.p2p_c_pending_requests,
item);
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
buffer->cbfunc(buffer);
OPAL_THREAD_LOCK(&mca_osc_pt2pt_component.p2p_c_lock);
break;
}
}
OPAL_THREAD_UNLOCK(&mca_osc_pt2pt_component.p2p_c_lock);
return done;
}
#if OMPI_ENABLE_PROGRESS_THREADS
static void*
component_thread_fn(opal_object_t *obj)
{
struct timespec waittime;
while (mca_osc_pt2pt_component.p2p_c_thread_run) {
/* wake up whenever a request completes, to make sure it's not
for us */
waittime.tv_sec = 1;
waittime.tv_nsec = 0;
OPAL_THREAD_LOCK(&ompi_request_lock);
opal_condition_timedwait(&ompi_request_cond, &ompi_request_lock, &waittime);
OPAL_THREAD_UNLOCK(&ompi_request_lock);
ompi_osc_pt2pt_component_progress();
}
return NULL;
}
#endif
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