src/smpi/smpi_global.c

   1 #include <stdio.h>
   2
   3 #include "private.h"
   4
   5 XBT_LOG_NEW_CATEGORY(smpi, "All SMPI categories");
   6
   7 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi,
   8                                 "Logging specific to SMPI (kernel)");
   9
  10 smpi_global_t smpi_global = NULL;
  11
  12 void *smpi_request_new(void);
  13
  14 void *smpi_request_new()
  15 {
  16   smpi_mpi_request_t request = xbt_new(s_smpi_mpi_request_t, 1);
  17
  18   request->buf = NULL;
  19   request->completed = 0;
  20   request->mutex = SIMIX_mutex_init();
  21   request->cond = SIMIX_cond_init();
  22   request->data = NULL;
  23   request->forward = 0;
  24
  25   return request;
  26 }
  27
  28 void smpi_request_free(void *pointer);
  29
  30 void smpi_request_free(void *pointer)
  31 {
  32
  33   smpi_mpi_request_t request = pointer;
  34
  35   SIMIX_cond_destroy(request->cond);
  36   SIMIX_mutex_destroy(request->mutex);
  37   xbt_free(request);
  38
  39   return;
  40 }
  41
  42 void smpi_request_reset(void *pointer);
  43
  44 void smpi_request_reset(void *pointer)
  45 {
  46   smpi_mpi_request_t request = pointer;
  47
  48   request->buf = NULL;
  49   request->completed = 0;
  50   request->data = NULL;
  51   request->forward = 0;
  52
  53   return;
  54 }
  55
  56
  57 void *smpi_message_new(void);
  58
  59 void *smpi_message_new()
  60 {
  61   smpi_received_message_t message = xbt_new(s_smpi_received_message_t, 1);
  62   message->buf = NULL;
  63   return message;
  64 }
  65
  66 void smpi_message_free(void *pointer);
  67
  68 void smpi_message_free(void *pointer)
  69 {
  70   xbt_free(pointer);
  71   return;
  72 }
  73
  74 void smpi_message_reset(void *pointer);
  75
  76 void smpi_message_reset(void *pointer)
  77 {
  78   smpi_received_message_t message = pointer;
  79   message->buf = NULL;
  80   return;
  81 }
  82
  83 int smpi_create_request(void *buf, int count, smpi_mpi_datatype_t datatype,
  84                         int src, int dst, int tag,
  85                         smpi_mpi_communicator_t comm,
  86                         smpi_mpi_request_t * requestptr)
  87 {
  88   int retval = MPI_SUCCESS;
  89
  90   smpi_mpi_request_t request = NULL;
  91
  92   // parameter checking prob belongs in smpi_mpi, but this is less repeat code
  93   if (NULL == buf) {
  94     retval = MPI_ERR_INTERN;
  95   } else if (0 > count) {
  96     retval = MPI_ERR_COUNT;
  97   } else if (NULL == datatype) {
  98     retval = MPI_ERR_TYPE;
  99   } else if (MPI_ANY_SOURCE != src && (0 > src || comm->size <= src)) {
 100     retval = MPI_ERR_RANK;
 101   } else if (0 > dst || comm->size <= dst) {
 102     retval = MPI_ERR_RANK;
 103   } else if (MPI_ANY_TAG != tag && 0 > tag) {
 104     retval = MPI_ERR_TAG;
 105   } else if (NULL == comm) {
 106     retval = MPI_ERR_COMM;
 107   } else if (NULL == requestptr) {
 108     retval = MPI_ERR_ARG;
 109   } else {
 110     request = xbt_mallocator_get(smpi_global->request_mallocator);
 111     request->comm = comm;
 112     request->src = src;
 113     request->dst = dst;
 114     request->tag = tag;
 115     request->buf = buf;
 116     request->datatype = datatype;
 117     request->count = count;
 118
 119     *requestptr = request;
 120   }
 121   return retval;
 122 }
 123 /* FIXME: understand what they do and put the prototypes in a header file (live in smpi_base.c) */
 124 void smpi_mpi_land_func(void *a, void *b, int *length,
 125                         MPI_Datatype * datatype);
 126 void smpi_mpi_sum_func(void *a, void *b, int *length,
 127                        MPI_Datatype * datatype);
 128
