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   int size = SIMIX_host_get_number();
 134
 135   /* Connect our log channels: that must be done manually under windows */
 136 #ifdef XBT_LOG_CONNECT
 137   XBT_LOG_CONNECT(smpi_base, smpi);
 138   XBT_LOG_CONNECT(smpi_bench, smpi);
 139   XBT_LOG_CONNECT(smpi_kernel, smpi);
 140   XBT_LOG_CONNECT(smpi_mpi, smpi);
 141   XBT_LOG_CONNECT(smpi_receiver, smpi);
 142   XBT_LOG_CONNECT(smpi_sender, smpi);
 143   XBT_LOG_CONNECT(smpi_util, smpi);
 144 #endif
 145
 146   smpi_global = xbt_new(s_smpi_global_t, 1);
 147   // config variable
 148   smpi_global->reference_speed = SMPI_DEFAULT_SPEED;
 149
 150   // host info blank until sim starts
 151   // FIXME: is this okay?
 152   smpi_global->hosts = NULL;
 153   smpi_global->host_count = 0;
 154
 155   // mallocators
 156   smpi_global->request_mallocator =
 157     xbt_mallocator_new(SMPI_REQUEST_MALLOCATOR_SIZE, smpi_request_new,
 158                        smpi_request_free, smpi_request_reset);
 159   smpi_global->message_mallocator =
 160     xbt_mallocator_new(SMPI_MESSAGE_MALLOCATOR_SIZE, smpi_message_new,
 161                        smpi_message_free, smpi_message_reset);
 162
 163   // sender/receiver processes
 164   smpi_global->main_processes = xbt_new(smx_process_t, size);
 165
 166   // timers
 167   smpi_global->timer = xbt_os_timer_new();
 168   smpi_global->timer_mutex = SIMIX_mutex_init();
 169   smpi_global->timer_cond = SIMIX_cond_init();
 170
 171   smpi_global->do_once_duration_nodes = NULL;
 172   smpi_global->do_once_duration = NULL;
 173   smpi_global->do_once_mutex = SIMIX_mutex_init();
 174
 175   smpi_global->hosts = SIMIX_host_get_table();
 176   smpi_global->host_count = SIMIX_host_get_number();
 177
 178   smpi_mpi_global = xbt_new(s_smpi_mpi_global_t, 1);
 179
 180   // global communicator
 181   smpi_mpi_global->mpi_comm_world = xbt_new(s_smpi_mpi_communicator_t, 1);
 182   smpi_mpi_global->mpi_comm_world->size = smpi_global->host_count;
 183   smpi_mpi_global->mpi_comm_world->barrier_count = 0;
 184   smpi_mpi_global->mpi_comm_world->barrier_mutex = SIMIX_mutex_init();
 185   smpi_mpi_global->mpi_comm_world->barrier_cond = SIMIX_cond_init();
 186   smpi_mpi_global->mpi_comm_world->rank_to_index_map =
 187     xbt_new(int, smpi_global->host_count);
 188   smpi_mpi_global->mpi_comm_world->index_to_rank_map =
 189     xbt_new(int, smpi_global->host_count);
 190   for (i = 0; i < smpi_global->host_count; i++) {
 191     smpi_mpi_global->mpi_comm_world->rank_to_index_map[i] = i;
 192     smpi_mpi_global->mpi_comm_world->index_to_rank_map[i] = i;
 193   }
 194
 195   // mpi datatypes
 196   smpi_mpi_global->mpi_byte = xbt_new(s_smpi_mpi_datatype_t, 1);
 197   smpi_mpi_global->mpi_byte->size = (size_t) 1;
 198   smpi_mpi_global->mpi_int = xbt_new(s_smpi_mpi_datatype_t, 1);
 199   smpi_mpi_global->mpi_int->size = sizeof(int);
 200   smpi_mpi_global->mpi_double = xbt_new(s_smpi_mpi_datatype_t, 1);
 201   smpi_mpi_global->mpi_double->size = sizeof(double);
 202
 203   // mpi operations
 204   smpi_mpi_global->mpi_land = xbt_new(s_smpi_mpi_op_t, 1);
 205   smpi_mpi_global->mpi_land->func = smpi_mpi_land_func;
 206   smpi_mpi_global->mpi_sum = xbt_new(s_smpi_mpi_op_t, 1);
 207   smpi_mpi_global->mpi_sum->func = smpi_mpi_sum_func;
 208
 209 }
 210
 211 void smpi_global_destroy()
 212 {
 213   smpi_do_once_duration_node_t curr, next;
 214
 215   // processes
