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 "storage_private.h"
  12 #include "surf/surf_resource.h"
  13 #include "simgrid/sg_config.h"
  14 #include "workstation_private.h"
  15
  16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  17                                 "Logging specific to the SURF workstation module");
  18
  19 surf_model_t surf_workstation_model = NULL;
  20
  21
  22 void __init_workstation_CLM03(workstation_CLM03_t ws, const char *id, surf_model_t workstation_model)
  23 {
  24   ws->generic_resource.model = workstation_model;
  25   ws->generic_resource.name = xbt_strdup(id);
  26   ws->storage = xbt_lib_get_or_null(storage_lib,id,ROUTING_STORAGE_HOST_LEVEL);
  27   ws->net_elm = xbt_lib_get_or_null(host_lib,id,ROUTING_HOST_LEVEL);
  28
  29   XBT_DEBUG("Create ws %s with %ld mounted disks",id,xbt_dynar_length(ws->storage));
  30   xbt_lib_set(host_lib, id, SURF_WKS_LEVEL, ws);
  31 }
  32
  33 static void workstation_new(sg_platf_host_cbarg_t host)
  34 {
  35   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  36
  37   __init_workstation_CLM03(workstation, host->id, surf_workstation_model);
  38 }
  39
  40
  41 static void ws_parallel_action_cancel(surf_action_t action)
  42 {
  43   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  44 }
  45
  46 static int ws_parallel_action_free(surf_action_t action)
  47 {
  48   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  49   return -1;
  50 }
  51
  52 static int ws_action_unref(surf_action_t action)
  53 {
  54   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
  55     return surf_network_model->action_unref(action);
  56   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
  57     return action->model_obj->action_unref(action);
  58       // previously was: Adrien/Arnaud 6 feb
  59           // surf_cpu_model->action_unref(action);
  60   else if (action->model_obj->type == SURF_MODEL_TYPE_WORKSTATION)
  61     return ws_parallel_action_free(action);
  62   else
  63     DIE_IMPOSSIBLE;
  64   return 0;
  65 }
  66
  67 static void ws_action_cancel(surf_action_t action)
  68 {
  69   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
  70     surf_network_model->action_cancel(action);
  71   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
  72     action->model_obj->action_cancel(action);
  73   else if (action->model_obj->type == SURF_MODEL_TYPE_WORKSTATION)
  74     ws_parallel_action_cancel(action);
  75   else
  76     DIE_IMPOSSIBLE;
  77   return;
  78 }
  79
  80 static void ws_action_state_set(surf_action_t action,
  81                                 e_surf_action_state_t state)
  82 {
  83   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
  84     surf_network_model->action_state_set(action, state);
  85   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
  86     action->model_obj->action_state_set(action, state);
  87   else if (action->model_obj->type == SURF_MODEL_TYPE_WORKSTATION)
  88     surf_action_state_set(action, state);
  89   else
  90     DIE_IMPOSSIBLE;
  91   return;
  92 }
  93
  94
  95 /* -- The callback functions at model_private -- */
  96 /* These callbacks are also used for the vm workstation model. */
  97 int ws_resource_used(void *resource_id)
  98 {
  99   /* This model does not implement parallel tasks */
 100   THROW_IMPOSSIBLE;
 101   return -1;
 102 }
 103
 104 double ws_share_resources(surf_model_t workstation_model, double now)
 105 {
 106   /* Invoke the share_resources() callback of the physical cpu model object and
 107    * the network model objects. */
 108   surf_model_t cpu_model = workstation_model->extension.workstation.cpu_model;
 109   surf_model_t net_model = surf_network_model;
 110
 111   double min_by_cpu = cpu_model->model_private->share_resources(cpu_model, now);
 112   double min_by_net = net_model->model_private->share_resources(net_model, now);
 113
 114   return min(min_by_cpu, min_by_net);
 115 }
 116
 117 void ws_update_actions_state(surf_model_t workstation_model, double now, double delta)
 118 {
 119   return;
 120 }
 121
 122 void ws_update_resource_state(void *id, tmgr_trace_event_t event_type, double value, double date)
 123 {
 124   /* This model does not implement parallel tasks */
 125   THROW_IMPOSSIBLE;
 126 }
 127
 128 void ws_finalize(surf_model_t workstation_model)
 129 {
 130   surf_model_exit(workstation_model);
 131   workstation_model = NULL;
 132 }
 133
 134
 135
 136 static surf_action_t ws_execute(void *workstation, double size)
 137 {
 138   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 139   return cpu->model->extension.cpu.execute(workstation, size);
 140 }
 141
 142 static surf_action_t ws_action_sleep(void *workstation, double duration)
 143 {
 144   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 145   return cpu->model->extension.cpu.sleep(workstation, duration);
 146 }
 147
 148 static void ws_action_suspend(surf_action_t action)
 149 {
 150   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 151     surf_network_model->suspend(action);
 152   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 153     action->model_obj->suspend(action);
 154   else
 155     DIE_IMPOSSIBLE;
 156 }
 157
 158 static void ws_action_resume(surf_action_t action)
 159 {
 160   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 161     surf_network_model->resume(action);
