X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/41f6e93622ccf2e2c09dd0fd75ef6ad4f458e80b..d7fe15f62820f53f48d0f894212373fac36e449b:/src/surf/surf.c

diff --git a/src/surf/surf.c b/src/surf/surf.c
index 60cea9caa3..166c13403d 100644
--- a/src/surf/surf.c
+++ b/src/surf/surf.c
@@ -1,115 +1,547 @@
-/* Authors: Arnaud Legrand                                                  */
+/* 	$Id$	 */
+
+/* Copyright (c) 2004 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. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include <ctype.h>
 
 #include "surf_private.h"
+#include "xbt/module.h"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
+				"Logging specific to SURF (kernel)");
+
+int use_sdp_solver = 0;
+int use_lagrange_solver = 0;
+
+/* Additional declarations for Windows potability. */
+
+#ifndef MAX_DRIVE
+#define MAX_DRIVE 26
+#endif
+
+#ifdef _WIN32
+#include <windows.h>
+static const char *disk_drives_letter_table[MAX_DRIVE] = {
+  "A:\\",
+  "B:\\",
+  "C:\\",
+  "D:\\",
+  "E:\\",
+  "F:\\",
+  "G:\\",
+  "H:\\",
+  "I:\\",
+  "J:\\",
+  "K:\\",
+  "L:\\",
+  "M:\\",
+  "N:\\",
+  "O:\\",
+  "P:\\",
+  "Q:\\",
+  "R:\\",
+  "S:\\",
+  "T:\\",
+  "U:\\",
+  "V:\\",
+  "W:\\",
+  "X:\\",
+  "Y:\\",
+  "Z:\\"
+};
+#endif				/* #ifdef _WIN32 */
 
-static xbt_heap_float_t NOW=0;
+/*
+ * Returns the initial path. On Windows the initial path is
+ * the current directory for the current process in the other
+ * case the function returns "./" that represents the current
+ * directory on Unix/Linux platforms.
+ */
+
+const char *__surf_get_initial_path(void)
+{
+
+#ifdef _WIN32
+  unsigned i;
+  char current_directory[MAX_PATH + 1] = { 0 };
+  unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
+  char root[4] = { 0 };
+
+  if (!len)
+    return NULL;
+
+  strncpy(root, current_directory, 3);
+
+  for (i = 0; i < MAX_DRIVE; i++) {
+    if (toupper(root[0]) == disk_drives_letter_table[i][0])
+      return disk_drives_letter_table[i];
+  }
 
