Move collective algorithms to separate folders

[simgrid.git] / src / smpi / colls / reduce-binomial.cpp

diff --git a/src/smpi/colls/reduce-binomial.cpp b/src/smpi/colls/reduce-binomial.cpp
deleted file mode 100644 (file)
index ebf0c1e..0000000
--- a/src/smpi/colls/reduce-binomial.cpp
+++ /dev/null
@@ -1,93 +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>
-
-int smpi_coll_tuned_reduce_binomial(void *sendbuf, void *recvbuf, int count,
-                                    MPI_Datatype datatype, MPI_Op op, int root,
-                                    MPI_Comm comm)
-{
-  MPI_Status status;
-  int comm_size, rank;
-  int mask, relrank, source;
-  int dst;
-  int tag = COLL_TAG_REDUCE;
-  MPI_Aint extent;
-  void *tmp_buf;
-  MPI_Aint true_lb, true_extent;
-  if (count == 0)
-    return 0;
-  rank = comm->rank();
-  comm_size = comm->size();
-
-  extent = datatype->get_extent();
-
-  tmp_buf = (void *) smpi_get_tmp_sendbuffer(count * extent);
-  int is_commutative =  (op==MPI_OP_NULL || op->is_commutative());
-  mask = 1;
-  
-  int lroot;
-  if (is_commutative) 
-        lroot   = root;
-  else
-        lroot   = 0;
-  relrank = (rank - lroot + comm_size) % comm_size;
-
-  datatype->extent(&true_lb, &true_extent);
-
-  /* adjust for potential negative lower bound in datatype */
-  tmp_buf = (void *)((char*)tmp_buf - true_lb);
-    
-  /* If I'm not the root, then my recvbuf may not be valid, therefore
-     I have to allocate a temporary one */
-  if (rank != root) {
-      recvbuf = (void *) smpi_get_tmp_recvbuffer(count*(MAX(extent,true_extent)));
-      recvbuf = (void *)((char*)recvbuf - true_lb);
-  }
-   if ((rank != root) || (sendbuf != MPI_IN_PLACE)) {
-      Datatype::copy(sendbuf, count, datatype, recvbuf,count, datatype);
-  }
-
-  while (mask < comm_size) {
-    /* Receive */
-    if ((mask & relrank) == 0) {
-      source = (relrank | mask);
-      if (source < comm_size) {
-        source = (source + lroot) % comm_size;
-        Request::recv(tmp_buf, count, datatype, source, tag, comm, &status);
-        
-        if (is_commutative) {
-          if(op!=MPI_OP_NULL) op->apply( tmp_buf, recvbuf, &count, datatype);
-        } else {
-          if(op!=MPI_OP_NULL) op->apply( recvbuf, tmp_buf, &count, datatype);
-          Datatype::copy(tmp_buf, count, datatype,recvbuf, count, datatype);
-        }
-      }
-    } else {
-      dst = ((relrank & (~mask)) + lroot) % comm_size;
-      Request::send(recvbuf, count, datatype, dst, tag, comm);
-      break;
-    }
-    mask <<= 1;
-  }
-
-  if (!is_commutative && (root != 0)){
-    if (rank == 0){
-      Request::send(recvbuf, count, datatype, root,tag, comm);
-    }else if (rank == root){
-      Request::recv(recvbuf, count, datatype, 0, tag, comm, &status);
-    }
-  }
-
-  if (rank != root) {
-         smpi_free_tmp_buffer(recvbuf);
-  }
-  smpi_free_tmp_buffer(tmp_buf);
-
-  return 0;
-}