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)
  23 {
  24   ws->generic_resource.model = surf_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);
  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   XBT_INFO("%p %s min_by_cpu, %s %f min_by_net %f", workstation_model, cpu_model->name, min_by_cpu, net_model->name, min_by_net);
 115
 116   if (min_by_cpu >= 0.0 && min_by_net >= 0.0)
 117     return min(min_by_cpu, min_by_net);
 118   else if (min_by_cpu >= 0.0)
 119     return min_by_cpu;
 120   else if (min_by_net >= 0.0)
 121     return min_by_net;
 122   else
 123     return min_by_cpu;  /* probably min_by_cpu == min_by_net == -1 */
 124 }
 125
 126 void ws_update_actions_state(surf_model_t workstation_model, double now, double delta)
 127 {
 128   return;
 129 }
 130
 131 void ws_update_resource_state(void *id, tmgr_trace_event_t event_type, double value, double date)
 132 {
 133   /* This model does not implement parallel tasks */
 134   THROW_IMPOSSIBLE;
 135 }
 136
 137 void ws_finalize(surf_model_t workstation_model)
 138 {
 139   surf_model_exit(workstation_model);
 140   workstation_model = NULL;
 141 }
 142
 143
 144
 145 surf_action_t ws_execute(void *workstation, double size)
 146 {
 147   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 148   return cpu->model->extension.cpu.execute(workstation, size);
 149 }
 150
 151 static surf_action_t ws_action_sleep(void *workstation, double duration)
 152 {
 153   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 154   return cpu->model->extension.cpu.sleep(workstation, duration);
 155 }
 156
 157 static void ws_action_suspend(surf_action_t action)
 158 {
 159   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 160     surf_network_model->suspend(action);
 161   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 162     action->model_obj->suspend(action);
 163   else
 164     DIE_IMPOSSIBLE;
 165 }
 166
 167 static void ws_action_resume(surf_action_t action)
 168 {
 169   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 170     surf_network_model->resume(action);
 171   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 172     action->model_obj->resume(action);
 173   else
 174     DIE_IMPOSSIBLE;
 175 }
 176
 177 static int ws_action_is_suspended(surf_action_t action)
 178 {
 179   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 180     return surf_network_model->is_suspended(action);
 181   if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 182     return action->model_obj->is_suspended(action);
 183   DIE_IMPOSSIBLE;
 184   return -1;
 185 }
 186
 187 static void ws_action_set_max_duration(surf_action_t action,
 188                                        double duration)
 189 {
 190   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 191     surf_network_model->set_max_duration(action, duration);
 192   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 193     action->model_obj->set_max_duration(action, duration);
 194   else
 195     DIE_IMPOSSIBLE;
 196 }
 197
 198 void ws_action_set_priority(surf_action_t action, double priority)
 199 {
 200   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 201     surf_network_model->set_priority(action, priority);
 202   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 203     action->model_obj->set_priority(action, priority);
 204   else
 205     DIE_IMPOSSIBLE;
 206 }
 207
 208 #ifdef HAVE_TRACING
 209 static void ws_action_set_category(surf_action_t action, const char *category)
 210 {
 211   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 212     surf_network_model->set_category(action, category);
 213   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 214     action->model_obj->set_category(action, category);
 215   else
 216     DIE_IMPOSSIBLE;
 217 }
 218 #endif
 219
 220 #ifdef HAVE_LATENCY_BOUND_TRACKING
 221 static int ws_get_latency_limited(surf_action_t action)
 222 {
 223   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 224     return surf_network_model->get_latency_limited(action);
 225   else
 226     return 0;
 227 }
 228 #endif
 229
 230 static double ws_action_get_remains(surf_action_t action)
 231 {
 232   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 233     return surf_network_model->get_remains(action);
 234   if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 235     return action->model_obj->get_remains(action);
 236   DIE_IMPOSSIBLE;
 237   return -1.0;
 238 }
 239
 240 static surf_action_t ws_communicate(void *workstation_src,
 241                                     void *workstation_dst, double size,
 242                                     double rate)
 243 {
 244   workstation_CLM03_t src = surf_workstation_resource_priv(workstation_src);
 245   workstation_CLM03_t dst = surf_workstation_resource_priv(workstation_dst);
 246   return surf_network_model->extension.network.
