Create vector before assigning

diff --git a/source/lac/petsc_parallel_vector.cc b/source/lac/petsc_parallel_vector.cc
index da90e9ab772397b75f5529fbc636b7ae327af69d..69fcd3659386c2b70fe14c54fbba2abfaad26460 100644 (file)
--- a/source/lac/petsc_parallel_vector.cc
+++ b/source/lac/petsc_parallel_vector.cc
@@ -87,7 +87,13 @@ namespace PETScWrappers
 
     Vector::Vector(const Vector &v)
       : VectorBase()
+      , communicator(v.communicator)
     {
+      if (v.has_ghost_elements())
+        Vector::create_vector(v.size(), v.local_size(), v.ghost_indices);
+      else
+        Vector::create_vector(v.size(), v.local_size());
+
       this->operator=(v);
     }