int main(int argc, char *argv[])
{
if (argc != 4) {
printf("Usage: %s nx ny steps.\n", argv[0]);
return 1;
}
int i;
le_point2 n = {atoi(argv[1]), atoi(argv[2])};
int steps = atoi(argv[3]);
le_task task;
le_material mat;
le_vec2 h = {1.0, 1.0};
real dt = 0.3;
le_vec2 center = {n.x / 2, n.y / 2};
char name[1000];
double t;
unsigned long cc;
/*
* Init material.
*/
le_init_material(2.0, 1.0, 1.5, &mat);
/*
* Init task.
*/
le_init_task(&task, dt, h, mat, n, ST_SOA);
/*
* Initial condition.
*/
le_set_ball(&task, center, 10.0, 1.0);
cc = getCC();
t = timer();
for (i = 0; i < steps; i++) {
if (save_every_step) {
sprintf(name, "out-%06d.vtk", i);
le_save_task(&task, name);
}
le_step_sse(&task);
}
t = timer() - t;
cc = getCC() - cc;
/*printf("Total time, s:\t\t%f\n", t);
printf("Time per step, s:\t%f\n", t / steps);*/
printf("%d %d %d %f %ld\n", n.x, n.y, steps, t, cc);
/*
* Save last step.
*/
le_save_task(&task, "result.vtk");
/*
* Free memory.
*/
le_free_task(&task);
return 0;
}
int main(int argc, char *argv[])
{
if (argc != 5) {
printf("Usage: %s nx ny steps threads.\n", argv[0]);
return 1;
}
int i, ti;
le_point2 n = {atoi(argv[1]), atoi(argv[2])};
int steps = atoi(argv[3]);
int max_threads = atoi(argv[4]);
le_task task;
le_material mat;
le_vec2 h = {1.0, 1.0};
real dt = 0.3;
le_vec2 center = {n.x / 2, n.y / 2};
char name[1000];
double t;
unsigned long cc;
/* pthread variables */
pthread_t threads[NUM_THREADS];
st_pthread data[NUM_THREADS];
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
/* end of pthread variables */
le_init_material(2.0, 1.0, 1.5, &mat);
task.max_threads = max_threads;
task.steps = steps;
le_init_task(&task, dt, h, mat, n);
le_set_ball(&task, center, 10.0, 1.0);
pthread_barrier_init(&b, NULL, max_threads);
cc = getCC();
t = timer();
for(ti = 0; ti < max_threads; ti++) {
data[ti].task = &task;
data[ti].thread_num = ti;
int rc = pthread_create(&(threads[ti]), &attr, le_step, (void *)(&(data[ti])));
assert(!rc);
}
for(ti = 0; ti < max_threads; ti++) {
void *st;
int rc = pthread_join(threads[ti], &st);
assert(!rc);;
}
t = timer() - t;
cc = getCC() - cc;
pthread_barrier_destroy(&b);
printf("%d %d %d %f ", n.x, n.y, steps, t);
le_save_task(&task, "result.vtk");
le_free_task(&task);
pthread_exit(NULL);
}