 129 void smpi_global_init()
 130 {
 131   int i;
 132
 133   /* Connect our log channels: that must be done manually under windows */
 134 #ifdef XBT_LOG_CONNECT
 135   XBT_LOG_CONNECT(smpi_base, smpi);
 136   XBT_LOG_CONNECT(smpi_bench, smpi);
 137   XBT_LOG_CONNECT(smpi_kernel, smpi);
 138   XBT_LOG_CONNECT(smpi_mpi, smpi);
 139   XBT_LOG_CONNECT(smpi_receiver, smpi);
 140   XBT_LOG_CONNECT(smpi_sender, smpi);
 141   XBT_LOG_CONNECT(smpi_util, smpi);
 142 #endif
 143
 144   smpi_global = xbt_new(s_smpi_global_t, 1);
 145
 146   // mallocators
 147   smpi_global->request_mallocator =
 148     xbt_mallocator_new(SMPI_REQUEST_MALLOCATOR_SIZE, smpi_request_new,
 149                        smpi_request_free, smpi_request_reset);
 150   smpi_global->message_mallocator =
 151     xbt_mallocator_new(SMPI_MESSAGE_MALLOCATOR_SIZE, smpi_message_new,
 152                        smpi_message_free, smpi_message_reset);
 153
 154   smpi_global->process_count = SIMIX_process_count();
 155   DEBUG1("There is %d processes",smpi_global->process_count);
 156
 157   // sender/receiver processes
 158   smpi_global->main_processes = xbt_new(smx_process_t, smpi_global->process_count);
 159
 160   // timers
 161   smpi_global->timer = xbt_os_timer_new();
 162   smpi_global->timer_mutex = SIMIX_mutex_init();
 163   smpi_global->timer_cond = SIMIX_cond_init();
 164
 165   smpi_global->do_once_duration_nodes = NULL;
 166   smpi_global->do_once_duration = NULL;
 167   smpi_global->do_once_mutex = SIMIX_mutex_init();
 168
 169
 170   smpi_mpi_global = xbt_new(s_smpi_mpi_global_t, 1);
 171
 172   // global communicator
 173   smpi_mpi_global->mpi_comm_world = xbt_new(s_smpi_mpi_communicator_t, 1);
 174   smpi_mpi_global->mpi_comm_world->size = smpi_global->process_count;
 175   smpi_mpi_global->mpi_comm_world->barrier_count = 0;
 176   smpi_mpi_global->mpi_comm_world->barrier_mutex = SIMIX_mutex_init();
 177   smpi_mpi_global->mpi_comm_world->barrier_cond = SIMIX_cond_init();
 178   smpi_mpi_global->mpi_comm_world->rank_to_index_map =
 179     xbt_new(int, smpi_global->process_count);
 180   smpi_mpi_global->mpi_comm_world->index_to_rank_map =
 181     xbt_new(int, smpi_global->process_count);
 182   for (i = 0; i < smpi_global->process_count; i++) {
 183     smpi_mpi_global->mpi_comm_world->rank_to_index_map[i] = i;
 184     smpi_mpi_global->mpi_comm_world->index_to_rank_map[i] = i;
 185   }
 186
 187   // mpi datatypes
 188   smpi_mpi_global->mpi_byte = xbt_new(s_smpi_mpi_datatype_t, 1);
 189   smpi_mpi_global->mpi_byte->size = (size_t) 1;
 190   smpi_mpi_global->mpi_int = xbt_new(s_smpi_mpi_datatype_t, 1);
 191   smpi_mpi_global->mpi_int->size = sizeof(int);
 192   smpi_mpi_global->mpi_double = xbt_new(s_smpi_mpi_datatype_t, 1);
 193   smpi_mpi_global->mpi_double->size = sizeof(double);
 194
 195   // mpi operations
 196   smpi_mpi_global->mpi_land = xbt_new(s_smpi_mpi_op_t, 1);
 197   smpi_mpi_global->mpi_land->func = smpi_mpi_land_func;
 198   smpi_mpi_global->mpi_sum = xbt_new(s_smpi_mpi_op_t, 1);
 199   smpi_mpi_global->mpi_sum->func = smpi_mpi_sum_func;
 200
 201 }
 202
 203 void smpi_global_destroy()
 204 {
 205   smpi_do_once_duration_node_t curr, next;
 206
 207   // processes
 208   xbt_free(smpi_global->main_processes);
 209
 210   // mallocators
 211   xbt_mallocator_free(smpi_global->request_mallocator);
 212   xbt_mallocator_free(smpi_global->message_mallocator);
 213
 214   xbt_os_timer_free(smpi_global->timer);
 215   SIMIX_mutex_destroy(smpi_global->timer_mutex);
 216   SIMIX_cond_destroy(smpi_global->timer_cond);
 217
 218   for (curr = smpi_global->do_once_duration_nodes; NULL != curr; curr = next) {
