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