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->host_count = 0;
 153
 154   // mallocators
 155   smpi_global->request_mallocator =
 156     xbt_mallocator_new(SMPI_REQUEST_MALLOCATOR_SIZE, smpi_request_new,
 157                        smpi_request_free, smpi_request_reset);
 158   smpi_global->message_mallocator =
 159     xbt_mallocator_new(SMPI_MESSAGE_MALLOCATOR_SIZE, smpi_message_new,
 160                        smpi_message_free, smpi_message_reset);
 161
 162   // sender/receiver processes
 163   smpi_global->main_processes = xbt_new(smx_process_t, size);
 164
 165   // timers
 166   smpi_global->timer = xbt_os_timer_new();
 167   smpi_global->timer_mutex = SIMIX_mutex_init();
 168   smpi_global->timer_cond = SIMIX_cond_init();
 169
 170   smpi_global->do_once_duration_nodes = NULL;
 171   smpi_global->do_once_duration = NULL;
 172   smpi_global->do_once_mutex = SIMIX_mutex_init();
 173
 174   smpi_global->host_count = SIMIX_host_get_number();
 175
 176   smpi_mpi_global = xbt_new(s_smpi_mpi_global_t, 1);
 177
 178   // global communicator
 179   smpi_mpi_global->mpi_comm_world = xbt_new(s_smpi_mpi_communicator_t, 1);
 180   smpi_mpi_global->mpi_comm_world->size = smpi_global->host_count;
 181   smpi_mpi_global->mpi_comm_world->barrier_count = 0;
 182   smpi_mpi_global->mpi_comm_world->barrier_mutex = SIMIX_mutex_init();
 183   smpi_mpi_global->mpi_comm_world->barrier_cond = SIMIX_cond_init();
 184   smpi_mpi_global->mpi_comm_world->rank_to_index_map =
 185     xbt_new(int, smpi_global->host_count);
 186   smpi_mpi_global->mpi_comm_world->index_to_rank_map =
 187     xbt_new(int, smpi_global->host_count);
 188   for (i = 0; i < smpi_global->host_count; i++) {
 189     smpi_mpi_global->mpi_comm_world->rank_to_index_map[i] = i;
 190     smpi_mpi_global->mpi_comm_world->index_to_rank_map[i] = i;
 191   }
 192
 193   // mpi datatypes
 194   smpi_mpi_global->mpi_byte = xbt_new(s_smpi_mpi_datatype_t, 1);
 195   smpi_mpi_global->mpi_byte->size = (size_t) 1;
 196   smpi_mpi_global->mpi_int = xbt_new(s_smpi_mpi_datatype_t, 1);
 197   smpi_mpi_global->mpi_int->size = sizeof(int);
 198   smpi_mpi_global->mpi_double = xbt_new(s_smpi_mpi_datatype_t, 1);
 199   smpi_mpi_global->mpi_double->size = sizeof(double);
 200
 201   // mpi operations
 202   smpi_mpi_global->mpi_land = xbt_new(s_smpi_mpi_op_t, 1);
 203   smpi_mpi_global->mpi_land->func = smpi_mpi_land_func;
 204   smpi_mpi_global->mpi_sum = xbt_new(s_smpi_mpi_op_t, 1);
 205   smpi_mpi_global->mpi_sum->func = smpi_mpi_sum_func;
 206
 207 }
 208
 209 void smpi_global_destroy()
 210 {
 211   smpi_do_once_duration_node_t curr, next;
 212
 213   // processes
 214   xbt_free(smpi_global->main_processes);
 215
 216   // mallocators
 217   xbt_mallocator_free(smpi_global->request_mallocator);
 218   xbt_mallocator_free(smpi_global->message_mallocator);
 219
 220   xbt_os_timer_free(smpi_global->timer);
 221   SIMIX_mutex_destroy(smpi_global->timer_mutex);
 222   SIMIX_cond_destroy(smpi_global->timer_cond);
 223
 224   for (curr = smpi_global->do_once_duration_nodes; NULL != curr; curr = next) {
 225     next = curr->next;
 226     xbt_free(curr->file);
 227     xbt_free(curr);
 228   }
 229
 230   SIMIX_mutex_destroy(smpi_global->do_once_mutex);
 231
 232   xbt_free(smpi_global);
 233   smpi_global = NULL;
 234
 235   /* free smpi_mpi_global */
 236   SIMIX_mutex_destroy(smpi_mpi_global->mpi_comm_world->barrier_mutex);
 237   SIMIX_cond_destroy(smpi_mpi_global->mpi_comm_world->barrier_cond);
 238   xbt_free(smpi_mpi_global->mpi_comm_world);
 239
 240   xbt_free(smpi_mpi_global->mpi_byte);
 241   xbt_free(smpi_mpi_global->mpi_int);
 242   xbt_free(smpi_mpi_global->mpi_double);
 243
 244   xbt_free(smpi_mpi_global->mpi_land);
 245   xbt_free(smpi_mpi_global->mpi_sum);
 246
 247   xbt_free(smpi_mpi_global);
 248
 249 }
 250
 251 int smpi_host_index()
 252 {
 253   smx_host_t host = SIMIX_host_self();
 254   smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
 255   return hdata->index;
 256 }
 257
 258 smx_mutex_t smpi_host_mutex()
 259 {
 260   smx_host_t host = SIMIX_host_self();
 261   smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
 262   return hdata->mutex;
 263 }
 264
 265 smx_cond_t smpi_host_cond()
 266 {
 267   smx_host_t host = SIMIX_host_self();
 268   smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
 269   return hdata->cond;
 270 }
 271
 272 int smpi_run_simulation(int *argc, char **argv)
 273 {
 274   smx_cond_t cond = NULL;
 275   smx_action_t action = NULL;
 276
 277   xbt_fifo_t actions_failed = xbt_fifo_new();
 278   xbt_fifo_t actions_done = xbt_fifo_new();
 279
 280   srand(SMPI_RAND_SEED);
 281
 282   SIMIX_global_init(argc, argv);
 283
 284   // parse the platform file: get the host list
 285   SIMIX_create_environment(argv[1]);
 286
 287   SIMIX_function_register("smpi_simulated_main", smpi_simulated_main);
 288   SIMIX_launch_application(argv[2]);
 289
 290   // must initialize globals between creating environment and launching app....
 291   smpi_global_init();
 292
 293   /* Prepare to display some more info when dying on Ctrl-C pressing */
 294   // FIXME: doesn't work
 295   //signal(SIGINT, inthandler);
 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   INFO1("simulation time %g", SIMIX_get_clock());
 322
 323   smpi_global_destroy();
 324
 325   SIMIX_clean();
 326
 327   return 0;
 328 }