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 }
  54
  55 static void ws_parallel_action_cancel(surf_action_t action)
  56 {
  57   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  58 }
  59
  60 static int ws_parallel_action_free(surf_action_t action)
  61 {
  62   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  63 }
  64
  65 static int ws_action_unref(surf_action_t action)
  66 {
  67   if (action->model_type == surf_network_model)
  68     return surf_network_model->action_unref(action);
  69   else if (action->model_type == surf_cpu_model)
  70     return surf_cpu_model->action_unref(action);
  71   else if (action->model_type == surf_workstation_model)
  72     return ws_parallel_action_free(action);
  73   else
  74     DIE_IMPOSSIBLE;
  75   return 0;
  76 }
  77
  78 static void ws_action_cancel(surf_action_t action)
  79 {
  80   if (action->model_type == surf_network_model)
  81     surf_network_model->action_cancel(action);
  82   else if (action->model_type == surf_cpu_model)
  83     surf_cpu_model->action_cancel(action);
  84   else if (action->model_type == surf_workstation_model)
  85     ws_parallel_action_cancel(action);
  86   else
  87     DIE_IMPOSSIBLE;
  88   return;
  89 }
  90
  91 static void ws_action_state_set(surf_action_t action,
  92                                 e_surf_action_state_t state)
  93 {
  94   if (action->model_type == surf_network_model)
  95     surf_network_model->action_state_set(action, state);
  96   else if (action->model_type == surf_cpu_model)
  97     surf_cpu_model->action_state_set(action, state);
  98   else if (action->model_type == surf_workstation_model)
  99     surf_action_state_set(action, state);
 100   else
 101     DIE_IMPOSSIBLE;
 102   return;
 103 }
 104
 105 static double ws_share_resources(double now)
 106 {
 107   return -1.0;
 108 }
 109
 110 static void ws_update_actions_state(double now, double delta)
 111 {
 112   return;
 113 }
 114
 115 static void ws_update_resource_state(void *id,
 116                                      tmgr_trace_event_t event_type,
 117                                      double value, double date)
 118 {
 119   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 120 }
 121
 122 static surf_action_t ws_execute(void *workstation, double size)
 123 {
 124   return surf_cpu_model->extension.cpu.
 125       execute(((workstation_CLM03_t) workstation)->cpu, size);
 126 }
 127
 128 static surf_action_t ws_action_sleep(void *workstation, double duration)
 129 {
 130   return surf_cpu_model->extension.cpu.
 131       sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 132 }
 133
 134 static void ws_action_suspend(surf_action_t action)
 135 {
 136   if (action->model_type == surf_network_model)
 137     surf_network_model->suspend(action);
 138   else if (action->model_type == surf_cpu_model)
 139     surf_cpu_model->suspend(action);
 140   else
 141     DIE_IMPOSSIBLE;
 142 }
 143
 144 static void ws_action_resume(surf_action_t action)
 145 {
 146   if (action->model_type == surf_network_model)
 147     surf_network_model->resume(action);
 148   else if (action->model_type == surf_cpu_model)
 149     surf_cpu_model->resume(action);
 150   else
 151     DIE_IMPOSSIBLE;
 152 }
 153
 154 static int ws_action_is_suspended(surf_action_t action)
 155 {
 156   if (action->model_type == surf_network_model)
 157     return surf_network_model->is_suspended(action);
 158   if (action->model_type == surf_cpu_model)
 159     return surf_cpu_model->is_suspended(action);
 160   DIE_IMPOSSIBLE;
 161 }
 162
 163 static void ws_action_set_max_duration(surf_action_t action,
 164                                        double duration)
 165 {
 166   if (action->model_type == surf_network_model)
 167     surf_network_model->set_max_duration(action, duration);
 168   else if (action->model_type == surf_cpu_model)
 169     surf_cpu_model->set_max_duration(action, duration);
 170   else
 171     DIE_IMPOSSIBLE;
 172 }
 173
 174 static void ws_action_set_priority(surf_action_t action, double priority)
