src/simix/smx_smurf.c

   1 #include "private.h"
   2 #include "xbt/fifo.h"
   3 #include "xbt/xbt_os_thread.h"
   4
   5 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_smurf, simix,
   6                                 "Logging specific to SIMIX (SMURF)");
   7
   8 /* Requests to handle at the end of this round of scheduling user processes */
   9 static xbt_heap_t req_todo;
  10 /* to protect the write actions in the heap */
  11 static xbt_os_mutex_t sync_req_positions;
  12
  13 void SIMIX_request_init(void)
  14 {
  15   req_todo = xbt_heap_new(5,NULL);
  16   sync_req_positions = xbt_os_mutex_init();
  17 }
  18
  19 void SIMIX_request_destroy(void)
  20 {
  21   xbt_heap_free(req_todo);
  22   xbt_os_mutex_destroy(sync_req_positions);
  23 }
  24
  25 /* FIXME: we may want to save the initialization of issuer... */
  26 XBT_INLINE smx_req_t SIMIX_req_mine() {
  27   smx_process_t issuer = SIMIX_process_self();
  28   return &issuer->request;
  29 }
  30
  31 void SIMIX_request_push()
  32 {
  33   smx_process_t issuer = SIMIX_process_self();
  34   if (issuer != simix_global->maestro_process){
  35     issuer->request.issuer = issuer;
  36
  37     if (smx_parallel_contexts)
  38       xbt_os_mutex_acquire(sync_req_positions);
  39     xbt_heap_push(req_todo,&issuer->request,issuer->pid);
  40     DEBUG4("Pushed request %s (%d) of %s; now %d requests waiting",
  41         SIMIX_request_name(issuer->request.call), issuer->request.call,
  42         issuer->name,xbt_heap_size(req_todo));
  43     if (smx_parallel_contexts)
  44       xbt_os_mutex_release(sync_req_positions);
  45
  46     DEBUG3("Yield process '%s' on request of type %s (%d)", issuer->name,
  47         SIMIX_request_name(issuer->request.call), issuer->request.call);
  48     SIMIX_process_yield();
  49   } else {
  50     SIMIX_request_pre(&issuer->request, 0);
  51   }
  52 }
  53
  54 smx_req_t SIMIX_request_pop(void)
  55 {
  56   smx_req_t req = xbt_heap_pop(req_todo);
  57   if(req)
  58     DEBUG4("Popped request %s (%d) of %s; now %d requests waiting",
  59         SIMIX_request_name(req->issuer->request.call),
  60         req->issuer->request.call,
  61         req->issuer->name,xbt_heap_size(req_todo));
  62   return req;
  63 }
  64
  65 void SIMIX_request_answer(smx_req_t req)
  66 {
  67   if (req->issuer != simix_global->maestro_process){
  68     DEBUG2("Answer request %s (%d)", SIMIX_request_name(req->call), req->call);
  69     req->issuer->request.call = REQ_NO_REQ;
  70     xbt_dynar_push_as(simix_global->process_to_run, smx_process_t, req->issuer);
  71   }
  72 }
  73
  74 void SIMIX_request_pre(smx_req_t req, int value)
  75 {
  76   switch (req->call) {
  77
  78     case REQ_COMM_TEST:
  79       SIMIX_pre_comm_test(req);
  80       break;
  81
  82     case REQ_COMM_TESTANY:
  83       SIMIX_pre_comm_testany(req, value);
  84       break;
  85
  86     case REQ_COMM_WAIT:
  87       SIMIX_pre_comm_wait(req, value);
  88       break;
  89
  90     case REQ_COMM_WAITANY:
  91       SIMIX_pre_comm_waitany(req, value);
  92       break;
  93
  94     case REQ_COMM_ISEND:
  95       req->comm_isend.result = SIMIX_comm_isend(
  96           req->issuer,
  97           req->comm_isend.rdv,
  98           req->comm_isend.task_size,
  99           req->comm_isend.rate,
 100           req->comm_isend.src_buff,
 101           req->comm_isend.src_buff_size,
 102           req->comm_isend.match_fun,
 103           req->comm_isend.data);
 104       SIMIX_request_answer(req);
