src/smpi/smpi_global.c

   1 #include <stdio.h>
   2
   3 #include "private.h"
   4
   5 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi, XBT_LOG_ROOT_CAT, "All SMPI categories");
   6
   7 smpi_global_t     smpi_global     = NULL;
   8
   9 void *smpi_request_new(void);
  10
  11 void *smpi_request_new()
  12 {
  13         smpi_mpi_request_t request = xbt_new(s_smpi_mpi_request_t, 1);
  14
  15         request->buf       = NULL;
  16         request->completed = 0;
  17         request->mutex     = SIMIX_mutex_init();
  18         request->cond      = SIMIX_cond_init();
  19         request->data      = NULL;
  20         request->forward   = 0;
  21
  22         return request;
  23 }
  24
  25 void smpi_request_free(void *pointer);
  26
  27 void smpi_request_free(void *pointer)
  28 {
  29
  30         smpi_mpi_request_t request = pointer;
  31
  32         SIMIX_cond_destroy(request->cond);
  33         SIMIX_mutex_destroy(request->mutex);
  34         xbt_free(request);
  35
  36         return;
  37 }
  38
  39 void smpi_request_reset(void *pointer);
  40
  41 void smpi_request_reset(void *pointer)
  42 {
  43         smpi_mpi_request_t request = pointer;
  44
  45         request->buf       = NULL;
  46         request->completed = 0;
  47         request->data      = NULL;
  48         request->forward   = 0;
  49
  50         return;
  51 }
  52
  53
  54 void *smpi_message_new(void);
  55
  56 void *smpi_message_new()
  57 {
  58         smpi_received_message_t message = xbt_new(s_smpi_received_message_t, 1);
  59         message->buf = NULL;
  60         return message;
  61 }
  62
  63 void smpi_message_free(void *pointer);
  64
  65 void smpi_message_free(void *pointer)
  66 {
  67         xbt_free(pointer);
  68         return;
  69 }
  70
  71 void smpi_message_reset(void *pointer);
  72
  73 void smpi_message_reset(void *pointer)
  74 {
  75         smpi_received_message_t message = pointer;
  76         message->buf = NULL;
  77         return;
  78 }
  79
  80 int smpi_create_request(void *buf, int count, smpi_mpi_datatype_t datatype,
  81         int src, int dst, int tag, smpi_mpi_communicator_t comm, smpi_mpi_request_t *requestptr)
  82 {
  83         int retval = MPI_SUCCESS;
  84
  85         smpi_mpi_request_t request = NULL;
  86
  87         // parameter checking prob belongs in smpi_mpi, but this is less repeat code
  88         if (NULL == buf) {
  89                 retval = MPI_ERR_INTERN;
  90         } else if (0 > count) {
  91                 retval = MPI_ERR_COUNT;
  92         } else if (NULL == datatype) {
  93                 retval = MPI_ERR_TYPE;
  94         } else if (MPI_ANY_SOURCE != src && (0 > src || comm->size <= src)) {
  95                 retval = MPI_ERR_RANK;
  96         } else if (0 > dst || comm->size <= dst) {
  97                 retval = MPI_ERR_RANK;
  98         } else if (MPI_ANY_TAG != tag && 0 > tag) {
  99                 retval = MPI_ERR_TAG;
 100         } else if (NULL == comm) {
 101                 retval = MPI_ERR_COMM;
 102         } else if (NULL == requestptr) {
 103                 retval = MPI_ERR_ARG;
 104         } else {
 105                 request           = xbt_mallocator_get(smpi_global->request_mallocator);
 106                 request->comm     = comm;
 107                 request->src      = src;
 108                 request->dst      = dst;
 109                 request->tag      = tag;
 110                 request->buf      = buf;
 111                 request->datatype = datatype;
 112                 request->count    = count;
 113
 114                 *requestptr       = request;
 115         }
 116         return retval;
 117 }
 118
 119 void smpi_global_init()
 120 {
 121         int i;
 122
 123         int size = SIMIX_host_get_number();
 124
 125         smpi_global                                      = xbt_new(s_smpi_global_t, 1);
 126
 127         // config variable
 128         smpi_global->reference_speed                     = SMPI_DEFAULT_SPEED;
 129
 130         smpi_global->root_ready                          = 0;
 131         smpi_global->ready_process_count                 = 0;
 132
 133         // start/stop
 134         smpi_global->start_stop_mutex                    = SIMIX_mutex_init();
 135         smpi_global->start_stop_cond                     = SIMIX_cond_init();
 136
 137         // host info blank until sim starts
 138         // FIXME: is this okay?
