src/surf/workstation.c

   1 /*      $Id$     */
   2
   3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved.                  */
   4
   5 /* This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the license (GNU LGPL) which comes with this package. */
   7
   8 #include "xbt/ex.h"
   9 #include "xbt/dict.h"
  10 #include "portable.h"
  11 #include "surf_private.h"
  12
  13 typedef struct workstation_CLM03 {
  14   s_surf_resource_t generic_resource; /* Must remain first to add this to a trace */
  15   void *cpu;
  16   int id;
  17 } s_workstation_CLM03_t, *workstation_CLM03_t;
  18
  19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  20                                 "Logging specific to the SURF workstation module");
  21
  22 surf_model_t surf_workstation_model = NULL;
  23
  24 static workstation_CLM03_t workstation_new(const char *name,
  25                                            void *cpu, int id)
  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   workstation->id = id;
  33
  34   xbt_dict_set(surf_model_resource_set(surf_workstation_model), name,
  35                workstation, surf_resource_free);
  36
  37   return workstation;
  38 }
  39
  40 void create_workstations(void)
  41 {
  42   xbt_dict_cursor_t cursor = NULL;
  43   char *name = NULL;
  44   void *cpu = NULL;
  45
  46   xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, name, cpu) {
  47     int *id = xbt_dict_get_or_null(used_routing->host_id,name);
  48     xbt_assert1(id, "No host %s found in the platform file", name);
  49
  50     workstation_new(name, cpu, *id);
  51   }
  52 }
  53
  54 static int resource_used(void *resource_id)
  55 {
  56   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  57 }
  58
  59 static void parallel_action_cancel(surf_action_t action)
  60 {
  61   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  62 }
  63
  64 static int parallel_action_free(surf_action_t action)
  65 {
  66   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  67 }
  68
  69 static int action_unref(surf_action_t action)
  70 {
  71   if (action->model_type == surf_network_model)
  72     return surf_network_model->action_unref(action);
  73   else if (action->model_type == surf_cpu_model)
  74     return surf_cpu_model->action_unref(action);
  75   else if (action->model_type == surf_workstation_model)
  76     return parallel_action_free(action);
  77   else
  78     DIE_IMPOSSIBLE;
  79   return 0;
  80 }
  81
  82 static void action_cancel(surf_action_t action)
  83 {
  84   if (action->model_type == surf_network_model)
  85     surf_network_model->action_cancel(action);
  86   else if (action->model_type == surf_cpu_model)
  87     surf_cpu_model->action_cancel(action);
  88   else if (action->model_type == surf_workstation_model)
  89     parallel_action_cancel(action);
  90   else
  91     DIE_IMPOSSIBLE;
  92   return;
  93 }
  94
  95 static void ws_action_state_set(surf_action_t action,
  96                                 e_surf_action_state_t state)
  97 {
  98   if (action->model_type == surf_network_model)
  99     surf_network_model->action_state_set(action, state);
 100   else if (action->model_type == surf_cpu_model)
 101     surf_cpu_model->action_state_set(action, state);
 102   else if (action->model_type == surf_workstation_model)
 103     surf_action_state_set(action, state);
 104   else
 105     DIE_IMPOSSIBLE;
 106   return;
 107 }
 108
 109 static double share_resources(double now)
 110 {
 111   return -1.0;
 112 }
 113
 114 static void update_actions_state(double now, double delta)
 115 {
 116   return;
 117 }
 118
 119 static void update_resource_state(void *id,
 120                                   tmgr_trace_event_t event_type,
 121                                   double value, double date)
 122 {
 123   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 124 }
 125
 126 static surf_action_t execute(void *workstation, double size)
 127 {
 128   return surf_cpu_model->extension.
 129     cpu.execute(((workstation_CLM03_t) workstation)->cpu, size);
 130 }
 131
 132 static surf_action_t action_sleep(void *workstation, double duration)
 133 {
 134   return surf_cpu_model->extension.
 135     cpu.sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 136 }
 137
 138 static void action_suspend(surf_action_t action)
 139 {
 140   if (action->model_type == surf_network_model)
 141     surf_network_model->suspend(action);
 142   else if (action->model_type == surf_cpu_model)
 143     surf_cpu_model->suspend(action);
 144   else
 145     DIE_IMPOSSIBLE;
 146 }
 147
 148 static void action_resume(surf_action_t action)
 149 {
 150   if (action->model_type == surf_network_model)
 151     surf_network_model->resume(action);
 152   else if (action->model_type == surf_cpu_model)
 153     surf_cpu_model->resume(action);
 154   else
 155     DIE_IMPOSSIBLE;
 156 }
 157
 158 static int action_is_suspended(surf_action_t action)
 159 {
 160   if (action->model_type == surf_network_model)
 161     return surf_network_model->is_suspended(action);
 162   if (action->model_type == surf_cpu_model)
 163     return surf_cpu_model->is_suspended(action);
 164   DIE_IMPOSSIBLE;
 165 }
 166
 167 static void action_set_max_duration(surf_action_t action, 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 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 static surf_action_t communicate(void *workstation_src,
 188                                  void *workstation_dst, double size,
 189                                  double rate)
 190 {
 191   workstation_CLM03_t src = (workstation_CLM03_t) workstation_src;
 192   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 193   return surf_network_model->extension.
 194     network.communicate(surf_resource_name(src->cpu),surf_resource_name(dst->cpu),
 195         src->id,dst->id,
 196         size, rate);
 197 }
 198
 199 static e_surf_resource_state_t get_state(void *workstation)
 200 {
 201   return surf_cpu_model->extension.
