src/surf/workstation.c

   1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "xbt/ex.h"
   8 #include "xbt/dict.h"
   9 #include "portable.h"
  10 #include "surf_private.h"
  11
  12 typedef struct workstation_CLM03 {
  13   s_surf_resource_t generic_resource;   /* Must remain first to add this to a trace */
  14   void *cpu;
  15 } s_workstation_CLM03_t, *workstation_CLM03_t;
  16
  17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  18                                 "Logging specific to the SURF workstation module");
  19
  20 surf_model_t surf_workstation_model = NULL;
  21
  22 static workstation_CLM03_t workstation_new(const char *name,
  23                                            void *cpu)
  24 {
  25   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  26
  27   workstation->generic_resource.model = surf_workstation_model;
  28   workstation->generic_resource.name = xbt_strdup(name);
  29   workstation->cpu = cpu;
  30
  31   xbt_dict_set(surf_model_resource_set(surf_workstation_model), name,
  32                workstation, surf_resource_free);
  33
  34   return workstation;
  35 }
  36
  37 void create_workstations(void)
  38 {
  39   xbt_dict_cursor_t cursor = NULL;
  40   char *name = NULL;
  41   void *cpu = NULL;
  42
  43   xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, name, cpu) {
  44           workstation_new(name, cpu);
  45   }
  46 }
  47
  48 static int ws_resource_used(void *resource_id)
  49 {
  50   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  51 }
  52
  53 static void ws_parallel_action_cancel(surf_action_t action)
  54 {
  55   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  56 }
  57
  58 static int ws_parallel_action_free(surf_action_t action)
  59 {
  60   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  61 }
  62
  63 static int ws_action_unref(surf_action_t action)
  64 {
  65   if (action->model_type == surf_network_model)
  66     return surf_network_model->action_unref(action);
  67   else if (action->model_type == surf_cpu_model)
  68     return surf_cpu_model->action_unref(action);
  69   else if (action->model_type == surf_workstation_model)
  70     return ws_parallel_action_free(action);
  71   else
  72     DIE_IMPOSSIBLE;
  73   return 0;
  74 }
  75
  76 static void ws_action_cancel(surf_action_t action)
  77 {
  78   if (action->model_type == surf_network_model)
  79     surf_network_model->action_cancel(action);
  80   else if (action->model_type == surf_cpu_model)
  81     surf_cpu_model->action_cancel(action);
  82   else if (action->model_type == surf_workstation_model)
  83     ws_parallel_action_cancel(action);
  84   else
  85     DIE_IMPOSSIBLE;
  86   return;
  87 }
  88
  89 static void ws_action_state_set(surf_action_t action,
  90                                 e_surf_action_state_t state)
  91 {
  92   if (action->model_type == surf_network_model)
  93     surf_network_model->action_state_set(action, state);
  94   else if (action->model_type == surf_cpu_model)
  95     surf_cpu_model->action_state_set(action, state);
  96   else if (action->model_type == surf_workstation_model)
  97     surf_action_state_set(action, state);
  98   else
  99     DIE_IMPOSSIBLE;
 100   return;
 101 }
 102
 103 static double ws_share_resources(double now)
 104 {
 105   return -1.0;
 106 }
 107
 108 static void ws_update_actions_state(double now, double delta)
 109 {
 110   return;
 111 }
 112
 113 static void ws_update_resource_state(void *id,
 114                                   tmgr_trace_event_t event_type,
 115                                   double value, double date)
 116 {
 117   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 118 }
 119
 120 static surf_action_t ws_execute(void *workstation, double size)
 121 {
 122   return surf_cpu_model->extension.cpu.
 123     execute(((workstation_CLM03_t) workstation)->cpu, size);
 124 }
 125
 126 static surf_action_t ws_action_sleep(void *workstation, double duration)
 127 {
 128   return surf_cpu_model->extension.cpu.