 247       communicate(src->net_elm,
 248                   dst->net_elm, size, rate);
 249 }
 250
 251 e_surf_resource_state_t ws_get_state(void *workstation)
 252 {
 253   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 254   return cpu->model->extension.cpu.get_state(workstation);
 255 }
 256
 257 static double ws_get_speed(void *workstation, double load)
 258 {
 259   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 260   return cpu->model->extension.cpu.get_speed(workstation, load);
 261 }
 262
 263 static double ws_get_available_speed(void *workstation)
 264 {
 265   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 266   return cpu->model->extension.cpu.get_available_speed(workstation);
 267 }
 268
 269 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 270                                               void **workstation_list,
 271                                               double *computation_amount,
 272                                               double *communication_amount,
 273                                               double rate)
 274 {
 275 #define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0)
 276   if ((workstation_nb == 1)
 277       && (cost_or_zero(communication_amount, 0) == 0.0))
 278     return ws_execute(workstation_list[0], computation_amount[0]);
 279   else if ((workstation_nb == 1)
 280            && (cost_or_zero(computation_amount, 0) == 0.0))
 281     return ws_communicate(workstation_list[0], workstation_list[0],communication_amount[0], rate);
 282   else if ((workstation_nb == 2)
 283              && (cost_or_zero(computation_amount, 0) == 0.0)
 284              && (cost_or_zero(computation_amount, 1) == 0.0)) {
 285     int i,nb = 0;
 286     double value = 0.0;
 287
 288     for (i = 0; i < workstation_nb * workstation_nb; i++) {
 289       if (cost_or_zero(communication_amount, i) > 0.0) {
 290         nb++;
 291         value = cost_or_zero(communication_amount, i);
 292       }
 293     }
 294     if (nb == 1)
 295       return ws_communicate(workstation_list[0], workstation_list[1],value, rate);
 296   }
 297 #undef cost_or_zero
 298
 299   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 300   return NULL;
 301 }
 302
 303
 304 /* returns an array of network_link_CM02_t */
 305 static xbt_dynar_t ws_get_route(void *workstation_src, void *workstation_dst)
 306 {
 307   XBT_DEBUG("ws_get_route");
 308   workstation_CLM03_t src = surf_workstation_resource_priv(workstation_src);
 309   workstation_CLM03_t dst = surf_workstation_resource_priv(workstation_dst);
 310   return surf_network_model->extension.
 311       network.get_route(src->net_elm,
 312                   dst->net_elm);
 313 }
 314
 315 static double ws_get_link_bandwidth(const void *link)
 316 {
 317   return surf_network_model->extension.network.get_link_bandwidth(link);
 318 }
 319
 320 static double ws_get_link_latency(const void *link)
 321 {
 322   return surf_network_model->extension.network.get_link_latency(link);
 323 }
 324
 325 static int ws_link_shared(const void *link)
 326 {
 327   return surf_network_model->extension.network.link_shared(link);
 328 }
 329
 330 static xbt_dict_t ws_get_properties(const void *ws)
 331 {
 332   return surf_resource_properties(surf_cpu_resource_priv(ws));
 333 }
 334
 335 static storage_t find_storage_on_mount_list(void *workstation,const char* storage)
 336 {
 337   storage_t st = NULL;
 338   s_mount_t mnt;
 339   unsigned int cursor;
 340   workstation_CLM03_t ws = (workstation_CLM03_t) surf_workstation_resource_priv(workstation);
 341   xbt_dynar_t storage_list = ws->storage;
 342
 343   XBT_DEBUG("Search for storage name '%s' on '%s'",storage,ws->generic_resource.name);
 344   xbt_dynar_foreach(storage_list,cursor,mnt)
 345   {
 346     XBT_DEBUG("See '%s'",mnt.name);
 347     if(!strcmp(storage,mnt.name)){
 348       st = mnt.id;
 349       break;
 350     }
 351   }
 352   if(!st) xbt_die("Can't find mount '%s' for '%s'",storage,ws->generic_resource.name);
 353   return st;
 354 }
 355
 356 static surf_action_t ws_action_open(void *workstation, const char* mount, const char* path, const char* mode)
 357 {
 358   storage_t st = find_storage_on_mount_list(workstation, mount);
 359   XBT_DEBUG("OPEN on disk '%s'",st->generic_resource.name);
 360   surf_model_t model = st->generic_resource.model;
 361   return model->extension.storage.open(st, mount, path, mode);
 362 }
 363
 364 static surf_action_t ws_action_close(void *workstation, surf_file_t fp)
 365 {
 366   storage_t st = find_storage_on_mount_list(workstation, fp->storage);
 367   XBT_DEBUG("CLOSE on disk '%s'",st->generic_resource.name);
 368   surf_model_t model = st->generic_resource.model;
 369   return model->extension.storage.close(st, fp);
 370 }
 371
 372 static surf_action_t ws_action_read(void *workstation, void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 373 {
 374   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 375   XBT_DEBUG("READ on disk '%s'",st->generic_resource.name);
 376   surf_model_t model = st->generic_resource.model;
 377   return model->extension.storage.read(st, ptr, (double)size, nmemb, stream);
 378 }
 379
 380 static surf_action_t ws_action_write(void *workstation, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 381 {