-xbt_dynar_t resource_list = NULL;
+  return NULL;
+#else
+  return "./";
+#endif
+}
+
+/* The __surf_is_absolute_file_path() returns 1 if
+ * file_path is a absolute file path, in the other
+ * case the function returns 0.
+ */
+int __surf_is_absolute_file_path(const char *file_path)
+{
+#ifdef _WIN32
+  WIN32_FIND_DATA wfd = { 0 };
+  HANDLE hFile = FindFirstFile(file_path, &wfd);
+
+  if (INVALID_HANDLE_VALUE == hFile)
+    return 0;
+
+  FindClose(hFile);
+  return 1;
+#else
+  return (file_path[0] == '/');
+#endif
+}
+
+typedef struct surf_model_object {
+  surf_model_t model;
+} s_surf_model_object_t, *surf_model_object_t;
+
+static double NOW = 0;
+
+xbt_dynar_t model_list = NULL;
 tmgr_history_t history = NULL;
 lmm_system_t maxmin_system = NULL;
+xbt_dynar_t surf_path = NULL;
+const char *surf_action_state_names[6] = {
+  "SURF_ACTION_READY",
+  "SURF_ACTION_RUNNING",
+  "SURF_ACTION_FAILED",
+  "SURF_ACTION_DONE",
+  "SURF_ACTION_TO_FREE",
+  "SURF_ACTION_NOT_IN_THE_SYSTEM"
+};
+
+s_surf_model_description_t surf_network_model_description[surf_network_model_description_size] = {
+  {"Constant", NULL, surf_network_model_init_Constant},
+  {"CM02", NULL, surf_network_model_init_CM02},
+#ifdef HAVE_GTNETS
+  {"GTNets", NULL, surf_network_model_init_GTNETS},
+#endif
+#ifdef HAVE_SDP
+  {"SDP", NULL, surf_network_model_init_SDP},
+#endif
+  {"Reno", NULL, surf_network_model_init_Reno},
+  {"Vegas", NULL, surf_network_model_init_Vegas}
+};
+
+s_surf_model_description_t surf_cpu_model_description[surf_cpu_model_description_size] = {
+  {"Cas01", NULL, surf_cpu_model_init_Cas01},
+};
+
+s_surf_model_description_t surf_workstation_model_description[surf_workstation_model_description_size] = {
+  {"CLM03", NULL, surf_workstation_model_init_CLM03, create_workstations},
+  {"compound", NULL, surf_workstation_model_init_compound, create_workstations},
+  {"ptask_L07", NULL, surf_workstation_model_init_ptask_L07, NULL}
+};
+
+void update_model_description(s_surf_model_description_t * table,
+				 int table_size,
+				 const char *name,
+				 surf_model_t model)
+{
+  int i = find_model_description(table, table_size, name);
+  table[i].model = model;
+}
+
+int find_model_description(s_surf_model_description_t * table,
+			      int table_size, const char *name)
+{
+  int i;
+  char *name_list = NULL;
+
+  for (i = 0; i < table_size; i++)
+    if (!strcmp(name, table[i].name)) {
+      return i;
+    }
+  name_list = strdup(table[0].name);
+  for (i = 1; i < table_size; i++) {
+    name_list =
+	xbt_realloc(name_list,
+		    strlen(name_list) + strlen(table[i].name) + 2);
+    strcat(name_list, ", ");
+    strcat(name_list, table[i].name);
+  }
+  xbt_assert2(0, "Model '%s' is invalid! Valid models are: %s.", name,
+	      name_list);
+}
+
+double generic_maxmin_share_resources(xbt_swag_t running_actions,
+				      size_t offset,
+				      lmm_system_t sys,
+				      void (*solve) (lmm_system_t))
+{
+  surf_action_t action = NULL;
+  double min = -1;
+  double value = -1;
+#define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
+
+  xbt_assert0(solve, "Give me a real solver function!");
+  solve(sys);
+
+  xbt_swag_foreach(action, running_actions) {
+    value = lmm_variable_getvalue(VARIABLE(action));
+    if ((value > 0) || (action->max_duration >= 0))
+      break;
+  }
+
+  if (!action)
+    return -1.0;
+
+  if (value > 0) {
+    if(action->remains>0) 
+      min = action->remains / value;
+    else 
+      min = 0.0;
+    if ((action->max_duration >= 0) && (action->max_duration < min))
+      min = action->max_duration;
+  } else
+    min = action->max_duration;
+
+  DEBUG5("Found action (%p: duration = %f, remains = %f, value = %f) ! %f",
+	 action, action->max_duration, action->remains, value, min);
+
+  for (action = xbt_swag_getNext(action, running_actions->offset);
+       action;
+       action = xbt_swag_getNext(action, running_actions->offset)) {
+    value = lmm_variable_getvalue(VARIABLE(action));
+    if (value > 0) {
+      if(action->remains>0) 
+	value = action->remains / value;
+      else 
+	value = 0.0;
+      if (value < min) {
+	min = value;
+	DEBUG2("Updating min (value) with %p: %f", action, min);
+      }
+    }
+    if ((action->max_duration >= 0) && (action->max_duration < min)) {
+      min = action->max_duration;
+      DEBUG2("Updating min (duration) with %p: %f", action, min);
+    }
+  }
+  DEBUG1("min value : %f", min);
+
+#undef VARIABLE
+  return min;
+}
 
 e_surf_action_state_t surf_action_get_state(surf_action_t action)
 {
-  surf_action_state_t action_state = &(action->resource_type->common_public->states); 
-  
-  if(action->state_set == action_state->ready_action_set)
+  surf_action_state_t action_state =
+      &(action->model_type->common_public->states);
+
+  if (action->state_set == action_state->ready_action_set)
     return SURF_ACTION_READY;
-  if(action->state_set == action_state->running_action_set)
+  if (action->state_set == action_state->running_action_set)
     return SURF_ACTION_RUNNING;
-  if(action->state_set == action_state->failed_action_set)
+  if (action->state_set == action_state->failed_action_set)
     return SURF_ACTION_FAILED;
-  if(action->state_set == action_state->done_action_set)
+  if (action->state_set == action_state->done_action_set)
     return SURF_ACTION_DONE;
   return SURF_ACTION_NOT_IN_THE_SYSTEM;
 }
 