 105       break;
 106
 107     case REQ_COMM_IRECV:
 108       req->comm_irecv.result = SIMIX_comm_irecv(
 109           req->issuer,
 110           req->comm_irecv.rdv,
 111           req->comm_irecv.dst_buff,
 112           req->comm_irecv.dst_buff_size,
 113           req->comm_irecv.match_fun,
 114           req->comm_irecv.data);
 115       SIMIX_request_answer(req);
 116       break;
 117
 118     case REQ_COMM_DESTROY:
 119       SIMIX_comm_destroy(req->comm_destroy.comm);
 120       SIMIX_request_answer(req);
 121       break;
 122
 123     case REQ_COMM_CANCEL:
 124       SIMIX_comm_cancel(req->comm_cancel.comm);
 125       SIMIX_request_answer(req);
 126       break;
 127
 128     case REQ_COMM_GET_REMAINS:
 129       req->comm_get_remains.result =
 130           SIMIX_comm_get_remains(req->comm_get_remains.comm);
 131       SIMIX_request_answer(req);
 132       break;
 133
 134     case REQ_COMM_GET_STATE:
 135       req->comm_get_state.result =
 136           SIMIX_comm_get_state(req->comm_get_state.comm);
 137       SIMIX_request_answer(req);
 138       break;
 139
 140     case REQ_COMM_GET_SRC_DATA:
 141       req->comm_get_src_data.result = SIMIX_comm_get_src_data(req->comm_get_src_data.comm);
 142       SIMIX_request_answer(req);
 143       break;
 144
 145     case REQ_COMM_GET_DST_DATA:
 146       req->comm_get_dst_data.result = SIMIX_comm_get_dst_data(req->comm_get_dst_data.comm);
 147       SIMIX_request_answer(req);
 148       break;
 149
 150     case REQ_COMM_GET_SRC_BUFF:
 151       req->comm_get_src_buff.result =
 152           SIMIX_comm_get_src_buff(req->comm_get_src_buff.comm);
 153       SIMIX_request_answer(req);
 154       break;
 155
 156     case REQ_COMM_GET_DST_BUFF:
 157       req->comm_get_dst_buff.result =
 158           SIMIX_comm_get_dst_buff(req->comm_get_dst_buff.comm);
 159       SIMIX_request_answer(req);
 160       break;
 161
 162     case REQ_COMM_GET_SRC_BUFF_SIZE:
 163       req->comm_get_src_buff_size.result =
 164           SIMIX_comm_get_src_buff_size(req->comm_get_src_buff_size.comm);
 165       SIMIX_request_answer(req);
 166       break;
 167
 168     case REQ_COMM_GET_DST_BUFF_SIZE:
 169       req->comm_get_dst_buff_size.result =
 170           SIMIX_comm_get_dst_buff_size(req->comm_get_dst_buff_size.comm);
 171       SIMIX_request_answer(req);
 172       break;
 173
 174     case REQ_COMM_GET_SRC_PROC:
 175       req->comm_get_src_proc.result =
 176           SIMIX_comm_get_src_proc(req->comm_get_src_proc.comm);
 177       SIMIX_request_answer(req);
 178       break;
 179
 180     case REQ_COMM_GET_DST_PROC:
 181       req->comm_get_dst_proc.result =
 182           SIMIX_comm_get_dst_proc(req->comm_get_dst_proc.comm);
 183       SIMIX_request_answer(req);
 184       break;
 185
 186 #ifdef HAVE_LATENCY_BOUND_TRACKING
 187     case REQ_COMM_IS_LATENCY_BOUNDED:
 188       req->comm_is_latency_bounded.result =
 189           SIMIX_comm_is_latency_bounded(req->comm_is_latency_bounded.comm);
 190       SIMIX_request_answer(req);
 191       break;
 192 #endif
 193
 194     case REQ_RDV_CREATE:
 195       req->rdv_create.result = SIMIX_rdv_create(req->rdv_create.name);
 196       SIMIX_request_answer(req);
 197       break;
 198
 199     case REQ_RDV_DESTROY:
 200       SIMIX_rdv_destroy(req->rdv_destroy.rdv);
 201       SIMIX_request_answer(req);
 202       break;
 203
 204     case REQ_RDV_GEY_BY_NAME:
 205       req->rdv_get_by_name.result =
 206         SIMIX_rdv_get_by_name(req->rdv_get_by_name.name);
