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, void *card)
  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->network_card = card;
  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   void *nw_card = NULL;
  42
  43   xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, name, cpu) {
  44     nw_card = surf_model_resource_by_name(surf_network_model, name);
  45     xbt_assert1(nw_card, "No corresponding card found for %s", name);
  46
  47     workstation_new(name, cpu, nw_card);
  48   }
  49 }
  50
  51 static int resource_used(void *resource_id)
  52 {
  53   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  54 }
  55
  56 static void parallel_action_cancel(surf_action_t action)
  57 {
  58   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  59 }
  60
  61 static int parallel_action_free(surf_action_t action)
  62 {
  63   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  64 }
  65
  66 static int action_unref(surf_action_t action)
  67 {
  68   if (action->model_type == surf_network_model)
  69     return surf_network_model->action_unref(action);
  70   else if (action->model_type == surf_cpu_model)
  71     return surf_cpu_model->action_unref(action);
  72   else if (action->model_type == surf_workstation_model)
  73     return parallel_action_free(action);
  74   else
  75     DIE_IMPOSSIBLE;
  76   return 0;
  77 }
  78
  79 static void action_cancel(surf_action_t action)
  80 {
  81   if (action->model_type == surf_network_model)
  82     surf_network_model->action_cancel(action);
  83   else if (action->model_type == surf_cpu_model)
  84     surf_cpu_model->action_cancel(action);
  85   else if (action->model_type == surf_workstation_model)
  86     parallel_action_cancel(action);
  87   else
  88     DIE_IMPOSSIBLE;
  89   return;
  90 }
  91
  92 static void ws_action_state_set(surf_action_t action,
  93                                 e_surf_action_state_t state)
  94 {
  95   if (action->model_type == surf_network_model)
  96     surf_network_model->action_state_set(action, state);
  97   else if (action->model_type == surf_cpu_model)
  98     surf_cpu_model->action_state_set(action, state);
  99   else if (action->model_type == surf_workstation_model)
 100     surf_action_state_set(action, state);
 101   else
 102     DIE_IMPOSSIBLE;
 103   return;
 104 }
 105
 106 static double share_resources(double now)
 107 {
 108   return -1.0;
 109 }
 110
 111 static void update_actions_state(double now, double delta)
 112 {
 113   return;
 114 }
 115
 116 static void update_resource_state(void *id,
 117                                   tmgr_trace_event_t event_type,
 118                                   double value, double date)
 119 {
 120   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 121 }
 122
 123 static surf_action_t execute(void *workstation, double size)
 124 {
 125   return surf_cpu_model->extension.
 126     cpu.execute(((workstation_CLM03_t) workstation)->cpu, size);
 127 }
 128
 129 static surf_action_t action_sleep(void *workstation, double duration)
 130 {
 131   return surf_cpu_model->extension.
 132     cpu.sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 133 }
 134
 135 static void action_suspend(surf_action_t action)
 136 {
 137   if (action->model_type == surf_network_model)
 138     surf_network_model->suspend(action);
 139   else if (action->model_type == surf_cpu_model)
 140     surf_cpu_model->suspend(action);
 141   else
 142     DIE_IMPOSSIBLE;
 143 }
 144
 145 static void action_resume(surf_action_t action)
 146 {
 147   if (action->model_type == surf_network_model)
 148     surf_network_model->resume(action);
 149   else if (action->model_type == surf_cpu_model)
 150     surf_cpu_model->resume(action);
 151   else
 152     DIE_IMPOSSIBLE;
 153 }
 154
 155 static int action_is_suspended(surf_action_t action)
 156 {
 157   if (action->model_type == surf_network_model)
 158     return surf_network_model->is_suspended(action);
 159   if (action->model_type == surf_cpu_model)
 160     return surf_cpu_model->is_suspended(action);
 161   DIE_IMPOSSIBLE;
 162 }
 163
 164 static void action_set_max_duration(surf_action_t action, double duration)
 165 {
 166   if (action->model_type == surf_network_model)
 167     surf_network_model->set_max_duration(action, duration);
 168   else if (action->model_type == surf_cpu_model)
 169     surf_cpu_model->set_max_duration(action, duration);
 170   else
 171     DIE_IMPOSSIBLE;
 172 }
 173
 174 static void action_set_priority(surf_action_t action, double priority)
 175 {
 176   if (action->model_type == surf_network_model)
 177     surf_network_model->set_priority(action, priority);
 178   else if (action->model_type == surf_cpu_model)
 179     surf_cpu_model->set_priority(action, priority);
 180   else
 181     DIE_IMPOSSIBLE;
 182 }
 183
 184 static surf_action_t communicate(void *workstation_src,
 185                                  void *workstation_dst, double size,
 186                                  double rate)
 187 {
 188   return surf_network_model->extension.
 189     network.communicate(((workstation_CLM03_t) workstation_src)->network_card,
 190                         ((workstation_CLM03_t) workstation_dst)->network_card,
 191                         size, rate);
 192 }
 193
 194 static e_surf_cpu_state_t get_state(void *workstation)
 195 {
 196   return surf_cpu_model->extension.
 197     cpu.get_state(((workstation_CLM03_t) workstation)->cpu);
 198 }
 199
 200 static double get_speed(void *workstation, double load)
 201 {
 202   return surf_cpu_model->extension.
 203     cpu.get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 204 }
 205
 206 static double get_available_speed(void *workstation)
 207 {
 208   return surf_cpu_model->extension.
