+/* Copyright (c) 2007-2009 Da 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;
-/* $Id$ */
-
-/* Copyright (c) 2007 Arnaud Legrand.
- 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. */
-
-static int _sd_init_status = 0; /* 0: beginning of time;
- 1: pre-inited (cfg_set created);
- 2: inited (running) */
-static xbt_cfg_t _sd_cfg_set = NULL;
-
-/* callback of the workstation_model variable */
-static void _sd_cfg_cb__workstation_model(const char *name, int pos)
-{
- char *val;
-
- xbt_assert0(_sd_init_status < 2,
- "Cannot change the model after the initialization");
-
- val = xbt_cfg_get_string(_sd_cfg_set, name);
- find_model_description(surf_workstation_model_description,
- surf_workstation_model_description_size,
- val);
-}
-
-/* callback of the cpu_model variable */
-static void _sd_cfg_cb__cpu_model(const char *name, int pos)
-{
- char *val;
-
- xbt_assert0(_sd_init_status < 2,
- "Cannot change the model after the initialization");
-
- val = xbt_cfg_get_string(_sd_cfg_set, name);
- find_model_description(surf_cpu_model_description,
- surf_cpu_model_description_size, val);
-}
-
-/* callback of the workstation_model variable */
-static void _sd_cfg_cb__network_model(const char *name, int pos)
-{
- char *val;
-
- xbt_assert0(_sd_init_status < 2,
- "Cannot change the model after the initialization");
-
- val = xbt_cfg_get_string(_sd_cfg_set, name);
- find_model_description(surf_network_model_description,
- surf_network_model_description_size, val);
-}
-
-/* create the config set and register what should be */
-static void sd_config_init(void)
-{
-
- if (_sd_init_status)
- return; /* Already inited, nothing to do */
-
- _sd_init_status = 1;
- _sd_cfg_set = xbt_cfg_new();
-
- xbt_cfg_register(_sd_cfg_set,
- "workstation_model", xbt_cfgelm_string, 1, 1,
- &_sd_cfg_cb__workstation_model, NULL);
-
- xbt_cfg_register(_sd_cfg_set,
- "cpu_model", xbt_cfgelm_string, 1, 1,
- &_sd_cfg_cb__cpu_model, NULL);
- xbt_cfg_register(_sd_cfg_set,
- "network_model", xbt_cfgelm_string, 1, 1,
- &_sd_cfg_cb__network_model, NULL);
-
- xbt_cfg_set_string(_sd_cfg_set, "workstation_model", "ptask_L07");
-}
-
-static void sd_config_finalize(void)
-{
-
- if (!_sd_init_status)
- return; /* Not initialized yet. Nothing to do */
-
- xbt_cfg_free(&_sd_cfg_set);
- _sd_init_status = 0;
-}
-
-static void sd_config(const char *name, va_list pa)
-{
- if (!_sd_init_status) {
- sd_config_init();
- }
- xbt_cfg_set_vargs(_sd_cfg_set, name, pa);
-}
-
-
-static void __sd_config_helper(const char *name, ...)
-{
- va_list pa;
- va_start(pa, name);
-
- sd_config(name, pa);
-
- va_end(pa);
-}
-
-static void sd_cfg_control_set(const char *control_string)
-{
- /* To split the string in commands, and the cursors */
- xbt_dynar_t set_strings;
- char *str;
- int cpt;
-
- if (!control_string)
- return;
- DEBUG1("Parse log settings '%s'", control_string);
-
- /* split the string, and remove empty entries */
- set_strings = xbt_str_split_quoted(control_string);
-
- if (xbt_dynar_length(set_strings) == 0) { /* vicious user! */
- xbt_dynar_free(&set_strings);
- return;
- }
- /* Parse each entry and either use it right now (if the category was already
- created), or store it for further use */
- xbt_dynar_foreach(set_strings, cpt, str) {
- char *control_string, *control_string_sav, *name, *value;
-
-
- control_string = control_string_sav = strdup(str);
- control_string += strspn(control_string, " ");
- name = control_string;
- control_string += strcspn(str, ":=");
- value = control_string;
- *value = 0;
- value++;
-
- xbt_assert1(strlen(name) != 0, "Invalid name for configuration: '%s'",
- name);
- xbt_assert1(strlen(value) != 0,
- "Invalid value for configuration: '%s'", value);
- INFO2("setting '%s' to '%s'", name, value);
-
- __sd_config_helper(name, value);
-
- free(control_string_sav);
- }
- xbt_dynar_free(&set_strings);
-}
-
-static void sd_cfg_init(int *argc, char **argv)
-{
- int i, j;
- char *opt;
-
- for (i = 1; i < *argc; i++) {
- if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
- opt = strchr(argv[i], '=');
- opt++;
-
- sd_cfg_control_set(opt);
- DEBUG1("Did apply '%s' as config setting", opt);
- /*remove this from argv */
-
- for (j = i + 1; j < *argc; j++) {
- argv[j - 1] = argv[j];
- }
-
- argv[j - 1] = NULL;
- (*argc)--;
- i--; /* compensate effect of next loop incrementation */
- }
- }
-}
+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) {
+void SD_init(int *argc, char **argv)
+{
s_SD_task_t task;
-
- xbt_assert0( !SD_INITIALISED() , "SD_init() already called");
+
+ 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->recyclable_route = NULL;
sd_global->watch_point_reached = 0;
- 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->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);
- sd_cfg_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.
