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
  12 typedef struct workstation_CLM03 {
  13   s_surf_resource_t generic_resource;   /* Must remain first to add this to a trace */
  14   void *cpu;
  15 } s_workstation_CLM03_t, *workstation_CLM03_t;
  16
  17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  18                                 "Logging specific to the SURF workstation module");
  19
  20 surf_model_t surf_workstation_model = NULL;
  21
  22 static workstation_CLM03_t workstation_new(const char *name, void *cpu)
  23 {
  24   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  25
  26   workstation->generic_resource.model = surf_workstation_model;
  27   workstation->generic_resource.name = xbt_strdup(name);
  28   workstation->cpu = cpu;
  29
  30   xbt_lib_set(host_lib, name, SURF_WKS_LEVEL, workstation);
  31
  32   return workstation;
  33 }
  34
  35 void create_workstations(void)
  36 {
  37   xbt_lib_cursor_t cursor = NULL;
  38   char *name = NULL;
  39   void **cpu = NULL;
  40
  41   xbt_lib_foreach(host_lib, cursor, name, cpu) {
  42           if(cpu[SURF_CPU_LEVEL])
  43                   workstation_new(name, cpu[SURF_CPU_LEVEL]);
  44   }
  45 }
  46
  47 static int ws_resource_used(void *resource_id)
  48 {
  49   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  50 }
  51
  52 static void ws_parallel_action_cancel(surf_action_t action)
  53 {
  54   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  55 }
  56
  57 static int ws_parallel_action_free(surf_action_t action)
  58 {
  59   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  60 }
  61
  62 static int ws_action_unref(surf_action_t action)
  63 {
  64   if (action->model_type == surf_network_model)
  65     return surf_network_model->action_unref(action);
  66   else if (action->model_type == surf_cpu_model)
  67     return surf_cpu_model->action_unref(action);
  68   else if (action->model_type == surf_workstation_model)
  69     return ws_parallel_action_free(action);
  70   else
  71     DIE_IMPOSSIBLE;
  72   return 0;
  73 }
  74
  75 static void ws_action_cancel(surf_action_t action)
  76 {
  77   if (action->model_type == surf_network_model)
  78     surf_network_model->action_cancel(action);
  79   else if (action->model_type == surf_cpu_model)
  80     surf_cpu_model->action_cancel(action);
  81   else if (action->model_type == surf_workstation_model)
  82     ws_parallel_action_cancel(action);
  83   else
  84     DIE_IMPOSSIBLE;
  85   return;
  86 }
  87
  88 static void ws_action_state_set(surf_action_t action,
  89                                 e_surf_action_state_t state)
  90 {
  91   if (action->model_type == surf_network_model)
  92     surf_network_model->action_state_set(action, state);
  93   else if (action->model_type == surf_cpu_model)
  94     surf_cpu_model->action_state_set(action, state);
  95   else if (action->model_type == surf_workstation_model)
  96     surf_action_state_set(action, state);
  97   else
  98     DIE_IMPOSSIBLE;
  99   return;
 100 }
 101
 102 static double ws_share_resources(double now)
 103 {
 104   return -1.0;
 105 }
 106
 107 static void ws_update_actions_state(double now, double delta)
 108 {
 109   return;
 110 }
 111
 112 static void ws_update_resource_state(void *id,
 113                                      tmgr_trace_event_t event_type,
 114                                      double value, double date)
 115 {
 116   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 117 }
 118
 119 static surf_action_t ws_execute(void *workstation, double size)
 120 {
 121   return surf_cpu_model->extension.cpu.
 122       execute(((workstation_CLM03_t) workstation)->cpu, size);
 123 }
 124
 125 static surf_action_t ws_action_sleep(void *workstation, double duration)
 126 {
 127   return surf_cpu_model->extension.cpu.
