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 "surf_private.h"
  12
  13 typedef struct workstation_CLM03 {
  14   s_surf_resource_t generic_resource;   /* Must remain first to add this to a trace */
  15   void *cpu;
  16   int id;
  17 } s_workstation_CLM03_t, *workstation_CLM03_t;
  18
  19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  20                                 "Logging specific to the SURF workstation module");
  21
  22 surf_model_t surf_workstation_model = NULL;
  23
  24 static workstation_CLM03_t workstation_new(const char *name,
  25                                            void *cpu, int id)
  26 {
  27   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  28
  29   workstation->generic_resource.model = surf_workstation_model;
  30   workstation->generic_resource.name = xbt_strdup(name);
  31   workstation->cpu = cpu;
  32   workstation->id = id;
  33
  34   xbt_dict_set(surf_model_resource_set(surf_workstation_model), name,
  35                workstation, surf_resource_free);
  36
  37   return workstation;
  38 }
  39
  40 void create_workstations(void)
  41 {
  42   xbt_dict_cursor_t cursor = NULL;
  43   char *name = NULL;
  44   void *cpu = NULL;
  45
  46   xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, name, cpu) {
  47     int *id = NULL;
  48     if (used_routing && used_routing->host_id)
  49       id = xbt_dict_get_or_null(used_routing->host_id,name);
  50
  51     workstation_new(name, cpu, id ? *id : 0);
  52   }
  53 }
  54
  55 static int resource_used(void *resource_id)
  56 {
  57   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  58 }
  59
  60 static void parallel_action_cancel(surf_action_t action)
  61 {
  62   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  63 }
  64
  65 static int parallel_action_free(surf_action_t action)
  66 {
  67   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  68 }
  69
  70 static int action_unref(surf_action_t action)
  71 {
  72   if (action->model_type == surf_network_model)
  73     return surf_network_model->action_unref(action);
  74   else if (action->model_type == surf_cpu_model)
  75     return surf_cpu_model->action_unref(action);
  76   else if (action->model_type == surf_workstation_model)
  77     return parallel_action_free(action);
  78   else
  79     DIE_IMPOSSIBLE;
  80   return 0;
  81 }
  82
  83 static void action_cancel(surf_action_t action)
  84 {
  85   if (action->model_type == surf_network_model)
  86     surf_network_model->action_cancel(action);
  87   else if (action->model_type == surf_cpu_model)
  88     surf_cpu_model->action_cancel(action);
  89   else if (action->model_type == surf_workstation_model)
  90     parallel_action_cancel(action);
  91   else
  92     DIE_IMPOSSIBLE;
  93   return;
  94 }
  95
  96 static void ws_action_state_set(surf_action_t action,
  97                                 e_surf_action_state_t state)
  98 {
  99   if (action->model_type == surf_network_model)
 100     surf_network_model->action_state_set(action, state);
 101   else if (action->model_type == surf_cpu_model)
 102     surf_cpu_model->action_state_set(action, state);
 103   else if (action->model_type == surf_workstation_model)
 104     surf_action_state_set(action, state);
 105   else
 106     DIE_IMPOSSIBLE;
 107   return;
 108 }
 109
 110 static double share_resources(double now)
 111 {
 112   return -1.0;
 113 }
 114
 115 static void update_actions_state(double now, double delta)
 116 {
 117   return;
 118 }
 119
 120 static void update_resource_state(void *id,
 121                                   tmgr_trace_event_t event_type,
 122                                   double value, double date)
 123 {
 124   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 125 }
 126
 127 static surf_action_t execute(void *workstation, double size)
 128 {
 129   return surf_cpu_model->extension.cpu.
 130     execute(((workstation_CLM03_t) workstation)->cpu, size);
 131 }
 132
 133 static surf_action_t action_sleep(void *workstation, double duration)
 134 {
 135   return surf_cpu_model->extension.cpu.
 136     sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 137 }
 138
 139 static void action_suspend(surf_action_t action)
 140 {
 141   if (action->model_type == surf_network_model)
 142     surf_network_model->suspend(action);
 143   else if (action->model_type == surf_cpu_model)
 144     surf_cpu_model->suspend(action);
 145   else
 146     DIE_IMPOSSIBLE;
 147 }
 148
 149 static void action_resume(surf_action_t action)
 150 {
 151   if (action->model_type == surf_network_model)
 152     surf_network_model->resume(action);
 153   else if (action->model_type == surf_cpu_model)
 154     surf_cpu_model->resume(action);
 155   else
 156     DIE_IMPOSSIBLE;
 157 }
 158
 159 static int action_is_suspended(surf_action_t action)
 160 {
 161   if (action->model_type == surf_network_model)
 162     return surf_network_model->is_suspended(action);
 163   if (action->model_type == surf_cpu_model)
 164     return surf_cpu_model->is_suspended(action);
 165   DIE_IMPOSSIBLE;
 166 }
 167
 168 static void action_set_max_duration(surf_action_t action, double duration)
 169 {
 170   if (action->model_type == surf_network_model)
 171     surf_network_model->set_max_duration(action, duration);
 172   else if (action->model_type == surf_cpu_model)
 173     surf_cpu_model->set_max_duration(action, duration);
 174   else
 175     DIE_IMPOSSIBLE;
 176 }
 177
 178 static void action_set_priority(surf_action_t action, double priority)
 179 {
 180   if (action->model_type == surf_network_model)
 181     surf_network_model->set_priority(action, priority);
 182   else if (action->model_type == surf_cpu_model)
 183     surf_cpu_model->set_priority(action, priority);
 184   else
 185     DIE_IMPOSSIBLE;
 186 }
 187
 188 static double action_get_remains(surf_action_t action)
 189 {
 190   if (action->model_type == surf_network_model)
 191     return surf_network_model->get_remains(action);
 192   if (action->model_type == surf_cpu_model)
 193     return surf_cpu_model->get_remains(action);
 194   DIE_IMPOSSIBLE;
 195 }
 196
 197 static surf_action_t communicate(void *workstation_src,
 198                                  void *workstation_dst, double size,
 199                                  double rate)
 200 {
 201   workstation_CLM03_t src = (workstation_CLM03_t) workstation_src;
 202   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 203   return surf_network_model->extension.network.
