src/surf/workstation.c

   1 /*      $Id$     */
   2
   3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved.                  */
   4
   5 /* This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the license (GNU LGPL) which comes with this package. */
   7
   8 #include "xbt/ex.h"
   9 #include "xbt/dict.h"
  10 #include "portable.h"
  11 #include "workstation_private.h"
  12 #include "cpu_private.h"
  13 #include "network_common.h"
  14
  15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  16                                 "Logging specific to the SURF workstation module");
  17
  18 surf_model_t surf_workstation_model = NULL;
  19
  20 static workstation_CLM03_t workstation_new(const char *name,
  21                                            void *cpu, int id)
  22 {
  23   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  24
  25   workstation->generic_resource.model = surf_workstation_model;
  26   workstation->generic_resource.name = xbt_strdup(name);
  27   workstation->cpu = cpu;
  28   workstation->id = id;
  29
  30   xbt_dict_set(surf_model_resource_set(surf_workstation_model), name,
  31                workstation, surf_resource_free);
  32
  33   return workstation;
  34 }
  35
  36 void create_workstations(void)
  37 {
  38   xbt_dict_cursor_t cursor = NULL;
  39   char *name = NULL;
  40   void *cpu = NULL;
  41
  42   xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, name, cpu) {
  43     int *id = xbt_dict_get_or_null(used_routing->host_id,name);
  44     xbt_assert1(id, "No host %s found in the platform file", name);
  45
  46     workstation_new(name, cpu, *id);
  47   }
  48 }
  49
  50 static int resource_used(void *resource_id)
  51 {
  52   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  53 }
  54
  55 static void parallel_action_cancel(surf_action_t action)
  56 {
  57   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  58 }
  59
  60 static int parallel_action_free(surf_action_t action)
  61 {
  62   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  63 }
  64
  65 static int action_unref(surf_action_t action)
  66 {
  67   if (action->model_type == surf_network_model)
  68     return surf_network_model->action_unref(action);
  69   else if (action->model_type == surf_cpu_model)
  70     return surf_cpu_model->action_unref(action);
  71   else if (action->model_type == surf_workstation_model)
  72     return parallel_action_free(action);
  73   else
  74     DIE_IMPOSSIBLE;
  75   return 0;
  76 }
  77
  78 static void action_cancel(surf_action_t action)
  79 {
  80   if (action->model_type == surf_network_model)
  81     surf_network_model->action_cancel(action);
  82   else if (action->model_type == surf_cpu_model)
  83     surf_cpu_model->action_cancel(action);
  84   else if (action->model_type == surf_workstation_model)
  85     parallel_action_cancel(action);
  86   else
  87     DIE_IMPOSSIBLE;
  88   return;
  89 }
  90
  91 static void ws_action_state_set(surf_action_t action,
  92                                 e_surf_action_state_t state)
  93 {
  94   if (action->model_type == surf_network_model)
  95     surf_network_model->action_state_set(action, state);
  96   else if (action->model_type == surf_cpu_model)
  97     surf_cpu_model->action_state_set(action, state);
  98   else if (action->model_type == surf_workstation_model)
  99     surf_action_state_set(action, state);
 100   else
 101     DIE_IMPOSSIBLE;
 102   return;
 103 }
 104
 105 static double share_resources(double now)
 106 {
 107   return -1.0;
 108 }
 109
 110 static void update_actions_state(double now, double delta)
 111 {
 112   return;
 113 }
 114
 115 static void update_resource_state(void *id,
 116                                   tmgr_trace_event_t event_type,
 117                                   double value, double date)
 118 {
 119   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 120 }
 121
 122 static surf_action_t execute(void *workstation, double size)
 123 {
 124   return surf_cpu_model->extension.
 125     cpu.execute(((workstation_CLM03_t) workstation)->cpu, size);
 126 }
 127
 128 static surf_action_t action_sleep(void *workstation, double duration)
 129 {
 130   return surf_cpu_model->extension.