 128       sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 129 }
 130
 131 static void ws_action_suspend(surf_action_t action)
 132 {
 133   if (action->model_type == surf_network_model)
 134     surf_network_model->suspend(action);
 135   else if (action->model_type == surf_cpu_model)
 136     surf_cpu_model->suspend(action);
 137   else
 138     DIE_IMPOSSIBLE;
 139 }
 140
 141 static void ws_action_resume(surf_action_t action)
 142 {
 143   if (action->model_type == surf_network_model)
 144     surf_network_model->resume(action);
 145   else if (action->model_type == surf_cpu_model)
 146     surf_cpu_model->resume(action);
 147   else
 148     DIE_IMPOSSIBLE;
 149 }
 150
 151 static int ws_action_is_suspended(surf_action_t action)
 152 {
 153   if (action->model_type == surf_network_model)
 154     return surf_network_model->is_suspended(action);
 155   if (action->model_type == surf_cpu_model)
 156     return surf_cpu_model->is_suspended(action);
 157   DIE_IMPOSSIBLE;
 158 }
 159
 160 static void ws_action_set_max_duration(surf_action_t action,
 161                                        double duration)
 162 {
 163   if (action->model_type == surf_network_model)
 164     surf_network_model->set_max_duration(action, duration);
 165   else if (action->model_type == surf_cpu_model)
 166     surf_cpu_model->set_max_duration(action, duration);
 167   else
 168     DIE_IMPOSSIBLE;
 169 }
 170
 171 static void ws_action_set_priority(surf_action_t action, double priority)
 172 {
 173   if (action->model_type == surf_network_model)
 174     surf_network_model->set_priority(action, priority);
 175   else if (action->model_type == surf_cpu_model)
 176     surf_cpu_model->set_priority(action, priority);
 177   else
 178     DIE_IMPOSSIBLE;
 179 }
 180
 181 #ifdef HAVE_TRACING
 182 static void ws_action_set_category(surf_action_t action, const char *category)
 183 {
 184   if (action->model_type == surf_network_model)
 185     surf_network_model->set_category(action, category);
 186   else if (action->model_type == surf_cpu_model)
 187     surf_cpu_model->set_category(action, category);
 188   else
 189     DIE_IMPOSSIBLE;
 190 }
 191 #endif
 192
 193 #ifdef HAVE_LATENCY_BOUND_TRACKING
 194 static int ws_get_latency_limited(surf_action_t action)
 195 {
 196   if (action->model_type == surf_network_model)
 197     return surf_network_model->get_latency_limited(action);
 198   else
 199     return 0;
 200 }
 201 #endif
 202
 203 static double ws_action_get_remains(surf_action_t action)
 204 {
 205   if (action->model_type == surf_network_model)
 206     return surf_network_model->get_remains(action);
 207   if (action->model_type == surf_cpu_model)
 208     return surf_cpu_model->get_remains(action);
 209   DIE_IMPOSSIBLE;
 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 = (workstation_CLM03_t) workstation_src;
 217   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 218   return surf_network_model->extension.network.
 219       communicate(surf_resource_name(src->cpu),
 220                   surf_resource_name(dst->cpu), size, rate);
 221 }
 222
 223 static e_surf_resource_state_t ws_get_state(void *workstation)
 224 {
 225   return surf_cpu_model->extension.cpu.
 226       get_state(((workstation_CLM03_t) workstation)->cpu);
 227 }
 228
 229 static double ws_get_speed(void *workstation, double load)
 230 {
 231   return surf_cpu_model->extension.cpu.
 232       get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 233 }
 234
 235 static double ws_get_available_speed(void *workstation)
 236 {
 237   return surf_cpu_model->extension.cpu.
 238       get_available_speed(((workstation_CLM03_t)
 239                            workstation)->cpu);
 240 }
 241
 242 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 243                                               void **workstation_list,
 244                                               double *computation_amount,
 245                                               double *communication_amount,
 246                                               double amount, double rate)
 247 {
 248   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 249 }
 250
 251
 252 /* returns an array of network_link_CM02_t */
 253 static xbt_dynar_t ws_get_route(void *src, void *dst)
 254 {
 255   return surf_network_model->extension.
