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

diff --git a/src/smpi/colls/alltoallv-ring.c b/src/smpi/colls/alltoallv-ring.c
deleted file mode 100644
index 3f2ced2ab7..0000000000
--- a/src/smpi/colls/alltoallv-ring.c
+++ /dev/null
@@ -1,64 +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
-
- * 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.
-
- * Auther: Ahmad Faraj
-
- ****************************************************************************/
-int
-smpi_coll_tuned_alltoallv_ring(void *send_buff, int *send_counts, int *send_disps,
-	                      MPI_Datatype send_type,
-			      void *recv_buff, int *recv_counts, int *recv_disps, 
-			      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_ALLTOALLV;
-
-  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);
-  int pof2 = ((num_procs != 0) && ((num_procs & (~num_procs + 1)) == num_procs));
-  for (i = 0; i < num_procs; i++) {
-  
-    if (pof2 == 1) {
-      /* use exclusive-or algorithm */
-      src = dst = rank ^ i;
-    } else {
-      src = (rank - i + num_procs) % num_procs;
-      dst = (rank + i) % num_procs;
-    }
-
-    smpi_mpi_sendrecv(send_ptr + send_disps[dst] * send_chunk, send_counts[dst], send_type, dst,
-                 tag, recv_ptr + recv_disps[src] * recv_chunk, recv_counts[src], recv_type,
-                 src, tag, comm, &s);
-
-  }
-  return MPI_SUCCESS;
-}