 219     next = curr->next;
 220     xbt_free(curr->file);
 221     xbt_free(curr);
 222   }
 223
 224   SIMIX_mutex_destroy(smpi_global->do_once_mutex);
 225
 226   xbt_free(smpi_global);
 227   smpi_global = NULL;
 228
 229   /* free smpi_mpi_global */
 230   SIMIX_mutex_destroy(smpi_mpi_global->mpi_comm_world->barrier_mutex);
 231   SIMIX_cond_destroy(smpi_mpi_global->mpi_comm_world->barrier_cond);
 232   xbt_free(smpi_mpi_global->mpi_comm_world);
 233
 234   xbt_free(smpi_mpi_global->mpi_byte);
 235   xbt_free(smpi_mpi_global->mpi_int);
 236   xbt_free(smpi_mpi_global->mpi_double);
 237
 238   xbt_free(smpi_mpi_global->mpi_land);
 239   xbt_free(smpi_mpi_global->mpi_sum);
 240
 241   xbt_free(smpi_mpi_global);
 242
 243 }
 244
 245 int smpi_process_index()
 246 {
 247   smpi_process_data_t pdata = (smpi_process_data_t) SIMIX_process_get_data(SIMIX_process_self());
 248   return pdata->index;
 249 }
 250
 251 smx_mutex_t smpi_process_mutex()
 252 {
 253   smpi_process_data_t pdata = (smpi_process_data_t) SIMIX_process_get_data(SIMIX_process_self());
 254   return pdata->mutex;
 255 }
 256
 257 smx_cond_t smpi_process_cond()
 258 {
 259   smpi_process_data_t pdata = (smpi_process_data_t) SIMIX_process_get_data(SIMIX_process_self());
 260   return pdata->cond;
 261 }
 262
 263 static void smpi_cfg_cb_host_speed(const char *name, int pos) {
 264         smpi_global->reference_speed = xbt_cfg_get_double_at(_surf_cfg_set,name,pos);
 265 }
 266
 267 int smpi_run_simulation(int *argc, char **argv)
 268 {
 269   smx_cond_t cond = NULL;
 270   smx_action_t action = NULL;
 271
 272   xbt_fifo_t actions_failed = xbt_fifo_new();
 273   xbt_fifo_t actions_done = xbt_fifo_new();
 274
 275   srand(SMPI_RAND_SEED);
 276
 277   double default_reference_speed = 20000.0;
 278   xbt_cfg_register(&_surf_cfg_set,"reference_speed","Power of the host running the simulation (in flop/s). Used to bench the operations.",
 279                   xbt_cfgelm_double,&default_reference_speed,1,1,smpi_cfg_cb_host_speed,NULL);
 280
 281   int default_display_timing = 0;
 282   xbt_cfg_register(&_surf_cfg_set,"display_timing","Boolean indicating whether we should display the timing after simulation.",
 283                   xbt_cfgelm_int,&default_display_timing,1,1,NULL,NULL);
 284
 285   SIMIX_global_init(argc, argv);
 286
 287
 288   // parse the platform file: get the host list
 289   SIMIX_create_environment(argv[1]);
 290
 291   SIMIX_function_register("smpi_simulated_main", smpi_simulated_main);
 292   SIMIX_launch_application(argv[2]);
 293
 294   // must initialize globals between creating environment and launching app....
 295   smpi_global_init();
 296
 297   /* Clean IO before the run */
 298   fflush(stdout);
 299   fflush(stderr);
 300   SIMIX_init();
 301
 302   while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
 303     while ((action = xbt_fifo_pop(actions_failed))) {
 304       DEBUG1("** %s failed **", action->name);
 305       while ((cond = xbt_fifo_pop(action->cond_list))) {
 306         SIMIX_cond_broadcast(cond);
 307       }
 308     }
 309     while ((action = xbt_fifo_pop(actions_done))) {
 310       DEBUG1("** %s done **", action->name);
 311       while ((cond = xbt_fifo_pop(action->cond_list))) {
 312         SIMIX_cond_broadcast(cond);
 313       }
 314     }
 315   }
 316
 317   // FIXME: cleanup incomplete
 318   xbt_fifo_free(actions_failed);
 319   xbt_fifo_free(actions_done);
 320
 321
 322   if (xbt_cfg_get_int(_surf_cfg_set,"display_timing"))
 323           INFO1("simulation time %g", SIMIX_get_clock());
 324
 325   smpi_global_destroy();
 326   SIMIX_clean();
 327
 328   return 0;
 329 }