 207       SIMIX_request_answer(req);
 208       break;
 209
 210     case REQ_RDV_COMM_COUNT_BY_HOST:
 211       req->rdv_comm_count_by_host.result = SIMIX_rdv_comm_count_by_host(
 212           req->rdv_comm_count_by_host.rdv,
 213           req->rdv_comm_count_by_host.host);
 214       SIMIX_request_answer(req);
 215       break;
 216
 217     case REQ_RDV_GET_HEAD:
 218       req->rdv_get_head.result =        SIMIX_rdv_get_head(req->rdv_get_head.rdv);
 219       SIMIX_request_answer(req);
 220       break;
 221
 222     case REQ_HOST_GET_BY_NAME:
 223       req->host_get_by_name.result =
 224         SIMIX_host_get_by_name(req->host_get_by_name.name);
 225       SIMIX_request_answer(req);
 226       break;
 227
 228     case REQ_HOST_GET_NAME:
 229       req->host_get_name.result =       SIMIX_host_get_name(req->host_get_name.host);
 230       SIMIX_request_answer(req);
 231       break;
 232
 233     case REQ_HOST_GET_PROPERTIES:
 234       req->host_get_properties.result =
 235         SIMIX_host_get_properties(req->host_get_properties.host);
 236       SIMIX_request_answer(req);
 237       break;
 238
 239     case REQ_HOST_GET_SPEED:
 240       req->host_get_speed.result =
 241         SIMIX_host_get_speed(req->host_get_speed.host);
 242       SIMIX_request_answer(req);
 243       break;
 244
 245     case REQ_HOST_GET_AVAILABLE_SPEED:
 246       req->host_get_available_speed.result =
 247         SIMIX_host_get_available_speed(req->host_get_available_speed.host);
 248       SIMIX_request_answer(req);
 249       break;
 250
 251     case REQ_HOST_GET_STATE:
 252       req->host_get_state.result =
 253         SIMIX_host_get_state(req->host_get_state.host);
 254       SIMIX_request_answer(req);
 255       break;
 256
 257     case REQ_HOST_GET_DATA:
 258       req->host_get_data.result =       SIMIX_host_get_data(req->host_get_data.host);
 259       SIMIX_request_answer(req);
 260       break;
 261
 262     case REQ_HOST_SET_DATA:
 263       SIMIX_host_set_data(req->host_set_data.host, req->host_set_data.data);
 264       SIMIX_request_answer(req);
 265       break;
 266
 267     case REQ_HOST_EXECUTE:
 268       req->host_execute.result = SIMIX_host_execute(
 269           req->host_execute.name,
 270           req->host_execute.host,
 271           req->host_execute.computation_amount);
 272       SIMIX_request_answer(req);
 273       break;
 274
 275     case REQ_HOST_PARALLEL_EXECUTE:
 276       req->host_parallel_execute.result = SIMIX_host_parallel_execute(
 277           req->host_parallel_execute.name,
 278           req->host_parallel_execute.host_nb,
 279           req->host_parallel_execute.host_list,
 280           req->host_parallel_execute.computation_amount,
 281           req->host_parallel_execute.communication_amount,
 282           req->host_parallel_execute.amount,
 283           req->host_parallel_execute.rate);
 284       SIMIX_request_answer(req);
 285       break;
 286
 287     case REQ_HOST_EXECUTION_DESTROY:
 288       SIMIX_host_execution_destroy(req->host_execution_destroy.execution);
 289       SIMIX_request_answer(req);
 290       break;
 291
 292     case REQ_HOST_EXECUTION_CANCEL:
 293       SIMIX_host_execution_cancel(req->host_execution_cancel.execution);
 294       SIMIX_request_answer(req);
 295       break;
 296
 297     case REQ_HOST_EXECUTION_GET_REMAINS:
 298       req->host_execution_get_remains.result =
 299         SIMIX_host_execution_get_remains(req->host_execution_get_remains.execution);
 300       SIMIX_request_answer(req);
