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 "surf/surf_resource.h"
  12
  13
  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 } s_workstation_CLM03_t, *workstation_CLM03_t;
  19
  20 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  21                                 "Logging specific to the SURF workstation module");
  22
  23 surf_model_t surf_workstation_model = NULL;
  24
  25 static workstation_CLM03_t workstation_new(const char *name, void *cpu)
  26 {
  27   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  28
  29   workstation->generic_resource.model = surf_workstation_model;
  30   workstation->generic_resource.name = xbt_strdup(name);
  31   workstation->cpu = cpu;
  32
  33   xbt_lib_set(host_lib, name, SURF_WKS_LEVEL, workstation);
  34
  35   return workstation;
  36 }
  37
  38 void create_workstations(void)
  39 {
  40   xbt_lib_cursor_t cursor = NULL;
  41   char *name = NULL;
  42   void **cpu = NULL;
  43
  44   xbt_lib_foreach(host_lib, cursor, name, cpu) {
  45           if(cpu[SURF_CPU_LEVEL])
  46                   workstation_new(name, cpu[SURF_CPU_LEVEL]);
  47   }
  48 }
  49
  50 static int ws_resource_used(void *resource_id)
  51 {
  52   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  53   return -1;
  54 }
  55
  56 static void ws_parallel_action_cancel(surf_action_t action)
  57 {
  58   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  59 }
  60
  61 static int ws_parallel_action_free(surf_action_t action)
  62 {
  63   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  64   return -1;
  65 }
  66
  67 static int ws_action_unref(surf_action_t action)
  68 {
  69   if (action->model_type == surf_network_model)
  70     return surf_network_model->action_unref(action);
  71   else if (action->model_type == surf_cpu_model)
  72     return surf_cpu_model->action_unref(action);
  73   else if (action->model_type == surf_workstation_model)
  74     return ws_parallel_action_free(action);
  75   else
  76     DIE_IMPOSSIBLE;
  77   return 0;
  78 }
  79
  80 static void ws_action_cancel(surf_action_t action)
  81 {
  82   if (action->model_type == surf_network_model)
  83     surf_network_model->action_cancel(action);
  84   else if (action->model_type == surf_cpu_model)
  85     surf_cpu_model->action_cancel(action);
  86   else if (action->model_type == surf_workstation_model)
  87     ws_parallel_action_cancel(action);
  88   else
  89     DIE_IMPOSSIBLE;
  90   return;
  91 }
  92
  93 static void ws_action_state_set(surf_action_t action,
  94                                 e_surf_action_state_t state)
  95 {
  96   if (action->model_type == surf_network_model)
  97     surf_network_model->action_state_set(action, state);
  98   else if (action->model_type == surf_cpu_model)
  99     surf_cpu_model->action_state_set(action, state);
 100   else if (action->model_type == surf_workstation_model)
 101     surf_action_state_set(action, state);
 102   else
 103     DIE_IMPOSSIBLE;
 104   return;
 105 }
 106
 107 static double ws_share_resources(double now)
 108 {
 109   return -1.0;
 110 }
 111
 112 static void ws_update_actions_state(double now, double delta)
 113 {
 114   return;
 115 }
 116
 117 static void ws_update_resource_state(void *id,
 118                                      tmgr_trace_event_t event_type,
 119                                      double value, double date)
 120 {
 121   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 122 }
 123
 124 static surf_action_t ws_execute(void *workstation, double size)
 125 {
 126   return surf_cpu_model->extension.cpu.
 127       execute(((workstation_CLM03_t) workstation)->cpu, size);
 128 }
 129
 130 static surf_action_t ws_action_sleep(void *workstation, double duration)
 131 {
 132   return surf_cpu_model->extension.cpu.