 382   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 383   XBT_DEBUG("WRITE on disk '%s'",st->generic_resource.name);
 384   surf_model_t model = st->generic_resource.model;
 385   return model->extension.storage.write(st,  ptr, size, nmemb, stream);
 386 }
 387
 388 static surf_action_t ws_action_stat(void *workstation, surf_file_t stream)
 389 {
 390   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 391   XBT_DEBUG("STAT on disk '%s'",st->generic_resource.name);
 392   surf_model_t model = st->generic_resource.model;
 393   return model->extension.storage.stat(st,  stream);
 394 }
 395
 396 static surf_action_t ws_action_unlink(void *workstation, surf_file_t stream)
 397 {
 398   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 399   XBT_DEBUG("UNLINK on disk '%s'",st->generic_resource.name);
 400   surf_model_t model = st->generic_resource.model;
 401   return model->extension.storage.unlink(st,  stream);
 402 }
 403
 404 static surf_action_t ws_action_ls(void *workstation, const char* mount, const char *path)
 405 {
 406   XBT_DEBUG("LS on mount '%s' and file '%s'",mount, path);
 407   storage_t st = find_storage_on_mount_list(workstation, mount);
 408   surf_model_t model = st->generic_resource.model;
 409   return model->extension.storage.ls(st, path);
 410 }
 411
 412 static void surf_workstation_model_init_internal(void)
 413 {
 414   surf_model_t model = surf_model_init();
 415
 416   model->name = "Workstation";
 417   model->type = SURF_MODEL_TYPE_WORKSTATION;
 418   model->action_unref     = ws_action_unref;
 419   model->action_cancel    = ws_action_cancel;
 420   model->action_state_set = ws_action_state_set;
 421
 422   model->model_private->resource_used         = ws_resource_used;
 423   model->model_private->share_resources       = ws_share_resources;
 424   model->model_private->update_actions_state  = ws_update_actions_state;
 425   model->model_private->update_resource_state = ws_update_resource_state;
 426   model->model_private->finalize              = ws_finalize;
 427
 428   model->suspend          = ws_action_suspend;
 429   model->resume           = ws_action_resume;
 430   model->is_suspended     = ws_action_is_suspended;
 431   model->set_max_duration = ws_action_set_max_duration;
 432   model->set_priority     = ws_action_set_priority;
 433   #ifdef HAVE_TRACING
 434   model->set_category     = ws_action_set_category;
 435   #endif
 436   model->get_remains      = ws_action_get_remains;
 437   #ifdef HAVE_LATENCY_BOUND_TRACKING
 438   model->get_latency_limited = ws_get_latency_limited;
 439   #endif
 440
 441   /* For VM support, we have a surf cpu model object for each workstation model
 442    * object. The physical workstation model object has the cpu model object of
 443    * the physical machine layer. */
 444   xbt_assert(surf_cpu_model_pm);
 445   model->extension.workstation.cpu_model = surf_cpu_model_pm;
 446
 447   model->extension.workstation.execute   = ws_execute;
 448   model->extension.workstation.sleep     = ws_action_sleep;
 449   model->extension.workstation.get_state = ws_get_state;
 450   model->extension.workstation.get_speed = ws_get_speed;
 451   model->extension.workstation.get_available_speed = ws_get_available_speed;
 452
 453   model->extension.workstation.communicate           = ws_communicate;
 454   model->extension.workstation.get_route             = ws_get_route;
 455   model->extension.workstation.execute_parallel_task = ws_execute_parallel_task;
 456   model->extension.workstation.get_link_bandwidth    = ws_get_link_bandwidth;
 457   model->extension.workstation.get_link_latency      = ws_get_link_latency;
 458   model->extension.workstation.link_shared           = ws_link_shared;
 459   model->extension.workstation.get_properties        = ws_get_properties;
 460
 461   model->extension.workstation.open   = ws_action_open;
 462   model->extension.workstation.close  = ws_action_close;
 463   model->extension.workstation.read   = ws_action_read;
 464   model->extension.workstation.write  = ws_action_write;
 465   model->extension.workstation.stat   = ws_action_stat;
 466   model->extension.workstation.unlink = ws_action_unlink;
 467   model->extension.workstation.ls     = ws_action_ls;
 468
 469   surf_workstation_model = model;
 470 }
 471
 472 void surf_workstation_model_init_current_default(void)
 473 {
 474   xbt_cfg_setdefault_int(_sg_cfg_set, "network/crosstraffic", 1);
 475   surf_cpu_model_init_Cas01();
 476   surf_network_model_init_LegrandVelho();
 477
 478   /* surf_cpu_mode_pm and surf_network_model must be initialized in advance. */
 479   xbt_assert(surf_cpu_model_pm);
 480   xbt_assert(surf_network_model);
 481   surf_workstation_model_init_internal();
 482
 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 }
 488
 489 void surf_workstation_model_init_compound()
 490 {
 491   xbt_assert(surf_cpu_model_pm, "No CPU model defined yet!");
 492   xbt_assert(surf_network_model, "No network model defined yet!");
 493
 494   surf_workstation_model_init_internal();
 495   xbt_dynar_push(model_list, &surf_workstation_model);
 496   xbt_dynar_push(model_list_invoke, &surf_workstation_model);
 497   sg_platf_host_add_cb(workstation_new);
 498 //  sg_platf_postparse_add_cb(create_workstations);
 499 }