-void surf_action_free(surf_action_t * action)
+double surf_action_get_start_time(surf_action_t action)
 {
-  (*action)->resource_type->common_public->action_cancel(*action);
-  xbt_free(*action);
-  *action=NULL;
+  return action->start;
 }
 
-void surf_action_change_state(surf_action_t action, e_surf_action_state_t state)
+double surf_action_get_finish_time(surf_action_t action)
 {
-  surf_action_state_t action_state = &(action->resource_type->common_public->states); 
+  return action->finish;
+}
 
+void surf_action_free(surf_action_t * action)
+{
+  (*action)->model_type->common_public->action_cancel(*action);
+  free(*action);
+  *action = NULL;
+}
+
+void surf_action_change_state(surf_action_t action,
+			      e_surf_action_state_t state)
+{
+  surf_action_state_t action_state =
+      &(action->model_type->common_public->states);
+  XBT_IN2("(%p,%s)", action, surf_action_state_names[state]);
   xbt_swag_remove(action, action->state_set);
 
-  if(state == SURF_ACTION_READY) 
+  if (state == SURF_ACTION_READY)
     action->state_set = action_state->ready_action_set;
-  else if(state == SURF_ACTION_RUNNING)
+  else if (state == SURF_ACTION_RUNNING)
     action->state_set = action_state->running_action_set;
-  else if(state == SURF_ACTION_FAILED)
+  else if (state == SURF_ACTION_FAILED)
     action->state_set = action_state->failed_action_set;
-  else if(state == SURF_ACTION_DONE)
+  else if (state == SURF_ACTION_DONE)
     action->state_set = action_state->done_action_set;
-  else action->state_set = NULL;
+  else
+    action->state_set = NULL;
+
+  if (action->state_set)
+    xbt_swag_insert(action, action->state_set);
+  XBT_OUT;
+}
+
+void surf_action_set_data(surf_action_t action, void *data)
+{
+  action->data = data;
+}
+
+XBT_LOG_EXTERNAL_CATEGORY(surf_cpu);
+XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
+XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange);
+XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange_dichotomy);
+XBT_LOG_EXTERNAL_CATEGORY(surf_maxmin);
+XBT_LOG_EXTERNAL_CATEGORY(surf_network);
+XBT_LOG_EXTERNAL_CATEGORY(surf_parse);
+XBT_LOG_EXTERNAL_CATEGORY(surf_timer);
+XBT_LOG_EXTERNAL_CATEGORY(surf_workstation);
+
+#ifdef HAVE_SDP
+  XBT_LOG_EXTERNAL_CATEGORY(surf_sdp_out);
+  XBT_LOG_EXTERNAL_CATEGORY(surf_sdp);
+#endif
+#ifdef HAVE_GTNETS
+  XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets);
+#endif
+
+void surf_init(int *argc, char **argv)
+{
+  int i, j;
+  char *opt;
+
+  const char *initial_path;
+
+  /* Connect our log channels: that must be done manually under windows */
+  XBT_LOG_CONNECT(surf_cpu, surf);
+  XBT_LOG_CONNECT(surf_kernel, surf);
+  XBT_LOG_CONNECT(surf_lagrange, surf);
+    XBT_LOG_CONNECT(surf_lagrange_dichotomy, surf_lagrange);
+  XBT_LOG_CONNECT(surf_maxmin, surf);
+  XBT_LOG_CONNECT(surf_network, surf);
+  XBT_LOG_CONNECT(surf_parse, surf);
+  XBT_LOG_CONNECT(surf_timer, surf);
+  XBT_LOG_CONNECT(surf_workstation, surf);
+
+#ifdef HAVE_SDP
+  XBT_LOG_CONNECT(surf_sdp_out, surf);
+  XBT_LOG_CONNECT(surf_sdp, surf);
+#endif
+#ifdef HAVE_GTNETS
+  XBT_LOG_CONNECT(surf_network_gtnets, surf);
+#endif
+   
+  xbt_init(argc, argv);
+  if (!surf_path) {
+
+    /* retrieves the current directory of the current process */
+    initial_path = __surf_get_initial_path();
+
+    xbt_assert0((initial_path),
+		"__surf_get_initial_path() failed! Can't resolves current Windows directory");
+
+    surf_path = xbt_dynar_new(sizeof(char *), NULL);
+    xbt_dynar_push(surf_path, &initial_path);
+
+    for (i = 1; i < *argc; i++) {
+      if (!strncmp(argv[i], "--surf-path=", strlen("--surf-path="))) {
+	opt = strchr(argv[i], '=');
+	opt++;
+	xbt_dynar_push(surf_path, &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 */
+      }
+    }
+  }
+  if (!model_list)
+    model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL);
+  if (!history)
+    history = tmgr_history_new();
+}
+
+static char *path_name = NULL;
+FILE *surf_fopen(const char *name, const char *mode)
+{
+  unsigned int iter;
+  char *path = NULL;
+  FILE *file = NULL;
+  unsigned int path_name_len = 0;	/* don't count '\0' */
+
+  xbt_assert0(name, "Need a non-NULL file name");
+
+  xbt_assert0(surf_path,
+	      "surf_init has to be called before using surf_fopen");
+
+  if (__surf_is_absolute_file_path(name)) {	/* don't mess with absolute file names */
+    return fopen(name, mode);
+
+  } else {			/* search relative files in the path */
+
+    if (!path_name) {
+      path_name_len = strlen(name);
+      path_name = xbt_new0(char, path_name_len + 1);
+    }
 
