-#include <stdio.h>
#include "private.h"
+#include <string.h>
-// FIXME: could cause trouble with multithreaded procs on same host...
-// FIXME: add benchmarking flag?
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_bench, smpi,
+ "Logging specific to SMPI (benchmarking)");
-void smpi_bench_begin()
+void smpi_execute(double duration)
{
- SIMIX_mutex_lock(smpi_global->timer_mutex);
-
- xbt_os_timer_start(smpi_global->timer);
-
- return;
+ smx_host_t host = SIMIX_host_self();
+ smx_mutex_t mutex = smpi_process_mutex();
+ smx_cond_t cond = smpi_process_cond();
+ smx_action_t action;
+ e_surf_action_state_t state;
+
+ if (duration < 0.001)
+ return;
+ DEBUG1("Sleep for %f to handle real computation time",duration);
+ SIMIX_mutex_lock(mutex);
+
+ action =
+ SIMIX_action_execute(host, "execute",
+ duration * smpi_global->reference_speed);
+
+ SIMIX_register_action_to_condition(action, cond);
+ for (state = SIMIX_action_get_state(action);
+ state == SURF_ACTION_READY ||
+ state == SURF_ACTION_RUNNING; state = SIMIX_action_get_state(action)
+ ) {
+ SIMIX_cond_wait(cond, mutex);
+ }
+ SIMIX_unregister_action_to_condition(action, cond);
+ SIMIX_action_destroy(action);
+
+ SIMIX_mutex_unlock(mutex);
+
+ return;
}
-double smpi_bench_end()
+void smpi_start_timer()
{
- double duration;
- smx_host_t host;
- smx_action_t action;
-
- xbt_os_timer_stop(smpi_global->timer);
-
- duration = xbt_os_timer_elapsed(smpi_global->timer);
-
- host = SIMIX_host_self();
- action = SIMIX_action_execute(host, "computation", duration * SMPI_DEFAULT_SPEED);
-
- SIMIX_register_action_to_condition(action, smpi_global->timer_cond);
- SIMIX_cond_wait(smpi_global->timer_cond, smpi_global->timer_mutex);
- SIMIX_unregister_action_to_condition(action, smpi_global->timer_cond);
-
- SIMIX_mutex_unlock(smpi_global->timer_mutex);
-
- return duration;
+ xbt_os_timer_start(smpi_global->timer);
}
-void smpi_bench_skip() {
- smx_host_t host;
- smx_action_t action;
- double duration = smpi_global->times[0];
-
- SIMIX_mutex_lock(smpi_global->timer_mutex);
-
- host = SIMIX_host_self();
- action = SIMIX_action_execute(host, "computation", duration * SMPI_DEFAULT_SPEED);
-
- SIMIX_register_action_to_condition(action, smpi_global->timer_cond);
- SIMIX_cond_wait(smpi_global->timer_cond, smpi_global->timer_mutex);
- SIMIX_unregister_action_to_condition(action, smpi_global->timer_cond);
+double smpi_stop_timer()
+{
+ double duration;
+ xbt_os_timer_stop(smpi_global->timer);
+ duration = xbt_os_timer_elapsed(smpi_global->timer);
+ return duration;
+}
- SIMIX_mutex_unlock(smpi_global->timer_mutex);
+void smpi_bench_begin()
+{
+ smpi_start_timer();
+}
- return;
+void smpi_bench_end()
+{
+ smpi_execute(smpi_stop_timer());
}
-void smpi_do_once_1() {
- smpi_bench_end();
- SIMIX_mutex_lock(smpi_global->times_mutex);
- if (0 < smpi_global->times[0]) {
- smpi_bench_skip();
- }
- return;
+void smpi_do_once_1(const char *file, int line)
+{
+ smpi_do_once_duration_node_t curr, prev;
+ smpi_bench_end();
+ SIMIX_mutex_lock(smpi_global->do_once_mutex);
+ prev = NULL;
+ for (curr = smpi_global->do_once_duration_nodes;
+ NULL != curr && (strcmp(curr->file, file) || curr->line != line);
+ curr = curr->next) {
+ prev = curr;
+ }
+ if (NULL == curr) {
+ curr = xbt_new(s_smpi_do_once_duration_node_t, 1);
+ curr->file = xbt_strdup(file);
+ curr->line = line;
+ curr->duration = -1;
+ curr->next = NULL;
+ if (NULL == prev) {
+ smpi_global->do_once_duration_nodes = curr;
+ } else {
+ prev->next = curr;
+ }
+ }
+ smpi_global->do_once_duration = &curr->duration;
}
-int smpi_do_once_2() {
- int retval = 1;
- if (0 < smpi_global->times[0]) {
- SIMIX_mutex_unlock(smpi_global->times_mutex);
- retval = 0;
- }
- smpi_bench_begin();
- return retval;
+int smpi_do_once_2()
+{
+ double duration = *(smpi_global->do_once_duration);
+ if (0 > duration) {
+ smpi_start_timer();
+ return 1;
+ }
+ SIMIX_mutex_unlock(smpi_global->do_once_mutex);
+ smpi_execute(duration);
+ smpi_bench_begin();
+ return 0;
}
-void smpi_do_once_3() {
- smpi_global->times[0] = smpi_bench_end();
- return;
+void smpi_do_once_3()
+{
+ *(smpi_global->do_once_duration) = smpi_stop_timer();
}