 301       break;
 302
 303     case REQ_HOST_EXECUTION_GET_STATE:
 304       req->host_execution_get_state.result =
 305         SIMIX_host_execution_get_state(req->host_execution_get_state.execution);
 306       SIMIX_request_answer(req);
 307       break;
 308
 309     case REQ_HOST_EXECUTION_SET_PRIORITY:
 310       SIMIX_host_execution_set_priority(
 311           req->host_execution_set_priority.execution,
 312           req->host_execution_set_priority.priority);
 313       SIMIX_request_answer(req);
 314       break;
 315
 316     case REQ_HOST_EXECUTION_WAIT:
 317       SIMIX_pre_host_execution_wait(req);
 318       break;
 319
 320     case REQ_PROCESS_CREATE:
 321       req->process_create.result = SIMIX_process_create(
 322           req->process_create.name,
 323           req->process_create.code,
 324           req->process_create.data,
 325           req->process_create.hostname,
 326           req->process_create.argc,
 327           req->process_create.argv,
 328           req->process_create.properties);
 329       SIMIX_request_answer(req);
 330       break;
 331
 332     case REQ_PROCESS_KILL:
 333       SIMIX_process_kill(req->process_kill.process, req->issuer);
 334       SIMIX_request_answer(req);
 335       break;
 336
 337     case REQ_PROCESS_CHANGE_HOST:
 338       SIMIX_process_change_host(
 339           req->process_change_host.process,
 340           req->process_change_host.source,
 341           req->process_change_host.dest);
 342       SIMIX_request_answer(req);
 343       break;
 344
 345     case REQ_PROCESS_SUSPEND:
 346       SIMIX_pre_process_suspend(req);
 347       break;
 348
 349     case REQ_PROCESS_RESUME:
 350       SIMIX_process_resume(req->process_resume.process, req->issuer);
 351       SIMIX_request_answer(req);
 352       break;
 353
 354     case REQ_PROCESS_COUNT:
 355       req->process_count.result = SIMIX_process_count();
 356       SIMIX_request_answer(req);
 357       break;
 358
 359     case REQ_PROCESS_GET_DATA:
 360       req->process_get_data.result =
 361         SIMIX_process_get_data(req->process_get_data.process);
 362       SIMIX_request_answer(req);
 363       break;
 364
 365     case REQ_PROCESS_SET_DATA:
 366       SIMIX_process_set_data(
 367           req->process_set_data.process,
 368           req->process_set_data.data);
 369       SIMIX_request_answer(req);
 370       break;
 371
 372     case REQ_PROCESS_GET_HOST:
 373       req->process_get_host.result = SIMIX_process_get_host(req->process_get_host.process);
 374       SIMIX_request_answer(req);
 375       break;
 376
 377     case REQ_PROCESS_GET_NAME:
 378       req->process_get_name.result = SIMIX_process_get_name(req->process_get_name.process);
 379       SIMIX_request_answer(req);
 380       break;
 381
 382     case REQ_PROCESS_IS_SUSPENDED:
 383       req->process_is_suspended.result =
 384         SIMIX_process_is_suspended(req->process_is_suspended.process);
 385       SIMIX_request_answer(req);
 386       break;
 387
 388     case REQ_PROCESS_GET_PROPERTIES:
 389       req->process_get_properties.result =
 390         SIMIX_process_get_properties(req->process_get_properties.process);
 391       SIMIX_request_answer(req);
 392       break;
 393
 394     case REQ_PROCESS_SLEEP:
 395       SIMIX_pre_process_sleep(req);
 396       break;
 397
 398 #ifdef HAVE_TRACING
 399     case REQ_SET_CATEGORY:
 400       SIMIX_set_category(
 401           req->set_category.action,
 402           req->set_category.category);
 403       SIMIX_request_answer(req);
