X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/8a9af89e44c0f7f2f648d402e89a26799910ee31..40616078da72e823931c1fb884949054699ec39d:/src/smpi/colls/bcast-NTSL-Isend.cpp

diff --git a/src/smpi/colls/bcast-NTSL-Isend.cpp b/src/smpi/colls/bcast-NTSL-Isend.cpp
deleted file mode 100644
index e259cba30c..0000000000
--- a/src/smpi/colls/bcast-NTSL-Isend.cpp
+++ /dev/null
@@ -1,132 +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"
-
-static int bcast_NTSL_segment_size_in_byte = 8192;
-
-/* Non-topology-specific pipelined linear-bcast function 
-   0->1, 1->2 ,2->3, ....., ->last node : in a pipeline fashion
-*/
-int smpi_coll_tuned_bcast_NTSL_Isend(void *buf, int count, MPI_Datatype datatype,
-                               int root, MPI_Comm comm)
-{
-  int tag = COLL_TAG_BCAST;
-  MPI_Status status;
-  MPI_Request request;
-  MPI_Request *send_request_array;
-  MPI_Request *recv_request_array;
-  MPI_Status *send_status_array;
-  MPI_Status *recv_status_array;
-  int rank, size;
-  int i;
-  MPI_Aint extent;
-  extent = datatype->get_extent();
-
-  rank = comm->rank();
-  size = comm->size();
-
-  /* source node and destination nodes (same through out the functions) */
-  int to = (rank + 1) % size;
-  int from = (rank + size - 1) % size;
-
-  /* segment is segment size in number of elements (not bytes) */
-  int segment = bcast_NTSL_segment_size_in_byte / extent;
-  segment =  segment == 0 ? 1 :segment; 
-  /* pipeline length */
-  int pipe_length = count / segment;
-
-  /* use for buffer offset for sending and receiving data = segment size in byte */
-  int increment = segment * extent;
-
-  /* if the input size is not divisible by segment size => 
-     the small remainder will be done with native implementation */
-  int remainder = count % segment;
-
-  /* if root is not zero send to rank zero first
-     this can be modified to make it faster by using logical src, dst.
-   */
-  if (root != 0) {
-    if (rank == root) {
-      Request::send(buf, count, datatype, 0, tag, comm);
-    } else if (rank == 0) {
-      Request::recv(buf, count, datatype, root, tag, comm, &status);
-    }
-  }
-
-  /* when a message is smaller than a block size => no pipeline */
-  if (count <= segment) {
-    if (rank == 0) {
-      Request::send(buf, count, datatype, to, tag, comm);
-    } else if (rank == (size - 1)) {
-      request = Request::irecv(buf, count, datatype, from, tag, comm);
-      Request::wait(&request, &status);
-    } else {
-      request = Request::irecv(buf, count, datatype, from, tag, comm);
-      Request::wait(&request, &status);
-      Request::send(buf, count, datatype, to, tag, comm);
-    }
-    return MPI_SUCCESS;
-  }
-
-  /* pipeline bcast */
-  else {
-    send_request_array =
-        (MPI_Request *) xbt_malloc((size + pipe_length) * sizeof(MPI_Request));
-    recv_request_array =
-        (MPI_Request *) xbt_malloc((size + pipe_length) * sizeof(MPI_Request));
-    send_status_array =
-        (MPI_Status *) xbt_malloc((size + pipe_length) * sizeof(MPI_Status));
-    recv_status_array =
-        (MPI_Status *) xbt_malloc((size + pipe_length) * sizeof(MPI_Status));
-
-    /* root send data */
-    if (rank == 0) {
-      for (i = 0; i < pipe_length; i++) {
-        send_request_array[i] = Request::isend((char *) buf + (i * increment), segment, datatype, to,
-                  (tag + i), comm);
-      }
-      Request::waitall((pipe_length), send_request_array, send_status_array);
-    }
-
-    /* last node only receive data */
-    else if (rank == (size - 1)) {
-      for (i = 0; i < pipe_length; i++) {
-        recv_request_array[i] = Request::irecv((char *) buf + (i * increment), segment, datatype, from,
-                  (tag + i), comm);
-      }
-      Request::waitall((pipe_length), recv_request_array, recv_status_array);
-    }
-
-    /* intermediate nodes relay (receive, then send) data */
-    else {
-      for (i = 0; i < pipe_length; i++) {
-        recv_request_array[i] = Request::irecv((char *) buf + (i * increment), segment, datatype, from,
-                  (tag + i), comm);
-      }
-      for (i = 0; i < pipe_length; i++) {
-        Request::wait(&recv_request_array[i], &status);
-        send_request_array[i] = Request::isend((char *) buf + (i * increment), segment, datatype, to,
-                  (tag + i), comm);
-      }
-      Request::waitall((pipe_length), send_request_array, send_status_array);
-    }
-
-    free(send_request_array);
-    free(recv_request_array);
-    free(send_status_array);
-    free(recv_status_array);
-  }                             /* end pipeline */
-
-  /* when count is not divisible by block size, use default BCAST for the remainder */
-  if ((remainder != 0) && (count > segment)) {
-    XBT_WARN("MPI_bcast_NTSL_Isend_nb use default MPI_bcast.");	  	  
-    smpi_mpi_bcast((char *) buf + (pipe_length * increment), remainder, datatype,
-              root, comm);
-  }
-
-  return MPI_SUCCESS;
-}