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
  15 typedef struct workstation_CLM03 {
  16   s_surf_resource_t generic_resource;   /* Must remain first to add this to a trace */
  17   void *net_elm;
  18   xbt_dynar_t 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 void workstation_new(sg_platf_host_cbarg_t host)
  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(host->id);
  32   workstation->storage = xbt_lib_get_or_null(storage_lib,host->id,ROUTING_STORAGE_HOST_LEVEL);
  33   workstation->net_elm = xbt_lib_get_or_null(host_lib,host->id,ROUTING_HOST_LEVEL);
  34   XBT_DEBUG("Create workstation %s with %ld mounted disks",host->id,xbt_dynar_length(workstation->storage));
  35   xbt_lib_set(host_lib, host->id, SURF_WKS_LEVEL, workstation);
  36 }
  37
  38 static int ws_resource_used(void *resource_id)
  39 {
  40   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  41   return -1;
  42 }
  43
  44 static void ws_parallel_action_cancel(surf_action_t action)
  45 {
  46   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  47 }
  48
  49 static int ws_parallel_action_free(surf_action_t action)
  50 {
  51   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  52   return -1;
  53 }
  54
  55 static int ws_action_unref(surf_action_t action)
  56 {
  57   if (action->model_type == surf_network_model)
  58     return surf_network_model->action_unref(action);
  59   else if (action->model_type == surf_cpu_model)
  60     return surf_cpu_model->action_unref(action);
  61   else if (action->model_type == surf_workstation_model)
  62     return ws_parallel_action_free(action);
  63   else
  64     DIE_IMPOSSIBLE;
  65   return 0;
  66 }
  67
  68 static void ws_action_cancel(surf_action_t action)
  69 {
  70   if (action->model_type == surf_network_model)
  71     surf_network_model->action_cancel(action);
  72   else if (action->model_type == surf_cpu_model)
  73     surf_cpu_model->action_cancel(action);
  74   else if (action->model_type == surf_workstation_model)
  75     ws_parallel_action_cancel(action);
  76   else
  77     DIE_IMPOSSIBLE;
  78   return;
  79 }
  80
  81 static void ws_action_state_set(surf_action_t action,
  82                                 e_surf_action_state_t state)
  83 {
  84   if (action->model_type == surf_network_model)
  85     surf_network_model->action_state_set(action, state);
  86   else if (action->model_type == surf_cpu_model)
  87     surf_cpu_model->action_state_set(action, state);
  88   else if (action->model_type == surf_workstation_model)
  89     surf_action_state_set(action, state);
  90   else
  91     DIE_IMPOSSIBLE;
  92   return;
  93 }
  94
  95 static double ws_share_resources(double now)
  96 {
  97   return -1.0;
  98 }
  99
 100 static void ws_update_actions_state(double now, double delta)
 101 {
 102   return;
 103 }
 104
 105 static void ws_update_resource_state(void *id,
 106                                      tmgr_trace_event_t event_type,
 107                                      double value, double date)
 108 {
 109   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 110 }
 111
 112 static surf_action_t ws_execute(void *workstation, double size)
 113 {
 114   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 115   return cpu->model->extension.cpu.execute(workstation, size);
 116 }
 117
 118 static surf_action_t ws_action_sleep(void *workstation, double duration)
 119 {
 120   return surf_cpu_model->extension.cpu.
