+++ /dev/null
-/* sg_emul - Emulation support (simulation) */
-
-/* Copyright (c) 2005, 2006, 2007, 2009, 2010. The SimGrid Team.
- * All rights reserved. */
-
-/* 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_os_time.h" /* timers */
-#include "xbt/dict.h"
-#include "xbt/ex.h"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_virtu_emul, gras_virtu,
- "Emulation support");
-/*** CPU burning */
-void gras_cpu_burn(double flops)
-{
- smx_action_t execution;
-
- if (flops > 0){
- execution = simcall_host_execute("task", SIMIX_host_self(), flops, 1);
- simcall_host_execution_wait(execution);
- }
-}
-
-/*** Timing macros ***/
-static xbt_os_timer_t timer;
-static int benchmarking = 0;
-static xbt_dict_t benchmark_set = NULL;
-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 unsigned int locbufsize;
-
-void gras_emul_init(void)
-{
- if (!benchmark_set) {
- benchmark_set = xbt_dict_new_homogeneous(xbt_free_f);
- timer = xbt_os_timer_new();
- }
-}
-
-void gras_emul_exit(void)
-{
- free(locbuf);
- xbt_dict_free(&benchmark_set);
- xbt_os_timer_free(timer);
-}
-
-
-static void store_in_dict(xbt_dict_t dict, const char *key, double value)
-{
- double *ir;
-
- ir = xbt_dict_get_or_null(dict, key);
- if (!ir) {
- ir = xbt_new0(double, 1);
- xbt_dict_set(dict, key, ir, NULL);
- }
- *ir = value;
-}
-
-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)
-{
- xbt_assert(!benchmarking, "Already benchmarking");
- benchmarking = 1;
-
- if (!timer)
- xbt_os_timer_start(timer);
- return 0;
-}
-
-int gras_bench_always_end(void)
-{
- xbt_assert(benchmarking, "Not benchmarking yet");
- benchmarking = 0;
- xbt_os_timer_stop(timer);
- duration = xbt_os_timer_elapsed(timer);
-
- gras_cpu_burn(duration / reference);
-
- return 0;
-}
-
-int gras_bench_once_begin(const char *location, int line)
-{
- double *ir = NULL;
- xbt_assert(!benchmarking, "Already benchmarking");
- benchmarking = 1;
-
- if (!locbuf || locbufsize < strlen(location) + 64) {
- locbufsize = strlen(location) + 64;
- locbuf = xbt_realloc(locbuf, locbufsize);
- }
- sprintf(locbuf, "%s:%d", location, line);
-
- ir = xbt_dict_get_or_null(benchmark_set, locbuf);
- if (!ir) {
- XBT_DEBUG("%s", locbuf);
- duration = 1;
- xbt_os_timer_start(timer);
- return 1;
- } else {
- duration = -1.0;
- return 0;
- }
-}
-
-int gras_bench_once_end(void)
-{
- xbt_assert(benchmarking, "Not benchmarking yet");
- benchmarking = 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);
- }
- XBT_DEBUG("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_SG(void)
-{
- return 1;
-}