-  if(action->state_set) xbt_swag_insert(action, action->state_set);
+    xbt_dynar_foreach(surf_path, iter, path) {
+      if (path_name_len < strlen(path) + strlen(name) + 1) {
+	path_name_len = strlen(path) + strlen(name) + 1;	/* plus '/' */
+	path_name = xbt_realloc(path_name, path_name_len + 1);
+      }
+      #ifdef WIN32
+      sprintf(path_name, "%s\\%s", path, name);
+      #else
+      sprintf(path_name, "%s/%s", path, name);
+      #endif
+      file = fopen(path_name, mode);
+      if (file)
+	return file;
+    }
+  }
+  return file;
 }
 
-void surf_init(void)
+void surf_exit(void)
 {
-  if(!resource_list) resource_list = xbt_dynar_new(sizeof(surf_resource_private_t), NULL);
-  if(!history) history = tmgr_history_new();
-  if(!maxmin_system) maxmin_system = lmm_system_new();
+  unsigned int iter;
+  surf_model_t model = NULL;
+
+  xbt_dynar_foreach(model_list, iter, model) {
+    model->common_private->finalize();
+  }
+
+  if (maxmin_system) {
+    lmm_system_free(maxmin_system);
+    maxmin_system = NULL;
+  }
+  if (history) {
+    tmgr_history_free(history);
+    history = NULL;
+  }
+  if (model_list)
+    xbt_dynar_free(&model_list);
+
+  if (surf_path)
+    xbt_dynar_free(&surf_path);
+
+  tmgr_finalize();
+  surf_parse_lex_destroy();
+  if (path_name) {
+    free(path_name);
+    path_name = NULL;
+  }
+  surf_parse_free_callbacks();
+  xbt_dict_free(&route_table);
+  NOW=0; /* Just in case the user plans to restart the simulation afterward */
+  xbt_exit();
 }
 