 121       sleep(workstation, duration);
 122 }
 123
 124 static void ws_action_suspend(surf_action_t action)
 125 {
 126   if (action->model_type == surf_network_model)
 127     surf_network_model->suspend(action);
 128   else if (action->model_type == surf_cpu_model)
 129     surf_cpu_model->suspend(action);
 130   else
 131     DIE_IMPOSSIBLE;
 132 }
 133
 134 static void ws_action_resume(surf_action_t action)
 135 {
 136   if (action->model_type == surf_network_model)
 137     surf_network_model->resume(action);
 138   else if (action->model_type == surf_cpu_model)
 139     surf_cpu_model->resume(action);
 140   else
 141     DIE_IMPOSSIBLE;
 142 }
 143
 144 static int ws_action_is_suspended(surf_action_t action)
 145 {
 146   if (action->model_type == surf_network_model)
 147     return surf_network_model->is_suspended(action);
 148   if (action->model_type == surf_cpu_model)
 149     return surf_cpu_model->is_suspended(action);
 150   DIE_IMPOSSIBLE;
 151   return -1;
 152 }
 153
 154 static void ws_action_set_max_duration(surf_action_t action,
 155                                        double duration)
 156 {
 157   if (action->model_type == surf_network_model)
 158     surf_network_model->set_max_duration(action, duration);
 159   else if (action->model_type == surf_cpu_model)
 160     surf_cpu_model->set_max_duration(action, duration);
 161   else
 162     DIE_IMPOSSIBLE;
 163 }
 164
 165 static void ws_action_set_priority(surf_action_t action, double priority)
 166 {
 167   if (action->model_type == surf_network_model)
 168     surf_network_model->set_priority(action, priority);
 169   else if (action->model_type == surf_cpu_model)
 170     surf_cpu_model->set_priority(action, priority);
 171   else
 172     DIE_IMPOSSIBLE;
 173 }
 174
 175 #ifdef HAVE_TRACING
 176 static void ws_action_set_category(surf_action_t action, const char *category)
 177 {
 178   if (action->model_type == surf_network_model)
 179     surf_network_model->set_category(action, category);
 180   else if (action->model_type == surf_cpu_model)
 181     surf_cpu_model->set_category(action, category);
 182   else
 183     DIE_IMPOSSIBLE;
 184 }
 185 #endif
 186
 187 #ifdef HAVE_LATENCY_BOUND_TRACKING
 188 static int ws_get_latency_limited(surf_action_t action)
 189 {
 190   if (action->model_type == surf_network_model)
 191     return surf_network_model->get_latency_limited(action);
 192   else
 193     return 0;
 194 }
 195 #endif
 196
 197 static double ws_action_get_remains(surf_action_t action)
 198 {
 199   if (action->model_type == surf_network_model)
 200     return surf_network_model->get_remains(action);
 201   if (action->model_type == surf_cpu_model)
 202     return surf_cpu_model->get_remains(action);
 203   DIE_IMPOSSIBLE;
 204   return -1.0;
 205 }
 206
 207 static surf_action_t ws_communicate(void *workstation_src,
 208                                     void *workstation_dst, double size,
 209                                     double rate)
 210 {
 211   workstation_CLM03_t src = surf_workstation_resource_priv(workstation_src);
 212   workstation_CLM03_t dst = surf_workstation_resource_priv(workstation_dst);
 213   return surf_network_model->extension.network.
 214       communicate(src->net_elm,
 215                   dst->net_elm, size, rate);
 216 }
 217
 218 static e_surf_resource_state_t ws_get_state(void *workstation)
 219 {
 220   return surf_cpu_model->extension.cpu.
 221       get_state(workstation);
 222 }
 223
 224 static double ws_get_speed(void *workstation, double load)
 225 {
 226   return surf_cpu_model->extension.cpu.
 227       get_speed(workstation, load);
 228 }
 229
 230 static int ws_get_core(void *workstation)
 231 {
 232   return surf_cpu_model->extension.cpu.
 233       get_core(workstation);
 234 }
 235
 236
 237
 238 static double ws_get_available_speed(void *workstation)
 239 {
 240   return surf_cpu_model->extension.cpu.
 241       get_available_speed(workstation);
 242 }
 243
 244 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 245                                               void **workstation_list,
 246                                               double *computation_amount,
 247                                               double *communication_amount,
 248                                               double rate)
 249 {
 250 #define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0)
 251   if ((workstation_nb == 1)
 252       && (cost_or_zero(communication_amount, 0) == 0.0))
 253     return ws_execute(workstation_list[0], computation_amount[0]);
 254   else if ((workstation_nb == 1)
 255            && (cost_or_zero(computation_amount, 0) == 0.0))
 256     return ws_communicate(workstation_list[0], workstation_list[0],communication_amount[0], rate);
 257   else if ((workstation_nb == 2)
 258              && (cost_or_zero(computation_amount, 0) == 0.0)
 259              && (cost_or_zero(computation_amount, 1) == 0.0)) {
 260     int i,nb = 0;
 261     double value = 0.0;
 262
 263     for (i = 0; i < workstation_nb * workstation_nb; i++) {
 264       if (cost_or_zero(communication_amount, i) > 0.0) {
 265         nb++;
 266         value = cost_or_zero(communication_amount, i);
 267       }
 268     }
 269     if (nb == 1)
 270       return ws_communicate(workstation_list[0], workstation_list[1],value, rate);
 271   }
 272 #undef cost_or_zero
 273
 274   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 275   return NULL;
 276 }
 277
 278
 279 /* returns an array of network_link_CM02_t */
 280 static xbt_dynar_t ws_get_route(void *workstation_src, void *workstation_dst)
 281 {
 282   XBT_DEBUG("ws_get_route");
 283   workstation_CLM03_t src = surf_workstation_resource_priv(workstation_src);
 284   workstation_CLM03_t dst = surf_workstation_resource_priv(workstation_dst);
 285   return surf_network_model->extension.