 139         smpi_global->hosts                               = NULL;
 140         smpi_global->host_count                          = 0;
 141
 142         // running hosts
 143         smpi_global->running_hosts_count_mutex           = SIMIX_mutex_init();
 144         smpi_global->running_hosts_count                 = 0;
 145
 146         // mallocators
 147         smpi_global->request_mallocator                  = xbt_mallocator_new(SMPI_REQUEST_MALLOCATOR_SIZE,
 148                                                              smpi_request_new, smpi_request_free, smpi_request_reset);
 149         smpi_global->message_mallocator                  = xbt_mallocator_new(SMPI_MESSAGE_MALLOCATOR_SIZE,
 150                                                              smpi_message_new, smpi_message_free, smpi_message_reset);
 151
 152         // queues
 153         smpi_global->pending_send_request_queues         = xbt_new(xbt_fifo_t,  size);
 154         smpi_global->pending_send_request_queues_mutexes = xbt_new(smx_mutex_t, size);
 155         smpi_global->pending_recv_request_queues         = xbt_new(xbt_fifo_t,  size);
 156         smpi_global->pending_recv_request_queues_mutexes = xbt_new(smx_mutex_t, size);
 157         smpi_global->received_message_queues             = xbt_new(xbt_fifo_t,  size);
 158         smpi_global->received_message_queues_mutexes     = xbt_new(smx_mutex_t, size);
 159
 160         // sender/receiver processes
 161         smpi_global->sender_processes                    = xbt_new(smx_process_t, size);
 162         smpi_global->receiver_processes                  = xbt_new(smx_process_t, size);
 163
 164         // timers
 165         smpi_global->timer                               = xbt_os_timer_new();
 166         smpi_global->timer_mutex                         = SIMIX_mutex_init();
 167         smpi_global->timer_cond                          = SIMIX_cond_init();
 168
 169         for(i = 0; i < size; i++) {
 170                 smpi_global->pending_send_request_queues[i]         = xbt_fifo_new();
 171                 smpi_global->pending_send_request_queues_mutexes[i] = SIMIX_mutex_init();
 172                 smpi_global->pending_recv_request_queues[i]         = xbt_fifo_new();
 173                 smpi_global->pending_recv_request_queues_mutexes[i] = SIMIX_mutex_init();
 174                 smpi_global->received_message_queues[i]             = xbt_fifo_new();
 175                 smpi_global->received_message_queues_mutexes[i]     = SIMIX_mutex_init();
 176         }
 177
 178 }
 179
 180 void smpi_global_destroy()
 181 {
 182         int i;
 183
 184         int size = SIMIX_host_get_number();
 185
 186         // start/stop
 187         SIMIX_mutex_destroy(smpi_global->start_stop_mutex);
 188         SIMIX_cond_destroy(smpi_global->start_stop_cond);
 189
 190         // processes
 191         xbt_free(smpi_global->sender_processes);
 192         xbt_free(smpi_global->receiver_processes);
 193
 194         // running hosts
 195         SIMIX_mutex_destroy(smpi_global->running_hosts_count_mutex);
 196
 197         // mallocators
 198         xbt_mallocator_free(smpi_global->request_mallocator);
 199         xbt_mallocator_free(smpi_global->message_mallocator);
 200
 201         xbt_os_timer_free(smpi_global->timer);
 202         SIMIX_mutex_destroy(smpi_global->timer_mutex);
 203         SIMIX_cond_destroy(smpi_global->timer_cond);
 204
 205         for(i = 0; i < size; i++) {
 206                 xbt_fifo_free(smpi_global->pending_send_request_queues[i]);