 162   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 163     action->model_obj->resume(action);
 164   else
 165     DIE_IMPOSSIBLE;
 166 }
 167
 168 static int ws_action_is_suspended(surf_action_t action)
 169 {
 170   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 171     return surf_network_model->is_suspended(action);
 172   if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 173     return action->model_obj->is_suspended(action);
 174   DIE_IMPOSSIBLE;
 175   return -1;
 176 }
 177
 178 static void ws_action_set_max_duration(surf_action_t action,
 179                                        double duration)
 180 {
 181   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 182     surf_network_model->set_max_duration(action, duration);
 183   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 184     action->model_obj->set_max_duration(action, duration);
 185   else
 186     DIE_IMPOSSIBLE;
 187 }
 188
 189 static void ws_action_set_priority(surf_action_t action, double priority)
 190 {
 191   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 192     surf_network_model->set_priority(action, priority);
 193   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 194     action->model_obj->set_priority(action, priority);
 195   else
 196     DIE_IMPOSSIBLE;
 197 }
 198
 199 #ifdef HAVE_TRACING
 200 static void ws_action_set_category(surf_action_t action, const char *category)
 201 {
 202   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 203     surf_network_model->set_category(action, category);
 204   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 205     action->model_obj->set_category(action, category);
 206   else
 207     DIE_IMPOSSIBLE;
 208 }
 209 #endif
 210
 211 #ifdef HAVE_LATENCY_BOUND_TRACKING
 212 static int ws_get_latency_limited(surf_action_t action)
 213 {
 214   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 215     return surf_network_model->get_latency_limited(action);
 216   else
 217     return 0;
 218 }
 219 #endif
 220
 221 static double ws_action_get_remains(surf_action_t action)
 222 {
 223   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 224     return surf_network_model->get_remains(action);
 225   if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 226     return action->model_obj->get_remains(action);
 227   DIE_IMPOSSIBLE;
 228   return -1.0;
 229 }
 230
 231 static surf_action_t ws_communicate(void *workstation_src,
 232                                     void *workstation_dst, double size,
 233                                     double rate)
 234 {
 235   workstation_CLM03_t src = surf_workstation_resource_priv(workstation_src);
 236   workstation_CLM03_t dst = surf_workstation_resource_priv(workstation_dst);
 237   return surf_network_model->extension.network.
 238       communicate(src->net_elm,
 239                   dst->net_elm, size, rate);
 240 }
 241
 242 static e_surf_resource_state_t ws_get_state(void *workstation)
 243 {
 244   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 245   return cpu->model->extension.cpu.get_state(workstation);
 246 }
 247
 248 static double ws_get_speed(void *workstation, double load)
 249 {
 250   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 251   return cpu->model->extension.cpu.get_speed(workstation, load);
 252 }
 253
 254 static double ws_get_available_speed(void *workstation)
 255 {
 256   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 257   return cpu->model->extension.cpu.get_available_speed(workstation);
 258 }
 259
 260 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 261                                               void **workstation_list,
 262                                               double *computation_amount,
 263                                               double *communication_amount,
 264                                               double rate)
 265 {
 266 #define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0)
 267   if ((workstation_nb == 1)
 268       && (cost_or_zero(communication_amount, 0) == 0.0))
 269     return ws_execute(workstation_list[0], computation_amount[0]);
 270   else if ((workstation_nb == 1)
 271            && (cost_or_zero(computation_amount, 0) == 0.0))
 272     return ws_communicate(workstation_list[0], workstation_list[0],communication_amount[0], rate);
 273   else if ((workstation_nb == 2)
 274              && (cost_or_zero(computation_amount, 0) == 0.0)
 275              && (cost_or_zero(computation_amount, 1) == 0.0)) {
 276     int i,nb = 0;
 277     double value = 0.0;
 278
 279     for (i = 0; i < workstation_nb * workstation_nb; i++) {
 280       if (cost_or_zero(communication_amount, i) > 0.0) {
 281         nb++;
 282         value = cost_or_zero(communication_amount, i);
 283       }
 284     }
 285     if (nb == 1)
 286       return ws_communicate(workstation_list[0], workstation_list[1],value, rate);
 287   }
 288 #undef cost_or_zero
 289
 290   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 291   return NULL;
 292 }
 293
 294
 295 /* returns an array of network_link_CM02_t */
 296 static xbt_dynar_t ws_get_route(void *workstation_src, void *workstation_dst)
 297 {
 298   XBT_DEBUG("ws_get_route");
 299   workstation_CLM03_t src = surf_workstation_resource_priv(workstation_src);
 300   workstation_CLM03_t dst = surf_workstation_resource_priv(workstation_dst);
 301   return surf_network_model->extension.