 216   xbt_free(smpi_global->main_processes);
 217
 218   // mallocators
 219   xbt_mallocator_free(smpi_global->request_mallocator);
 220   xbt_mallocator_free(smpi_global->message_mallocator);
 221
 222   xbt_os_timer_free(smpi_global->timer);
 223   SIMIX_mutex_destroy(smpi_global->timer_mutex);
 224   SIMIX_cond_destroy(smpi_global->timer_cond);
 225
 226   for (curr = smpi_global->do_once_duration_nodes; NULL != curr; curr = next) {
 227     next = curr->next;
 228     xbt_free(curr->file);
 229     xbt_free(curr);
 230   }
 231
 232   SIMIX_mutex_destroy(smpi_global->do_once_mutex);
 233
 234   xbt_free(smpi_global);
 235   smpi_global = NULL;
 236
 237   /* free smpi_mpi_global */
 238   SIMIX_mutex_destroy(smpi_mpi_global->mpi_comm_world->barrier_mutex);
 239   SIMIX_cond_destroy(smpi_mpi_global->mpi_comm_world->barrier_cond);
 240   xbt_free(smpi_mpi_global->mpi_comm_world);
 241
 242   xbt_free(smpi_mpi_global->mpi_byte);
 243   xbt_free(smpi_mpi_global->mpi_int);
 244   xbt_free(smpi_mpi_global->mpi_double);
 245
 246   xbt_free(smpi_mpi_global->mpi_land);
 247   xbt_free(smpi_mpi_global->mpi_sum);
 248
 249   xbt_free(smpi_mpi_global);
 250
 251 }
 252
 253 int smpi_host_index()
 254 {
 255   smx_host_t host = SIMIX_host_self();
 256   smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
 257   return hdata->index;
 258 }
 259
 260 smx_mutex_t smpi_host_mutex()
 261 {
 262   smx_host_t host = SIMIX_host_self();
 263   smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
 264   return hdata->mutex;
 265 }
 266
 267 smx_cond_t smpi_host_cond()
 268 {
 269   smx_host_t host = SIMIX_host_self();
 270   smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
 271   return hdata->cond;
 272 }
 273
 274 int smpi_run_simulation(int *argc, char **argv)
 275 {
 276   smx_cond_t cond = NULL;
 277   smx_action_t action = NULL;
 278
 279   xbt_fifo_t actions_failed = xbt_fifo_new();
 280   xbt_fifo_t actions_done = xbt_fifo_new();
 281
 282   srand(SMPI_RAND_SEED);
 283
 284   SIMIX_global_init(argc, argv);
 285
 286   // parse the platform file: get the host list
 287   SIMIX_create_environment(argv[1]);
 288
 289   SIMIX_function_register("smpi_simulated_main", smpi_simulated_main);
 290   SIMIX_launch_application(argv[2]);
 291
 292   // must initialize globals between creating environment and launching app....
 293   smpi_global_init();
 294
 295   /* Prepare to display some more info when dying on Ctrl-C pressing */
 296   // FIXME: doesn't work
 297   //signal(SIGINT, inthandler);
 298
 299   /* Clean IO before the run */
 300   fflush(stdout);
 301   fflush(stderr);
 302   SIMIX_init();
 303
 304   while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
 305     while ((action = xbt_fifo_pop(actions_failed))) {
 306       DEBUG1("** %s failed **", action->name);
 307       while ((cond = xbt_fifo_pop(action->cond_list))) {
 308         SIMIX_cond_broadcast(cond);
 309       }
 310     }
 311     while ((action = xbt_fifo_pop(actions_done))) {
 312       DEBUG1("** %s done **", action->name);
 313       while ((cond = xbt_fifo_pop(action->cond_list))) {
 314         SIMIX_cond_broadcast(cond);
 315       }
 316     }
 317   }
 318
 319   // FIXME: cleanup incomplete
 320   xbt_fifo_free(actions_failed);
 321   xbt_fifo_free(actions_done);
 322
 323   INFO1("simulation time %g", SIMIX_get_clock());
 324
 325   smpi_global_destroy();
 326
 327   SIMIX_clean();
 328
 329   return 0;
 330 }