int main(void) {
pthread_t threads[N_THREADS];
int i;
init_cpu_counters();
// Barrier initialization
if (pthread_barrier_init(&barr, NULL, N_THREADS)) {
printf("Could not create the barrier\n");
return -1;
}
SHARED_OBJECT_INIT();
for (i = 0; i < N_THREADS; i++)
threads[i] = StartThread(i);
for (i = 0; i < N_THREADS; i++)
pthread_join(threads[i], NULL);
d2 = getTimeMillis();
printf("time: %d\t", (int) (d2 - d1));
printStats();
#ifdef DEBUG
fprintf(stderr, "object counter: %d\n", object_lock.counter);
fprintf(stderr, "rounds: %d\n", object_lock.rounds);
fprintf(stderr, "Average helping: %f\n", (float)object_lock.counter/object_lock.rounds);
#endif
if (pthread_barrier_destroy(&barr)) {
printf("Could not destroy the barrier\n");
return -1;
}
return 0;
}
int main(void) {
SHARED_OBJECT_INIT();
pthread_spin_init(&lock, PTHREAD_PROCESS_SHARED);
BarrierInit(&bar, N_THREADS);
StartThreadsN(N_THREADS, Execute, _USE_UTHREADS_);
JoinThreadsN(N_THREADS);
d2 = getTimeMillis();
printf("time: %d (ms)\tthroughput: %.2f (millions ops/sec)\t", (int) (d2 - d1), RUNS*N_THREADS/(1000.0*(d2 - d1)));
printStats(N_THREADS);
return 0;
}
int main(void) {
SHARED_OBJECT_INIT();
BarrierInit(&bar, N_THREADS);
StartThreadsN(N_THREADS, Execute, _DONT_USE_UTHREADS_);
JoinThreadsN(N_THREADS);
d2 = getTimeMillis();
printf("time: %d (ms)\tthroughput: %.2f (millions ops/sec)\t", (int) (d2 - d1), RUNS*N_THREADS/(1000.0*(d2 - d1)));
printStats(N_THREADS);
#ifdef DEBUG
fprintf(stderr, "object counter: %d\n", object_lock.counter);
fprintf(stderr, "rounds: %d\n", object_lock.rounds);
fprintf(stderr, "Average helping: %f\n", (float)object_lock.counter/object_lock.rounds);
#endif
return 0;
}
