Exemple #1
0
void
_gfortran_caf_deregister (caf_token_t *token, int *stat, char *errmsg, int errmsg_len)
{
  if (unlikely (caf_is_finalized))
    {
      const char msg[] = "Failed to deallocate coarray - "
			  "there are stopped images";
      if (stat)
	{
	  *stat = STAT_STOPPED_IMAGE;
	
	  if (errmsg_len > 0)
	    {
	      int len = ((int) sizeof (msg) - 1 > errmsg_len)
			? errmsg_len : (int) sizeof (msg) - 1;
	      memcpy (errmsg, msg, len);
	      if (errmsg_len > len)
		memset (&errmsg[len], ' ', errmsg_len-len);
	    }
	  return;
	}
      caf_runtime_error (msg);
    }

  _gfortran_caf_sync_all (NULL, NULL, 0);

  if (stat)
    *stat = 0;

  free (TOKEN (*token)[caf_this_image-1]);
  free (*token);
}
Exemple #2
0
void
_gfortran_caf_sync_all (int *stat, char *errmsg, int errmsg_len)
{
  int ierr;

  if (unlikely (caf_is_finalized))
    ierr = STAT_STOPPED_IMAGE;
  else
    ierr = MPI_Barrier (MPI_COMM_WORLD);
 
  if (stat)
    *stat = ierr;

  if (ierr)
    {
      char *msg;
      if (caf_is_finalized)
	msg = "SYNC ALL failed - there are stopped images";
      else
	msg = "SYNC ALL failed";

      if (errmsg_len > 0)
	{
	  int len = ((int) strlen (msg) > errmsg_len) ? errmsg_len
						      : (int) strlen (msg);
	  memcpy (errmsg, msg, len);
	  if (errmsg_len > len)
	    memset (&errmsg[len], ' ', errmsg_len-len);
	}
      else
	caf_runtime_error (msg);
    }
}
void *
_gfortran_caf_register (size_t size, caf_register_t type, caf_token_t *token,
			int *stat, char *errmsg, int errmsg_len)
{
  void *local;

  if (type == CAF_REGTYPE_LOCK_STATIC || type == CAF_REGTYPE_LOCK_ALLOC
      || type == CAF_REGTYPE_CRITICAL || type == CAF_REGTYPE_EVENT_STATIC
      || type == CAF_REGTYPE_EVENT_ALLOC)
    local = calloc (size, sizeof (bool));
  else
    local = malloc (size);
  *token = malloc (sizeof (single_token_t));

  if (unlikely (local == NULL || token == NULL))
    {
      const char msg[] = "Failed to allocate coarray";
      if (stat)
	{
	  *stat = 1;
	  if (errmsg_len > 0)
	    {
	      int len = ((int) sizeof (msg) > errmsg_len) ? errmsg_len
							  : (int) sizeof (msg);
	      memcpy (errmsg, msg, len);
	      if (errmsg_len > len)
		memset (&errmsg[len], ' ', errmsg_len-len);
	    }
	  return NULL;
	}
      else
	  caf_runtime_error (msg);
    }

  *token = local;

  if (stat)
    *stat = 0;

  if (type == CAF_REGTYPE_COARRAY_STATIC || type == CAF_REGTYPE_LOCK_STATIC
      || type == CAF_REGTYPE_CRITICAL || type == CAF_REGTYPE_EVENT_STATIC
      || type == CAF_REGTYPE_EVENT_ALLOC)
    {
      caf_static_t *tmp = malloc (sizeof (caf_static_t));
      tmp->prev  = caf_static_list;
      tmp->token = *token;
      caf_static_list = tmp;
    }
  return local;
}
Exemple #4
0
/* SYNC IMAGES. Note: SYNC IMAGES(*) is passed as count == -1 while
   SYNC IMAGES([]) has count == 0. Note further that SYNC IMAGES(*)
   is not equivalent to SYNC ALL. */
void
_gfortran_caf_sync_images (int count, int images[], int *stat, char *errmsg,
			   int errmsg_len)
{
  int ierr;
  if (count == 0 || (count == 1 && images[0] == caf_this_image))
    {
      if (stat)
	*stat = 0;
      return;
    }

#ifdef GFC_CAF_CHECK
  {
    int i;

    for (i = 0; i < count; i++)
      if (images[i] < 1 || images[i] > caf_num_images)
	{
	  fprintf (stderr, "COARRAY ERROR: Invalid image index %d to SYNC "
		   "IMAGES", images[i]);
	  error_stop (1);
	}
  }
#endif

  /* FIXME: SYNC IMAGES with a nontrivial argument cannot easily be
     mapped to MPI communicators. Thus, exist early with an error message.  */
  if (count > 0)
    {
      fprintf (stderr, "COARRAY ERROR: SYNC IMAGES not yet implemented");
      error_stop (1);
    }

  /* Handle SYNC IMAGES(*).  */
  if (unlikely (caf_is_finalized))
    ierr = STAT_STOPPED_IMAGE;
  else
    ierr = MPI_Barrier (MPI_COMM_WORLD);

  if (stat)
    *stat = ierr;

  if (ierr)
    {
      char *msg;
      if (caf_is_finalized)
	msg = "SYNC IMAGES failed - there are stopped images";
      else
	msg = "SYNC IMAGES failed";

      if (errmsg_len > 0)
	{
	  int len = ((int) strlen (msg) > errmsg_len) ? errmsg_len
						      : (int) strlen (msg);
	  memcpy (errmsg, msg, len);
	  if (errmsg_len > len)
	    memset (&errmsg[len], ' ', errmsg_len-len);
	}
      else
	caf_runtime_error (msg);
    }
}
Exemple #5
0
void *
_gfortran_caf_register (size_t size, caf_register_t type, caf_token_t *token,
			int *stat, char *errmsg, int errmsg_len)
{
  void *local;
  int err;

  if (unlikely (caf_is_finalized))
    goto error;

  /* Start MPI if not already started.  */
  if (caf_num_images == 0)
    _gfortran_caf_init (NULL, NULL);

  /* Token contains only a list of pointers.  */
  local = malloc (size);
  *token = malloc (sizeof (mpi_token_t) * caf_num_images);

  if (unlikely (local == NULL || *token == NULL))
    goto error;

  /* token[img-1] is the address of the token in image "img".  */
  err = MPI_Allgather (&local, sizeof (void*), MPI_BYTE, TOKEN (*token),
		       sizeof (void*), MPI_BYTE, MPI_COMM_WORLD);

  if (unlikely (err))
    {
      free (local);
      free (*token);
      goto error;
    }

  if (type == CAF_REGTYPE_COARRAY_STATIC)
    {
      caf_static_t *tmp = malloc (sizeof (caf_static_t));
      tmp->prev  = caf_static_list;
      tmp->token = *token;
      caf_static_list = tmp;
    }

  if (stat)
    *stat = 0;

  return local;

error:
  {
    char *msg;

    if (caf_is_finalized)
      msg = "Failed to allocate coarray - there are stopped images";
    else
      msg = "Failed to allocate coarray";

    if (stat)
      {
	*stat = caf_is_finalized ? STAT_STOPPED_IMAGE : 1;
	if (errmsg_len > 0)
	  {
	    int len = ((int) strlen (msg) > errmsg_len) ? errmsg_len
							: (int) strlen (msg);
	    memcpy (errmsg, msg, len);
	    if (errmsg_len > len)
	      memset (&errmsg[len], ' ', errmsg_len-len);
	  }
      }
    else
      caf_runtime_error (msg);
  }

  return NULL;
}