src/surf/vm_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 "surf/surf_resource.h"
  12 #include "simgrid/sg_config.h"
  13
  14 typedef struct workstation_VM2013 {
  15   s_surf_resource_t generic_resource;   /* Must remain first to add this to a trace */
  16   surf_resource_t physical_workstation;  // Pointer to the host OS
  17 } s_workstation_VM2013_t, *workstation_VM2013_t;
  18
  19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_vm_workstation, surf,
  20                                 "Logging specific to the SURF VM workstation module");
  21
  22 surf_model_t surf_vm_workstation_model = NULL;
  23
  24 static void *vm_ws_create (const char *name, void *phys_workstation)
  25 {
  26   workstation_VM2013_t workstation = xbt_new0(s_workstation_VM2013_t, 1);
  27 // TODO Implement the surf vm workstation model
  28   workstation->generic_resource.model = surf_vm_workstation_model;
  29   workstation->generic_resource.name = xbt_strdup(name);
  30   workstation->physical_workstation = phys_workstation;
  31   xbt_lib_set(host_lib, name, SURF_WKS_LEVEL, workstation);
  32
  33 }
  34
  35 static int ws_resource_used(void *resource_id)
  36 {
  37   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  38   return -1;
  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_type == surf_network_model)
  55     return surf_network_model->action_unref(action);
  56   else if (action->model_type == surf_cpu_model)
  57     return surf_cpu_model->action_unref(action);
  58   else if (action->model_type == surf_workstation_model)
  59     return ws_parallel_action_free(action);
  60   else
  61     DIE_IMPOSSIBLE;
  62   return 0;
  63 }
  64
  65 static void ws_action_cancel(surf_action_t action)
  66 {
  67   if (action->model_type == surf_network_model)
  68     surf_network_model->action_cancel(action);
  69   else if (action->model_type == surf_cpu_model)
  70     surf_cpu_model->action_cancel(action);
  71   else if (action->model_type == surf_workstation_model)
  72     ws_parallel_action_cancel(action);
  73   else
  74     DIE_IMPOSSIBLE;
  75   return;
  76 }
  77
  78 static void ws_action_state_set(surf_action_t action,
  79                                 e_surf_action_state_t state)
  80 {
  81   if (action->model_type == surf_network_model)
  82     surf_network_model->action_state_set(action, state);
  83   else if (action->model_type == surf_cpu_model)
  84     surf_cpu_model->action_state_set(action, state);
  85   else if (action->model_type == surf_workstation_model)
  86     surf_action_state_set(action, state);
  87   else
  88     DIE_IMPOSSIBLE;
  89   return;
  90 }
  91
  92 static double ws_share_resources(double now)
  93 {
  94   return -1.0;
  95 }
  96
  97 static void ws_update_actions_state(double now, double delta)
  98 {
  99   return;
 100 }
 101
 102 static void ws_update_resource_state(void *id,
 103                                      tmgr_trace_event_t event_type,
 104                                      double value, double date)
 105 {
 106   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 107 }
 108
 109 static surf_action_t ws_execute(void *workstation, double size)
 110 {
 111   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 112   return cpu->model->extension.cpu.execute(workstation, size);
 113 }
 114
 115 static surf_action_t ws_action_sleep(void *workstation, double duration)
 116 {
 117   return surf_cpu_model->extension.cpu.
