Kill another useless synchronization source: no one will interupt you in simulation

[simgrid.git] / src / smpi / smpi_base.c

diff --git a/src/smpi/smpi_base.c b/src/smpi/smpi_base.c
index 98992b9..8137545 100644 (file)
--- a/src/smpi/smpi_base.c
+++ b/src/smpi/smpi_base.c
@@ -46,26 +46,20 @@ int smpi_mpi_comm_rank(smpi_mpi_communicator_t comm)
   return comm->index_to_rank_map[smpi_host_index()];
 }
 
   return comm->index_to_rank_map[smpi_host_index()];
 }
 

-void smpi_mpi_init()
+void smpi_init_process()

 {
   smx_host_t host;
 {
   smx_host_t host;

-  smx_host_t *hosts;
-  int host_count;

   int i;
   smpi_host_data_t hdata;
 
   int i;
   smpi_host_data_t hdata;
 

-  SIMIX_mutex_lock(smpi_global->running_hosts_count_mutex);

   smpi_global->running_hosts_count++;
   smpi_global->running_hosts_count++;

-  SIMIX_mutex_unlock(smpi_global->running_hosts_count_mutex);

 
   // initialize some local variables
   host = SIMIX_host_self();
 
   // initialize some local variables
   host = SIMIX_host_self();

-  hosts = SIMIX_host_get_table();
-  host_count = SIMIX_host_get_number();

 
   hdata = xbt_new(s_smpi_host_data_t, 1);
 
 
   hdata = xbt_new(s_smpi_host_data_t, 1);
 

-  for (i = 0; i < host_count && host != hosts[i]; i++);
+  for (i = 0; i < smpi_global->host_count && host != smpi_global->hosts[i]; i++);

 
   hdata->index = i;
   hdata->mutex = SIMIX_mutex_init();
 
   hdata->index = i;
   hdata->mutex = SIMIX_mutex_init();


@@ -73,73 +67,6 @@ void smpi_mpi_init()
 
   SIMIX_host_set_data(host, hdata);
 
 
   SIMIX_host_set_data(host, hdata);
 

-  // node 0 sets the globals
-  if (0 == i) {
-
-    smpi_global->hosts = hosts;
-    smpi_global->host_count = host_count;
-
-    smpi_mpi_global = xbt_new(s_smpi_mpi_global_t, 1);
-
-    // global communicator
-    smpi_mpi_global->mpi_comm_world = xbt_new(s_smpi_mpi_communicator_t, 1);
-    smpi_mpi_global->mpi_comm_world->size = host_count;
-    smpi_mpi_global->mpi_comm_world->barrier_count = 0;
-    smpi_mpi_global->mpi_comm_world->barrier_mutex = SIMIX_mutex_init();
-    smpi_mpi_global->mpi_comm_world->barrier_cond = SIMIX_cond_init();
-    smpi_mpi_global->mpi_comm_world->rank_to_index_map =
-      xbt_new(int, host_count);
-    smpi_mpi_global->mpi_comm_world->index_to_rank_map =
-      xbt_new(int, host_count);
-    for (i = 0; i < host_count; i++) {
-      smpi_mpi_global->mpi_comm_world->rank_to_index_map[i] = i;
-      smpi_mpi_global->mpi_comm_world->index_to_rank_map[i] = i;
-    }
-
-    // mpi datatypes
-    smpi_mpi_global->mpi_byte = xbt_new(s_smpi_mpi_datatype_t, 1);
-    smpi_mpi_global->mpi_byte->size = (size_t) 1;
-    smpi_mpi_global->mpi_int = xbt_new(s_smpi_mpi_datatype_t, 1);
-    smpi_mpi_global->mpi_int->size = sizeof(int);
-    smpi_mpi_global->mpi_double = xbt_new(s_smpi_mpi_datatype_t, 1);
-    smpi_mpi_global->mpi_double->size = sizeof(double);
-
-    // mpi operations
-    smpi_mpi_global->mpi_land = xbt_new(s_smpi_mpi_op_t, 1);
-    smpi_mpi_global->mpi_land->func = smpi_mpi_land_func;
-    smpi_mpi_global->mpi_sum = xbt_new(s_smpi_mpi_op_t, 1);
-    smpi_mpi_global->mpi_sum->func = smpi_mpi_sum_func;
-
-    // signal all nodes to perform initialization
-    SIMIX_mutex_lock(smpi_global->start_stop_mutex);
-    smpi_global->root_ready = 1;
-    SIMIX_cond_broadcast(smpi_global->start_stop_cond);
-    SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-
-  } else {
-
-    // make sure root is done before own initialization
-    SIMIX_mutex_lock(smpi_global->start_stop_mutex);
-    while (!smpi_global->root_ready) {
-      SIMIX_cond_wait(smpi_global->start_stop_cond,
-                      smpi_global->start_stop_mutex);
-    }
-    SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-
-  }
-
-  // wait for all nodes to signal initializatin complete
-  SIMIX_mutex_lock(smpi_global->start_stop_mutex);
-  smpi_global->ready_process_count++;
-  if (smpi_global->ready_process_count >= 3 * host_count) {
-    SIMIX_cond_broadcast(smpi_global->start_stop_cond);
-  }
-  while (smpi_global->ready_process_count < 3 * host_count) {
-    SIMIX_cond_wait(smpi_global->start_stop_cond,
-                    smpi_global->start_stop_mutex);
-  }
-  SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-

