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 #include "surf/surf_resource.h"
  12
  13
  14
  15 typedef struct workstation_CLM03 {
  16   s_surf_resource_t generic_resource;   /* Must remain first to add this to a trace */
  17   void *cpu;
  18   void *storage;
  19 } s_workstation_CLM03_t, *workstation_CLM03_t;
  20
  21 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  22                                 "Logging specific to the SURF workstation module");
  23
  24 surf_model_t surf_workstation_model = NULL;
  25
  26 static workstation_CLM03_t workstation_new(const char *name, void *cpu, void *storage)
  27 {
  28   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  29
  30   workstation->generic_resource.model = surf_workstation_model;
  31   workstation->generic_resource.name = xbt_strdup(name);
  32   workstation->cpu = cpu;
  33   workstation->storage = storage;
  34
  35   xbt_lib_set(host_lib, name, SURF_WKS_LEVEL, workstation);
  36
  37   return workstation;
  38 }
  39
  40 void create_workstations(void)
  41 {
  42   xbt_lib_cursor_t cursor = NULL;
  43   char *name = NULL;
  44   void **cpu = NULL;
  45   void *storage = NULL;
  46   xbt_lib_foreach(host_lib, cursor, name, cpu) {
  47           if(cpu[SURF_CPU_LEVEL])
  48             // Need to find storage attached to workstation
  49             workstation_new(name, cpu[SURF_CPU_LEVEL],storage);
  50   }
  51 }
  52
  53 static int ws_resource_used(void *resource_id)
  54 {
  55   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  56   return -1;
  57 }
  58
  59 static void ws_parallel_action_cancel(surf_action_t action)
  60 {
  61   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  62 }
  63
  64 static int ws_parallel_action_free(surf_action_t action)
  65 {
  66   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  67   return -1;
  68 }
  69
  70 static int ws_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 ws_parallel_action_free(action);
  78   else
  79     DIE_IMPOSSIBLE;
  80   return 0;
  81 }
  82
  83 static void ws_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     ws_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 ws_share_resources(double now)
 111 {
 112   return -1.0;
 113 }
 114
 115 static void ws_update_actions_state(double now, double delta)
 116 {
 117   return;
 118 }
 119
 120 static void ws_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 ws_execute(void *workstation, double size)
 128 {
 129   void *cpu = ((workstation_CLM03_t) workstation)->cpu;
 130   return ((surf_resource_t) cpu)->model->extension.cpu.execute(cpu, size);
 131 }
 132
 133 static surf_action_t ws_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 ws_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 ws_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 ws_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   return -1;
 167 }
 168
 169 static void ws_action_set_max_duration(surf_action_t action,
 170                                        double duration)
 171 {
 172   if (action->model_type == surf_network_model)
 173     surf_network_model->set_max_duration(action, duration);
 174   else if (action->model_type == surf_cpu_model)
 175     surf_cpu_model->set_max_duration(action, duration);
 176   else
 177     DIE_IMPOSSIBLE;
 178 }
 179
 180 static void ws_action_set_priority(surf_action_t action, double priority)
 181 {
 182   if (action->model_type == surf_network_model)
 183     surf_network_model->set_priority(action, priority);
 184   else if (action->model_type == surf_cpu_model)
 185     surf_cpu_model->set_priority(action, priority);
 186   else
 187     DIE_IMPOSSIBLE;
 188 }
 189
 190 #ifdef HAVE_TRACING
 191 static void ws_action_set_category(surf_action_t action, const char *category)
 192 {
 193   if (action->model_type == surf_network_model)
 194     surf_network_model->set_category(action, category);
 195   else if (action->model_type == surf_cpu_model)
 196     surf_cpu_model->set_category(action, category);
 197   else
 198     DIE_IMPOSSIBLE;
 199 }
 200 #endif
 201
 202 #ifdef HAVE_LATENCY_BOUND_TRACKING
 203 static int ws_get_latency_limited(surf_action_t action)
 204 {
 205   if (action->model_type == surf_network_model)
 206     return surf_network_model->get_latency_limited(action);
 207   else
 208     return 0;
 209 }
 210 #endif
 211
 212 static double ws_action_get_remains(surf_action_t action)
 213 {
 214   if (action->model_type == surf_network_model)
 215     return surf_network_model->get_remains(action);
 216   if (action->model_type == surf_cpu_model)
 217     return surf_cpu_model->get_remains(action);
 218   DIE_IMPOSSIBLE;
 219   return -1.0;
 220 }
 221
 222 static surf_action_t ws_communicate(void *workstation_src,
 223                                     void *workstation_dst, double size,
 224                                     double rate)
 225 {
 226   workstation_CLM03_t src = (workstation_CLM03_t) workstation_src;
 227   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 228   return surf_network_model->extension.network.