 286       network.get_route(src->net_elm,
 287                   dst->net_elm);
 288 }
 289
 290 static double ws_get_link_bandwidth(const void *link)
 291 {
 292   return surf_network_model->extension.network.get_link_bandwidth(link);
 293 }
 294
 295 static double ws_get_link_latency(const void *link)
 296 {
 297   return surf_network_model->extension.network.get_link_latency(link);
 298 }
 299
 300 static int ws_link_shared(const void *link)
 301 {
 302   return surf_network_model->extension.network.link_shared(link);
 303 }
 304
 305 static void ws_finalize(void)
 306 {
 307   surf_model_exit(surf_workstation_model);
 308   surf_workstation_model = NULL;
 309 }
 310
 311 static xbt_dict_t ws_get_properties(const void *ws)
 312 {
 313   return surf_resource_properties(surf_cpu_resource_priv(ws));
 314 }
 315
 316 static storage_t find_storage_on_mount_list(void *workstation,const char* mount)
 317 {
 318   storage_t st = NULL;
 319   s_mount_t mnt;
 320   unsigned int cursor;
 321   workstation_CLM03_t ws = (workstation_CLM03_t) surf_workstation_resource_priv(workstation);
 322   xbt_dynar_t storage_list = ws->storage;
 323
 324   XBT_DEBUG("Search for storage name '%s' on '%s'",mount,ws->generic_resource.name);
 325   xbt_dynar_foreach(storage_list,cursor,mnt)
 326   {
 327     XBT_DEBUG("See '%s'",mnt.name);
 328     if(!strcmp(mount,mnt.name)){
 329       st = mnt.id;
 330       break;
 331     }
 332   }
 333   if(!st) xbt_die("Can't find mount '%s' for '%s'",mount,ws->generic_resource.name);
 334   return st;
 335 }
 336
 337 static surf_action_t ws_action_open(void *workstation, const char* mount,
 338                                     const char* path)
 339 {
 340   storage_t st = find_storage_on_mount_list(workstation, mount);
 341   XBT_DEBUG("OPEN on disk '%s'",st->generic_resource.name);
 342   surf_model_t model = st->generic_resource.model;
 343   return model->extension.storage.open(st, mount, path);
 344 }
 345
 346 static surf_action_t ws_action_close(void *workstation, surf_file_t fd)
 347 {
 348   storage_t st = find_storage_on_mount_list(workstation, fd->mount);
 349   XBT_DEBUG("CLOSE on disk '%s'",st->generic_resource.name);
 350   surf_model_t model = st->generic_resource.model;
 351   return model->extension.storage.close(st, fd);
 352 }
 353
 354 static surf_action_t ws_action_read(void *workstation, size_t size,
 355                                     surf_file_t fd)
 356 {
 357   storage_t st = find_storage_on_mount_list(workstation, fd->mount);
 358   XBT_DEBUG("READ on disk '%s'",st->generic_resource.name);
 359   surf_model_t model = st->generic_resource.model;
 360   return model->extension.storage.read(st, size, fd);
 361 }
 362
 363 static surf_action_t ws_action_write(void *workstation, size_t size,
 364                                      surf_file_t fd)
 365 {
 366   storage_t st = find_storage_on_mount_list(workstation, fd->mount);
 367   XBT_DEBUG("WRITE on disk '%s'",st->generic_resource.name);
 368   surf_model_t model = st->generic_resource.model;
 369   return model->extension.storage.write(st, size, fd);
 370 }
 371
 372 static int ws_file_unlink(void *workstation, surf_file_t fd)
 373 {
 374   if (!fd){
 375     XBT_WARN("No such file descriptor. Impossible to unlink");
 376     return 0;
 377   } else {
 378 //    XBT_INFO("%s %zu", fd->storage, fd->size);
 379     storage_t st = find_storage_on_mount_list(workstation, fd->mount);
 380     xbt_dict_t content_dict = (st)->content;
 381     /* Check if the file is on this storage */
 382     if (!xbt_dict_get_or_null(content_dict, fd->name)){
 383       XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->name,
 384           st->generic_resource.name);
 385       return 0;
 386     } else {
 387       XBT_DEBUG("UNLINK on disk '%s'",st->generic_resource.name);
 388       st->used_size -= fd->size;
 389
 390       // Remove the file from storage
 391       xbt_dict_remove(content_dict,fd->name);
 392
 393       free(fd->name);
 394       free(fd->mount);
 395       xbt_free(fd);
 396       return 1;
 397     }
 398   }
 399 }
 400
 401 static surf_action_t ws_action_ls(void *workstation, const char* mount,
 402                                   const char *path)
 403 {
 404   XBT_DEBUG("LS on mount '%s' and file '%s'",mount, path);