 204     communicate(surf_resource_name(src->cpu), surf_resource_name(dst->cpu),
 205                 src->id, dst->id, size, rate);
 206 }
 207
 208 static e_surf_resource_state_t get_state(void *workstation)
 209 {
 210   return surf_cpu_model->extension.cpu.
 211     get_state(((workstation_CLM03_t) workstation)->cpu);
 212 }
 213
 214 static double get_speed(void *workstation, double load)
 215 {
 216   return surf_cpu_model->extension.cpu.
 217     get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 218 }
 219
 220 static double get_available_speed(void *workstation)
 221 {
 222   return surf_cpu_model->extension.cpu.
 223     get_available_speed(((workstation_CLM03_t)
 224                          workstation)->cpu);
 225 }
 226
 227 static surf_action_t execute_parallel_task(int workstation_nb,
 228                                            void **workstation_list,
 229                                            double *computation_amount,
 230                                            double *communication_amount,
 231                                            double amount, double rate)
 232 {
 233   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 234 }
 235
 236
 237 /* returns an array of network_link_CM02_t */
 238 static xbt_dynar_t get_route(void *src, void *dst)
 239 {
 240   workstation_CLM03_t workstation_src = (workstation_CLM03_t) src;
 241   workstation_CLM03_t workstation_dst = (workstation_CLM03_t) dst;
 242   return surf_network_model->extension.network.get_route(workstation_src->id,
 243                                                          workstation_dst->id);
 244 }
 245
 246 static double get_link_bandwidth(const void *link)
 247 {
 248   return surf_network_model->extension.network.get_link_bandwidth(link);
 249 }
 250
 251 static double get_link_latency(const void *link)
 252 {
 253   return surf_network_model->extension.network.get_link_latency(link);
 254 }
 255
 256 static int link_shared(const void *link)
 257 {
 258   return surf_network_model->extension.network.get_link_latency(link);
 259 }
 260
 261 static void finalize(void)
 262 {
 263   surf_model_exit(surf_workstation_model);
 264   surf_workstation_model = NULL;
 265 }
 266
 267 static xbt_dict_t get_properties(const void *ws)
 268 {
 269   return surf_resource_properties(((workstation_CLM03_t) ws)->cpu);
 270 }
 271
 272 static void surf_workstation_model_init_internal(void)
 273 {
 274   surf_workstation_model = surf_model_init();
 275
 276   surf_workstation_model->name = "Workstation";
 277   surf_workstation_model->action_unref = action_unref;
 278   surf_workstation_model->action_cancel = action_cancel;
 279   surf_workstation_model->action_state_set = ws_action_state_set;
 280
 281   surf_workstation_model->model_private->resource_used = resource_used;
 282   surf_workstation_model->model_private->share_resources = share_resources;
 283   surf_workstation_model->model_private->update_actions_state =
 284     update_actions_state;
 285   surf_workstation_model->model_private->update_resource_state =
 286     update_resource_state;
 287   surf_workstation_model->model_private->finalize = finalize;
 288
 289   surf_workstation_model->suspend = action_suspend;
 290   surf_workstation_model->resume = action_resume;
 291   surf_workstation_model->is_suspended = action_is_suspended;
 292   surf_workstation_model->set_max_duration = action_set_max_duration;
 293   surf_workstation_model->set_priority = action_set_priority;
 294   surf_workstation_model->get_remains = action_get_remains;
 295
 296   surf_workstation_model->extension.workstation.execute = execute;
 297   surf_workstation_model->extension.workstation.sleep = action_sleep;
 298   surf_workstation_model->extension.workstation.get_state = get_state;
 299   surf_workstation_model->extension.workstation.get_speed = get_speed;
 300   surf_workstation_model->extension.workstation.get_available_speed =
 301     get_available_speed;
 302
 303   surf_workstation_model->extension.workstation.communicate = communicate;
 304   surf_workstation_model->extension.workstation.get_route = get_route;
 305   surf_workstation_model->extension.workstation.execute_parallel_task =
 306     execute_parallel_task;
 307   surf_workstation_model->extension.workstation.get_link_bandwidth =
 308     get_link_bandwidth;
 309   surf_workstation_model->extension.workstation.get_link_latency =
 310     get_link_latency;
 311   surf_workstation_model->extension.workstation.link_shared = link_shared;
 312   surf_workstation_model->extension.workstation.get_properties =
 313     get_properties;
 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_im(filename);
 331   surf_network_model_init_LegrandVelho(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 }