From ca3bcb2662251d813e2ed42420d9298a21d5cff8 Mon Sep 17 00:00:00 2001
From: Markus Blatt <markus@dr-blatt.de>
Date: Tue, 19 May 2015 19:58:05 +0200
Subject: [PATCH] Use more accurate name for the size of the global components.

The new name is num_global_components, which actually is an upper bound
for the the number of global components (1 plus the maximum global index).
---
 opm/core/linalg/ParallelIstlInformation.hpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/opm/core/linalg/ParallelIstlInformation.hpp b/opm/core/linalg/ParallelIstlInformation.hpp
index 9f2c2200c..24e9084d7 100644
--- a/opm/core/linalg/ParallelIstlInformation.hpp
+++ b/opm/core/linalg/ParallelIstlInformation.hpp
@@ -115,19 +115,20 @@ public:
     void copyValuesTo(ParallelIndexSet& indexSet, RemoteIndices& remoteIndices,
                       std::size_t local_component_size = 0, std::size_t num_components = 1) const
     {
-        ParallelIndexSet::GlobalIndex max_gi  = local_component_size;
+        ParallelIndexSet::GlobalIndex global_component_size  = local_component_size;
         if ( num_components > 1 )
         {
+            ParallelIndexSet::GlobalIndex max_gi = 0;
             // component the max global index
             for( auto i = indexSet_->begin(), end = indexSet_->end(); i != end; ++i )
             {
                 max_gi = std::max(max_gi, i->global());
             }
-            ++max_gi;
-            max_gi = communicator_.max(max_gi);
+            global_component_size = max_gi+1;
+            global_component_size = communicator_.max(global_component_size);
         }
         indexSet.beginResize();
-        IndexSetInserter<ParallelIndexSet> inserter(indexSet, max_gi,
+        IndexSetInserter<ParallelIndexSet> inserter(indexSet, global_component_size,
                                                     local_component_size, num_components);
         std::for_each(indexSet_->begin(), indexSet_->end(), inserter);
         indexSet.endResize();