ee3517427e
Add a framework to support different types of threading models including user space thread packages such as Qthreads and argobot: https://github.com/pmodels/argobots https://github.com/Qthreads/qthreads The default threading model is pthreads. Alternate thread models are specificed at configure time using the --with-threads=X option. The framework is static. The theading model to use is selected at Open MPI configure/build time. mca/threads: implement Argobots threading layer config: fix thread configury - Add double quotations - Change Argobot to Argobots config: implement Argobots check If the poll time is too long, MPI hangs. This quick fix just sets it to 0, but it is not good for the Pthreads version. Need to find a good way to abstract it. Note that even 1 (= 1 millisecond) causes disastrous performance degradation. rework threads MCA framework configury It now works more like the ompi/mca/rte configury, modulo some edge items that are special for threading package linking, etc. qthreads module some argobots cleanup Signed-off-by: Noah Evans <noah.evans@gmail.com> Signed-off-by: Shintaro Iwasaki <siwasaki@anl.gov> Signed-off-by: Howard Pritchard <howardp@lanl.gov>
121 строка
3.1 KiB
C
121 строка
3.1 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2008-2010 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "opal_config.h"
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#include <stdio.h>
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#include <time.h>
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#include "support.h"
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#include "opal/runtime/opal.h"
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#include "opal/constants.h"
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#include "opal/mca/threads/threads.h"
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#include "opal/mca/threads/condition.h"
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#include "opal/sys/atomic.h"
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static opal_mutex_t mutex;
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static opal_condition_t thr1_cond;
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static opal_condition_t thr2_cond;
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static volatile int thr1_count = 0;
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static volatile int thr2_count = 0;
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#define TEST_COUNT 100000
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static void* thr1_run(opal_object_t* obj)
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{
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int i;
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clock_t c1, c2;
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opal_mutex_lock(&mutex);
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c1 = clock();
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for(i=0; i<TEST_COUNT; i++) {
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opal_condition_wait(&thr1_cond, &mutex);
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opal_condition_signal(&thr2_cond);
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thr1_count++;
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}
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c2 = clock();
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opal_mutex_unlock(&mutex);
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fprintf(stderr, "thr1: time per iteration: %ld usec\n", (long)((c2 - c1) / TEST_COUNT));
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return NULL;
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}
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static void* thr2_run(opal_object_t* obj)
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{
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int i;
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clock_t c1, c2;
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opal_mutex_lock(&mutex);
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c1 = clock();
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for(i=0; i<TEST_COUNT; i++) {
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opal_condition_signal(&thr1_cond);
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opal_condition_wait(&thr2_cond, &mutex);
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thr2_count++;
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}
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c2 = clock();
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opal_mutex_unlock(&mutex);
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fprintf(stderr, "thr2: time per iteration: %ld usec\n", (long)((c2 - c1) / TEST_COUNT));
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return NULL;
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}
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int main(int argc, char** argv)
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{
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int rc;
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opal_thread_t* thr1;
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opal_thread_t* thr2;
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test_init("opal_condition_t");
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rc = opal_init(&argc, &argv);
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test_verify_int(OPAL_SUCCESS, rc);
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if (OPAL_SUCCESS != rc) {
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test_finalize();
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exit(1);
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}
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opal_set_using_threads(true);
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OBJ_CONSTRUCT(&mutex, opal_mutex_t);
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OBJ_CONSTRUCT(&thr1_cond, opal_condition_t);
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OBJ_CONSTRUCT(&thr2_cond, opal_condition_t);
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thr1 = OBJ_NEW(opal_thread_t);
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thr2 = OBJ_NEW(opal_thread_t);
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thr1->t_run = thr1_run;
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thr2->t_run = thr2_run;
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rc = opal_thread_start(thr1);
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test_verify_int(OPAL_SUCCESS, rc);
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rc = opal_thread_start(thr2);
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test_verify_int(OPAL_SUCCESS, rc);
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rc = opal_thread_join(thr1, NULL);
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test_verify_int(OPAL_SUCCESS, rc);
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test_verify_int(TEST_COUNT, thr1_count);
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rc = opal_thread_join(thr2, NULL);
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test_verify_int(OPAL_SUCCESS, rc);
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test_verify_int(TEST_COUNT, thr2_count);
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opal_finalize();
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return test_finalize();
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}
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