FlexibleIndexStorage: fix memory allocation

diff --git a/source/base/mpi_compute_index_owner_internal.cc b/source/base/mpi_compute_index_owner_internal.cc
index ef3fd7300d1b031dc4f34d8f6e857268207589f0..e31a8760ccad8111eb4f3f31c0fdd99ad3d15345 100644 (file)
--- a/source/base/mpi_compute_index_owner_internal.cc
+++ b/source/base/mpi_compute_index_owner_internal.cc
@@ -55,7 +55,7 @@ namespace Utilities
 
           // in case we have contiguous indices, only fill the vector upon
           // first request in `fill`
-          if (!index_range_contiguous)
+          if (use_vector && !index_range_contiguous)
             data.resize(size, invalid_index_value);
         }