 118       sleep(workstation, duration);
 119 }
 120
 121 static void ws_action_suspend(surf_action_t action)
 122 {
 123   if (action->model_type == surf_network_model)
 124     surf_network_model->suspend(action);
 125   else if (action->model_type == surf_cpu_model)
 126     surf_cpu_model->suspend(action);
 127   else
 128     DIE_IMPOSSIBLE;
 129 }
 130
 131 static void ws_action_resume(surf_action_t action)
 132 {
 133   if (action->model_type == surf_network_model)
 134     surf_network_model->resume(action);
 135   else if (action->model_type == surf_cpu_model)
 136     surf_cpu_model->resume(action);
 137   else
 138     DIE_IMPOSSIBLE;
 139 }
 140
 141 static int ws_action_is_suspended(surf_action_t action)
 142 {
 143   if (action->model_type == surf_network_model)
 144     return surf_network_model->is_suspended(action);
 145   if (action->model_type == surf_cpu_model)
 146     return surf_cpu_model->is_suspended(action);
 147   DIE_IMPOSSIBLE;
 148   return -1;
 149 }
 150
 151 static void ws_action_set_max_duration(surf_action_t action,
 152                                        double duration)
 153 {
 154   if (action->model_type == surf_network_model)
 155     surf_network_model->set_max_duration(action, duration);
 156   else if (action->model_type == surf_cpu_model)
 157     surf_cpu_model->set_max_duration(action, duration);
 158   else
 159     DIE_IMPOSSIBLE;
 160 }
 161
 162 static void ws_action_set_priority(surf_action_t action, double priority)
 163 {
 164   if (action->model_type == surf_network_model)
 165     surf_network_model->set_priority(action, priority);
 166   else if (action->model_type == surf_cpu_model)
 167     surf_cpu_model->set_priority(action, priority);
 168   else
 169     DIE_IMPOSSIBLE;
 170 }
 171
 172 #ifdef HAVE_TRACING
 173 static void ws_action_set_category(surf_action_t action, const char *category)
 174 {
 175   if (action->model_type == surf_network_model)
 176     surf_network_model->set_category(action, category);
 177   else if (action->model_type == surf_cpu_model)
 178     surf_cpu_model->set_category(action, category);
 179   else
 180     DIE_IMPOSSIBLE;
 181 }
 182 #endif
 183
 184 #ifdef HAVE_LATENCY_BOUND_TRACKING
 185 static int ws_get_latency_limited(surf_action_t action)
 186 {
 187   if (action->model_type == surf_network_model)
 188     return surf_network_model->get_latency_limited(action);
 189   else
 190     return 0;
 191 }
 192 #endif
 193
 194 static double ws_action_get_remains(surf_action_t action)
 195 {
 196   if (action->model_type == surf_network_model)
 197     return surf_network_model->get_remains(action);
 198   if (action->model_type == surf_cpu_model)
 199     return surf_cpu_model->get_remains(action);
 200   DIE_IMPOSSIBLE;
 201   return -1.0;
 202 }
 203
 204 static surf_action_t ws_communicate(void *workstation_src,
 205                                     void *workstation_dst, double size,
 206                                     double rate)
 207 {
 208   workstation_VM2013_t src = surf_workstation_resource_priv(workstation_src);
 209   workstation_VM2013_t dst = surf_workstation_resource_priv(workstation_dst);
 210   return surf_network_model->extension.network.
 211       communicate(src->net_elm,
 212                   dst->net_elm, size, rate);
 213 }
 214
 215 static e_surf_resource_state_t ws_get_state(void *workstation)
 216 {
 217   return surf_cpu_model->extension.cpu.
 218       get_state(workstation);
 219 }
 220
 221 static double ws_get_speed(void *workstation, double load)
 222 {
 223   return surf_cpu_model->extension.cpu.
 224       get_speed(workstation, load);
 225 }
 226
 227 static double ws_get_available_speed(void *workstation)
 228 {
 229   return surf_cpu_model->extension.cpu.
 230       get_available_speed(workstation);
 231 }
 232
 233 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 234                                               void **workstation_list,
 235                                               double *computation_amount,
 236                                               double *communication_amount,
 237                                               double rate)
 238 {
 239 #define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0)
 240   if ((workstation_nb == 1)
 241       && (cost_or_zero(communication_amount, 0) == 0.0))
 242     return ws_execute(workstation_list[0], computation_amount[0]);
 243   else if ((workstation_nb == 1)
 244            && (cost_or_zero(computation_amount, 0) == 0.0))
 245     return ws_communicate(workstation_list[0], workstation_list[0],communication_amount[0], rate);
 246   else if ((workstation_nb == 2)
 247              && (cost_or_zero(computation_amount, 0) == 0.0)
 248              && (cost_or_zero(computation_amount, 1) == 0.0)) {
 249     int i,nb = 0;
 250     double value = 0.0;
 251
 252     for (i = 0; i < workstation_nb * workstation_nb; i++) {
 253       if (cost_or_zero(communication_amount, i) > 0.0) {
 254         nb++;
 255         value = cost_or_zero(communication_amount, i);
 256       }
 257     }
 258     if (nb == 1)
 259       return ws_communicate(workstation_list[0], workstation_list[1],value, rate);
 260   }
 261 #undef cost_or_zero
 262
 263   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 264   return NULL;
 265 }
 266
 267
 268 /* returns an array of network_link_CM02_t */
 269 static xbt_dynar_t ws_get_route(void *workstation_src, void *workstation_dst)
 270 {
 271   XBT_DEBUG("ws_get_route");
 272   workstation_VM2013_t src = surf_workstation_resource_priv(workstation_src);
 273   workstation_VM2013_t dst = surf_workstation_resource_priv(workstation_dst);
 274   return surf_network_model->extension.
