Move collective algorithms to separate folders

[simgrid.git] / src / smpi / colls / allreduce-rab2.cpp

diff --git a/src/smpi/colls/allreduce-rab2.cpp b/src/smpi/colls/allreduce-rab2.cpp
deleted file mode 100644 (file)
index d11b9f2..0000000
--- a/src/smpi/colls/allreduce-rab2.cpp
+++ /dev/null
@@ -1,84 +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"
-//#include <star-reduction.c>
-
-// this requires that count >= NP
-int smpi_coll_tuned_allreduce_rab2(void *sbuff, void *rbuff,
-                                   int count, MPI_Datatype dtype,
-                                   MPI_Op op, MPI_Comm comm)
-{
-  MPI_Aint s_extent;
-  int i, rank, nprocs;
-  int nbytes, send_size, s_offset, r_offset;
-  void *recv, *send, *tmp;
-  /*
-     #ifdef MPICH2_REDUCTION
-     MPI_User_function * uop = MPIR_Op_table[op % 16 - 1];
-     #else
-     MPI_User_function *uop;
-     struct MPIR_OP *op_ptr;
-     op_ptr = MPIR_ToPointer(op);
-     uop  = op_ptr->op;
-     #endif
-   */
-  rank = comm->rank();
-  nprocs = comm->size();
-
-
-  s_extent = dtype->get_extent();
-
-  // uneven count
-  if (count % nprocs) {
-    if (count < nprocs)
-      send_size = nprocs;
-    else
-      send_size = (count + nprocs) / nprocs;
-    nbytes = send_size * s_extent;
-
-    send = (void *) smpi_get_tmp_sendbuffer(s_extent * send_size * nprocs);
-    recv = (void *) smpi_get_tmp_recvbuffer(s_extent * send_size * nprocs);
-    tmp = (void *) smpi_get_tmp_sendbuffer(nbytes);
-
-    memcpy(send, sbuff, s_extent * count);
-
-    mpi_coll_alltoall_fun(send, send_size, dtype, recv, send_size, dtype, comm);
-
-    memcpy(tmp, recv, nbytes);
-
-    for (i = 1, s_offset = nbytes; i < nprocs; i++, s_offset = i * nbytes)
-      if(op!=MPI_OP_NULL) op->apply( (char *) recv + s_offset, tmp, &send_size, dtype);
-
-    mpi_coll_allgather_fun(tmp, send_size, dtype, recv, send_size, dtype, comm);
-    memcpy(rbuff, recv, count * s_extent);
-
-    smpi_free_tmp_buffer(recv);
-    smpi_free_tmp_buffer(tmp);
-    smpi_free_tmp_buffer(send);
-  } else {
-    send = sbuff;
-    send_size = count / nprocs;
-    nbytes = send_size * s_extent;
-    r_offset = rank * nbytes;
-
-    recv = (void *) smpi_get_tmp_recvbuffer(s_extent * send_size * nprocs);
-
-    mpi_coll_alltoall_fun(send, send_size, dtype, recv, send_size, dtype, comm);
-
-    memcpy((char *) rbuff + r_offset, recv, nbytes);
-
-    for (i = 1, s_offset = nbytes; i < nprocs; i++, s_offset = i * nbytes)
-      if(op!=MPI_OP_NULL) op->apply( (char *) recv + s_offset, (char *) rbuff + r_offset,
-                     &send_size, dtype);
-
-    mpi_coll_allgather_fun((char *) rbuff + r_offset, send_size, dtype, rbuff, send_size,
-                  dtype, comm);
-    smpi_free_tmp_buffer(recv);
-  }
-
-  return MPI_SUCCESS;
-}