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/*
* Copyright (c) 2004-2005 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) 2010 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#define OMPI_BUILDING 0
#include "opal_config.h"
#undef NDEBUG
#define DEBUG
#include <assert.h>
#ifdef HAVE_PTHREAD_H
#include <pthread.h>
#endif
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "opal/sys/atomic.h"
/* default options */
int nreps = 100;
int nthreads = 2;
int enable_verbose = 0;
volatile int32_t vol32;
int32_t val32;
int32_t old32;
int32_t new32;
#if OPAL_HAVE_ATOMIC_MATH_64
volatile int64_t vol64;
int64_t val64;
int64_t old64;
int64_t new64;
#endif
volatile int volint;
int valint;
int oldint;
int newint;
volatile void *volptr;
void *oldptr;
void *newptr;
#if OPAL_HAVE_POSIX_THREADS
static void *thread_main(void *arg)
{
int rank = (int) (unsigned long) arg;
int i;
/* thread tests */
for (i = 0; i < nreps; i++) {
opal_atomic_add_32(&val32, 5);
#if OPAL_HAVE_ATOMIC_MATH_64
opal_atomic_add_64(&val64, 5);
#endif
opal_atomic_add(&valint, 5);
}
return (void *) (unsigned long) (rank + 1000);
}
#endif
int main(int argc, char *argv[])
{
#if OPAL_HAVE_POSIX_THREADS
int tid;
pthread_t *th;
#endif
if (argc != 2) {
printf("*** Incorrect number of arguments. Skipping test\n");
return 77;
}
nthreads = atoi(argv[1]);
/* first test single-threaded functionality */
/* -- cmpset 32-bit tests -- */
vol32 = 42, old32 = 42, new32 = 50;
assert(opal_atomic_cmpset_32(&vol32, old32, new32) == 1);
opal_atomic_rmb();
assert(vol32 == new32);
vol32 = 42, old32 = 420, new32 = 50;
assert(opal_atomic_cmpset_32(&vol32, old32, new32) == 0);
opal_atomic_rmb();
assert(vol32 == 42);
vol32 = 42, old32 = 42, new32 = 50;
assert(opal_atomic_cmpset_acq_32(&vol32, old32, new32) == 1);
assert(vol32 == new32);
vol32 = 42, old32 = 420, new32 = 50;
assert(opal_atomic_cmpset_acq_32(&vol32, old32, new32) == 0);
assert(vol32 == 42);
vol32 = 42, old32 = 42, new32 = 50;
assert(opal_atomic_cmpset_rel_32(&vol32, old32, new32) == 1);
opal_atomic_rmb();
assert(vol32 == new32);
vol32 = 42, old32 = 420, new32 = 50;
assert(opal_atomic_cmpset_rel_32(&vol32, old32, new32) == 0);
opal_atomic_rmb();
assert(vol32 == 42);
/* -- cmpset 64-bit tests -- */
#if OPAL_HAVE_ATOMIC_MATH_64
vol64 = 42, old64 = 42, new64 = 50;
assert(1 == opal_atomic_cmpset_64(&vol64, old64, new64));
opal_atomic_rmb();
assert(new64 == vol64);
vol64 = 42, old64 = 420, new64 = 50;
assert(opal_atomic_cmpset_64(&vol64, old64, new64) == 0);
opal_atomic_rmb();
assert(vol64 == 42);
vol64 = 42, old64 = 42, new64 = 50;
assert(opal_atomic_cmpset_acq_64(&vol64, old64, new64) == 1);
assert(vol64 == new64);
vol64 = 42, old64 = 420, new64 = 50;
assert(opal_atomic_cmpset_acq_64(&vol64, old64, new64) == 0);
assert(vol64 == 42);
vol64 = 42, old64 = 42, new64 = 50;
assert(opal_atomic_cmpset_rel_64(&vol64, old64, new64) == 1);
opal_atomic_rmb();
assert(vol64 == new64);
vol64 = 42, old64 = 420, new64 = 50;
assert(opal_atomic_cmpset_rel_64(&vol64, old64, new64) == 0);
opal_atomic_rmb();
assert(vol64 == 42);
#endif
/* -- cmpset int tests -- */
volint = 42, oldint = 42, newint = 50;
assert(opal_atomic_cmpset(&volint, oldint, newint) == 1);
