src/smpi/smpi_global.c

   1 #include <stdio.h>
   2
   3 #include "private.h"
   4 #include "smpi_mpi_dt_private.h"
   5
   6 XBT_LOG_NEW_CATEGORY(smpi, "All SMPI categories");
   7
   8 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi,
   9                                 "Logging specific to SMPI (kernel)");
  10
  11 smpi_global_t smpi_global = NULL;
  12
  13 void *smpi_request_new(void);
  14
  15 void *smpi_request_new()
  16 {
  17   smpi_mpi_request_t request = xbt_new(s_smpi_mpi_request_t, 1);
  18
  19   request->buf = NULL;
  20   request->completed = 0;
  21   request->consumed = 0;
  22   request->mutex = SIMIX_mutex_init();
  23   request->cond = SIMIX_cond_init();
  24   request->data = NULL;
  25   request->forward = 0;
  26
  27   return request;
  28 }
  29
  30 void smpi_request_free(void *pointer);
  31
  32 void smpi_request_free(void *pointer)
  33 {
  34
  35   smpi_mpi_request_t request = pointer;
  36
  37   SIMIX_cond_destroy(request->cond);
  38   SIMIX_mutex_destroy(request->mutex);
  39   xbt_free(request);
  40
  41   return;
  42 }
  43
  44 void smpi_request_reset(void *pointer);
  45
  46 void smpi_request_reset(void *pointer)
  47 {
  48   smpi_mpi_request_t request = pointer;
  49
  50   request->buf = NULL;
  51   request->completed = 0;
  52   request->consumed = 0;
  53   request->data = NULL;
  54   request->forward = 0;
  55
  56   return;
  57 }
  58
  59
  60 void *smpi_message_new(void);
  61
  62 void *smpi_message_new()
  63 {
  64   smpi_received_message_t message = xbt_new(s_smpi_received_message_t, 1);
  65   message->buf = NULL;
  66   return message;
  67 }
  68
  69 void smpi_message_free(void *pointer);
  70
  71 void smpi_message_free(void *pointer)
  72 {
  73   xbt_free(pointer);
  74   return;
  75 }
  76
  77 void smpi_message_reset(void *pointer);
  78
  79 void smpi_message_reset(void *pointer)
  80 {
  81   smpi_received_message_t message = pointer;
  82   message->buf = NULL;
  83   return;
  84 }
  85
  86 int smpi_create_request(void *buf, int count, smpi_mpi_datatype_t datatype,
  87                         int src, int dst, int tag,
  88                         smpi_mpi_communicator_t comm,
  89                         smpi_mpi_request_t * requestptr)
  90 {
  91   int retval = MPI_SUCCESS;
  92
  93   smpi_mpi_request_t request = NULL;
  94
  95   // parameter checking prob belongs in smpi_mpi, but this is less repeat code
  96   if (NULL == buf) {
  97     retval = MPI_ERR_INTERN;
  98   } else if (0 > count) {
  99     retval = MPI_ERR_COUNT;
 100   } else if (NULL == datatype) {
 101     retval = MPI_ERR_TYPE;
 102   } else if (MPI_ANY_SOURCE != src && (0 > src || comm->size <= src)) {
 103     retval = MPI_ERR_RANK;
 104   } else if (0 > dst || comm->size <= dst) {
 105     retval = MPI_ERR_RANK;
 106   } else if (MPI_ANY_TAG != tag && 0 > tag) {
 107     retval = MPI_ERR_TAG;
 108   } else if (NULL == comm) {
 109     retval = MPI_ERR_COMM;
 110   } else if (NULL == requestptr) {
 111     retval = MPI_ERR_ARG;
 112   } else {
 113     request = xbt_mallocator_get(smpi_global->request_mallocator);
 114     request->comm = comm;
 115     request->src = src;
 116     request->dst = dst;
 117     request->tag = tag;
 118     request->buf = buf;
 119     request->datatype = datatype;
