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[simgrid.git] / src / smpi / colls / alltoall / alltoall-3dmesh.cpp

diff --git a/src/smpi/colls/alltoall/alltoall-3dmesh.cpp b/src/smpi/colls/alltoall/alltoall-3dmesh.cpp
index 8541551..4bf3d39 100644 (file)
--- a/src/smpi/colls/alltoall/alltoall-3dmesh.cpp
+++ b/src/smpi/colls/alltoall/alltoall-3dmesh.cpp
@@ -1,11 +1,11 @@
-/* Copyright (c) 2013-2014. The SimGrid Team.
+/* Copyright (c) 2013-2019. 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 <math.h>
+#include "../colls_private.hpp"
+#include <cmath>
 
 /*****************************************************************************
 
@@ -27,7 +27,7 @@
            y dimension, then in z dimension. Each node then extracts the
            needed data. The communication in all dimension is simple.
 
- * Auther: Ahmad Faraj
+ * Author: Ahmad Faraj
 ****************************************************************************/
 
 static int alltoall_check_is_3dmesh(int num, int *i, int *j, int *k)
@@ -45,26 +45,24 @@ static int alltoall_check_is_3dmesh(int num, int *i, int *j, int *k)
   }
   return 0;
 }
-
-int Coll_alltoall_3dmesh::alltoall(void *send_buff, int send_count,
+namespace simgrid{
+namespace smpi{
+int Coll_alltoall_3dmesh::alltoall(const void *send_buff, int send_count,
                                     MPI_Datatype send_type,
                                     void *recv_buff, int recv_count,
                                     MPI_Datatype recv_type, MPI_Comm comm)
 {
-  MPI_Request *reqs, *req_ptr;
   MPI_Aint extent;
-  MPI_Status status, *statuses;
+  MPI_Status status;
   int i, j, src, dst, rank, num_procs, num_reqs, X, Y, Z, block_size, count;
   int my_z, two_dsize, my_row_base, my_col_base, my_z_base, src_row_base;
   int src_z_base, send_offset, recv_offset, tag = COLL_TAG_ALLTOALL;
 
-  char *tmp_buff1, *tmp_buff2;
-
   rank = comm->rank();
   num_procs = comm->size();
   extent = send_type->get_extent();
 
-  if (!alltoall_check_is_3dmesh(num_procs, &X, &Y, &Z))
+  if (not alltoall_check_is_3dmesh(num_procs, &X, &Y, &Z))
     return MPI_ERR_OTHER;
 
   num_reqs = X;
@@ -82,13 +80,12 @@ int Coll_alltoall_3dmesh::alltoall(void *send_buff, int send_count,
 
   block_size = extent * send_count;
 
-  tmp_buff1 = (char *) smpi_get_tmp_sendbuffer(block_size * num_procs * two_dsize);
-  tmp_buff2 = (char *) smpi_get_tmp_recvbuffer(block_size * two_dsize);
-
-  statuses = (MPI_Status *) xbt_malloc(num_reqs * sizeof(MPI_Status));
-  reqs = (MPI_Request *) xbt_malloc(num_reqs * sizeof(MPI_Request));
+  unsigned char* tmp_buff1 = smpi_get_tmp_sendbuffer(block_size * num_procs * two_dsize);
+  unsigned char* tmp_buff2 = smpi_get_tmp_recvbuffer(block_size * two_dsize);
 
-  req_ptr = reqs;
+  MPI_Status* statuses = new MPI_Status[num_reqs];
+  MPI_Request* reqs    = new MPI_Request[num_reqs];
+  MPI_Request* req_ptr = reqs;
 
   recv_offset = (rank % two_dsize) * block_size * num_procs;
 
@@ -178,9 +175,11 @@ int Coll_alltoall_3dmesh::alltoall(void *send_buff, int send_count,
 
   Request::waitall(Z - 1, reqs, statuses);
 
-  free(reqs);
-  free(statuses);
+  delete[] reqs;
+  delete[] statuses;
   smpi_free_tmp_buffer(tmp_buff1);
   smpi_free_tmp_buffer(tmp_buff2);
   return MPI_SUCCESS;
 }
+}
+}