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