 302       network.get_route(src->net_elm,
 303                   dst->net_elm);
 304 }
 305
 306 static double ws_get_link_bandwidth(const void *link)
 307 {
 308   return surf_network_model->extension.network.get_link_bandwidth(link);
 309 }
 310
 311 static double ws_get_link_latency(const void *link)
 312 {
 313   return surf_network_model->extension.network.get_link_latency(link);
 314 }
 315
 316 static int ws_link_shared(const void *link)
 317 {
 318   return surf_network_model->extension.network.link_shared(link);
 319 }
 320
 321 static xbt_dict_t ws_get_properties(const void *ws)
 322 {
 323   return surf_resource_properties(surf_cpu_resource_priv(ws));
 324 }
 325
 326 static storage_t find_storage_on_mount_list(void *workstation,const char* storage)
 327 {
 328   storage_t st = NULL;
 329   s_mount_t mnt;
 330   unsigned int cursor;
 331   workstation_CLM03_t ws = (workstation_CLM03_t) surf_workstation_resource_priv(workstation);
 332   xbt_dynar_t storage_list = ws->storage;
 333
 334   XBT_DEBUG("Search for storage name '%s' on '%s'",storage,ws->generic_resource.name);
 335   xbt_dynar_foreach(storage_list,cursor,mnt)
 336   {
 337     XBT_DEBUG("See '%s'",mnt.name);
 338     if(!strcmp(storage,mnt.name)){
 339       st = mnt.id;
 340       break;
 341     }
 342   }
 343   if(!st) xbt_die("Can't find mount '%s' for '%s'",storage,ws->generic_resource.name);
 344   return st;
 345 }
 346
 347 static surf_action_t ws_action_open(void *workstation, const char* mount, const char* path, const char* mode)
 348 {
 349   storage_t st = find_storage_on_mount_list(workstation, mount);
 350   XBT_DEBUG("OPEN on disk '%s'",st->generic_resource.name);
 351   surf_model_t model = st->generic_resource.model;
 352   return model->extension.storage.open(st, mount, path, mode);
 353 }
 354
 355 static surf_action_t ws_action_close(void *workstation, surf_file_t fp)
 356 {
 357   storage_t st = find_storage_on_mount_list(workstation, fp->storage);
 358   XBT_DEBUG("CLOSE on disk '%s'",st->generic_resource.name);
 359   surf_model_t model = st->generic_resource.model;
 360   return model->extension.storage.close(st, fp);
 361 }
 362
 363 static surf_action_t ws_action_read(void *workstation, void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 364 {
 365   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 366   XBT_DEBUG("READ on disk '%s'",st->generic_resource.name);
 367   surf_model_t model = st->generic_resource.model;
 368   return model->extension.storage.read(st, ptr, (double)size, nmemb, stream);
 369 }
 370
 371 static surf_action_t ws_action_write(void *workstation, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 372 {
 373   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 374   XBT_DEBUG("WRITE on disk '%s'",st->generic_resource.name);
 375   surf_model_t model = st->generic_resource.model;
 376   return model->extension.storage.write(st,  ptr, size, nmemb, stream);
 377 }
 378
 379 static surf_action_t ws_action_stat(void *workstation, surf_file_t stream)
 380 {
 381   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 382   XBT_DEBUG("STAT on disk '%s'",st->generic_resource.name);
 383   surf_model_t model = st->generic_resource.model;
 384   return model->extension.storage.stat(st,  stream);
 385 }
 386
 387 static surf_action_t ws_action_unlink(void *workstation, surf_file_t stream)
 388 {
 389   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 390   XBT_DEBUG("UNLINK on disk '%s'",st->generic_resource.name);
 391   surf_model_t model = st->generic_resource.model;
 392   return model->extension.storage.unlink(st,  stream);
 393 }
 394
 395 static surf_action_t ws_action_ls(void *workstation, const char* mount, const char *path)
 396 {
 397   XBT_DEBUG("LS on mount '%s' and file '%s'",mount, path);
 398   storage_t st = find_storage_on_mount_list(workstation, mount);
 399   surf_model_t model = st->generic_resource.model;
 400   return model->extension.storage.ls(st, path);