 133       sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 134 }
 135
 136 static void ws_action_suspend(surf_action_t action)
 137 {
 138   if (action->model_type == surf_network_model)
 139     surf_network_model->suspend(action);
 140   else if (action->model_type == surf_cpu_model)
 141     surf_cpu_model->suspend(action);
 142   else
 143     DIE_IMPOSSIBLE;
 144 }
 145
 146 static void ws_action_resume(surf_action_t action)
 147 {
 148   if (action->model_type == surf_network_model)
 149     surf_network_model->resume(action);
 150   else if (action->model_type == surf_cpu_model)
 151     surf_cpu_model->resume(action);
 152   else
 153     DIE_IMPOSSIBLE;
 154 }
 155
 156 static int ws_action_is_suspended(surf_action_t action)
 157 {
 158   if (action->model_type == surf_network_model)
 159     return surf_network_model->is_suspended(action);
 160   if (action->model_type == surf_cpu_model)
 161     return surf_cpu_model->is_suspended(action);
 162   DIE_IMPOSSIBLE;
 163   return -1;
 164 }
 165
 166 static void ws_action_set_max_duration(surf_action_t action,
 167                                        double duration)
 168 {
 169   if (action->model_type == surf_network_model)
 170     surf_network_model->set_max_duration(action, duration);
 171   else if (action->model_type == surf_cpu_model)
 172     surf_cpu_model->set_max_duration(action, duration);
 173   else
 174     DIE_IMPOSSIBLE;
 175 }
 176
 177 static void ws_action_set_priority(surf_action_t action, double priority)
 178 {
 179   if (action->model_type == surf_network_model)
 180     surf_network_model->set_priority(action, priority);
 181   else if (action->model_type == surf_cpu_model)
 182     surf_cpu_model->set_priority(action, priority);
 183   else
 184     DIE_IMPOSSIBLE;
 185 }
 186
 187 #ifdef HAVE_TRACING
 188 static void ws_action_set_category(surf_action_t action, const char *category)
 189 {
 190   if (action->model_type == surf_network_model)
 191     surf_network_model->set_category(action, category);
 192   else if (action->model_type == surf_cpu_model)
 193     surf_cpu_model->set_category(action, category);
 194   else
 195     DIE_IMPOSSIBLE;
 196 }
 197 #endif
 198
 199 #ifdef HAVE_LATENCY_BOUND_TRACKING
 200 static int ws_get_latency_limited(surf_action_t action)
 201 {
 202   if (action->model_type == surf_network_model)
 203     return surf_network_model->get_latency_limited(action);
 204   else
 205     return 0;
 206 }
 207 #endif
 208
 209 static double ws_action_get_remains(surf_action_t action)
 210 {
 211   if (action->model_type == surf_network_model)
 212     return surf_network_model->get_remains(action);
 213   if (action->model_type == surf_cpu_model)
 214     return surf_cpu_model->get_remains(action);
 215   DIE_IMPOSSIBLE;
 216   return -1.0;
 217 }
 218
 219 static surf_action_t ws_communicate(void *workstation_src,
 220                                     void *workstation_dst, double size,
 221                                     double rate)
 222 {
 223   workstation_CLM03_t src = (workstation_CLM03_t) workstation_src;
 224   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 225   return surf_network_model->extension.network.
 226       communicate(surf_resource_name(src->cpu),
 227                   surf_resource_name(dst->cpu), size, rate);
 228 }
 229
 230 static e_surf_resource_state_t ws_get_state(void *workstation)
 231 {
 232   return surf_cpu_model->extension.cpu.
 233       get_state(((workstation_CLM03_t) workstation)->cpu);
 234 }
 235
 236 static double ws_get_speed(void *workstation, double load)
 237 {
 238   return surf_cpu_model->extension.cpu.
 239       get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 240 }
 241
 242 static double ws_get_available_speed(void *workstation)
 243 {
 244   return surf_cpu_model->extension.cpu.
 245       get_available_speed(((workstation_CLM03_t)
 246                            workstation)->cpu);
 247 }
 248
 249 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 250                                               void **workstation_list,
 251                                               double *computation_amount,
 252                                               double *communication_amount,
 253                                               double amount, double rate)
 254 {
 255   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 256   return NULL;
 257 }
 258
 259
 260 /* returns an array of network_link_CM02_t */
 261 static xbt_dynar_t ws_get_route(void *src, void *dst)
 262 {
 263   return surf_network_model->extension.
 264       network.get_route(surf_resource_name(src), surf_resource_name(dst));
 265 }
 266
 267 static double ws_get_link_bandwidth(const void *link)
 268 {
 269   return surf_network_model->extension.network.get_link_bandwidth(link);
 270 }
 271
 272 static double ws_get_link_latency(const void *link)
 273 {
 274   return surf_network_model->extension.network.get_link_latency(link);
 275 }
 276
 277 static int ws_link_shared(const void *link)
 278 {
 279   return surf_network_model->extension.network.link_shared(link);
 280 }
 281
 282 static void ws_finalize(void)
 283 {
 284   surf_model_exit(surf_workstation_model);
 285   surf_workstation_model = NULL;
 286 }
 287
 288 static xbt_dict_t ws_get_properties(const void *ws)
 289 {
 290   return surf_resource_properties(((workstation_CLM03_t) ws)->cpu);
 291 }
 292
 293 static surf_action_t ws_action_open(void *workstation, const char* path, const char* mode)
 294 {
 295   return surf_cpu_model->extension.cpu.
 296       sleep(((workstation_CLM03_t) workstation)->cpu, 1);
 297 }
 298
 299 static surf_action_t ws_action_close(void *workstation, surf_file_t fp)
 300 {
 301   return surf_cpu_model->extension.cpu.