 209     cpu.get_available_speed(((workstation_CLM03_t)
 210                              workstation)->cpu);
 211 }
 212
 213 static xbt_dict_t get_properties(void *workstation)
 214 {
 215   return surf_cpu_model->get_properties(((workstation_CLM03_t) workstation)->
 216                                         cpu);
 217 }
 218
 219 static surf_action_t execute_parallel_task(int workstation_nb,
 220                                            void **workstation_list,
 221                                            double *computation_amount,
 222                                            double *communication_amount,
 223                                            double amount, double rate)
 224 {
 225   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 226 }
 227
 228
 229 /* returns an array of network_link_CM02_t */
 230 static const void **get_route(void *src, void *dst)
 231 {
 232   workstation_CLM03_t workstation_src = (workstation_CLM03_t) src;
 233   workstation_CLM03_t workstation_dst = (workstation_CLM03_t) dst;
 234   return surf_network_model->extension.network.get_route(workstation_src->
 235                                                          network_card,
 236                                                          workstation_dst->
 237                                                          network_card);
 238 }
 239
 240 static int get_route_size(void *src, void *dst)
 241 {
 242   workstation_CLM03_t workstation_src = (workstation_CLM03_t) src;
 243   workstation_CLM03_t workstation_dst = (workstation_CLM03_t) dst;
 244   return surf_network_model->extension.
 245     network.get_route_size(workstation_src->network_card,
 246                            workstation_dst->network_card);
 247 }
 248
 249 static double get_link_bandwidth(const void *link)
 250 {
 251   return surf_network_model->extension.network.get_link_bandwidth(link);
 252 }
 253
 254 static double get_link_latency(const void *link)
 255 {
 256   return surf_network_model->extension.network.get_link_latency(link);
 257 }
 258
 259 static int link_shared(const void *link)
 260 {
 261   return surf_network_model->extension.network.get_link_latency(link);
 262 }
 263
 264 static void finalize(void)
 265 {
 266   surf_model_exit(surf_workstation_model);
 267   surf_workstation_model = NULL;
 268 }
 269
 270 static void surf_workstation_model_init_internal(void)
 271 {
 272   surf_workstation_model = surf_model_init();
 273
 274   surf_workstation_model->name = "Workstation";
 275   surf_workstation_model->action_unref = action_unref;
 276   surf_workstation_model->action_cancel = action_cancel;
 277   surf_workstation_model->action_state_set = ws_action_state_set;
 278
 279   surf_workstation_model->model_private->resource_used = resource_used;
 280   surf_workstation_model->model_private->share_resources = share_resources;
 281   surf_workstation_model->model_private->update_actions_state =
 282     update_actions_state;
 283   surf_workstation_model->model_private->update_resource_state =
 284     update_resource_state;
 285   surf_workstation_model->model_private->finalize = finalize;
 286
 287   surf_workstation_model->suspend = action_suspend;
 288   surf_workstation_model->resume = action_resume;
 289   surf_workstation_model->is_suspended = action_is_suspended;
 290   surf_workstation_model->set_max_duration = action_set_max_duration;
 291   surf_workstation_model->set_priority = action_set_priority;
 292
 293   surf_workstation_model->extension.workstation.execute = execute;
 294   surf_workstation_model->extension.workstation.sleep = action_sleep;
 295   surf_workstation_model->extension.workstation.get_state = get_state;
 296   surf_workstation_model->extension.workstation.get_speed = get_speed;
 297   surf_workstation_model->extension.workstation.get_available_speed =
 298     get_available_speed;
 299
 300   /*manage the properties of the workstation */
 301   surf_workstation_model->get_properties = get_properties;
 302
 303   surf_workstation_model->extension.workstation.communicate = communicate;
 304   surf_workstation_model->extension.workstation.execute_parallel_task =
 305     execute_parallel_task;
 306   surf_workstation_model->extension.workstation.get_route = get_route;
 307   surf_workstation_model->extension.workstation.get_route_size =
 308     get_route_size;
 309   surf_workstation_model->extension.workstation.get_link_bandwidth =
 310     get_link_bandwidth;
 311   surf_workstation_model->extension.workstation.get_link_latency =
 312     get_link_latency;
 313   surf_workstation_model->extension.workstation.link_shared = link_shared;
 314 }
 315
 316 /********************************************************************/
 317 /* The model used in MSG and presented at CCGrid03                  */
 318 /********************************************************************/
 319 /* @InProceedings{Casanova.CLM_03, */
 320 /*   author = {Henri Casanova and Arnaud Legrand and Loris Marchal}, */
 321 /*   title = {Scheduling Distributed Applications: the SimGrid Simulation Framework}, */
 322 /*   booktitle = {Proceedings of the third IEEE International Symposium on Cluster Computing and the Grid (CCGrid'03)}, */
 323 /*   publisher = {"IEEE Computer Society Press"}, */
 324 /*   month = {may}, */
 325 /*   year = {2003} */
 326 /* } */
 327 void surf_workstation_model_init_CLM03(const char *filename)
 328 {
 329   surf_workstation_model_init_internal();
 330   surf_cpu_model_init_Cas01(filename);
 331   surf_network_model_init_CM02(filename);
 332   update_model_description(surf_workstation_model_description,
 333                            "CLM03", surf_workstation_model);
 334   xbt_dynar_push(model_list, &surf_workstation_model);
 335 }
 336
 337 void surf_workstation_model_init_compound(const char *filename)
 338 {
 339
 340   xbt_assert0(surf_cpu_model, "No CPU model defined yet!");
 341   xbt_assert0(surf_network_model, "No network model defined yet!");
 342   surf_workstation_model_init_internal();
 343
 344   update_model_description(surf_workstation_model_description,
 345                            "compound", surf_workstation_model);
 346
 347   xbt_dynar_push(model_list, &surf_workstation_model);
 348 }