#include "xbt/sysdep.h"
#include "xbt/dynar.h"
#include "surf/surf.h"
+#include "xbt/ex.h"
+#include "xbt/log.h"
+#include "xbt/config.h"
XBT_LOG_NEW_CATEGORY(sd,"Logging specific to SimDag");
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_kernel,sd,
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;
+ unsigned 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 */
+ }
+ }
+}
+
/**
* \brief Initialises SD internal data
*
* \see SD_create_environment(), SD_exit()
*/
void SD_init(int *argc, char **argv) {
- xbt_assert0(sd_global == NULL, "SD_init already called");
- sd_global = xbt_new0(s_SD_global_t, 1);
+ s_SD_task_t task;
+
+ xbt_assert0( !SD_INITIALISED() , "SD_init() already called");
+
+ 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->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);
+}
+
+/**
+ * \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! */
+ }
+
}
/**
char *name = NULL;
void *surf_workstation = NULL;
void *surf_link = NULL;
+ char *workstation_model_name;
+ int workstation_id = -1;
SD_CHECK_INIT_DONE();
- surf_timer_resource_init(platform_file); /* tell Surf to create the environnement */
+ 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_workstation_resource_init_KCCFLN05(platform_file);*/
- surf_workstation_resource_init_CLM03(platform_file);
+ parse_platform_file(platform_file);
+
+ _sd_init_status = 2;
/* now let's create the SD wrappers for workstations and links */
xbt_dict_foreach(workstation_set, cursor, name, surf_workstation) {
__SD_workstation_create(surf_workstation, NULL);
}
- xbt_dict_foreach(network_link_set, cursor, name, surf_link) {
+ xbt_dict_foreach(link_set, 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());
}
/**
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;
+ int changed_task_capacity = sd_global->task_number + 1;
+ 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 = xbt_new(SD_task_t, changed_task_capacity);
changed_tasks[0] = NULL;
if (first_time) {
first_time = 0;
}
+ if(how_long>0) {
+ surf_timer_model->extension_public->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) {
INFO1("Executing task '%s'", SD_task_get_name(task));
- task->surf_action = __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);
+ 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;
}
- changed_tasks[changed_task_number] = NULL;
}
/* main loop */
while (elapsed_time >= 0.0 &&
(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);
+ xbt_dynar_foreach(model_list, iter, 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;
+ }
+ }
}
- 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);
+ /* 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;
- /* 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) {
+ 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;
}
}
}
- /* 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_public->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++;
+ iter = 0;
+ while (changed_tasks[iter] != NULL) {
+ changed_tasks[iter]->state_changed = 0;
+ iter++;
}
INFO0("Simulation finished");
* \return the current clock, in second
*/
double SD_get_clock(void) {
+ SD_CHECK_INIT_DONE();
+
return surf_get_clock();
}
* \see SD_init(), SD_task_destroy()
*/
void SD_exit(void) {
- if (sd_global != NULL) {
+ if (SD_INITIALISED()) {
DEBUG0("Destroying workstation and link dictionaries...");
xbt_dict_free(&sd_global->workstations);
xbt_dict_free(&sd_global->links);
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);
xbt_free(sd_global);
+ sd_global = NULL;
DEBUG0("Exiting Surf...");
surf_exit();
}
+ else {
+ WARN0("SD_exit() called, but SimDag is not running");
+ /* we cannot use exceptions here because xbt is not running! */
+ }
}