 256       network.get_route(surf_resource_name(src), surf_resource_name(src));
 257 }
 258
 259 static double ws_get_link_bandwidth(const void *link)
 260 {
 261   return surf_network_model->extension.network.get_link_bandwidth(link);
 262 }
 263
 264 static double ws_get_link_latency(const void *link)
 265 {
 266   return surf_network_model->extension.network.get_link_latency(link);
 267 }
 268
 269 static int ws_link_shared(const void *link)
 270 {
 271   return surf_network_model->extension.network.get_link_latency(link);
 272 }
 273
 274 static void ws_finalize(void)
 275 {
 276   surf_model_exit(surf_workstation_model);
 277   surf_workstation_model = NULL;
 278 }
 279
 280 static xbt_dict_t ws_get_properties(const void *ws)
 281 {
 282   return surf_resource_properties(((workstation_CLM03_t) ws)->cpu);
 283 }
 284
 285 static void surf_workstation_model_init_internal(void)
 286 {
 287   surf_workstation_model = surf_model_init();
 288
 289   surf_workstation_model->name = "Workstation";
 290   surf_workstation_model->action_unref = ws_action_unref;
 291   surf_workstation_model->action_cancel = ws_action_cancel;
 292   surf_workstation_model->action_state_set = ws_action_state_set;
 293
 294   surf_workstation_model->model_private->resource_used = ws_resource_used;
 295   surf_workstation_model->model_private->share_resources =
 296       ws_share_resources;
 297   surf_workstation_model->model_private->update_actions_state =
 298       ws_update_actions_state;
 299   surf_workstation_model->model_private->update_resource_state =
 300       ws_update_resource_state;
 301   surf_workstation_model->model_private->finalize = ws_finalize;
 302
 303   surf_workstation_model->suspend = ws_action_suspend;
 304   surf_workstation_model->resume = ws_action_resume;
 305   surf_workstation_model->is_suspended = ws_action_is_suspended;
 306   surf_workstation_model->set_max_duration = ws_action_set_max_duration;
 307   surf_workstation_model->set_priority = ws_action_set_priority;
 308 #ifdef HAVE_TRACING
 309   surf_workstation_model->set_category = ws_action_set_category;
 310 #endif
 311   surf_workstation_model->get_remains = ws_action_get_remains;
 312 #ifdef HAVE_LATENCY_BOUND_TRACKING
 313   surf_workstation_model->get_latency_limited = ws_get_latency_limited;
 314 #endif
 315
 316   surf_workstation_model->extension.workstation.execute = ws_execute;
 317   surf_workstation_model->extension.workstation.sleep = ws_action_sleep;
 318   surf_workstation_model->extension.workstation.get_state = ws_get_state;
 319   surf_workstation_model->extension.workstation.get_speed = ws_get_speed;
 320   surf_workstation_model->extension.workstation.get_available_speed =
 321       ws_get_available_speed;
 322
 323   surf_workstation_model->extension.workstation.communicate =
 324       ws_communicate;
 325   surf_workstation_model->extension.workstation.get_route = ws_get_route;
 326   surf_workstation_model->extension.workstation.execute_parallel_task =
 327       ws_execute_parallel_task;
 328   surf_workstation_model->extension.workstation.get_link_bandwidth =
 329       ws_get_link_bandwidth;
 330   surf_workstation_model->extension.workstation.get_link_latency =
 331       ws_get_link_latency;
 332   surf_workstation_model->extension.workstation.link_shared =
 333       ws_link_shared;
 334   surf_workstation_model->extension.workstation.get_properties =
 335       ws_get_properties;
 336
 337 }
 338
 339 /********************************************************************/
 340 /* The model used in MSG and presented at CCGrid03                  */
 341 /********************************************************************/
 342 /* @InProceedings{Casanova.CLM_03, */
 343 /*   author = {Henri Casanova and Arnaud Legrand and Loris Marchal}, */
 344 /*   title = {Scheduling Distributed Applications: the SimGrid Simulation Framework}, */
 345 /*   booktitle = {Proceedings of the third IEEE International Symposium on Cluster Computing and the Grid (CCGrid'03)}, */
 346 /*   publisher = {"IEEE Computer Society Press"}, */
 347 /*   month = {may}, */
 348 /*   year = {2003} */
 349 /* } */
 350 void surf_workstation_model_init_CLM03(void)
 351 {
 352   surf_workstation_model_init_internal();
 353   surf_cpu_model_init_Cas01_im();
 354   surf_network_model_init_LegrandVelho();
 355   update_model_description(surf_workstation_model_description,
 356                            "CLM03", surf_workstation_model);
 357   xbt_dynar_push(model_list, &surf_workstation_model);
 358 }
 359
 360 void surf_workstation_model_init_compound()
 361 {
 362
 363   xbt_assert(surf_cpu_model, "No CPU model defined yet!");
 364   xbt_assert(surf_network_model, "No network model defined yet!");
 365   surf_workstation_model_init_internal();
 366
 367   update_model_description(surf_workstation_model_description,
 368                            "compound", surf_workstation_model);
 369
 370   xbt_dynar_push(model_list, &surf_workstation_model);
 371 }