 120     request->count = count;
 121
 122     *requestptr = request;
 123   }
 124   return retval;
 125 }
 126
 127 /* FIXME: understand what they do and put the prototypes in a header file (live in smpi_base.c) */
 128 void smpi_mpi_land_func(void *a, void *b, int *length,
 129                         MPI_Datatype * datatype);
 130 void smpi_mpi_sum_func(void *a, void *b, int *length,
 131                        MPI_Datatype * datatype);
 132 void smpi_mpi_prod_func(void *a, void *b, int *length,
 133                        MPI_Datatype * datatype);
 134 void smpi_mpi_min_func(void *a, void *b, int *length,
 135                        MPI_Datatype * datatype);
 136 void smpi_mpi_max_func(void *a, void *b, int *length,
 137                        MPI_Datatype * datatype);
 138
 139 void smpi_init()
 140 {
 141   smpi_global = xbt_new(s_smpi_global_t, 1);
 142 }
 143
 144 void smpi_global_init()
 145 {
 146   int i;
 147
 148   /* Connect our log channels: that must be done manually under windows */
 149 #ifdef XBT_LOG_CONNECT
 150   XBT_LOG_CONNECT(smpi_base, smpi);
 151   XBT_LOG_CONNECT(smpi_bench, smpi);
 152   XBT_LOG_CONNECT(smpi_kernel, smpi);
 153   XBT_LOG_CONNECT(smpi_mpi, smpi);
 154   XBT_LOG_CONNECT(smpi_receiver, smpi);
 155   XBT_LOG_CONNECT(smpi_sender, smpi);
 156   XBT_LOG_CONNECT(smpi_util, smpi);
 157 #endif
 158
 159   // config vars
 160   smpi_global->reference_speed =
 161     xbt_cfg_get_double(_surf_cfg_set, "reference_speed");
 162
 163   // mallocators
 164   smpi_global->request_mallocator =
 165     xbt_mallocator_new(SMPI_REQUEST_MALLOCATOR_SIZE, smpi_request_new,
 166                        smpi_request_free, smpi_request_reset);
 167   smpi_global->message_mallocator =
 168     xbt_mallocator_new(SMPI_MESSAGE_MALLOCATOR_SIZE, smpi_message_new,
 169                        smpi_message_free, smpi_message_reset);
 170
 171   smpi_global->process_count = SIMIX_process_count();
 172   DEBUG1("There is %d processes", smpi_global->process_count);
 173
 174   // sender/receiver processes
 175   smpi_global->main_processes =
 176     xbt_new(smx_process_t, smpi_global->process_count);
 177
 178   // timers
 179   smpi_global->timer = xbt_os_timer_new();
 180   smpi_global->timer_cond = SIMIX_cond_init();
 181
 182   smpi_global->do_once_duration_nodes = NULL;
 183   smpi_global->do_once_duration = NULL;
 184   smpi_global->do_once_mutex = SIMIX_mutex_init();
 185
 186
 187   smpi_mpi_global = xbt_new(s_smpi_mpi_global_t, 1);
 188
 189   // global communicator
 190   smpi_mpi_global->mpi_comm_world = xbt_new(s_smpi_mpi_communicator_t, 1);
 191   smpi_mpi_global->mpi_comm_world->size = smpi_global->process_count;
 192   smpi_mpi_global->mpi_comm_world->barrier_count = 0;
 193   smpi_mpi_global->mpi_comm_world->barrier_mutex = SIMIX_mutex_init();
 194   smpi_mpi_global->mpi_comm_world->barrier_cond = SIMIX_cond_init();
 195   smpi_mpi_global->mpi_comm_world->rank_to_index_map =
 196     xbt_new(int, smpi_global->process_count);
 197   smpi_mpi_global->mpi_comm_world->index_to_rank_map =
 198     xbt_new(int, smpi_global->process_count);
 199   for (i = 0; i < smpi_global->process_count; i++) {
 200     smpi_mpi_global->mpi_comm_world->rank_to_index_map[i] = i;
 201     smpi_mpi_global->mpi_comm_world->index_to_rank_map[i] = i;
 202   }
