X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/8d0eaea75f444b5ac20edfca6d4ce04cee7307e7..d5006bee977eef019719db64b3dfd56aa485cb77:/src/simdag/sd_global.c diff --git a/src/simdag/sd_global.c b/src/simdag/sd_global.c index 985797bae9..e3bf3189c5 100644 --- a/src/simdag/sd_global.c +++ b/src/simdag/sd_global.c @@ -1,63 +1,163 @@ -#include "simdag/simdag.h" #include "private.h" -#include "xbt/asserts.h" #include "xbt/sysdep.h" +#include "xbt/dynar.h" #include "surf/surf.h" -#define CHECK_INIT_DONE() xbt_assert0(init_done, "SG_init not called yet") +XBT_LOG_NEW_CATEGORY(sd,"Logging specific to SimDag"); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_kernel,sd, + "Logging specific to SimDag (kernel)"); -SG_global_t sg_global = NULL; +SD_global_t sd_global = NULL; -static int init_done = 0; - -/* Initialises SG internal data. This function should be called before any other SG function. +/* Initialises SD internal data. This function should be called before any other SD function. */ -void SG_init(int *argc, char **argv) { - xbt_assert0(!init_done, "SG_init already called"); +void SD_init(int *argc, char **argv) { + xbt_assert0(sd_global == NULL, "SD_init already called"); - sg_global = xbt_new0(s_SG_global_t, 1); - sg_global->workstations = xbt_dict_new(); - sg_global->workstation_count = 0; + sd_global = xbt_new0(s_SD_global_t, 1); + sd_global->workstations = xbt_dict_new(); + sd_global->workstation_count = 0; + sd_global->links = xbt_dict_new(); + sd_global->watch_point_reached = 0; - surf_init(argc, argv); + 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->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)); - init_done = 1; + surf_init(argc, argv); } -/* Creates the environnement described in a xml file of a platform descriptions. +/* Creates the environnement described in a xml file of a platform description. */ -void SG_create_environment(const char *platform_file) { +void SD_create_environment(const char *platform_file) { xbt_dict_cursor_t cursor = NULL; char *name = NULL; - void *workstation = NULL; + void *surf_workstation = NULL; + void *surf_link = NULL; + + SD_CHECK_INIT_DONE(); + + surf_timer_resource_init(platform_file); /* tell Surf to create the environnement */ + + + /*printf("surf_workstation_resource = %p, workstation_set = %p\n", surf_workstation_resource, workstation_set); + printf("surf_network_resource = %p, network_link_set = %p\n", surf_network_resource, network_link_set);*/ - CHECK_INIT_DONE(); - surf_timer_resource_init(platform_file); - surf_workstation_resource_init_KCCFLN05(platform_file); /* tell Surf to create the environnement */ + /*surf_workstation_resource_init_KCCFLN05(platform_file);*/ + surf_workstation_resource_init_CLM03(platform_file); - /* now let's create the SG wrappers */ - xbt_dict_foreach(workstation_set, cursor, name, workstation) { - - __SG_workstation_create(name, workstation, NULL); + /*printf("surf_workstation_resource = %p, workstation_set = %p\n", surf_workstation_resource, workstation_set); + printf("surf_network_resource = %p, network_link_set = %p\n", surf_network_resource, network_link_set);*/ + + + /* 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) { + __SD_link_create(surf_link, NULL); + } } -/* Launches the simulation. Returns a NULL-terminated array of SG_task_t whose state has changed. +/* Launches the simulation. Returns a NULL-terminated array of SD_task_t whose state has changed. */ -SG_task_t* SG_simulate(double how_long) +SD_task_t* SD_simulate(double how_long) { /* TODO */ - return NULL; + + double total_time = 0.0; /* we stop the simulation when total_time >= how_long */ + double elapsed_time = 0.0; + SD_task_t task; + surf_action_t action; + SD_task_t *changed_tasks = NULL; + int changed_task_number = 0; + int changed_task_capacity = 16; + + /* create the array that will be returned */ + changed_tasks = xbt_new0(SD_task_t, changed_task_capacity); /* changed_task_capacity will be increased if necessary */ + changed_tasks[0] = NULL; + + surf_solve(); /* Takes traces into account. Returns 0.0 */ + + sd_global->watch_point_reached = 0; + + /* main loop */ + while (elapsed_time >= 0.0 && total_time < how_long && !sd_global->watch_point_reached) { + + /* explore the scheduled tasks */ + xbt_swag_foreach(task, sd_global->scheduled_task_set) { + INFO1("Examining task '%s'...", SD_task_get_name(task)); + task->state_changed = 0; + if (xbt_dynar_length(task->tasks_before) == 0) { + INFO1("The dependencies are satisfied. Executing task '%s'", SD_task_get_name(task)); + action = __SD_task_run(task); + surf_workstation_resource->common_public->action_set_data(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; + } + else { + INFO1("Cannot execute task '%s' now because some depencies are not satisfied.", SD_task_get_name(task)); + } + } + + elapsed_time = surf_solve(); + if (elapsed_time > 0.0) + total_time += elapsed_time; + /* INFO1("Total time: %f", total_time);*/ + + 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); + __SD_task_remove_dependencies(task); + if (!task->state_changed) { + task->state_changed = 1; + changed_tasks[changed_task_number++] = task; + } + } + + 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); + if (!task->state_changed) { + task->state_changed = 1; + changed_tasks[changed_task_number++] = task; + } + } + } + + INFO0("Simulation finished"); + + INFO1("Number of tasks whose state has changed: %d", changed_task_number); + return changed_tasks; } -/* Destroys all SG data. This function should be called when the simulation is over. +/* Destroys all SD internal data. This function should be called when the simulation is over. + * The tasks should have been destroyed first. */ -void SG_clean() { - if (init_done) { - xbt_dict_free(&sg_global->workstations); - xbt_free(sg_global); +void SD_exit(void) { + if (sd_global != NULL) { + xbt_dict_free(&sd_global->workstations); + xbt_dict_free(&sd_global->links); + xbt_free(sd_global); + + xbt_swag_free(sd_global->not_scheduled_task_set); + xbt_swag_free(sd_global->scheduled_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); + surf_exit(); - /* TODO: destroy the workstations, the links and the tasks */ } }