 275       network.get_route(src->net_elm,
 276                   dst->net_elm);
 277 }
 278
 279 static double ws_get_link_bandwidth(const void *link)
 280 {
 281   return surf_network_model->extension.network.get_link_bandwidth(link);
 282 }
 283
 284 static double ws_get_link_latency(const void *link)
 285 {
 286   return surf_network_model->extension.network.get_link_latency(link);
 287 }
 288
 289 static int ws_link_shared(const void *link)
 290 {
 291   return surf_network_model->extension.network.link_shared(link);
 292 }
 293
 294 static void ws_finalize(void)
 295 {
 296   surf_model_exit(surf_workstation_model);
 297   surf_workstation_model = NULL;
 298 }
 299
 300
 301 static storage_t find_storage_on_mount_list(void *workstation,const char* storage)
 302 {
 303   storage_t st = NULL;
 304   s_mount_t mnt;
 305   unsigned int cursor;
 306   workstation_VM2013_t ws = (workstation_VM2013_t) surf_workstation_resource_priv(workstation);
 307   xbt_dynar_t storage_list = ws->storage;
 308
 309   XBT_DEBUG("Search for storage name '%s' on '%s'",storage,ws->generic_resource.name);
 310   xbt_dynar_foreach(storage_list,cursor,mnt)
 311   {
 312     XBT_DEBUG("See '%s'",mnt.name);
 313     if(!strcmp(storage,mnt.name)){
 314       st = mnt.id;
 315       break;
 316     }
 317   }
 318   if(!st) xbt_die("Can't find mount '%s' for '%s'",storage,ws->generic_resource.name);
 319   return st;
 320 }
 321
 322 static surf_action_t ws_action_open(void *workstation, const char* mount, const char* path, const char* mode)
 323 {
 324   storage_t st = find_storage_on_mount_list(workstation, mount);
 325   XBT_DEBUG("OPEN on disk '%s'",st->generic_resource.name);
 326   surf_model_t model = st->generic_resource.model;
 327   return model->extension.storage.open(st, mount, path, mode);
 328 }
 329
 330 static surf_action_t ws_action_close(void *workstation, surf_file_t fp)
 331 {
 332   storage_t st = find_storage_on_mount_list(workstation, fp->storage);
 333   XBT_DEBUG("CLOSE on disk '%s'",st->generic_resource.name);
 334   surf_model_t model = st->generic_resource.model;
 335   return model->extension.storage.close(st, fp);
 336 }
 337
 338 static surf_action_t ws_action_read(void *workstation, void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 339 {
 340   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 341   XBT_DEBUG("READ on disk '%s'",st->generic_resource.name);
 342   surf_model_t model = st->generic_resource.model;
 343   return model->extension.storage.read(st, ptr, (double)size, nmemb, stream);
 344 }
 345
 346 static surf_action_t ws_action_write(void *workstation, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 347 {
 348   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 349   XBT_DEBUG("WRITE on disk '%s'",st->generic_resource.name);
 350   surf_model_t model = st->generic_resource.model;
 351   return model->extension.storage.write(st,  ptr, size, nmemb, stream);
 352 }
 353
 354 static surf_action_t ws_action_stat(void *workstation, surf_file_t stream)
 355 {
 356   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 357   XBT_DEBUG("STAT on disk '%s'",st->generic_resource.name);
 358   surf_model_t model = st->generic_resource.model;
 359   return model->extension.storage.stat(st,  stream);
 360 }
 361
 362 static surf_action_t ws_action_unlink(void *workstation, surf_file_t stream)
 363 {
 364   storage_t st = find_storage_on_mount_list(workstation, stream->storage);
 365   XBT_DEBUG("UNLINK on disk '%s'",st->generic_resource.name);
 366   surf_model_t model = st->generic_resource.model;
 367   return model->extension.storage.unlink(st,  stream);
 368 }
 369
 370 static surf_action_t ws_action_ls(void *workstation, const char* mount, const char *path)
 371 {
 372   XBT_DEBUG("LS on mount '%s' and file '%s'",mount, path);
 373   storage_t st = find_storage_on_mount_list(workstation, mount);
 374   surf_model_t model = st->generic_resource.model;
 375   return model->extension.storage.ls(st, path);
 376 }
 377
 378 static void surf_vm_workstation_model_init_internal(void)
 379 {
 380   // TODO Adrien, who is calling surf_model_init() and Why ?