 401 }
 402
 403 static void surf_workstation_model_init_internal(void)
 404 {
 405   surf_model_t model = surf_model_init();
 406
 407   model->name = "Workstation";
 408   model->type = SURF_MODEL_TYPE_WORKSTATION;
 409   model->action_unref     = ws_action_unref;
 410   model->action_cancel    = ws_action_cancel;
 411   model->action_state_set = ws_action_state_set;
 412
 413   model->model_private->resource_used         = ws_resource_used;
 414   model->model_private->share_resources       = ws_share_resources;
 415   model->model_private->update_actions_state  = ws_update_actions_state;
 416   model->model_private->update_resource_state = ws_update_resource_state;
 417   model->model_private->finalize              = ws_finalize;
 418
 419   model->suspend          = ws_action_suspend;
 420   model->resume           = ws_action_resume;
 421   model->is_suspended     = ws_action_is_suspended;
 422   model->set_max_duration = ws_action_set_max_duration;
 423   model->set_priority     = ws_action_set_priority;
 424   #ifdef HAVE_TRACING
 425   model->set_category     = ws_action_set_category;
 426   #endif
 427   model->get_remains      = ws_action_get_remains;
 428   #ifdef HAVE_LATENCY_BOUND_TRACKING
 429   model->get_latency_limited = ws_get_latency_limited;
 430   #endif
 431
 432   /* For VM support, we have a surf cpu model object for each workstation model
 433    * object. The physical workstation model object has the cpu model object of
 434    * the physical machine layer. */
 435   model->extension.workstation.cpu_model = surf_cpu_model_pm;
 436
 437   model->extension.workstation.execute   = ws_execute;
 438   model->extension.workstation.sleep     = ws_action_sleep;
 439   model->extension.workstation.get_state = ws_get_state;
 440   model->extension.workstation.get_speed = ws_get_speed;
 441   model->extension.workstation.get_available_speed = ws_get_available_speed;
 442
 443   model->extension.workstation.communicate           = ws_communicate;
 444   model->extension.workstation.get_route             = ws_get_route;
 445   model->extension.workstation.execute_parallel_task = ws_execute_parallel_task;
 446   model->extension.workstation.get_link_bandwidth    = ws_get_link_bandwidth;
 447   model->extension.workstation.get_link_latency      = ws_get_link_latency;
 448   model->extension.workstation.link_shared           = ws_link_shared;
 449   model->extension.workstation.get_properties        = ws_get_properties;
 450
 451   model->extension.workstation.open   = ws_action_open;
 452   model->extension.workstation.close  = ws_action_close;
 453   model->extension.workstation.read   = ws_action_read;
 454   model->extension.workstation.write  = ws_action_write;
 455   model->extension.workstation.stat   = ws_action_stat;
 456   model->extension.workstation.unlink = ws_action_unlink;
 457   model->extension.workstation.ls     = ws_action_ls;
 458
 459   surf_workstation_model = model;
 460 }
 461
 462 void surf_workstation_model_init_current_default(void)
 463 {
 464
 465   surf_workstation_model_init_internal();
 466
 467   xbt_cfg_setdefault_int(_sg_cfg_set, "network/crosstraffic", 1);
 468   surf_cpu_model_init_Cas01();
 469   surf_network_model_init_LegrandVelho();
 470
 471   xbt_dynar_push(model_list, &surf_workstation_model);
 472   xbt_dynar_push(model_list_invoke, &surf_workstation_model);
 473   sg_platf_host_add_cb(workstation_new);
 474 //  sg_platf_postparse_add_cb(create_workstations);
 475 }
 476
 477 void surf_workstation_model_init_compound()
 478 {
 479
 480   xbt_assert(surf_cpu_model_pm, "No CPU model defined yet!");
 481   xbt_assert(surf_network_model, "No network model defined yet!");
 482   surf_workstation_model_init_internal();
 483   xbt_dynar_push(model_list, &surf_workstation_model);
 484   xbt_dynar_push(model_list_invoke, &surf_workstation_model);
 485   sg_platf_host_add_cb(workstation_new);
 486 //  sg_platf_postparse_add_cb(create_workstations);
 487 }