   return;
 }
 
   return;
 }
 


@@ -147,13 +74,7 @@ void smpi_mpi_finalize()
 {
   int i;
 
 {
   int i;
 

-  SIMIX_mutex_lock(smpi_global->running_hosts_count_mutex);

   i = --smpi_global->running_hosts_count;
   i = --smpi_global->running_hosts_count;

-  SIMIX_mutex_unlock(smpi_global->running_hosts_count_mutex);
-
-  SIMIX_mutex_lock(smpi_global->start_stop_mutex);
-  smpi_global->ready_process_count--;
-  SIMIX_mutex_unlock(smpi_global->start_stop_mutex);

 
   SIMIX_mutex_destroy(smpi_host_mutex());
   SIMIX_cond_destroy(smpi_host_cond());
 
   SIMIX_mutex_destroy(smpi_host_mutex());
   SIMIX_cond_destroy(smpi_host_cond());


@@ -213,10 +134,7 @@ int smpi_mpi_isend(smpi_mpi_request_t request)
   if (NULL == request) {
     retval = MPI_ERR_INTERN;
   } else {
   if (NULL == request) {
     retval = MPI_ERR_INTERN;
   } else {

-    SIMIX_mutex_lock(smpi_global->pending_send_request_queues_mutexes[index]);

     xbt_fifo_push(smpi_global->pending_send_request_queues[index], request);
     xbt_fifo_push(smpi_global->pending_send_request_queues[index], request);

-    SIMIX_mutex_unlock(smpi_global->pending_send_request_queues_mutexes
-                       [index]);

 
     if (SIMIX_process_is_suspended(smpi_global->sender_processes[index])) {
       SIMIX_process_resume(smpi_global->sender_processes[index]);
 
     if (SIMIX_process_is_suspended(smpi_global->sender_processes[index])) {
       SIMIX_process_resume(smpi_global->sender_processes[index]);


@@ -234,10 +152,7 @@ int smpi_mpi_irecv(smpi_mpi_request_t request)
   if (NULL == request) {
     retval = MPI_ERR_INTERN;
   } else {
   if (NULL == request) {
     retval = MPI_ERR_INTERN;
   } else {

-    SIMIX_mutex_lock(smpi_global->pending_recv_request_queues_mutexes[index]);

     xbt_fifo_push(smpi_global->pending_recv_request_queues[index], request);
     xbt_fifo_push(smpi_global->pending_recv_request_queues[index], request);

-    SIMIX_mutex_unlock(smpi_global->pending_recv_request_queues_mutexes
-                       [index]);

 
     if (SIMIX_process_is_suspended(smpi_global->receiver_processes[index])) {
       SIMIX_process_resume(smpi_global->receiver_processes[index]);
 
     if (SIMIX_process_is_suspended(smpi_global->receiver_processes[index])) {
       SIMIX_process_resume(smpi_global->receiver_processes[index]);