 129     sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 130 }
 131
 132 static void ws_action_suspend(surf_action_t action)
 133 {
 134   if (action->model_type == surf_network_model)
 135     surf_network_model->suspend(action);
 136   else if (action->model_type == surf_cpu_model)
 137     surf_cpu_model->suspend(action);
 138   else
 139     DIE_IMPOSSIBLE;
 140 }
 141
 142 static void ws_action_resume(surf_action_t action)
 143 {
 144   if (action->model_type == surf_network_model)
 145     surf_network_model->resume(action);
 146   else if (action->model_type == surf_cpu_model)
 147     surf_cpu_model->resume(action);
 148   else
 149     DIE_IMPOSSIBLE;
 150 }
 151
 152 static int ws_action_is_suspended(surf_action_t action)
 153 {
 154   if (action->model_type == surf_network_model)
 155     return surf_network_model->is_suspended(action);
 156   if (action->model_type == surf_cpu_model)
 157     return surf_cpu_model->is_suspended(action);
 158   DIE_IMPOSSIBLE;
 159 }
 160
 161 static void ws_action_set_max_duration(surf_action_t action, double duration)
 162 {
 163   if (action->model_type == surf_network_model)
 164     surf_network_model->set_max_duration(action, duration);
 165   else if (action->model_type == surf_cpu_model)
 166     surf_cpu_model->set_max_duration(action, duration);
 167   else
 168     DIE_IMPOSSIBLE;
 169 }
 170
 171 static void ws_action_set_priority(surf_action_t action, double priority)
 172 {
 173   if (action->model_type == surf_network_model)
 174     surf_network_model->set_priority(action, priority);
 175   else if (action->model_type == surf_cpu_model)
 176     surf_cpu_model->set_priority(action, priority);
 177   else
 178     DIE_IMPOSSIBLE;
 179 }
 180
 181 static int ws_get_latency_limited(surf_action_t action)
 182 {
 183   if (action->model_type == surf_network_model)
 184     return surf_network_model->get_latency_limited(action);
 185   INFO0("You tried to ask if a non network action is limited by latency, aborting...");
 186   DIE_IMPOSSIBLE;
 187 }
 188
 189 static double ws_action_get_remains(surf_action_t action)
 190 {
 191   if (action->model_type == surf_network_model)
 192     return surf_network_model->get_remains(action);
 193   if (action->model_type == surf_cpu_model)
 194     return surf_cpu_model->get_remains(action);
 195   DIE_IMPOSSIBLE;
 196 }
 197
 198 static surf_action_t ws_communicate(void *workstation_src,
 199                                  void *workstation_dst, double size,
 200                                  double rate)
 201 {
 202   workstation_CLM03_t src = (workstation_CLM03_t) workstation_src;
 203   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 204   return surf_network_model->extension.network.
 205     communicate(surf_resource_name(src->cpu), surf_resource_name(dst->cpu),
 206                 size, rate);
 207 }
 208
 209 static e_surf_resource_state_t ws_get_state(void *workstation)
 210 {
 211   return surf_cpu_model->extension.cpu.
 212     get_state(((workstation_CLM03_t) workstation)->cpu);
 213 }
 214
 215 static double ws_get_speed(void *workstation, double load)
 216 {
 217   return surf_cpu_model->extension.cpu.
 218     get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 219 }
 220
 221 static double ws_get_available_speed(void *workstation)
 222 {
 223   return surf_cpu_model->extension.cpu.
