+/* Copyright (c) 2006, 2007, 2008, 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 "private.h"
#include "xbt/sysdep.h"
#include "xbt/dynar.h"
#include "surf/surf.h"
+#include "xbt/ex.h"
+#include "xbt/log.h"
+#include "xbt/str.h"
+#include "xbt/config.h"
-XBT_LOG_NEW_CATEGORY(sd,"Logging specific to SimDag");
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_kernel,sd,
- "Logging specific to SimDag (kernel)");
+XBT_LOG_NEW_CATEGORY(sd, "Logging specific to SimDag");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_kernel, sd,
+ "Logging specific to SimDag (kernel)");
SD_global_t sd_global = NULL;
+XBT_LOG_EXTERNAL_CATEGORY(sd_kernel);
+XBT_LOG_EXTERNAL_CATEGORY(sd_task);
+XBT_LOG_EXTERNAL_CATEGORY(sd_workstation);
+
/**
* \brief Initialises SD internal data
*
* \param argv argument list
* \see SD_create_environment(), SD_exit()
*/
-void SD_init(int *argc, char **argv) {
- if (SD_INITIALISED()) {
- xbt_assert0(0, "SD_init() already called");
- }
+void SD_init(int *argc, char **argv)
+{
- sd_global = xbt_new0(s_SD_global_t, 1);
+ s_SD_task_t task;
+
+ xbt_assert0(!SD_INITIALISED(), "SD_init() already called");
+
+ /* Connect our log channels: that must be done manually under windows */
+ XBT_LOG_CONNECT(sd_kernel, sd);
+ XBT_LOG_CONNECT(sd_task, sd);
+ XBT_LOG_CONNECT(sd_workstation, sd);
+
+
+ sd_global = xbt_new(s_SD_global_t, 1);
sd_global->workstations = xbt_dict_new();
sd_global->workstation_count = 0;
sd_global->workstation_list = NULL;
sd_global->links = xbt_dict_new();
sd_global->link_count = 0;
sd_global->link_list = NULL;
+ sd_global->recyclable_route = NULL;
sd_global->watch_point_reached = 0;
- s_SD_task_t task;
- sd_global->not_scheduled_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup));
- sd_global->scheduled_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup));
- sd_global->ready_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup));
- sd_global->running_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup));
- sd_global->done_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup));
- sd_global->failed_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->not_scheduled_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->scheduled_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->ready_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->in_fifo_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->running_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->done_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->failed_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->task_number = 0;
surf_init(argc, argv);
+ xbt_cfg_set_string(_surf_cfg_set, "workstation/model", "ptask_L07");
+}
+
+/**
+ * \brief Reinits the application part of the simulation (experimental feature)
+ *
+ * This function allows you to run several simulations on the same platform
+ * by resetting the part describing the application.
+ *
+ * @warning: this function is still experimental and not perfect. For example,
+ * the simulation clock (and traces usage) is not reset. So, do not use it if
+ * you use traces in your simulation, and do not use absolute timing after using it.
+ * That being said, this function is still precious if you want to compare a bunch of
+ * heuristics on the same platforms.
+ */
+void SD_application_reinit(void)
+{
+
+ s_SD_task_t task;
+
+ if (SD_INITIALISED()) {
+ DEBUG0("Recreating the swags...");
+ xbt_swag_free(sd_global->not_scheduled_task_set);
+ xbt_swag_free(sd_global->scheduled_task_set);
+ xbt_swag_free(sd_global->ready_task_set);
+ xbt_swag_free(sd_global->in_fifo_task_set);
+ xbt_swag_free(sd_global->running_task_set);
+ xbt_swag_free(sd_global->done_task_set);
+ xbt_swag_free(sd_global->failed_task_set);
+
+ sd_global->not_scheduled_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->scheduled_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->ready_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->in_fifo_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->running_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->done_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->failed_task_set =
+ xbt_swag_new(xbt_swag_offset(task, state_hookup));
+ sd_global->task_number = 0;
+ } else {
+ WARN0("SD_application_reinit called before initialization of SimDag");
+ /* we cannot use exceptions here because xbt is not running! */
+ }
+
}
/**
*
* The XML file follows this DTD:
*
- * \include surfxml.dtd
+ * \include simgrid.dtd
*
- * Here is a small example of such a platform:
+ * Here is a small example of such a platform:
*
* \include small_platform.xml
*/
-void SD_create_environment(const char *platform_file) {
+void SD_create_environment(const char *platform_file)
+{
xbt_dict_cursor_t cursor = NULL;
char *name = NULL;
void *surf_workstation = NULL;
DEBUG0("SD_create_environment");
- surf_timer_resource_init(platform_file); /* tell Surf to create the environnement */
+ surf_config_models_setup(platform_file);
- surf_workstation_resource_init_KCCFLN05(platform_file);
-/* surf_workstation_resource_init_CLM03(platform_file); */
+ parse_platform_file(platform_file);
/* now let's create the SD wrappers for workstations and links */
- xbt_dict_foreach(workstation_set, cursor, name, surf_workstation) {
+ xbt_dict_foreach(surf_model_resource_set(surf_workstation_model), cursor,
+ name, surf_workstation) {
__SD_workstation_create(surf_workstation, NULL);
}
- xbt_dict_foreach(network_link_set, cursor, name, surf_link) {
+ xbt_dict_foreach(surf_model_resource_set(surf_network_model), cursor, name, surf_link) {
__SD_link_create(surf_link, NULL);
}
+
+ DEBUG2("Workstation number: %d, link number: %d",
+ SD_workstation_get_number(), SD_link_get_number());
}
/**
* The simulation will be stopped when its time reaches \a how_long,
* when a watch point is reached, or when no more task can be executed.