 131     cpu.sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 132 }
 133
 134 static void action_suspend(surf_action_t action)
 135 {
 136   if (action->model_type == surf_network_model)
 137     surf_network_model->suspend(action);
 138   else if (action->model_type == surf_cpu_model)
 139     surf_cpu_model->suspend(action);
 140   else
 141     DIE_IMPOSSIBLE;
 142 }
 143
 144 static void action_resume(surf_action_t action)
 145 {
 146   if (action->model_type == surf_network_model)
 147     surf_network_model->resume(action);
 148   else if (action->model_type == surf_cpu_model)
 149     surf_cpu_model->resume(action);
 150   else
 151     DIE_IMPOSSIBLE;
 152 }
 153
 154 static int action_is_suspended(surf_action_t action)
 155 {
 156   if (action->model_type == surf_network_model)
 157     return surf_network_model->is_suspended(action);
 158   if (action->model_type == surf_cpu_model)
 159     return surf_cpu_model->is_suspended(action);
 160   DIE_IMPOSSIBLE;
 161 }
 162
 163 static void action_set_max_duration(surf_action_t action, double duration)
 164 {
 165   if (action->model_type == surf_network_model)
 166     surf_network_model->set_max_duration(action, duration);
 167   else if (action->model_type == surf_cpu_model)
 168     surf_cpu_model->set_max_duration(action, duration);
 169   else
 170     DIE_IMPOSSIBLE;
 171 }
 172
 173 static void action_set_priority(surf_action_t action, double priority)
 174 {
 175   if (action->model_type == surf_network_model)
 176     surf_network_model->set_priority(action, priority);
 177   else if (action->model_type == surf_cpu_model)
 178     surf_cpu_model->set_priority(action, priority);
 179   else
 180     DIE_IMPOSSIBLE;
 181 }
 182
 183 static surf_action_t communicate(void *workstation_src,
 184                                  void *workstation_dst, double size,
 185                                  double rate)
 186 {
 187   workstation_CLM03_t src = (workstation_CLM03_t) workstation_src;
 188   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 189   return surf_network_model->extension.
 190     network.communicate(surf_resource_name(src->cpu),surf_resource_name(dst->cpu),
 191         src->id,dst->id,
 192         size, rate);
 193 }
 194
 195 static e_surf_cpu_state_t get_state(void *workstation)
 196 {
 197   return surf_cpu_model->extension.
 198     cpu.get_state(((workstation_CLM03_t) workstation)->cpu);
 199 }
 200
 201 static double get_speed(void *workstation, double load)
 202 {
 203   return surf_cpu_model->extension.
 204     cpu.get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 205 }
 206
 207 static double get_available_speed(void *workstation)
 208 {
 209   return surf_cpu_model->extension.
 210     cpu.get_available_speed(((workstation_CLM03_t)
 211                              workstation)->cpu);
 212 }
 213
 214 static xbt_dict_t get_properties(void *workstation)
 215 {
 216   return surf_cpu_model->get_properties(((workstation_CLM03_t) workstation)->
 217                                         cpu);
 218 }
 219
 220 static surf_action_t execute_parallel_task(int workstation_nb,
 221                                            void **workstation_list,
 222                                            double *computation_amount,
 223                                            double *communication_amount,
 224                                            double amount, double rate)
 225 {
 226   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 227 }
 228
 229
 230 /* returns an array of network_link_CM02_t */
 231 static xbt_dynar_t get_route(void *src, void *dst)
 232 {
 233   workstation_CLM03_t workstation_src = (workstation_CLM03_t) src;
 234   workstation_CLM03_t workstation_dst = (workstation_CLM03_t) dst;
 235   return surf_network_model->extension.network.get_route(workstation_src->id,
 236                                                          workstation_dst->id);
 237 }
 238
 239 static double get_link_bandwidth(const void *link)
 240 {
 241   return surf_network_model->extension.network.get_link_bandwidth(link);
 242 }
 243
 244 static double get_link_latency(const void *link)
 245 {