 229       communicate(surf_resource_name(src->cpu),
 230                   surf_resource_name(dst->cpu), size, rate);
 231 }
 232
 233 static e_surf_resource_state_t ws_get_state(void *workstation)
 234 {
 235   return surf_cpu_model->extension.cpu.
 236       get_state(((workstation_CLM03_t) workstation)->cpu);
 237 }
 238
 239 static double ws_get_speed(void *workstation, double load)
 240 {
 241   return surf_cpu_model->extension.cpu.
 242       get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 243 }
 244
 245 static double ws_get_available_speed(void *workstation)
 246 {
 247   return surf_cpu_model->extension.cpu.
 248       get_available_speed(((workstation_CLM03_t)
 249                            workstation)->cpu);
 250 }
 251
 252 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 253                                               void **workstation_list,
 254                                               double *computation_amount,
 255                                               double *communication_amount,
 256                                               double amount, double rate)
 257 {
 258   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 259   return NULL;
 260 }
 261
 262
 263 /* returns an array of network_link_CM02_t */
 264 static xbt_dynar_t ws_get_route(void *src, void *dst)
 265 {
 266   return surf_network_model->extension.
 267       network.get_route(surf_resource_name(src), surf_resource_name(dst));
 268 }
 269
 270 static double ws_get_link_bandwidth(const void *link)
 271 {
 272   return surf_network_model->extension.network.get_link_bandwidth(link);
 273 }
 274
 275 static double ws_get_link_latency(const void *link)
 276 {
 277   return surf_network_model->extension.network.get_link_latency(link);
 278 }
 279
 280 static int ws_link_shared(const void *link)
 281 {
 282   return surf_network_model->extension.network.link_shared(link);
 283 }
 284
 285 static void ws_finalize(void)
 286 {
 287   surf_model_exit(surf_workstation_model);
 288   surf_workstation_model = NULL;
 289 }
 290
 291 static xbt_dict_t ws_get_properties(const void *ws)
 292 {
 293   return surf_resource_properties(((workstation_CLM03_t) ws)->cpu);
 294 }
 295
 296 static surf_action_t ws_action_open(void *workstation, const char* path, const char* mode)
 297 {
 298   void *storage = ((workstation_CLM03_t) workstation)->storage;
 299   return ((surf_resource_t) storage)->model->extension.storage.open(storage, path, mode);
 300 }
 301
 302 static surf_action_t ws_action_close(void *workstation, surf_file_t fp)
 303 {
 304   void *storage = ((workstation_CLM03_t) workstation)->storage;
 305   return ((surf_resource_t) storage)->model->extension.storage.close(storage, fp);
 306 }
 307
 308 static surf_action_t ws_action_read(void *workstation, void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 309 {
 310   void *storage = ((workstation_CLM03_t) workstation)->storage;
 311   return ((surf_resource_t) storage)->model->extension.storage.read(storage, ptr, size, nmemb, stream);
 312 }
 313
 314 static surf_action_t ws_action_write(void *workstation, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 315 {
 316   void *storage = ((workstation_CLM03_t) workstation)->storage;
 317   return ((surf_resource_t) storage)->model->extension.storage.write(storage, ptr, size, nmemb, stream);
 318 }
 319
 320 static surf_action_t ws_action_stat(void *workstation, int fd, void* buf)
 321 {
 322   void *storage = ((workstation_CLM03_t) workstation)->storage;
 323   return ((surf_resource_t) storage)->model->extension.storage.stat(storage, fd, buf);
 324 }
 325
 326 static void surf_workstation_model_init_internal(void)
 327 {
