PETScWrappers::MatrixFree remove improper usage of MPI_COMM_WORLD

diff --git a/source/lac/petsc_matrix_free.cc b/source/lac/petsc_matrix_free.cc
index bb4f86528aa690aeaae1794731e37dcd5ab5f9c9..751d64d4647b2132c7a69b5ac270f7b3ae05399b 100644 (file)
--- a/source/lac/petsc_matrix_free.cc
+++ b/source/lac/petsc_matrix_free.cc
@@ -149,7 +149,7 @@ namespace PETScWrappers
                      const unsigned int local_rows,
                      const unsigned int local_columns)
   {
-    reinit(MPI_COMM_WORLD, m, n, local_rows, local_columns);
+    reinit(this->communicator, m, n, local_rows, local_columns);
   }
 
 
@@ -161,7 +161,7 @@ namespace PETScWrappers
                      const std::vector<unsigned int> &local_columns_per_process,
                      const unsigned int               this_process)
   {
-    reinit(MPI_COMM_WORLD,
+    reinit(this->communicator,
            m,
            n,
            local_rows_per_process,