 202     cpu.get_state(((workstation_CLM03_t) workstation)->cpu);
 203 }
 204
 205 static double get_speed(void *workstation, double load)
 206 {
 207   return surf_cpu_model->extension.
 208     cpu.get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 209 }
 210
 211 static double get_available_speed(void *workstation)
 212 {
 213   return surf_cpu_model->extension.
 214     cpu.get_available_speed(((workstation_CLM03_t)
 215                              workstation)->cpu);
 216 }
 217
 218 static surf_action_t execute_parallel_task(int workstation_nb,
 219                                            void **workstation_list,
 220                                            double *computation_amount,
 221                                            double *communication_amount,
 222                                            double amount, double rate)
 223 {
 224   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 225 }
 226
 227
 228 /* returns an array of network_link_CM02_t */
 229 static xbt_dynar_t get_route(void *src, void *dst)
 230 {
 231   workstation_CLM03_t workstation_src = (workstation_CLM03_t) src;
 232   workstation_CLM03_t workstation_dst = (workstation_CLM03_t) dst;
 233   return surf_network_model->extension.network.get_route(workstation_src->id,
 234                                                          workstation_dst->id);
 235 }
 236
 237 static double get_link_bandwidth(const void *link)
 238 {
 239   return surf_network_model->extension.network.get_link_bandwidth(link);
 240 }
 241
 242 static double get_link_latency(const void *link)
 243 {
 244   return surf_network_model->extension.network.get_link_latency(link);
 245 }
 246
 247 static int link_shared(const void *link)
 248 {
 249   return surf_network_model->extension.network.get_link_latency(link);
 250 }
 251
 252 static void finalize(void)
 253 {
 254   surf_model_exit(surf_workstation_model);
 255   surf_workstation_model = NULL;
 256 }
 257 static xbt_dict_t get_properties(const void*ws){
 258   return surf_resource_properties(((workstation_CLM03_t)ws)->cpu);
 259 }
 260
 261 static void surf_workstation_model_init_internal(void)
 262 {
 263   surf_workstation_model = surf_model_init();
 264
 265   surf_workstation_model->name = "Workstation";
 266   surf_workstation_model->action_unref = action_unref;
 267   surf_workstation_model->action_cancel = action_cancel;
 268   surf_workstation_model->action_state_set = ws_action_state_set;
 269
 270   surf_workstation_model->model_private->resource_used = resource_used;
 271   surf_workstation_model->model_private->share_resources = share_resources;
 272   surf_workstation_model->model_private->update_actions_state =
 273     update_actions_state;
 274   surf_workstation_model->model_private->update_resource_state =
 275     update_resource_state;
 276   surf_workstation_model->model_private->finalize = finalize;
 277
 278   surf_workstation_model->suspend = action_suspend;
 279   surf_workstation_model->resume = action_resume;
 280   surf_workstation_model->is_suspended = action_is_suspended;
 281   surf_workstation_model->set_max_duration = action_set_max_duration;
 282   surf_workstation_model->set_priority = action_set_priority;
 283
 284   surf_workstation_model->extension.workstation.execute = execute;
 285   surf_workstation_model->extension.workstation.sleep = action_sleep;
 286   surf_workstation_model->extension.workstation.get_state = get_state;
 287   surf_workstation_model->extension.workstation.get_speed = get_speed;
 288   surf_workstation_model->extension.workstation.get_available_speed =
 289     get_available_speed;
 290
 291   surf_workstation_model->extension.workstation.communicate = communicate;
 292   surf_workstation_model->extension.workstation.get_route = get_route;
 293   surf_workstation_model->extension.workstation.execute_parallel_task =
 294     execute_parallel_task;
 295   surf_workstation_model->extension.workstation.get_link_bandwidth =
 296     get_link_bandwidth;
 297   surf_workstation_model->extension.workstation.get_link_latency =
 298     get_link_latency;
 299   surf_workstation_model->extension.workstation.link_shared = link_shared;
 300   surf_workstation_model->extension.workstation.get_properties = get_properties;
 301 }
 302
 303 /********************************************************************/
 304 /* The model used in MSG and presented at CCGrid03                  */
 305 /********************************************************************/
 306 /* @InProceedings{Casanova.CLM_03, */
 307 /*   author = {Henri Casanova and Arnaud Legrand and Loris Marchal}, */
 308 /*   title = {Scheduling Distributed Applications: the SimGrid Simulation Framework}, */
 309 /*   booktitle = {Proceedings of the third IEEE International Symposium on Cluster Computing and the Grid (CCGrid'03)}, */
 310 /*   publisher = {"IEEE Computer Society Press"}, */
 311 /*   month = {may}, */
 312 /*   year = {2003} */
 313 /* } */
 314 void surf_workstation_model_init_CLM03(const char *filename)
 315 {
 316   surf_workstation_model_init_internal();
 317   surf_cpu_model_init_Cas01(filename);
 318   surf_network_model_init_CM02(filename);
 319   update_model_description(surf_workstation_model_description,
 320                            "CLM03", surf_workstation_model);
 321   xbt_dynar_push(model_list, &surf_workstation_model);
 322 }
 323
 324 void surf_workstation_model_init_compound(const char *filename)
 325 {
 326
 327   xbt_assert0(surf_cpu_model, "No CPU model defined yet!");
 328   xbt_assert0(surf_network_model, "No network model defined yet!");
 329   surf_workstation_model_init_internal();
 330
 331   update_model_description(surf_workstation_model_description,
 332                            "compound", surf_workstation_model);
 333
 334   xbt_dynar_push(model_list, &surf_workstation_model);
 335 }