 246   return surf_network_model->extension.network.get_link_latency(link);
 247 }
 248
 249 static int link_shared(const void *link)
 250 {
 251   return surf_network_model->extension.network.get_link_latency(link);
 252 }
 253
 254 static void finalize(void)
 255 {
 256   surf_model_exit(surf_workstation_model);
 257   surf_workstation_model = NULL;
 258 }
 259
 260 static void surf_workstation_model_init_internal(void)
 261 {
 262   surf_workstation_model = surf_model_init();
 263
 264   surf_workstation_model->name = "Workstation";
 265   surf_workstation_model->action_unref = action_unref;
 266   surf_workstation_model->action_cancel = action_cancel;
 267   surf_workstation_model->action_state_set = ws_action_state_set;
 268
 269   surf_workstation_model->model_private->resource_used = resource_used;
 270   surf_workstation_model->model_private->share_resources = share_resources;
 271   surf_workstation_model->model_private->update_actions_state =
 272     update_actions_state;
 273   surf_workstation_model->model_private->update_resource_state =
 274     update_resource_state;
 275   surf_workstation_model->model_private->finalize = finalize;
 276
 277   surf_workstation_model->suspend = action_suspend;
 278   surf_workstation_model->resume = action_resume;
 279   surf_workstation_model->is_suspended = action_is_suspended;
 280   surf_workstation_model->set_max_duration = action_set_max_duration;
 281   surf_workstation_model->set_priority = action_set_priority;
 282
 283   surf_workstation_model->extension.workstation.execute = execute;
 284   surf_workstation_model->extension.workstation.sleep = action_sleep;
 285   surf_workstation_model->extension.workstation.get_state = get_state;
 286   surf_workstation_model->extension.workstation.get_speed = get_speed;
 287   surf_workstation_model->extension.workstation.get_available_speed =
 288     get_available_speed;
 289
 290   /*manage the properties of the workstation */
 291   surf_workstation_model->get_properties = get_properties;
 292
 293   surf_workstation_model->extension.workstation.communicate = communicate;
 294   surf_workstation_model->extension.workstation.get_route = get_route;
 295   surf_workstation_model->extension.workstation.execute_parallel_task =
 296     execute_parallel_task;
 297   surf_workstation_model->extension.workstation.get_link_bandwidth =
 298     get_link_bandwidth;
 299   surf_workstation_model->extension.workstation.get_link_latency =
 300     get_link_latency;
 301   surf_workstation_model->extension.workstation.link_shared = link_shared;
 302 }
 303
 304 /********************************************************************/
 305 /* The model used in MSG and presented at CCGrid03                  */
 306 /********************************************************************/
 307 /* @InProceedings{Casanova.CLM_03, */
 308 /*   author = {Henri Casanova and Arnaud Legrand and Loris Marchal}, */
 309 /*   title = {Scheduling Distributed Applications: the SimGrid Simulation Framework}, */
 310 /*   booktitle = {Proceedings of the third IEEE International Symposium on Cluster Computing and the Grid (CCGrid'03)}, */
 311 /*   publisher = {"IEEE Computer Society Press"}, */
 312 /*   month = {may}, */
 313 /*   year = {2003} */
 314 /* } */
 315 void surf_workstation_model_init_CLM03(const char *filename)
 316 {
 317   surf_workstation_model_init_internal();
 318   surf_cpu_model_init_Cas01(filename);
 319   surf_network_model_init_CM02(filename);
 320   update_model_description(surf_workstation_model_description,
 321                            "CLM03", surf_workstation_model);
 322   xbt_dynar_push(model_list, &surf_workstation_model);
 323 }
 324
 325 void surf_workstation_model_init_compound(const char *filename)
 326 {
 327
 328   xbt_assert0(surf_cpu_model, "No CPU model defined yet!");
 329   xbt_assert0(surf_network_model, "No network model defined yet!");
 330   surf_workstation_model_init_internal();
 331
 332   update_model_description(surf_workstation_model_description,
 333                            "compound", surf_workstation_model);
 334
 335   xbt_dynar_push(model_list, &surf_workstation_model);
 336 }