 207                 SIMIX_mutex_destroy(smpi_global->pending_send_request_queues_mutexes[i]);
 208                 xbt_fifo_free(smpi_global->pending_recv_request_queues[i]);
 209                 SIMIX_mutex_destroy(smpi_global->pending_recv_request_queues_mutexes[i]);
 210                 xbt_fifo_free(smpi_global->received_message_queues[i]);
 211                 SIMIX_mutex_destroy(smpi_global->received_message_queues_mutexes[i]);
 212         }
 213
 214         xbt_free(smpi_global->pending_send_request_queues);
 215         xbt_free(smpi_global->pending_send_request_queues_mutexes);
 216         xbt_free(smpi_global->pending_recv_request_queues);
 217         xbt_free(smpi_global->pending_recv_request_queues_mutexes);
 218         xbt_free(smpi_global->received_message_queues);
 219         xbt_free(smpi_global->received_message_queues_mutexes);
 220
 221         xbt_free(smpi_global);
 222
 223         smpi_global = NULL;
 224 }
 225
 226 int smpi_host_index()
 227 {
 228         smx_host_t host = SIMIX_host_self();
 229         smpi_host_data_t hdata = (smpi_host_data_t)SIMIX_host_get_data(host);
 230
 231         return hdata->index;
 232 }
 233
 234 int smpi_run_simulation(int argc, char **argv)
 235 {
 236         xbt_fifo_item_t cond_item   = NULL;
 237         smx_cond_t   cond           = NULL;
 238         xbt_fifo_item_t action_item = NULL;
 239         smx_action_t action         = NULL;
 240
 241         xbt_fifo_t   actions_failed = xbt_fifo_new();
 242         xbt_fifo_t   actions_done   = xbt_fifo_new();
 243
 244         srand(SMPI_RAND_SEED);
 245
 246         SIMIX_global_init(&argc, argv);
 247
 248         SIMIX_function_register("smpi_simulated_main", smpi_simulated_main);
 249         SIMIX_function_register("smpi_sender",         smpi_sender);
 250         SIMIX_function_register("smpi_receiver",       smpi_receiver);
 251
 252         // FIXME: ought to verify these files...
 253         SIMIX_create_environment(argv[1]);
 254
 255         // must initialize globals between creating environment and launching app....
 256         smpi_global_init();
 257
 258         SIMIX_launch_application(argv[2]);
 259
 260         /* Prepare to display some more info when dying on Ctrl-C pressing */
 261         // FIXME: doesn't work
 262         //signal(SIGINT, inthandler);
 263
 264         /* Clean IO before the run */
 265         fflush(stdout);
 266         fflush(stderr);
 267
 268         while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
 269                 xbt_fifo_foreach(actions_failed, action_item, action, smx_action_t) {
 270                         DEBUG1("** %s failed **", action->name);
 271                         xbt_fifo_foreach(action->cond_list, cond_item, cond, smx_cond_t) {
 272                                 SIMIX_cond_broadcast(cond);
 273                         }
 274                 }
 275                 xbt_fifo_foreach(actions_done, action_item, action, smx_action_t) {
 276                         DEBUG1("** %s done **",action->name);
 277                         xbt_fifo_foreach(action->cond_list, cond_item, cond, smx_cond_t) {
 278                                 SIMIX_cond_broadcast(cond);
 279                         }
 280                 }
 281         }
 282
 283         // FIXME: cleanup incomplete
 284         xbt_fifo_free(actions_failed);
 285         xbt_fifo_free(actions_done);
 286
 287         INFO1("simulation time %g", SIMIX_get_clock());
 288
 289         smpi_global_destroy();
 290
 291         SIMIX_clean();
 292
 293         return 0;
 294 }