/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
+#include <stdio.h> /* sprintf */
#include "gras/emul.h"
#include "gras/Virtu/virtu_sg.h"
#include "gras_modinter.h"
-#include "xbt/xbt_portability.h" /* timers */
+#include "xbt/xbt_os_time.h" /* timers */
#include "xbt/dict.h"
#include "xbt/ex.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_virtu_emul,gras_virtu,"Emulation support");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_virtu_emul, gras_virtu,
+ "Emulation support");
+/*** CPU burning */
+void gras_cpu_burn(double flops) {
+ smx_action_t act;
+ smx_cond_t cond;
+ smx_mutex_t mutex;
+ if (flops>0) {
+ cond = SIMIX_cond_init();
+ mutex = SIMIX_mutex_init();
+
+ SIMIX_mutex_lock(mutex);
+ act =
+ SIMIX_action_execute(SIMIX_host_self(), "task", flops);
+
+ SIMIX_register_action_to_condition(act, cond);
+ SIMIX_cond_wait(cond, mutex);
+ SIMIX_unregister_action_to_condition(act, cond);
+
+ SIMIX_action_destroy(act);
+ SIMIX_mutex_unlock(mutex);
+
+ SIMIX_cond_destroy(cond);
+ SIMIX_mutex_destroy(mutex);
+ }
+}
/*** Timing macros ***/
static xbt_os_timer_t timer;
static int benchmarking = 0;
static xbt_dict_t benchmark_set = NULL;
-static double reference = .00523066250047108838; /* FIXME: we should benchmark host machine to set this */
+static double reference = .00000000523066250047108838; /* FIXME: we should benchmark host machine to set this; unit=s/flop */
static double duration = 0.0;
-static char* locbuf = NULL;
-static int locbufsize;
+static char *locbuf = NULL;
+static unsigned int locbufsize;
void gras_emul_init(void)
{
- if(!benchmark_set) {
+ if (!benchmark_set) {
benchmark_set = xbt_dict_new();
timer = xbt_os_timer_new();
}
}
-void gras_emul_exit(void) {
- if (locbuf) free(locbuf);
+void gras_emul_exit(void)
+{
+ if (locbuf)
+ free(locbuf);
xbt_dict_free(&benchmark_set);
xbt_os_timer_free(timer);
}
ir = xbt_dict_get_or_null(dict, key);
if (!ir) {
- ir = xbt_new0(double,1);
- xbt_dict_set(dict, key, ir, free);
+ ir = xbt_new0(double, 1);
+ xbt_dict_set(dict, key, ir, xbt_free_f);
}
*ir = value;
}
-static double get_from_dict(xbt_dict_t dict, const char *key) {
+static double get_from_dict(xbt_dict_t dict, const char *key)
+{
double *ir = xbt_dict_get(dict, key);
return *ir;
}
-int gras_bench_always_begin(const char *location,int line)
+int gras_bench_always_begin(const char *location, int line)
{
- xbt_assert0(!benchmarking,"Already benchmarking");
+ xbt_assert0(!benchmarking, "Already benchmarking");
benchmarking = 1;
if (!timer)
- xbt_os_timer_start(timer);
+ xbt_os_timer_start(timer);
return 0;
}
-int gras_bench_always_end(void)
-{
- m_task_t task = NULL;
-
- xbt_assert0(benchmarking,"Not benchmarking yet");
+int gras_bench_always_end(void) {
+ xbt_assert0(benchmarking, "Not benchmarking yet");
benchmarking = 0;
xbt_os_timer_stop(timer);
duration = xbt_os_timer_elapsed(timer);
- task = MSG_task_create("task", (duration)/reference, 0 , NULL);
- MSG_task_execute(task);
- MSG_task_destroy(task);
+
+ gras_cpu_burn(duration/reference);
+
return 0;
}
-int gras_bench_once_begin(const char *location,int line) {
+int gras_bench_once_begin(const char *location, int line)
+{
double *ir = NULL;
- xbt_assert0(!benchmarking,"Already benchmarking");
+ xbt_assert0(!benchmarking, "Already benchmarking");
benchmarking = 1;
if (!locbuf || locbufsize < strlen(location) + 64) {
- locbufsize = strlen(location) + 64;
- locbuf = xbt_realloc(locbuf,locbufsize);
+ locbufsize = strlen(location) + 64;
+ locbuf = xbt_realloc(locbuf, locbufsize);
}
- sprintf(locbuf,"%s:%d",location, line);
-
+ sprintf(locbuf, "%s:%d", location, line);
+
ir = xbt_dict_get_or_null(benchmark_set, locbuf);
- if(!ir) {
- DEBUG1("%s",locbuf);
+ if (!ir) {
+ DEBUG1("%s", locbuf);
duration = 1;
xbt_os_timer_start(timer);
return 1;
}
}
-int gras_bench_once_end(void)
-{
- m_task_t task = NULL;
-
- xbt_assert0(benchmarking,"Not benchmarking yet");
+int gras_bench_once_end(void) {
+ xbt_assert0(benchmarking, "Not benchmarking yet");
benchmarking = 0;
- if(duration>0) {
+ if (duration > 0) {
xbt_os_timer_stop(timer);
duration = xbt_os_timer_elapsed(timer);
store_in_dict(benchmark_set, locbuf, duration);
} else {
- duration = get_from_dict(benchmark_set,locbuf);
+ duration = get_from_dict(benchmark_set, locbuf);
}
- DEBUG2("Simulate the run of a task of %f sec for %s",duration,locbuf);
- task = MSG_task_create("task", (duration)/reference, 0 , NULL);
- MSG_task_execute(task);
- MSG_task_destroy(task);
+ DEBUG2("Simulate the run of a task of %f sec for %s", duration, locbuf);
+ gras_cpu_burn(duration/reference);
return 0;
}
/*** Conditional execution support ***/
-int gras_if_RL(void) {
- return 0;
+int gras_if_RL(void)
+{
+ return 0;
}
-int gras_if_SG(void) {
- return 1;
+int gras_if_SG(void)
+{
+ return 1;
}
-
-