 175 {
 176   if (action->model_type == surf_network_model)
 177     surf_network_model->set_priority(action, priority);
 178   else if (action->model_type == surf_cpu_model)
 179     surf_cpu_model->set_priority(action, priority);
 180   else
 181     DIE_IMPOSSIBLE;
 182 }
 183
 184 #ifdef HAVE_TRACING
 185 static void ws_action_set_category(surf_action_t action, const char *category)
 186 {
 187   if (action->model_type == surf_network_model)
 188     surf_network_model->set_category(action, category);
 189   else if (action->model_type == surf_cpu_model)
 190     surf_cpu_model->set_category(action, category);
 191   else
 192     DIE_IMPOSSIBLE;
 193 }
 194 #endif
 195
 196 #ifdef HAVE_LATENCY_BOUND_TRACKING
 197 static int ws_get_latency_limited(surf_action_t action)
 198 {
 199   if (action->model_type == surf_network_model)
 200     return surf_network_model->get_latency_limited(action);
 201   else
 202     return 0;
 203 }
 204 #endif
 205
 206 static double ws_action_get_remains(surf_action_t action)
 207 {
 208   if (action->model_type == surf_network_model)
 209     return surf_network_model->get_remains(action);
 210   if (action->model_type == surf_cpu_model)
 211     return surf_cpu_model->get_remains(action);
 212   DIE_IMPOSSIBLE;
 213 }
 214
 215 static surf_action_t ws_communicate(void *workstation_src,
 216                                     void *workstation_dst, double size,
 217                                     double rate)
 218 {
 219   workstation_CLM03_t src = (workstation_CLM03_t) workstation_src;
 220   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 221   return surf_network_model->extension.network.
 222       communicate(surf_resource_name(src->cpu),
 223                   surf_resource_name(dst->cpu), size, rate);
 224 }
 225
 226 static e_surf_resource_state_t ws_get_state(void *workstation)
 227 {
 228   return surf_cpu_model->extension.cpu.
 229       get_state(((workstation_CLM03_t) workstation)->cpu);
 230 }
 231
 232 static double ws_get_speed(void *workstation, double load)
 233 {
 234   return surf_cpu_model->extension.cpu.
 235       get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 236 }
 237
 238 static double ws_get_available_speed(void *workstation)
 239 {
 240   return surf_cpu_model->extension.cpu.
 241       get_available_speed(((workstation_CLM03_t)
 242                            workstation)->cpu);
 243 }
 244
 245 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 246                                               void **workstation_list,
 247                                               double *computation_amount,
 248                                               double *communication_amount,
 249                                               double amount, double rate)
 250 {
 251   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 252 }
 253
 254
 255 /* returns an array of network_link_CM02_t */
 256 static xbt_dynar_t ws_get_route(void *src, void *dst)
 257 {
 258   return surf_network_model->extension.
 259       network.get_route(surf_resource_name(src), surf_resource_name(src));
 260 }
 261
 262 static double ws_get_link_bandwidth(const void *link)
 263 {
 264   return surf_network_model->extension.network.get_link_bandwidth(link);
 265 }
 266
 267 static double ws_get_link_latency(const void *link)
 268 {
 269   return surf_network_model->extension.network.get_link_latency(link);
 270 }
 271
 272 static int ws_link_shared(const void *link)
 273 {
 274   return surf_network_model->extension.network.get_link_latency(link);
 275 }
 276
 277 static void ws_finalize(void)
 278 {
 279   surf_model_exit(surf_workstation_model);
 280   surf_workstation_model = NULL;
 281 }
 282
 283 static xbt_dict_t ws_get_properties(const void *ws)
 284 {
 285   return surf_resource_properties(((workstation_CLM03_t) ws)->cpu);
 286 }
 287
 288 static void surf_workstation_model_init_internal(void)
 289 {
 290   surf_workstation_model = surf_model_init();
 291
 292   surf_workstation_model->name = "Workstation";
