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 #include "network_common.h"
  13
  14 typedef struct workstation_CLM03 {
  15   s_surf_resource_t generic_resource; /* Must remain first to add this to a trace */
  16   void *cpu;
  17   int id;
  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,
  26                                            void *cpu, int id)
  27 {
  28   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  29
  30   workstation->generic_resource.model = surf_workstation_model;
  31   workstation->generic_resource.name = xbt_strdup(name);
  32   workstation->cpu = cpu;
  33   workstation->id = id;
  34
  35   xbt_dict_set(surf_model_resource_set(surf_workstation_model), name,
  36                workstation, surf_resource_free);
  37
  38   return workstation;
  39 }
  40
  41 void create_workstations(void)
  42 {
  43   xbt_dict_cursor_t cursor = NULL;
  44   char *name = NULL;
  45   void *cpu = NULL;
  46
  47   xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, name, cpu) {
  48     int *id = xbt_dict_get_or_null(used_routing->host_id,name);
  49     xbt_assert1(id, "No host %s found in the platform file", name);
  50
  51     workstation_new(name, cpu, *id);
  52   }
  53 }
  54
  55 static int resource_used(void *resource_id)
  56 {
  57   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  58 }
  59
  60 static void parallel_action_cancel(surf_action_t action)
  61 {
  62   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  63 }
  64
  65 static int parallel_action_free(surf_action_t action)
  66 {
  67   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  68 }
  69
  70 static int action_unref(surf_action_t action)
  71 {
  72   if (action->model_type == surf_network_model)
  73     return surf_network_model->action_unref(action);
  74   else if (action->model_type == surf_cpu_model)
  75     return surf_cpu_model->action_unref(action);
  76   else if (action->model_type == surf_workstation_model)
  77     return parallel_action_free(action);
  78   else
  79     DIE_IMPOSSIBLE;
  80   return 0;
  81 }
  82
  83 static void action_cancel(surf_action_t action)
  84 {
  85   if (action->model_type == surf_network_model)
  86     surf_network_model->action_cancel(action);
  87   else if (action->model_type == surf_cpu_model)
  88     surf_cpu_model->action_cancel(action);
  89   else if (action->model_type == surf_workstation_model)
  90     parallel_action_cancel(action);
  91   else
  92     DIE_IMPOSSIBLE;
  93   return;
  94 }
  95
  96 static void ws_action_state_set(surf_action_t action,
  97                                 e_surf_action_state_t state)
  98 {
  99   if (action->model_type == surf_network_model)
 100     surf_network_model->action_state_set(action, state);
 101   else if (action->model_type == surf_cpu_model)
 102     surf_cpu_model->action_state_set(action, state);
 103   else if (action->model_type == surf_workstation_model)
 104     surf_action_state_set(action, state);
 105   else
 106     DIE_IMPOSSIBLE;
 107   return;
 108 }
 109
 110 static double share_resources(double now)
 111 {
 112   return -1.0;
 113 }
 114
 115 static void update_actions_state(double now, double delta)
 116 {
 117   return;
 118 }
 119
 120 static void update_resource_state(void *id,
 121                                   tmgr_trace_event_t event_type,
 122                                   double value, double date)
 123 {
 124   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 125 }
 126
 127 static surf_action_t execute(void *workstation, double size)
 128 {
 129   return surf_cpu_model->extension.
 130     cpu.execute(((workstation_CLM03_t) workstation)->cpu, size);
 131 }
 132
 133 static surf_action_t action_sleep(void *workstation, double duration)
 134 {
 135   return surf_cpu_model->extension.
 136     cpu.sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 137 }
 138
 139 static void action_suspend(surf_action_t action)
 140 {
 141   if (action->model_type == surf_network_model)
 142     surf_network_model->suspend(action);
 143   else if (action->model_type == surf_cpu_model)
 144     surf_cpu_model->suspend(action);
 145   else
 146     DIE_IMPOSSIBLE;
 147 }
 148
 149 static void action_resume(surf_action_t action)
 150 {
 151   if (action->model_type == surf_network_model)
 152     surf_network_model->resume(action);
 153   else if (action->model_type == surf_cpu_model)
 154     surf_cpu_model->resume(action);
 155   else
 156     DIE_IMPOSSIBLE;
 157 }
 158
 159 static int action_is_suspended(surf_action_t action)
 160 {
 161   if (action->model_type == surf_network_model)
 162     return surf_network_model->is_suspended(action);
 163   if (action->model_type == surf_cpu_model)
 164     return surf_cpu_model->is_suspended(action);
 165   DIE_IMPOSSIBLE;
 166 }
 167
 168 static void action_set_max_duration(surf_action_t action, double duration)
 169 {
 170   if (action->model_type == surf_network_model)
 171     surf_network_model->set_max_duration(action, duration);
 172   else if (action->model_type == surf_cpu_model)
 173     surf_cpu_model->set_max_duration(action, duration);
 174   else
 175     DIE_IMPOSSIBLE;
 176 }
 177
 178 static void action_set_priority(surf_action_t action, double priority)
 179 {
 180   if (action->model_type == surf_network_model)
 181     surf_network_model->set_priority(action, priority);
 182   else if (action->model_type == surf_cpu_model)
 183     surf_cpu_model->set_priority(action, priority);
 184   else
 185     DIE_IMPOSSIBLE;
 186 }
 187
 188 static surf_action_t communicate(void *workstation_src,
 189                                  void *workstation_dst, double size,
 190                                  double rate)
 191 {
 192   workstation_CLM03_t src = (workstation_CLM03_t) workstation_src;
 193   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 194   return surf_network_model->extension.