 405   storage_t st = find_storage_on_mount_list(workstation, mount);
 406   surf_model_t model = st->generic_resource.model;
 407   return model->extension.storage.ls(st, path);
 408 }
 409
 410 static size_t ws_file_get_size(void *workstation, surf_file_t fd)
 411 {
 412   return fd->size;
 413 }
 414
 415 static void surf_workstation_model_init_internal(void)
 416 {
 417   surf_workstation_model = surf_model_init();
 418
 419   surf_workstation_model->name = "Workstation";
 420   surf_workstation_model->action_unref = ws_action_unref;
 421   surf_workstation_model->action_cancel = ws_action_cancel;
 422   surf_workstation_model->action_state_set = ws_action_state_set;
 423
 424   surf_workstation_model->model_private->resource_used = ws_resource_used;
 425   surf_workstation_model->model_private->share_resources =
 426       ws_share_resources;
 427   surf_workstation_model->model_private->update_actions_state =
 428       ws_update_actions_state;
 429   surf_workstation_model->model_private->update_resource_state =
 430       ws_update_resource_state;
 431   surf_workstation_model->model_private->finalize = ws_finalize;
 432
 433   surf_workstation_model->suspend = ws_action_suspend;
 434   surf_workstation_model->resume = ws_action_resume;
 435   surf_workstation_model->is_suspended = ws_action_is_suspended;
 436   surf_workstation_model->set_max_duration = ws_action_set_max_duration;
 437   surf_workstation_model->set_priority = ws_action_set_priority;
 438 #ifdef HAVE_TRACING
 439   surf_workstation_model->set_category = ws_action_set_category;
 440 #endif
 441   surf_workstation_model->get_remains = ws_action_get_remains;
 442 #ifdef HAVE_LATENCY_BOUND_TRACKING
 443   surf_workstation_model->get_latency_limited = ws_get_latency_limited;
 444 #endif
 445
 446   surf_workstation_model->extension.workstation.execute = ws_execute;
 447   surf_workstation_model->extension.workstation.sleep = ws_action_sleep;
 448   surf_workstation_model->extension.workstation.get_state = ws_get_state;
 449   surf_workstation_model->extension.workstation.get_core = ws_get_core;
 450   surf_workstation_model->extension.workstation.get_speed = ws_get_speed;
 451   surf_workstation_model->extension.workstation.get_available_speed =
 452       ws_get_available_speed;
 453
 454   surf_workstation_model->extension.workstation.communicate =
 455       ws_communicate;
 456   surf_workstation_model->extension.workstation.get_route = ws_get_route;
 457   surf_workstation_model->extension.workstation.execute_parallel_task =
 458       ws_execute_parallel_task;
 459   surf_workstation_model->extension.workstation.get_link_bandwidth =
 460       ws_get_link_bandwidth;
 461   surf_workstation_model->extension.workstation.get_link_latency =
 462       ws_get_link_latency;
 463   surf_workstation_model->extension.workstation.link_shared =
 464       ws_link_shared;
 465   surf_workstation_model->extension.workstation.get_properties =
 466       ws_get_properties;
 467
 468   surf_workstation_model->extension.workstation.open = ws_action_open;
 469   surf_workstation_model->extension.workstation.close = ws_action_close;
 470   surf_workstation_model->extension.workstation.read = ws_action_read;
 471   surf_workstation_model->extension.workstation.write = ws_action_write;
 472   surf_workstation_model->extension.workstation.unlink = ws_file_unlink;
 473   surf_workstation_model->extension.workstation.ls = ws_action_ls;
 474   surf_workstation_model->extension.workstation.get_size = ws_file_get_size;
 475 }
 476
 477 void surf_workstation_model_init_current_default(void)
 478 {
 479   surf_workstation_model_init_internal();
 480   xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", xbt_strdup("yes"));
 481   surf_cpu_model_init_Cas01();
 482   surf_network_model_init_LegrandVelho();
 483
 484   xbt_dynar_push(model_list, &surf_workstation_model);
 485   sg_platf_host_add_cb(workstation_new);
 486 }
 487
 488 void surf_workstation_model_init_compound()
 489 {
 490
 491   xbt_assert(surf_cpu_model, "No CPU model defined yet!");
 492   xbt_assert(surf_network_model, "No network model defined yet!");
 493   surf_workstation_model_init_internal();
 494   xbt_dynar_push(model_list, &surf_workstation_model);
 495   sg_platf_host_add_cb(workstation_new);
 496 }