* Then you can call SD_simulate() again.
- *
+ *
* \param how_long maximum duration of the simulation (a negative value means no time limit)
* \return a NULL-terminated array of \ref SD_task_t whose state has changed.
* \see SD_task_schedule(), SD_task_watch()
*/
-SD_task_t* SD_simulate(double how_long)
+SD_task_t *SD_simulate(double how_long)
{
- double total_time = 0.0; /* we stop the simulation when total_time >= how_long */
+ double total_time = 0.0; /* we stop the simulation when total_time >= how_long */
double elapsed_time = 0.0;
- SD_task_t task, dst;
+ SD_task_t task, task_safe, dst;
SD_dependency_t dependency;
surf_action_t action;
- SD_task_t *changed_tasks = NULL;
- int changed_task_number = 0;
- int changed_task_capacity = 16; /* will be increased if necessary */
- int i;
+ SD_task_t *res = NULL;
+ xbt_dynar_t changed_tasks = xbt_dynar_new(sizeof(SD_task_t), NULL);
+ unsigned int iter;
static int first_time = 1;
SD_CHECK_INIT_DONE();
INFO0("Starting simulation...");
- /* create the array that will be returned */
- changed_tasks = xbt_new0(SD_task_t, changed_task_capacity);
- changed_tasks[0] = NULL;
-
if (first_time) {
- surf_solve(); /* Takes traces into account. Returns 0.0 */
+ surf_presolve(); /* Takes traces into account */
first_time = 0;
}
+ if (how_long > 0) {
+ surf_timer_model->extension.timer.set(surf_get_clock() + how_long,
+ NULL, NULL);
+ }
sd_global->watch_point_reached = 0;
/* explore the ready tasks */
- xbt_swag_foreach(task, sd_global->ready_task_set) {
+ xbt_swag_foreach_safe(task, task_safe, sd_global->ready_task_set) {
INFO1("Executing task '%s'", SD_task_get_name(task));
- __SD_task_run(task);
- surf_workstation_resource->common_public->action_set_data(task->surf_action, task);
- task->state_changed = 1;
-
- changed_tasks[changed_task_number++] = task; /* replace NULL by the task */
- if (changed_task_number == changed_task_capacity) {
- changed_task_capacity *= 2;
- changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
- }
- changed_tasks[changed_task_number] = NULL;
+ if (__SD_task_try_to_run(task) && !xbt_dynar_member(changed_tasks, &task))
+ xbt_dynar_push(changed_tasks, &task);
}
/* main loop */
elapsed_time = 0.0;
while (elapsed_time >= 0.0 &&
- (how_long < 0.0 || total_time < how_long) &&
- !sd_global->watch_point_reached) {
+ (how_long < 0.0 || total_time < how_long) &&
+ !sd_global->watch_point_reached) {
+ surf_model_t model = NULL;
+ /* dumb variables */
+ void *fun = NULL;
+ void *arg = NULL;
+
DEBUG1("Total time: %f", total_time);
total_time += elapsed_time;
/* let's see which tasks are done */
- while ((action = xbt_swag_extract(surf_workstation_resource->common_public->states.done_action_set))) {
- task = action->data;
- INFO1("Task '%s' done", SD_task_get_name(task));
- __SD_task_set_state(task, SD_DONE);
- surf_workstation_resource->common_public->action_free(action);
- task->surf_action = NULL;
-
- /* the state has changed */
- if (!task->state_changed) {
- task->state_changed = 1;
- changed_tasks[changed_task_number++] = task;
- if (changed_task_number == changed_task_capacity) {
- changed_task_capacity *= 2;
- changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
- }
- changed_tasks[changed_task_number] = NULL;
+ xbt_dynar_foreach(model_list, iter, model) {
+ while ((action = xbt_swag_extract(model->states.done_action_set))) {
+ task = action->data;
+ task->start_time = surf_workstation_model->action_get_start_time(task->surf_action);
+ task->finish_time = surf_get_clock();
+ INFO1("Task '%s' done", SD_task_get_name(task));
+ DEBUG0("Calling __SD_task_just_done");
+ __SD_task_just_done(task);
+ DEBUG1("__SD_task_just_done called on task '%s'",
+ SD_task_get_name(task));
+
+ /* the state has changed */
+ if (!xbt_dynar_member(changed_tasks, &task))
+ xbt_dynar_push(changed_tasks, &task);
+
+ /* remove the dependencies after this task */
+ while (xbt_dynar_length(task->tasks_after) > 0) {
+ xbt_dynar_get_cpy(task->tasks_after, 0, &dependency);
+ dst = dependency->dst;
+ SD_task_dependency_remove(task, dst);
+
+ /* is dst ready now? */