 203
 204   // mpi datatypes
 205   smpi_mpi_global->mpi_byte = xbt_new(s_smpi_mpi_datatype_t, 1); /* we can think of it as a placeholder for value*/
 206   smpi_mpi_global->mpi_byte->size = (size_t) 1;
 207   smpi_mpi_global->mpi_byte->lb = (ptrdiff_t) 0;
 208   smpi_mpi_global->mpi_byte->ub = smpi_mpi_global->mpi_byte->lb + smpi_mpi_global->mpi_byte->size;
 209   smpi_mpi_global->mpi_byte->flags = DT_FLAG_BASIC;
 210
 211   smpi_mpi_global->mpi_char = xbt_new(s_smpi_mpi_datatype_t, 1);
 212   smpi_mpi_global->mpi_char->size = (size_t) 1;
 213   smpi_mpi_global->mpi_char->lb = (ptrdiff_t) 0; //&(smpi_mpi_global->mpi_char);
 214   smpi_mpi_global->mpi_char->ub = smpi_mpi_global->mpi_char->lb + smpi_mpi_global->mpi_char->size;
 215   smpi_mpi_global->mpi_char->flags = DT_FLAG_BASIC;
 216
 217   smpi_mpi_global->mpi_int = xbt_new(s_smpi_mpi_datatype_t, 1);
 218   smpi_mpi_global->mpi_int->size = sizeof(int);
 219   smpi_mpi_global->mpi_int->lb = (ptrdiff_t) 0; // &(smpi_mpi_global->mpi_int);
 220   smpi_mpi_global->mpi_int->ub = smpi_mpi_global->mpi_int->lb + smpi_mpi_global->mpi_int->size;
 221   smpi_mpi_global->mpi_int->flags = DT_FLAG_BASIC;
 222
 223   smpi_mpi_global->mpi_float = xbt_new(s_smpi_mpi_datatype_t, 1);
 224   smpi_mpi_global->mpi_float->size = sizeof(float);
 225   smpi_mpi_global->mpi_float->lb = (ptrdiff_t) 0; // &(smpi_mpi_global->mpi_float);
 226   smpi_mpi_global->mpi_float->ub = smpi_mpi_global->mpi_float->lb + smpi_mpi_global->mpi_float->size;
 227   smpi_mpi_global->mpi_float->flags = DT_FLAG_BASIC;
 228
 229   smpi_mpi_global->mpi_double = xbt_new(s_smpi_mpi_datatype_t, 1);
 230   smpi_mpi_global->mpi_double->size = sizeof(double);
 231   smpi_mpi_global->mpi_double->lb = (ptrdiff_t) 0; //&(smpi_mpi_global->mpi_float);
 232   smpi_mpi_global->mpi_double->ub = smpi_mpi_global->mpi_double->lb + smpi_mpi_global->mpi_double->size;
 233   smpi_mpi_global->mpi_double->flags = DT_FLAG_BASIC;
 234
 235   // mpi operations
 236   smpi_mpi_global->mpi_land = xbt_new(s_smpi_mpi_op_t, 1);
 237   smpi_mpi_global->mpi_land->func = smpi_mpi_land_func;
 238   smpi_mpi_global->mpi_sum = xbt_new(s_smpi_mpi_op_t, 1);
 239   smpi_mpi_global->mpi_sum->func = smpi_mpi_sum_func;
 240   smpi_mpi_global->mpi_prod = xbt_new(s_smpi_mpi_op_t, 1);
 241   smpi_mpi_global->mpi_prod->func = smpi_mpi_prod_func;
 242   smpi_mpi_global->mpi_min = xbt_new(s_smpi_mpi_op_t, 1);
 243   smpi_mpi_global->mpi_min->func = smpi_mpi_min_func;
 244   smpi_mpi_global->mpi_max = xbt_new(s_smpi_mpi_op_t, 1);
 245   smpi_mpi_global->mpi_max->func = smpi_mpi_max_func;
 246
 247 }
 248
 249 void smpi_global_destroy()
 250 {
 251   smpi_do_once_duration_node_t curr, next;
 252
 253   // processes
 254   xbt_free(smpi_global->main_processes);
 255
 256   // mallocators
 257   xbt_mallocator_free(smpi_global->request_mallocator);
 258   xbt_mallocator_free(smpi_global->message_mallocator);
 259
 260   xbt_os_timer_free(smpi_global->timer);
 261   SIMIX_cond_destroy(smpi_global->timer_cond);
 262
 263   for (curr = smpi_global->do_once_duration_nodes; NULL != curr; curr = next) {
 264     next = curr->next;
 265     xbt_free(curr->file);
 266     xbt_free(curr);
 267   }
 268
 269   SIMIX_mutex_destroy(smpi_global->do_once_mutex);
 270
 271   xbt_free(smpi_global);
 272   smpi_global = NULL;
