X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3d25ce2fc68666d4b674c4f710cde362aa584632..d53d00d608a60a6f05e77ea7b7cd5c4e544d7ab1:/src/smpi/colls/alltoall-ring-mpi-barrier.c

diff --git a/src/smpi/colls/alltoall-ring-mpi-barrier.c b/src/smpi/colls/alltoall-ring-mpi-barrier.c
deleted file mode 100644
index 970a2653a7..0000000000
--- a/src/smpi/colls/alltoall-ring-mpi-barrier.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/* Copyright (c) 2013-2014. The SimGrid Team.
- * All rights reserved.                                                     */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "colls_private.h"
-/*****************************************************************************
-
- * Function: alltoall_ring_mpi_barrier
-
- * Return: int
-
- * Inputs:
-    send_buff: send input buffer
-    send_count: number of elements to send
-    send_type: data type of elements being sent
-    recv_buff: receive output buffer
-    recv_count: number of elements to received
-    recv_type: data type of elements being received
-    comm: communicator
-
- * Descrp: Function works in P - 1 steps. In step i, node j - i -> j -> j + i.
-           MPI barriers are added between each two phases.
-
- * Auther: Ahmad Faraj
-
- ****************************************************************************/
-int
-smpi_coll_tuned_alltoall_ring_mpi_barrier(void *send_buff, int send_count,
-                                          MPI_Datatype send_type,
-                                          void *recv_buff, int recv_count,
-                                          MPI_Datatype recv_type, MPI_Comm comm)
-{
-  MPI_Status s;
-  MPI_Aint send_chunk, recv_chunk;
-  int i, src, dst, rank, num_procs;
-  int tag = COLL_TAG_ALLTOALL;
-
-  char *send_ptr = (char *) send_buff;
-  char *recv_ptr = (char *) recv_buff;
-
-  rank = smpi_comm_rank(comm);
-  num_procs = smpi_comm_size(comm);
-  send_chunk = smpi_datatype_get_extent(send_type);
-  recv_chunk = smpi_datatype_get_extent(recv_type);
-
-  send_chunk *= send_count;
-  recv_chunk *= recv_count;
-
-  for (i = 0; i < num_procs; i++) {
-    src = (rank - i + num_procs) % num_procs;
-    dst = (rank + i) % num_procs;
-
-    mpi_coll_barrier_fun(comm);
-    smpi_mpi_sendrecv(send_ptr + dst * send_chunk, send_count, send_type, dst,
-                 tag, recv_ptr + src * recv_chunk, recv_count, recv_type,
-                 src, tag, comm, &s);
-  }
-
-  return MPI_SUCCESS;
-}