 302       sleep(((workstation_CLM03_t) workstation)->cpu, 2);
 303 }
 304
 305 static surf_action_t ws_action_read(void *workstation, void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 306 {
 307   return surf_cpu_model->extension.cpu.
 308       sleep(((workstation_CLM03_t) workstation)->cpu, 3);
 309 }
 310
 311 static surf_action_t ws_action_write(void *workstation, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 312 {
 313   return surf_cpu_model->extension.cpu.
 314       sleep(((workstation_CLM03_t) workstation)->cpu, 4);
 315 }
 316
 317 static surf_action_t ws_action_stat(void *workstation, int fd, void* buf)
 318 {
 319   return surf_cpu_model->extension.cpu.
 320       sleep(((workstation_CLM03_t) workstation)->cpu, 5);
 321 }
 322
 323 static void surf_workstation_model_init_internal(void)
 324 {
 325   surf_workstation_model = surf_model_init();
 326
 327   surf_workstation_model->name = "Workstation";
 328   surf_workstation_model->action_unref = ws_action_unref;
 329   surf_workstation_model->action_cancel = ws_action_cancel;
 330   surf_workstation_model->action_state_set = ws_action_state_set;
 331
 332   surf_workstation_model->model_private->resource_used = ws_resource_used;
 333   surf_workstation_model->model_private->share_resources =
 334       ws_share_resources;
 335   surf_workstation_model->model_private->update_actions_state =
 336       ws_update_actions_state;
 337   surf_workstation_model->model_private->update_resource_state =
 338       ws_update_resource_state;
 339   surf_workstation_model->model_private->finalize = ws_finalize;
 340
 341   surf_workstation_model->suspend = ws_action_suspend;
 342   surf_workstation_model->resume = ws_action_resume;
 343   surf_workstation_model->is_suspended = ws_action_is_suspended;
 344   surf_workstation_model->set_max_duration = ws_action_set_max_duration;
 345   surf_workstation_model->set_priority = ws_action_set_priority;
 346 #ifdef HAVE_TRACING
 347   surf_workstation_model->set_category = ws_action_set_category;
 348 #endif
 349   surf_workstation_model->get_remains = ws_action_get_remains;
 350 #ifdef HAVE_LATENCY_BOUND_TRACKING
 351   surf_workstation_model->get_latency_limited = ws_get_latency_limited;
 352 #endif
 353
 354   surf_workstation_model->extension.workstation.execute = ws_execute;
 355   surf_workstation_model->extension.workstation.sleep = ws_action_sleep;
 356   surf_workstation_model->extension.workstation.get_state = ws_get_state;
 357   surf_workstation_model->extension.workstation.get_speed = ws_get_speed;
 358   surf_workstation_model->extension.workstation.get_available_speed =
 359       ws_get_available_speed;
 360
 361   surf_workstation_model->extension.workstation.communicate =
 362       ws_communicate;
 363   surf_workstation_model->extension.workstation.get_route = ws_get_route;
 364   surf_workstation_model->extension.workstation.execute_parallel_task =
 365       ws_execute_parallel_task;
 366   surf_workstation_model->extension.workstation.get_link_bandwidth =
 367       ws_get_link_bandwidth;
 368   surf_workstation_model->extension.workstation.get_link_latency =
 369       ws_get_link_latency;
 370   surf_workstation_model->extension.workstation.link_shared =
 371       ws_link_shared;
 372   surf_workstation_model->extension.workstation.get_properties =
 373       ws_get_properties;
 374
 375   surf_workstation_model->extension.workstation.open = ws_action_open;
 376   surf_workstation_model->extension.workstation.close = ws_action_close;
 377   surf_workstation_model->extension.workstation.read = ws_action_read;
 378   surf_workstation_model->extension.workstation.write = ws_action_write;
 379   surf_workstation_model->extension.workstation.stat = ws_action_stat;
 380 }
 381
 382 void surf_workstation_model_init_current_default(void)
 383 {
 384   surf_workstation_model_init_internal();
 385   xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", 1);
 386   surf_cpu_model_init_Cas01();
 387   surf_network_model_init_LegrandVelho();
 388
 389   xbt_dynar_push(model_list, &surf_workstation_model);
 390   sg_platf_postparse_add_cb(create_workstations);
 391 }
 392
 393 void surf_workstation_model_init_compound()
 394 {
 395
 396   xbt_assert(surf_cpu_model, "No CPU model defined yet!");
 397   xbt_assert(surf_network_model, "No network model defined yet!");
 398   surf_workstation_model_init_internal();
 399   xbt_dynar_push(model_list, &surf_workstation_model);
 400   sg_platf_postparse_add_cb(create_workstations);
 401 }