 195     network.communicate(surf_resource_name(src->cpu),surf_resource_name(dst->cpu),
 196         src->id,dst->id,
 197         size, rate);
 198 }
 199
 200 static e_surf_cpu_state_t get_state(void *workstation)
 201 {
 202   return surf_cpu_model->extension.
 203     cpu.get_state(((workstation_CLM03_t) workstation)->cpu);
 204 }
 205
 206 static double get_speed(void *workstation, double load)
 207 {
 208   return surf_cpu_model->extension.
 209     cpu.get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 210 }
 211
 212 static double get_available_speed(void *workstation)
 213 {
 214   return surf_cpu_model->extension.
 215     cpu.get_available_speed(((workstation_CLM03_t)
 216                              workstation)->cpu);
 217 }
 218
 219 static surf_action_t execute_parallel_task(int workstation_nb,
 220                                            void **workstation_list,
 221                                            double *computation_amount,
 222                                            double *communication_amount,
 223                                            double amount, double rate)
 224 {
 225   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 226 }
 227
 228
 229 /* returns an array of network_link_CM02_t */
 230 static xbt_dynar_t get_route(void *src, void *dst)
 231 {
 232   workstation_CLM03_t workstation_src = (workstation_CLM03_t) src;
 233   workstation_CLM03_t workstation_dst = (workstation_CLM03_t) dst;
 234   return surf_network_model->extension.network.get_route(workstation_src->id,
 235                                                          workstation_dst->id);
 236 }
 237
 238 static double get_link_bandwidth(const void *link)
 239 {
 240   return surf_network_model->extension.network.get_link_bandwidth(link);
 241 }
 242
 243 static double get_link_latency(const void *link)
 244 {
 245   return surf_network_model->extension.network.get_link_latency(link);
 246 }
 247
 248 static int link_shared(const void *link)
 249 {
 250   return surf_network_model->extension.network.get_link_latency(link);
 251 }
 252
 253 static void finalize(void)
 254 {
 255   surf_model_exit(surf_workstation_model);
 256   surf_workstation_model = NULL;
 257 }
 258
 259 static void surf_workstation_model_init_internal(void)
 260 {
 261   surf_workstation_model = surf_model_init();
 262
 263   surf_workstation_model->name = "Workstation";
 264   surf_workstation_model->action_unref = action_unref;
 265   surf_workstation_model->action_cancel = action_cancel;
 266   surf_workstation_model->action_state_set = ws_action_state_set;
 267
 268   surf_workstation_model->model_private->resource_used = resource_used;
 269   surf_workstation_model->model_private->share_resources = share_resources;
 270   surf_workstation_model->model_private->update_actions_state =
 271     update_actions_state;
 272   surf_workstation_model->model_private->update_resource_state =
 273     update_resource_state;
 274   surf_workstation_model->model_private->finalize = finalize;
 275
 276   surf_workstation_model->suspend = action_suspend;
 277   surf_workstation_model->resume = action_resume;
 278   surf_workstation_model->is_suspended = action_is_suspended;
 279   surf_workstation_model->set_max_duration = action_set_max_duration;
 280   surf_workstation_model->set_priority = action_set_priority;
 281
 282   surf_workstation_model->extension.workstation.execute = execute;
 283   surf_workstation_model->extension.workstation.sleep = action_sleep;
 284   surf_workstation_model->extension.workstation.get_state = get_state;
 285   surf_workstation_model->extension.workstation.get_speed = get_speed;
 286   surf_workstation_model->extension.workstation.get_available_speed =
 287     get_available_speed;
 288
 289   surf_workstation_model->extension.workstation.communicate = communicate;
 290   surf_workstation_model->extension.workstation.get_route = get_route;
 291   surf_workstation_model->extension.workstation.execute_parallel_task =
 292     execute_parallel_task;
 293   surf_workstation_model->extension.workstation.get_link_bandwidth =
 294     get_link_bandwidth;
 295   surf_workstation_model->extension.workstation.get_link_latency =
 296     get_link_latency;
 297   surf_workstation_model->extension.workstation.link_shared = link_shared;
 298 }
 299
 300 /********************************************************************/
 301 /* The model used in MSG and presented at CCGrid03                  */
 302 /********************************************************************/
 303 /* @InProceedings{Casanova.CLM_03, */
 304 /*   author = {Henri Casanova and Arnaud Legrand and Loris Marchal}, */
 305 /*   title = {Scheduling Distributed Applications: the SimGrid Simulation Framework}, */
 306 /*   booktitle = {Proceedings of the third IEEE International Symposium on Cluster Computing and the Grid (CCGrid'03)}, */
 307 /*   publisher = {"IEEE Computer Society Press"}, */
 308 /*   month = {may}, */
 309 /*   year = {2003} */
 310 /* } */
 311 void surf_workstation_model_init_CLM03(const char *filename)
 312 {
 313   surf_workstation_model_init_internal();
 314   surf_cpu_model_init_Cas01(filename);
 315   surf_network_model_init_CM02(filename);
 316   update_model_description(surf_workstation_model_description,
 317                            "CLM03", surf_workstation_model);
 318   xbt_dynar_push(model_list, &surf_workstation_model);
 319 }
 320
 321 void surf_workstation_model_init_compound(const char *filename)
 322 {
 323
 324   xbt_assert0(surf_cpu_model, "No CPU model defined yet!");
 325   xbt_assert0(surf_network_model, "No network model defined yet!");
 326   surf_workstation_model_init_internal();
 327
 328   update_model_description(surf_workstation_model_description,
 329                            "compound", surf_workstation_model);
 330
 331   xbt_dynar_push(model_list, &surf_workstation_model);
 332 }