 404       break;
 405 #endif
 406
 407     case REQ_MUTEX_INIT:
 408       req->mutex_init.result = SIMIX_mutex_init();
 409       SIMIX_request_answer(req);
 410       break;
 411
 412     case REQ_MUTEX_DESTROY:
 413       SIMIX_mutex_destroy(req->mutex_destroy.mutex);
 414       SIMIX_request_answer(req);
 415       break;
 416
 417     case REQ_MUTEX_LOCK:
 418       SIMIX_pre_mutex_lock(req);
 419       break;
 420
 421     case REQ_MUTEX_TRYLOCK:
 422       req->mutex_trylock.result =
 423               SIMIX_mutex_trylock(req->mutex_trylock.mutex, req->issuer);
 424       SIMIX_request_answer(req);
 425       break;
 426
 427     case REQ_MUTEX_UNLOCK:
 428       SIMIX_mutex_unlock(req->mutex_unlock.mutex, req->issuer);
 429       SIMIX_request_answer(req);
 430       break;
 431
 432     case REQ_COND_INIT:
 433       req->cond_init.result = SIMIX_cond_init();
 434       SIMIX_request_answer(req);
 435       break;
 436
 437     case REQ_COND_DESTROY:
 438       SIMIX_cond_destroy(req->cond_destroy.cond);
 439       SIMIX_request_answer(req);
 440       break;
 441
 442     case REQ_COND_SIGNAL:
 443       SIMIX_cond_signal(req->cond_signal.cond);
 444       SIMIX_request_answer(req);
 445       break;
 446
 447     case REQ_COND_WAIT:
 448       SIMIX_pre_cond_wait(req);
 449       break;
 450
 451     case REQ_COND_WAIT_TIMEOUT:
 452       SIMIX_pre_cond_wait_timeout(req);
 453       break;
 454
 455     case REQ_COND_BROADCAST:
 456       SIMIX_cond_broadcast(req->cond_broadcast.cond);
 457       SIMIX_request_answer(req);
 458       break;
 459
 460     case REQ_SEM_INIT:
 461       req->sem_init.result = SIMIX_sem_init(req->sem_init.capacity);
 462       SIMIX_request_answer(req);
 463       break;
 464
 465     case REQ_SEM_DESTROY:
 466       SIMIX_sem_destroy(req->sem_destroy.sem);
 467       SIMIX_request_answer(req);
 468       break;
 469
 470     case REQ_SEM_RELEASE:
 471       SIMIX_sem_release(req->sem_release.sem);
 472       SIMIX_request_answer(req);
 473       break;
 474
 475     case REQ_SEM_WOULD_BLOCK:
 476       req->sem_would_block.result =
 477         SIMIX_sem_would_block(req->sem_would_block.sem);
 478       SIMIX_request_answer(req);
 479       break;
 480
 481     case REQ_SEM_ACQUIRE:
 482       SIMIX_pre_sem_acquire(req);
 483       break;
 484
 485     case REQ_SEM_ACQUIRE_TIMEOUT:
 486       SIMIX_pre_sem_acquire_timeout(req);
 487       break;
 488
 489     case REQ_SEM_GET_CAPACITY:
 490       req->sem_get_capacity.result =
 491         SIMIX_sem_get_capacity(req->sem_get_capacity.sem);
 492       SIMIX_request_answer(req);
 493       break;
 494
 495     case REQ_NO_REQ:
 496       THROW2(arg_error,0,"Asked to do the noop syscall on %s@%s",
 497           SIMIX_process_get_name(req->issuer),
 498           SIMIX_host_get_name(SIMIX_process_get_host(req->issuer))
 499           );
 500       break;
 501   }
 502 }
 503
 504 void SIMIX_request_post(smx_action_t action)
 505 {
 506   switch (action->type) {
 507
 508     case SIMIX_ACTION_EXECUTE:
 509     case SIMIX_ACTION_PARALLEL_EXECUTE:
 510       SIMIX_post_host_execute(action);
 511       break;
 512
 513     case SIMIX_ACTION_COMMUNICATE:
 514       SIMIX_post_comm(action);
 515       break;
 516
 517     case SIMIX_ACTION_SLEEP:
 518       SIMIX_post_process_sleep(action);
 519       break;
 520
 521     case SIMIX_ACTION_SYNCHRO:
 522       SIMIX_post_synchro(action);
 523       break;
 524
 525     case SIMIX_ACTION_IO:
 526       break;
 527   }
 528 }