 273
 274   /* free smpi_mpi_global */
 275   SIMIX_mutex_destroy(smpi_mpi_global->mpi_comm_world->barrier_mutex);
 276   SIMIX_cond_destroy(smpi_mpi_global->mpi_comm_world->barrier_cond);
 277   xbt_free(smpi_mpi_global->mpi_comm_world->rank_to_index_map);
 278   xbt_free(smpi_mpi_global->mpi_comm_world);
 279
 280   xbt_free(smpi_mpi_global->mpi_byte);
 281   xbt_free(smpi_mpi_global->mpi_char);
 282   xbt_free(smpi_mpi_global->mpi_int);
 283   xbt_free(smpi_mpi_global->mpi_double);
 284   xbt_free(smpi_mpi_global->mpi_float);
 285
 286   xbt_free(smpi_mpi_global->mpi_land);
 287   xbt_free(smpi_mpi_global->mpi_sum);
 288   xbt_free(smpi_mpi_global->mpi_prod);
 289   xbt_free(smpi_mpi_global->mpi_max);
 290   xbt_free(smpi_mpi_global->mpi_min);
 291
 292   xbt_free(smpi_mpi_global);
 293
 294 }
 295
 296 int smpi_process_index()
 297 {
 298   smpi_process_data_t pdata =
 299     (smpi_process_data_t) SIMIX_process_get_data(SIMIX_process_self());
 300   return pdata->index;
 301 }
 302
 303 smx_mutex_t smpi_process_mutex()
 304 {
 305   smpi_process_data_t pdata =
 306     (smpi_process_data_t) SIMIX_process_get_data(SIMIX_process_self());
 307   return pdata->mutex;
 308 }
 309
 310 smx_cond_t smpi_process_cond()
 311 {
 312   smpi_process_data_t pdata =
 313     (smpi_process_data_t) SIMIX_process_get_data(SIMIX_process_self());
 314   return pdata->cond;
 315 }
 316
 317 static void smpi_cfg_cb_host_speed(const char *name, int pos)
 318 {
 319   smpi_global->reference_speed =
 320     xbt_cfg_get_double_at(_surf_cfg_set, name, pos);
 321 }
 322
 323 int smpi_run_simulation(int *argc, char **argv)
 324 {
 325   srand(SMPI_RAND_SEED);
 326
 327   double default_reference_speed = 20000.0;
 328   xbt_cfg_register(&_surf_cfg_set, "reference_speed",
 329                    "Power of the host running the simulation (in flop/s). Used to bench the operations.",
 330                    xbt_cfgelm_double, &default_reference_speed, 1, 1,
 331                    smpi_cfg_cb_host_speed, NULL);
 332
 333   int default_display_timing = 0;
 334   xbt_cfg_register(&_surf_cfg_set, "display_timing",
 335                    "Boolean indicating whether we should display the timing after simulation.",
 336                    xbt_cfgelm_int, &default_display_timing, 1, 1, NULL, NULL);
 337
 338   // Allocate minimal things before parsing command line arguments
 339   smpi_init();
 340
 341   SIMIX_global_init(argc, argv);
 342
 343
 344   // parse the platform file: get the host list
 345   SIMIX_create_environment(argv[1]);
 346
 347   SIMIX_function_register("smpi_simulated_main", smpi_simulated_main);
 348   SIMIX_launch_application(argv[2]);
 349
 350   // must initialize globals between creating environment and launching app....
 351   smpi_global_init();
 352
 353   /* Clean IO before the run */
 354   fflush(stdout);
 355   fflush(stderr);
 356   SIMIX_init();
 357
 358   while (SIMIX_solve(NULL, NULL) != -1.0);
 359
 360   // FIXME: cleanup incomplete
 361
 362   if (xbt_cfg_get_int(_surf_cfg_set, "display_timing"))
 363     INFO1("simulation time %g", SIMIX_get_clock());
 364
 365   smpi_global_destroy();
 366   SIMIX_clean();
 367
 368   return 0;
 369 }
 370
 371 int main(int argc, char** argv)
 372 {
 373   return smpi_run_simulation(&argc, argv);
 374 }