-xbt_heap_float_t surf_solve(void)
+double surf_solve(void)
 {
-  xbt_heap_float_t min = -1.0;
-  xbt_heap_float_t next_event_date = -1.0;
-  xbt_heap_float_t resource_next_action_end = -1.0;
-  xbt_maxmin_float_t value = -1.0;
-  surf_resource_object_t resource_obj = NULL;
-  surf_resource_t resource = NULL;
+  static int first_run = 1;
+
+  double min = -1.0;
+  double next_event_date = -1.0;
+  double model_next_action_end = -1.0;
+  double value = -1.0;
+  surf_model_object_t model_obj = NULL;
+  surf_model_t model = NULL;
   tmgr_trace_event_t event = NULL;
-  int i;
+  unsigned int iter;
 
-  while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
-    if(next_event_date > NOW) break;
-    while ((event = tmgr_history_get_next_event_leq(history, next_event_date,
-					   &value, (void **) &resource_obj))) {
-      resource_obj->resource->common_private->update_resource_state(resource_obj,
-								    event, value);
+  if (first_run) {
+    DEBUG0
+	("First Run! Let's \"purge\" events and put models in the right state");
+    while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
+      if (next_event_date > NOW)
+	break;
+      while ((event =
+	      tmgr_history_get_next_event_leq(history, next_event_date,
+					      &value,
+					      (void **) &model_obj))) {
+	model_obj->model->common_private->
+	    update_resource_state(model_obj, event, value);
+      }
+    }
+    xbt_dynar_foreach(model_list, iter, model) {
+      model->common_private->update_actions_state(NOW, 0.0);
     }
+    first_run = 0;
+    return 0.0;
   }
 
   min = -1.0;
 
-  xbt_dynar_foreach (resource_list,i,resource) {
-    resource_next_action_end = resource->common_private->share_resources(NOW);
-    if((min<0) || (resource_next_action_end<min)) 
-      min = resource_next_action_end;
+  DEBUG0("Looking for next action end");
+  xbt_dynar_foreach(model_list, iter, model) {
+    DEBUG1("Running for Resource [%s]", model->common_public->name);
+    model_next_action_end =
+	model->common_private->share_resources(NOW);
+    DEBUG2("Resource [%s] : next action end = %f",
+	   model->common_public->name, model_next_action_end);
+    if (((min < 0.0) || (model_next_action_end < min))
+	&& (model_next_action_end >= 0.0))
+      min = model_next_action_end;
   }
+  DEBUG1("Next action end : %f", min);
+
+  if (min < 0.0)
+    return -1.0;
 
+  DEBUG0("Looking for next event");
   while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
-    if(next_event_date > NOW+min) break;
-    while ((event=tmgr_history_get_next_event_leq(history, next_event_date,
-						  &value, (void **) &resource_obj))) {
-      if(resource_obj->resource->common_public->resource_used(resource_obj)) {
-	min = next_event_date-NOW;
-/* 	update_state of resource_obj according to new value */
+    DEBUG1("Next event : %f", next_event_date);
+    if (next_event_date > NOW + min)
+      break;
+    DEBUG0("Updating models");
+    while ((event =
+	    tmgr_history_get_next_event_leq(history, next_event_date,
+					    &value,
+					    (void **) &model_obj))) {
+      if (model_obj->model->common_private->
+	  resource_used(model_obj)) {
+	min = next_event_date - NOW;
+	DEBUG1
+	    ("This event will modify model state. Next event set to %f",
+	     min);
       }
-      resource_obj->resource->common_private->update_resource_state(resource_obj,
-								    event, value);
+      /* update state of model_obj according to new value. Does not touch lmm.
+         It will be modified if needed when updating actions */
+      model_obj->model->common_private->
+	  update_resource_state(model_obj, event, value);
     }
   }
 
-  xbt_dynar_foreach (resource_list,i,resource) {
-    resource->common_private->update_actions_state(NOW, min);
-  }
+  DEBUG1("Duration set to %f", min);
+
+  NOW = NOW + min;
 
-  NOW=NOW+min;
+  xbt_dynar_foreach(model_list, iter, model) {
+    model->common_private->update_actions_state(NOW, min);
+  }
 
   return min;
 }
 
-xbt_heap_float_t surf_get_clock(void)
+double surf_get_clock(void)
 {
   return NOW;
 }