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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2014 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include <assert.h>
#include "support.h"
#include "opal/class/opal_lifo.h"
#include "opal/runtime/opal.h"
#include "opal/constants.h"
#include "opal/mca/threads/threads.h"
#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <sys/time.h>
#define OPAL_LIFO_TEST_THREAD_COUNT 8
#define ITERATIONS 1000000
#define ITEM_COUNT 100
#if !defined(timersub)
#define timersub(a, b, r) \
do { \
(r)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
if ((a)->tv_usec < (b)->tv_usec) { \
(r)->tv_sec--; \
(a)->tv_usec += 1000000; \
} \
(r)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
} while (0)
#endif
static void *thread_test (opal_object_t *arg) {
opal_thread_t *t = (opal_thread_t *) arg;
opal_lifo_t *lifo = (opal_lifo_t *) t->t_arg;
opal_list_item_t *item;
struct timeval start, stop, total;
double timing;
gettimeofday (&start, NULL);
for (int i = 0 ; i < ITERATIONS ; ++i) {
item = opal_lifo_pop_atomic (lifo);
if (NULL != item) {
(void) opal_lifo_push_atomic (lifo, item);
}
}
gettimeofday (&stop, NULL);
timersub(&stop, &start, &total);
timing = ((double) total.tv_sec + (double) total.tv_usec * 1e-6) / (double) ITERATIONS;
printf ("Atomics thread finished. Time: %d s %d us %d nsec/poppush\n", (int) total.tv_sec,
(int)total.tv_usec, (int)(timing / 1e-9));
return NULL;
}
static bool check_lifo_consistency (opal_lifo_t *lifo, int expected_count)
{
opal_list_item_t *item;
int count;
for (count = 0, item = (opal_list_item_t *) lifo->opal_lifo_head.data.item ; item != &lifo->opal_lifo_ghost ;
item = opal_list_get_next(item), count++);
return count == expected_count;
}
int main (int argc, char *argv[]) {
opal_thread_t threads[OPAL_LIFO_TEST_THREAD_COUNT];
opal_list_item_t *item, *prev, *item2;
struct timeval start, stop, total;
opal_lifo_t lifo;
bool success;
double timing;
int rc;
rc = opal_init_util (&argc, &argv);
test_verify_int(OPAL_SUCCESS, rc);
if (OPAL_SUCCESS != rc) {
test_finalize();
exit (1);
}
test_init("opal_lifo_t");
OBJ_CONSTRUCT(&lifo, opal_lifo_t);
item = OBJ_NEW(opal_list_item_t);
prev = opal_lifo_push_st (&lifo, item);
if (&lifo.opal_lifo_ghost == prev) {
test_success ();
} else {
test_failure (" opal_lifo_push_st on empty lifo");
}
item2 = opal_lifo_pop_st (&lifo);
if (item == item2) {
test_success ();
} else {
test_failure (" opal_lifo_pop_st");
}
OBJ_RELEASE(item);
for (int i = 0 ; i < ITEM_COUNT ; ++i) {
item = OBJ_NEW(opal_list_item_t);
item->item_free = 0;
opal_lifo_push_st (&lifo, item);
}
if (check_lifo_consistency (&lifo, ITEM_COUNT)) {
test_success ();
} else {
test_failure (" opal_lifo_push_st(multiple items)");
}
gettimeofday (&start, NULL);
for (int i = 0 ; i < ITERATIONS ; ++i) {
item = opal_lifo_pop_st (&lifo);
(void) opal_lifo_push_st (&lifo, item);
}
gettimeofday (&stop, NULL);
timersub(&stop, &start, &total);
timing = ((double) total.tv_sec + (double) total.tv_usec * 1e-6) / (double) ITERATIONS;
if (check_lifo_consistency (&lifo, ITEM_COUNT)) {
test_success ();
} else {
test_failure (" lifo push/pop");
}
printf ("Single thread test. Time: %d s %d us %d nsec/poppush\n", (int) total.tv_sec,
(int)total.tv_usec, (int)(timing / 1e-9));
threads[0].t_arg = &lifo;
thread_test ((opal_object_t *) &threads[0]);
if (check_lifo_consistency (&lifo, ITEM_COUNT)) {
test_success ();
} else {
test_failure (" lifo push/pop single-threaded with atomics");
}
gettimeofday (&start, NULL);
for (int i = 0 ; i < OPAL_LIFO_TEST_THREAD_COUNT ; ++i) {
OBJ_CONSTRUCT(&threads[i], opal_thread_t);
threads[i].t_run = thread_test;
threads[i].t_arg = &lifo;
opal_thread_start (threads + i);
}
for (int i = 0 ; i < OPAL_LIFO_TEST_THREAD_COUNT ; ++i) {
void *ret;
opal_thread_join (threads + i, &ret);
}
gettimeofday (&stop, NULL);
timersub(&stop, &start, &total);
timing = ((double) total.tv_sec + (double) total.tv_usec * 1e-6) / (double) (ITERATIONS * OPAL_LIFO_TEST_THREAD_COUNT);
if (check_lifo_consistency (&lifo, ITEM_COUNT)) {
test_success ();
} else {
test_failure (" lifo push/pop multi-threaded with atomics");
}
printf ("All threads finished. Thread count: %d Time: %d s %d us %d nsec/poppush\n",
OPAL_LIFO_TEST_THREAD_COUNT, (int) total.tv_sec, (int)total.tv_usec, (int)(timing / 1e-9));
success = true;
for (int i = 0 ; i < ITEM_COUNT ; ++i) {
item = opal_lifo_pop_st (&lifo);
if (NULL == item) {
success = false;
break;
}
OBJ_RELEASE(item);
}
if (success) {
test_success ();
} else {
test_failure (" list pop all items");
}
OBJ_DESTRUCT(&lifo);
opal_finalize_util ();
return test_finalize ();
}
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