X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/8d0eaea75f444b5ac20edfca6d4ce04cee7307e7..fde322aea2fa9ee1dc887875f4719f8a818bb6d4:/src/simdag/sd_global.c

diff --git a/src/simdag/sd_global.c b/src/simdag/sd_global.c
index 985797bae9..7c153b4845 100644
--- a/src/simdag/sd_global.c
+++ b/src/simdag/sd_global.c
@@ -1,63 +1,197 @@
 #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_DEFAULT_SUBCATEGORY(sd_kernel, msg,
+				"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 */
 
-  CHECK_INIT_DONE();
-  surf_timer_resource_init(platform_file);
-  surf_workstation_resource_init_KCCFLN05(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);*/
 
-  /* now let's create the SG wrappers */
-  xbt_dict_foreach(workstation_set, cursor, name, workstation) {
-    
-    __SG_workstation_create(name, workstation, NULL);
+  /*surf_workstation_resource_init_KCCFLN05(platform_file);*/
+  surf_workstation_resource_init_CLM03(platform_file);
+
+  /*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;
+
+  /* create the array that will be returned */
+  const int task_number = xbt_swag_size(sd_global->scheduled_task_set) + xbt_swag_size(sd_global->running_task_set);
+  SD_task_t *changed_tasks = xbt_new0(SD_task_t, task_number + 1);
+  changed_tasks[task_number] = NULL;
+  int changed_task_number = 0;
+
+  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;
+      }
+      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;
+}
+
+void SD_test() {
+  /* temporary test to explore the workstations and the links */
+  xbt_dict_cursor_t cursor = NULL;
+  char *name = NULL;
+  SD_workstation_t workstation = NULL;
+  double power, available_power, bandwidth, latency;
+  SD_link_t link = NULL;
+
+  surf_solve();
+
+  xbt_dict_foreach(sd_global->workstations, cursor, name, workstation) {
+    power = SD_workstation_get_power(workstation);
+    available_power = SD_workstation_get_available_power(workstation);
+    printf("Workstation name: %s, power: %f Mflop/s, available power: %f%%\n", name, power, (available_power*100));
+  }
+
+  xbt_dict_foreach(sd_global->links, cursor, name, link) {
+    bandwidth = SD_link_get_current_bandwidth(link);
+    latency = SD_link_get_current_latency(link);
+    printf("Link name: %s, bandwidth: %f, latency: %f\n", name, bandwidth, latency);
+  }
+
+  /* test the route between two workstations */
+  SD_workstation_t src, dst;
+  xbt_dict_cursor_first(sd_global->workstations, &cursor);
+  xbt_dict_cursor_get_or_free(&cursor, &name, (void**) &src);
+  xbt_dict_cursor_step(cursor);
+  xbt_dict_cursor_get_or_free(&cursor, &name, (void**) &dst);
+  xbt_dict_cursor_free(&cursor);
+
+  SD_link_t *route = SD_workstation_route_get_list(src, dst);
+  int route_size = SD_workstation_route_get_size(src, dst);
+
+  printf("Route between %s and %s (%d links) : ", SD_workstation_get_name(src), SD_workstation_get_name(dst), route_size);
+  int i;
+  for (i = 0; i < route_size; i++) {
+    printf("%s ", SD_link_get_name(route[i]));
+  }
+  printf("\n");
 }
 
-/* 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() {
+  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 */
   }
 }