 224     get_available_speed(((workstation_CLM03_t)
 225                          workstation)->cpu);
 226 }
 227
 228 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 229                                            void **workstation_list,
 230                                            double *computation_amount,
 231                                            double *communication_amount,
 232                                            double amount, double rate)
 233 {
 234   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 235 }
 236
 237
 238 /* returns an array of network_link_CM02_t */
 239 static xbt_dynar_t ws_get_route(void *src, void *dst)
 240 {
 241   return surf_network_model->extension.network.get_route(surf_resource_name(src),
 242                          surf_resource_name(src));
 243 }
 244
 245 static double ws_get_link_bandwidth(const void *link)
 246 {
 247   return surf_network_model->extension.network.get_link_bandwidth(link);
 248 }
 249
 250 static double ws_get_link_latency(const void *link)
 251 {
 252   return surf_network_model->extension.network.get_link_latency(link);
 253 }
 254
 255 static int ws_link_shared(const void *link)
 256 {
 257   return surf_network_model->extension.network.get_link_latency(link);
 258 }
 259
 260 static void ws_finalize(void)
 261 {
 262   surf_model_exit(surf_workstation_model);
 263   surf_workstation_model = NULL;
 264 }
 265
 266 static xbt_dict_t ws_get_properties(const void *ws)
 267 {
 268   return surf_resource_properties(((workstation_CLM03_t) ws)->cpu);
 269 }
 270
 271 static void surf_workstation_model_init_internal(void)
 272 {
 273   surf_workstation_model = surf_model_init();
 274
 275   surf_workstation_model->name = "Workstation";
 276   surf_workstation_model->action_unref = ws_action_unref;
 277   surf_workstation_model->action_cancel = ws_action_cancel;
 278   surf_workstation_model->action_state_set = ws_action_state_set;
 279
 280   surf_workstation_model->model_private->resource_used = ws_resource_used;
 281   surf_workstation_model->model_private->share_resources = ws_share_resources;
 282   surf_workstation_model->model_private->update_actions_state =
 283     ws_update_actions_state;
 284   surf_workstation_model->model_private->update_resource_state =
 285     ws_update_resource_state;
 286   surf_workstation_model->model_private->finalize = ws_finalize;
 287
 288   surf_workstation_model->suspend = ws_action_suspend;
 289   surf_workstation_model->resume = ws_action_resume;
 290   surf_workstation_model->is_suspended = ws_action_is_suspended;
 291   surf_workstation_model->set_max_duration = ws_action_set_max_duration;
 292   surf_workstation_model->set_priority = ws_action_set_priority;
 293   surf_workstation_model->get_remains = ws_action_get_remains;
 294   surf_workstation_model->get_latency_limited = ws_get_latency_limited;
 295
 296   surf_workstation_model->extension.workstation.execute = ws_execute;
 297   surf_workstation_model->extension.workstation.sleep = ws_action_sleep;
 298   surf_workstation_model->extension.workstation.get_state = ws_get_state;
 299   surf_workstation_model->extension.workstation.get_speed = ws_get_speed;
 300   surf_workstation_model->extension.workstation.get_available_speed =
 301     ws_get_available_speed;
 302
 303   surf_workstation_model->extension.workstation.communicate = ws_communicate;
 304   surf_workstation_model->extension.workstation.get_route = ws_get_route;
 305   surf_workstation_model->extension.workstation.execute_parallel_task =
 306     ws_execute_parallel_task;
 307   surf_workstation_model->extension.workstation.get_link_bandwidth =
 308     ws_get_link_bandwidth;
 309   surf_workstation_model->extension.workstation.get_link_latency =
 310     ws_get_link_latency;
 311   surf_workstation_model->extension.workstation.link_shared = ws_link_shared;
 312   surf_workstation_model->extension.workstation.get_properties =
 313     ws_get_properties;
 314
 315 }
 316
 317 /********************************************************************/
 318 /* The model used in MSG and presented at CCGrid03                  */
 319 /********************************************************************/
 320 /* @InProceedings{Casanova.CLM_03, */
 321 /*   author = {Henri Casanova and Arnaud Legrand and Loris Marchal}, */
 322 /*   title = {Scheduling Distributed Applications: the SimGrid Simulation Framework}, */
 323 /*   booktitle = {Proceedings of the third IEEE International Symposium on Cluster Computing and the Grid (CCGrid'03)}, */
 324 /*   publisher = {"IEEE Computer Society Press"}, */
 325 /*   month = {may}, */
 326 /*   year = {2003} */
 327 /* } */
 328 void surf_workstation_model_init_CLM03(const char *filename)
 329 {
 330   surf_workstation_model_init_internal();
 331   surf_cpu_model_init_Cas01_im(filename);
 332   surf_network_model_init_LegrandVelho(filename);
 333   update_model_description(surf_workstation_model_description,
 334                            "CLM03", surf_workstation_model);
 335   xbt_dynar_push(model_list, &surf_workstation_model);
 336 }
 337
 338 void surf_workstation_model_init_compound(const char *filename)
 339 {
 340
 341   xbt_assert0(surf_cpu_model, "No CPU model defined yet!");
 342   xbt_assert0(surf_network_model, "No network model defined yet!");
 343   surf_workstation_model_init_internal();
 344
 345   update_model_description(surf_workstation_model_description,
 346                            "compound", surf_workstation_model);
 347
 348   xbt_dynar_push(model_list, &surf_workstation_model);
 349 }