 381   surf_vm_workstation_model = surf_model_init();
 382
 383   surf_vm_workstation_model->name = "Virtual Workstation";
 384   surf_vm_workstation_model->action_unref = ws_action_unref;
 385   surf_vm_workstation_model->action_cancel = ws_action_cancel;
 386   surf_vm_workstation_model->action_state_set = ws_action_state_set;
 387
 388   surf_vm_workstation_model->model_private->resource_used = ws_resource_used;
 389   surf_vm_workstation_model->model_private->share_resources =
 390       ws_share_resources;
 391   surf_vm_workstation_model->model_private->update_actions_state =
 392       ws_update_actions_state;
 393   surf_vm_workstation_model->model_private->update_resource_state =
 394       ws_update_resource_state;
 395   surf_vm_workstation_model->model_private->finalize = ws_finalize;
 396
 397   surf_vm_workstation_model->suspend = ws_action_suspend;
 398   surf_vm_workstation_model->resume = ws_action_resume;
 399   surf_vm_workstation_model->is_suspended = ws_action_is_suspended;
 400   surf_vm_workstation_model->set_max_duration = ws_action_set_max_duration;
 401   surf_vm_workstation_model->set_priority = ws_action_set_priority;
 402 #ifdef HAVE_TRACING
 403   surf_vm_workstation_model->set_category = ws_action_set_category;
 404 #endif
 405   surf_vm_workstation_model->get_remains = ws_action_get_remains;
 406 #ifdef HAVE_LATENCY_BOUND_TRACKING
 407   surf_vm_workstation_model->get_latency_limited = ws_get_latency_limited;
 408 #endif
 409
 410   surf_vm_workstation_model->extension.workstation.execute = ws_execute;
 411   surf_vm_workstation_model->extension.workstation.sleep = ws_action_sleep;
 412   surf_vm_workstation_model->extension.workstation.get_state = ws_get_state;
 413   surf_vm_workstation_model->extension.workstation.get_speed = ws_get_speed;
 414   surf_vm_workstation_model->extension.workstation.get_available_speed =
 415       ws_get_available_speed;
 416
 417   surf_vm_workstation_model->extension.workstation.communicate =
 418       ws_communicate;
 419   surf_vm_workstation_model->extension.workstation.get_route = ws_get_route;
 420   surf_vm_workstation_model->extension.workstation.execute_parallel_task =
 421       ws_execute_parallel_task;
 422   surf_vm_workstation_model->extension.workstation.get_link_bandwidth =
 423       ws_get_link_bandwidth;
 424   surf_vm_workstation_model->extension.workstation.get_link_latency =
 425       ws_get_link_latency;
 426   surf_vm_workstation_model->extension.workstation.link_shared =
 427       ws_link_shared;
 428   surf_vm_workstation_model->extension.workstation.get_properties =
 429       surf_resource_properties; // Generic invocations
 430
 431   surf_vm_workstation_model->extension.workstation.open = ws_action_open;
 432   surf_vm_workstation_model->extension.workstation.close = ws_action_close;
 433   surf_vm_workstation_model->extension.workstation.read = ws_action_read;
 434   surf_vm_workstation_model->extension.workstation.write = ws_action_write;
 435   surf_vm_workstation_model->extension.workstation.stat = ws_action_stat;
 436   surf_vm_workstation_model->extension.workstation.unlink = ws_action_unlink;
 437   surf_vm_workstation_model->extension.workstation.ls = ws_action_ls;
 438   surf_vm_workstation_model->extension.vm_workstation.create = vm_ws_create;
 439
 440 }
 441
 442 void surf_workstation_model_init_current_default(void)
 443 {
 444   surf_workstation_model_init_internal();
 445   xbt_cfg_setdefault_int(_sg_cfg_set, "network/crosstraffic", 1);
 446   surf_cpu_model_init_Cas01();
 447   surf_network_model_init_LegrandVelho();
 448 // TODO fix me
 449   xbt_dynar_push(model_list, &surf_workstation_model);
 450   sg_platf_host_add_cb(vm_ws_create);
 451 //  sg_platf_postparse_add_cb(create_workstations);
 452 }
 453
 454 void surf_vm_workstation_model_init()
 455 {
 456   surf_vm_workstation_model_init_internal();
 457   xbt_dynar_push(model_list, &surf_vm_workstation_model);
 458 }