+ if (__SD_task_is_ready(dst) && !sd_global->watch_point_reached) {
+ INFO1("Executing task '%s'", SD_task_get_name(dst));
+ if (__SD_task_try_to_run(dst) &&
+ !xbt_dynar_member(changed_tasks, &task))
+ xbt_dynar_push(changed_tasks, &task);
+ }
+ }
}
- /* remove the dependencies after this task */
- while (xbt_dynar_length(task->tasks_after) > 0) {
- xbt_dynar_get_cpy(task->tasks_after, 0, &dependency);
- dst = dependency->dst;
- SD_task_dependency_remove(task, dst);
-
- /* is dst ready now? */
- if (__SD_task_is_ready(dst) && !sd_global->watch_point_reached) {
- INFO1("Executing task '%s'", SD_task_get_name(dst));
- dst->surf_action = __SD_task_run(dst);
- surf_workstation_resource->common_public->action_set_data(dst->surf_action, dst);
- dst->state_changed = 1;
-
- changed_tasks[changed_task_number++] = dst;
- if (changed_task_number == changed_task_capacity) {
- changed_task_capacity *= 2;
- changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
- }
- changed_tasks[changed_task_number] = NULL;
- }
+ /* let's see which tasks have just failed */
+ while ((action = xbt_swag_extract(model->states.failed_action_set))) {
+ task = action->data;
+ task->start_time = surf_workstation_model->action_get_start_time(task->surf_action);
+ task->finish_time = surf_get_clock();
+ INFO1("Task '%s' failed", SD_task_get_name(task));
+ __SD_task_set_state(task, SD_FAILED);
+ surf_workstation_model->action_unref(action);
+ task->surf_action = NULL;
+
+ if (!xbt_dynar_member(changed_tasks, &task))
+ xbt_dynar_push(changed_tasks, &task);
}
}
- /* let's see which tasks have just failed */
- while ((action = xbt_swag_extract(surf_workstation_resource->common_public->states.failed_action_set))) {
- task = action->data;
- INFO1("Task '%s' failed", SD_task_get_name(task));
- __SD_task_set_state(task, SD_FAILED);
- surf_workstation_resource->common_public->action_free(action);
- task->surf_action = NULL;
-
- if (!task->state_changed) {
- task->state_changed = 1;
- changed_tasks[changed_task_number++] = task;
- if (changed_task_number == changed_task_capacity) {
- changed_task_capacity *= 2;
- changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
- }
- changed_tasks[changed_task_number] = NULL;
- }
+ while (surf_timer_model->extension.timer.get(&fun, (void *) &arg)) {
}
}
- /* we must reset every task->state_changed */
- i = 0;
- while (changed_tasks[i] != NULL) {
- changed_tasks[i]->state_changed = 0;
- i++;
+ res = xbt_new0(SD_task_t, (xbt_dynar_length(changed_tasks) + 1));
+
+ xbt_dynar_foreach(changed_tasks, iter, task) {
+ res[iter] = task;
}
+ xbt_dynar_free(&changed_tasks);
INFO0("Simulation finished");
- DEBUG3("elapsed_time = %f, total_time = %f, watch_point_reached = %d", elapsed_time, total_time, sd_global->watch_point_reached);
+ DEBUG3("elapsed_time = %f, total_time = %f, watch_point_reached = %d",
+ elapsed_time, total_time, sd_global->watch_point_reached);
DEBUG1("current time = %f", surf_get_clock());
- return changed_tasks;
+ return res;
}
/**
*
* \return the current clock, in second
*/
-double SD_get_clock(void) {
+double SD_get_clock(void)
+{
SD_CHECK_INIT_DONE();
return surf_get_clock();
*
* \see SD_init(), SD_task_destroy()
*/
-void SD_exit(void) {
+void SD_exit(void)
+{
if (SD_INITIALISED()) {
DEBUG0("Destroying workstation and link dictionaries...");
xbt_dict_free(&sd_global->workstations);
if (sd_global->link_list != NULL)
xbt_free(sd_global->link_list);
+ if (sd_global->recyclable_route != NULL)
+ xbt_free(sd_global->recyclable_route);
+
DEBUG0("Destroying the swags...");
xbt_swag_free(sd_global->not_scheduled_task_set);
xbt_swag_free(sd_global->scheduled_task_set);
xbt_swag_free(sd_global->ready_task_set);
+ xbt_swag_free(sd_global->in_fifo_task_set);
xbt_swag_free(sd_global->running_task_set);
xbt_swag_free(sd_global->done_task_set);
xbt_swag_free(sd_global->failed_task_set);
DEBUG0("Exiting Surf...");
surf_exit();
- }
- else {
- fprintf(stderr, "Warning: SD_exit() called while SimDag was not running\n");
+ } else {
+ WARN0("SD_exit() called, but SimDag is not running");
/* we cannot use exceptions here because xbt is not running! */
}
}