- *
+ *
+ * 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) {
-
+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->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->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");
*
* 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;
void *surf_link = NULL;
- char *workstation_model_name;
- int workstation_id = -1;
SD_CHECK_INIT_DONE();
DEBUG0("SD_create_environment");
- sd_config_init();
- surf_timer_model_init(platform_file);
-
- workstation_model_name =
- xbt_cfg_get_string(_sd_cfg_set, "workstation_model");
-
- DEBUG1("Model : %s", workstation_model_name);
- workstation_id =
- find_model_description(surf_workstation_model_description,
- surf_workstation_model_description_size,
- workstation_model_name);
- if (!strcmp(workstation_model_name, "compound")) {
- xbt_ex_t e;
- char *network_model_name = NULL;
- char *cpu_model_name = NULL;
- int network_id = -1;
- int cpu_id = -1;
-
- TRY {
- cpu_model_name = xbt_cfg_get_string(_sd_cfg_set, "cpu_model");
- } CATCH(e) {
- if (e.category == bound_error) {
- xbt_assert0(0,
- "Set a cpu model to use with the 'compound' workstation model");
- xbt_ex_free(e);
- } else {
- RETHROW;
- }
- }
-
- TRY {
- network_model_name =
- xbt_cfg_get_string(_sd_cfg_set, "network_model");
- }
- CATCH(e) {
- if (e.category == bound_error) {
- xbt_assert0(0,
- "Set a network model to use with the 'compound' workstation model");
- xbt_ex_free(e);
- } else {
- RETHROW;
- }
- }
-
- network_id =
- find_model_description(surf_network_model_description,
- surf_network_model_description_size,
- network_model_name);
- cpu_id =
- find_model_description(surf_cpu_model_description,
- surf_cpu_model_description_size,
- cpu_model_name);
-
- surf_cpu_model_description[cpu_id].model_init(platform_file);
- surf_network_model_description[network_id].model_init(platform_file);
- }
-
- DEBUG0("Call workstation_model_init");
- surf_workstation_model_description[workstation_id].
- model_init(platform_file);
+ surf_config_models_setup(platform_file);
- _sd_init_status = 2;
+ 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());
+ 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 = sd_global->task_number + 1;
- 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_new(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_public->set(surf_get_clock()+how_long,
- NULL,NULL);
+ 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));
- if ((task->state_changed = __SD_task_try_to_run(task))) {
- 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;
total_time += elapsed_time;
/* let's see which tasks are done */
- xbt_dynar_foreach(model_list, i, model) {
- while ((action = xbt_swag_extract(model->common_public->
- states.done_action_set))) {
- task = action->data;
- 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 (!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;
- }
-
- /* 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)) {
- 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;
- }
- }
- }
+ 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);
+ }
+ }
}
/* let's see which tasks have just failed */
- while ((action = xbt_swag_extract(model->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_model->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 ((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);
}
}
- while (surf_timer_model->extension_public->get(&fun,(void*)&arg)) {
+ 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);
DEBUG0("Exiting Surf...");
surf_exit();
- }
- else {
+ } else {
WARN0("SD_exit() called, but SimDag is not running");
/* we cannot use exceptions here because xbt is not running! */
}