 328   surf_workstation_model = surf_model_init();
 329
 330   surf_workstation_model->name = "Workstation";
 331   surf_workstation_model->action_unref = ws_action_unref;
 332   surf_workstation_model->action_cancel = ws_action_cancel;
 333   surf_workstation_model->action_state_set = ws_action_state_set;
 334
 335   surf_workstation_model->model_private->resource_used = ws_resource_used;
 336   surf_workstation_model->model_private->share_resources =
 337       ws_share_resources;
 338   surf_workstation_model->model_private->update_actions_state =
 339       ws_update_actions_state;
 340   surf_workstation_model->model_private->update_resource_state =
 341       ws_update_resource_state;
 342   surf_workstation_model->model_private->finalize = ws_finalize;
 343
 344   surf_workstation_model->suspend = ws_action_suspend;
 345   surf_workstation_model->resume = ws_action_resume;
 346   surf_workstation_model->is_suspended = ws_action_is_suspended;
 347   surf_workstation_model->set_max_duration = ws_action_set_max_duration;
 348   surf_workstation_model->set_priority = ws_action_set_priority;
 349 #ifdef HAVE_TRACING
 350   surf_workstation_model->set_category = ws_action_set_category;
 351 #endif
 352   surf_workstation_model->get_remains = ws_action_get_remains;
 353 #ifdef HAVE_LATENCY_BOUND_TRACKING
 354   surf_workstation_model->get_latency_limited = ws_get_latency_limited;
 355 #endif
 356
 357   surf_workstation_model->extension.workstation.execute = ws_execute;
 358   surf_workstation_model->extension.workstation.sleep = ws_action_sleep;
 359   surf_workstation_model->extension.workstation.get_state = ws_get_state;
 360   surf_workstation_model->extension.workstation.get_speed = ws_get_speed;
 361   surf_workstation_model->extension.workstation.get_available_speed =
 362       ws_get_available_speed;
 363
 364   surf_workstation_model->extension.workstation.communicate =
 365       ws_communicate;
 366   surf_workstation_model->extension.workstation.get_route = ws_get_route;
 367   surf_workstation_model->extension.workstation.execute_parallel_task =
 368       ws_execute_parallel_task;
 369   surf_workstation_model->extension.workstation.get_link_bandwidth =
 370       ws_get_link_bandwidth;
 371   surf_workstation_model->extension.workstation.get_link_latency =
 372       ws_get_link_latency;
 373   surf_workstation_model->extension.workstation.link_shared =
 374       ws_link_shared;
 375   surf_workstation_model->extension.workstation.get_properties =
 376       ws_get_properties;
 377
 378   surf_workstation_model->extension.workstation.open = ws_action_open;
 379   surf_workstation_model->extension.workstation.close = ws_action_close;
 380   surf_workstation_model->extension.workstation.read = ws_action_read;
 381   surf_workstation_model->extension.workstation.write = ws_action_write;
 382   surf_workstation_model->extension.workstation.stat = ws_action_stat;
 383 }
 384
 385 void surf_workstation_model_init_current_default(void)
 386 {
 387   surf_workstation_model_init_internal();
 388   xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", 1);
 389   surf_cpu_model_init_Cas01();
 390   surf_network_model_init_LegrandVelho();
 391
 392   xbt_dynar_push(model_list, &surf_workstation_model);
 393   sg_platf_postparse_add_cb(create_workstations);
 394 }
 395
 396 void surf_workstation_model_init_compound()
 397 {
 398
 399   xbt_assert(surf_cpu_model, "No CPU model defined yet!");
 400   xbt_assert(surf_network_model, "No network model defined yet!");
 401   surf_workstation_model_init_internal();
 402   xbt_dynar_push(model_list, &surf_workstation_model);
 403   sg_platf_postparse_add_cb(create_workstations);
 404 }