opal_atomic_rmb();
assert(volint ==newint);
volint = 42, oldint = 420, newint = 50;
assert(opal_atomic_cmpset(&volint, oldint, newint) == 0);
opal_atomic_rmb();
assert(volint == 42);
volint = 42, oldint = 42, newint = 50;
assert(opal_atomic_cmpset_acq(&volint, oldint, newint) == 1);
assert(volint == newint);
volint = 42, oldint = 420, newint = 50;
assert(opal_atomic_cmpset_acq(&volint, oldint, newint) == 0);
assert(volint == 42);
volint = 42, oldint = 42, newint = 50;
assert(opal_atomic_cmpset_rel(&volint, oldint, newint) == 1);
opal_atomic_rmb();
assert(volint == newint);
volint = 42, oldint = 420, newint = 50;
assert(opal_atomic_cmpset_rel(&volint, oldint, newint) == 0);
opal_atomic_rmb();
assert(volint == 42);
/* -- cmpset ptr tests -- */
volptr = (void *) 42, oldptr = (void *) 42, newptr = (void *) 50;
assert(opal_atomic_cmpset_ptr(&volptr, oldptr, newptr) == 1);
opal_atomic_rmb();
assert(volptr == newptr);
volptr = (void *) 42, oldptr = (void *) 420, newptr = (void *) 50;
assert(opal_atomic_cmpset_ptr(&volptr, oldptr, newptr) == 0);
opal_atomic_rmb();
assert(volptr == (void *) 42);
volptr = (void *) 42, oldptr = (void *) 42, newptr = (void *) 50;
assert(opal_atomic_cmpset_acq_ptr(&volptr, oldptr, newptr) == 1);
assert(volptr == newptr);
volptr = (void *) 42, oldptr = (void *) 420, newptr = (void *) 50;
assert(opal_atomic_cmpset_acq_ptr(&volptr, oldptr, newptr) == 0);
assert(volptr == (void *) 42);
volptr = (void *) 42, oldptr = (void *) 42, newptr = (void *) 50;
assert(opal_atomic_cmpset_rel_ptr(&volptr, oldptr, newptr) == 1);
opal_atomic_rmb();
assert(volptr == newptr);
volptr = (void *) 42, oldptr = (void *) 420, newptr = (void *) 50;
assert(opal_atomic_cmpset_rel_ptr(&volptr, oldptr, newptr) == 0);
opal_atomic_rmb();
assert(volptr == (void *) 42);
/* -- add_32 tests -- */
val32 = 42;
assert(opal_atomic_add_32(&val32, 5) == (42 + 5));
opal_atomic_rmb();
assert((42 + 5) == val32);
/* -- add_64 tests -- */
#if OPAL_HAVE_ATOMIC_MATH_64
val64 = 42;
assert(opal_atomic_add_64(&val64, 5) == (42 + 5));
opal_atomic_rmb();
assert((42 + 5) == val64);
#endif
/* -- add_int tests -- */
valint = 42;
opal_atomic_add(&valint, 5);
opal_atomic_rmb();
assert((42 + 5) == valint);
/* threaded tests */
val32 = 0;
#if OPAL_HAVE_ATOMIC_MATH_64
val64 = 0ul;
#endif
valint = 0;
/* -- create the thread set -- */
#if OPAL_HAVE_POSIX_THREADS
th = (pthread_t *) malloc(nthreads * sizeof(pthread_t));
if (!th) {
perror("malloc");
exit(EXIT_FAILURE);
}
for (tid = 0; tid < nthreads; tid++) {
if (pthread_create(&th[tid], NULL, thread_main, (void *) (unsigned long) tid) != 0) {
perror("pthread_create");
exit(EXIT_FAILURE);
}
}
/* -- wait for the thread set to finish -- */
for (tid = 0; tid < nthreads; tid++) {
void *thread_return;
if (pthread_join(th[tid], &thread_return) != 0) {
perror("pthread_join");
exit(EXIT_FAILURE);
}
}
free(th);
opal_atomic_rmb();
assert((5 * nthreads * nreps) == val32);
#if OPAL_HAVE_ATOMIC_MATH_64
opal_atomic_rmb();
assert((5 * nthreads * nreps) == val64);
#endif
opal_atomic_rmb();
assert((5 * nthreads * nreps) == valint);
#endif
return 0;
}
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