X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/b7ed19dfcc221d7b3eca182abb5c4a3946671172..2d37e348a09783cda723c7019640ee69de168324:/src/smpi/colls/reduce/reduce-mvapich-knomial.cpp

diff --git a/src/smpi/colls/reduce/reduce-mvapich-knomial.cpp b/src/smpi/colls/reduce/reduce-mvapich-knomial.cpp
index cbcc1e4b1d..1700f75baa 100644
--- a/src/smpi/colls/reduce/reduce-mvapich-knomial.cpp
+++ b/src/smpi/colls/reduce/reduce-mvapich-knomial.cpp
@@ -1,4 +1,4 @@
-/* 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
@@ -37,23 +37,25 @@
  * copyright file COPYRIGHT in the top level MVAPICH2 directory.
  *
  */
- 
-#include "../colls_private.h"
+
+#include "../colls_private.hpp"
+#include <algorithm>
+
 extern int mv2_reduce_intra_knomial_factor;
 extern int mv2_reduce_inter_knomial_factor;
 
 #define SMPI_DEFAULT_KNOMIAL_FACTOR 4
 
 //        int mv2_reduce_knomial_factor = 2;
-        
-        
-        
-static int MPIR_Reduce_knomial_trace(int root, int reduce_knomial_factor,  
+
+
+
+static int MPIR_Reduce_knomial_trace(int root, int reduce_knomial_factor,
         MPI_Comm comm, int *dst, int *expected_send_count,
         int *expected_recv_count, int **src_array)
 {
     int mask=0x1, k, comm_size, src, rank, relative_rank, lroot=0;
-    int orig_mask=0x1; 
+    int orig_mask=0x1;
     int recv_iter=0, send_iter=0;
     int *knomial_reduce_src_array=NULL;
     comm_size =  comm->size();
@@ -62,7 +64,7 @@ static int MPIR_Reduce_knomial_trace(int root, int reduce_knomial_factor,
     lroot = root;
     relative_rank = (rank - lroot + comm_size) % comm_size;
 
-    /* First compute to whom we need to send data */ 
+    /* First compute to whom we need to send data */
     while (mask < comm_size) {
         if (relative_rank % (reduce_knomial_factor*mask)) {
             *dst = relative_rank/(reduce_knomial_factor*mask)*
@@ -77,8 +79,8 @@ static int MPIR_Reduce_knomial_trace(int root, int reduce_knomial_factor,
     }
     mask /= reduce_knomial_factor;
 
-    /* Now compute how many children we have in the knomial-tree */ 
-    orig_mask = mask; 
+    /* Now compute how many children we have in the knomial-tree */
+    orig_mask = mask;
     while (mask > 0) {
         for(k=1;k<reduce_knomial_factor;k++) {
             if (relative_rank + mask*k < comm_size) {
@@ -88,13 +90,13 @@ static int MPIR_Reduce_knomial_trace(int root, int reduce_knomial_factor,
         mask /= reduce_knomial_factor;
     }
 
-    /* Finally, fill up the src array */ 
-    if(recv_iter > 0) { 
+    /* Finally, fill up the src array */
+    if(recv_iter > 0) {
         knomial_reduce_src_array = static_cast<int*>(smpi_get_tmp_sendbuffer(sizeof(int)*recv_iter));
-    } 
+    }
 
-    mask = orig_mask; 
-    recv_iter=0; 
+    mask = orig_mask;
+    recv_iter=0;
     while (mask > 0) {
         for(k=1;k<reduce_knomial_factor;k++) {
             if (relative_rank + mask*k < comm_size) {
@@ -110,10 +112,12 @@ static int MPIR_Reduce_knomial_trace(int root, int reduce_knomial_factor,
 
     *expected_recv_count = recv_iter;
     *expected_send_count = send_iter;
-    *src_array = knomial_reduce_src_array; 
-    return 0; 
+    *src_array = knomial_reduce_src_array;
+    return 0;
 }
-        
+
+namespace simgrid{
+namespace smpi{
 int Coll_reduce_mvapich2_knomial::reduce (
         void *sendbuf,
         void *recvbuf,
@@ -129,7 +133,7 @@ int Coll_reduce_mvapich2_knomial::reduce (
     MPI_Request send_request;
     int index=0;
     MPI_Aint true_lb, true_extent, extent;
-    MPI_Status status; 
+    MPI_Status status;
     int recv_iter=0, dst=-1, expected_send_count, expected_recv_count;
     int *src_array=NULL;
     void **tmp_buf=NULL;
@@ -148,7 +152,7 @@ int Coll_reduce_mvapich2_knomial::reduce (
     is_commutative =  (op==MPI_OP_NULL || op->is_commutative());
 
     if (rank != root) {
-        recvbuf=(void *)smpi_get_tmp_recvbuffer(count*(MAX(extent,true_extent)));
+        recvbuf = (void*)smpi_get_tmp_recvbuffer(count * std::max(extent, true_extent));
         recvbuf = (void *)((char*)recvbuf - true_lb);
     }
 
@@ -168,14 +172,14 @@ int Coll_reduce_mvapich2_knomial::reduce (
       }
 
 
-    MPIR_Reduce_knomial_trace(root, mv2_reduce_intra_knomial_factor, comm, 
+    MPIR_Reduce_knomial_trace(root, mv2_reduce_intra_knomial_factor, comm,
            &dst, &expected_send_count, &expected_recv_count, &src_array);
 
     if(expected_recv_count > 0 ) {
         tmp_buf  = static_cast<void**>(xbt_malloc(sizeof(void *)*expected_recv_count));
         requests = static_cast<MPI_Request*>(xbt_malloc(sizeof(MPI_Request)*expected_recv_count));
         for(k=0; k < expected_recv_count; k++ ) {
-            tmp_buf[k] = smpi_get_tmp_sendbuffer(count*(MAX(extent,true_extent)));
+            tmp_buf[k] = smpi_get_tmp_sendbuffer(count * std::max(extent, true_extent));
             tmp_buf[k] = (void *)((char*)tmp_buf[k] - true_lb);
         }
 
@@ -206,9 +210,9 @@ int Coll_reduce_mvapich2_knomial::reduce (
         xbt_free(requests);
     }
 
-    if(src_array != NULL) { 
+    if(src_array != NULL) {
         xbt_free(src_array);
-    } 
+    }
 
     if(rank != root) {
         send_request=Request::isend(recvbuf,count, datatype, dst,
@@ -223,3 +227,5 @@ int Coll_reduce_mvapich2_knomial::reduce (
 
     return mpi_errno;
 }
+}
+}