 293   surf_workstation_model->action_unref = ws_action_unref;
 294   surf_workstation_model->action_cancel = ws_action_cancel;
 295   surf_workstation_model->action_state_set = ws_action_state_set;
 296
 297   surf_workstation_model->model_private->resource_used = ws_resource_used;
 298   surf_workstation_model->model_private->share_resources =
 299       ws_share_resources;
 300   surf_workstation_model->model_private->update_actions_state =
 301       ws_update_actions_state;
 302   surf_workstation_model->model_private->update_resource_state =
 303       ws_update_resource_state;
 304   surf_workstation_model->model_private->finalize = ws_finalize;
 305
 306   surf_workstation_model->suspend = ws_action_suspend;
 307   surf_workstation_model->resume = ws_action_resume;
 308   surf_workstation_model->is_suspended = ws_action_is_suspended;
 309   surf_workstation_model->set_max_duration = ws_action_set_max_duration;
 310   surf_workstation_model->set_priority = ws_action_set_priority;
 311 #ifdef HAVE_TRACING
 312   surf_workstation_model->set_category = ws_action_set_category;
 313 #endif
 314   surf_workstation_model->get_remains = ws_action_get_remains;
 315 #ifdef HAVE_LATENCY_BOUND_TRACKING
 316   surf_workstation_model->get_latency_limited = ws_get_latency_limited;
 317 #endif
 318
 319   surf_workstation_model->extension.workstation.execute = ws_execute;
 320   surf_workstation_model->extension.workstation.sleep = ws_action_sleep;
 321   surf_workstation_model->extension.workstation.get_state = ws_get_state;
 322   surf_workstation_model->extension.workstation.get_speed = ws_get_speed;
 323   surf_workstation_model->extension.workstation.get_available_speed =
 324       ws_get_available_speed;
 325
 326   surf_workstation_model->extension.workstation.communicate =
 327       ws_communicate;
 328   surf_workstation_model->extension.workstation.get_route = ws_get_route;
 329   surf_workstation_model->extension.workstation.execute_parallel_task =
 330       ws_execute_parallel_task;
 331   surf_workstation_model->extension.workstation.get_link_bandwidth =
 332       ws_get_link_bandwidth;
 333   surf_workstation_model->extension.workstation.get_link_latency =
 334       ws_get_link_latency;
 335   surf_workstation_model->extension.workstation.link_shared =
 336       ws_link_shared;
 337   surf_workstation_model->extension.workstation.get_properties =
 338       ws_get_properties;
 339
 340 }
 341
 342 /********************************************************************/
 343 /* The model used in MSG and presented at CCGrid03                  */
 344 /********************************************************************/
 345 /* @InProceedings{Casanova.CLM_03, */
 346 /*   author = {Henri Casanova and Arnaud Legrand and Loris Marchal}, */
 347 /*   title = {Scheduling Distributed Applications: the SimGrid Simulation Framework}, */
 348 /*   booktitle = {Proceedings of the third IEEE International Symposium on Cluster Computing and the Grid (CCGrid'03)}, */
 349 /*   publisher = {"IEEE Computer Society Press"}, */
 350 /*   month = {may}, */
 351 /*   year = {2003} */
 352 /* } */
 353 void surf_workstation_model_init_CLM03(void)
 354 {
 355   surf_workstation_model_init_internal();
 356   surf_cpu_model_init_Cas01_im();
 357   im_surf_network_model_init_LegrandVelho();
 358   // FIXME: prefer the proper interface instead of bypassing the cfg module that way
 359   //xbt_cfg_set_parse(_surf_cfg_set, "network/model:LV08");
 360   //xbt_cfg_set_parse(_surf_cfg_set, "cpu/model:Cas01");
 361   xbt_dynar_push(model_list, &surf_workstation_model);
 362   sg_platf_postparse_add_cb(create_workstations);
 363 }
 364
 365 void surf_workstation_model_init_compound()
 366 {
 367
 368   xbt_assert(surf_cpu_model, "No CPU model defined yet!");
 369   xbt_assert(surf_network_model, "No network model defined yet!");
 370   surf_workstation_model_init_internal();
 371   xbt_dynar_push(model_list, &surf_workstation_model);
 372   sg_platf_postparse_add_cb(create_workstations);
 373 }