From: Stefano Zampini <stefano.zampini@gmail.com>
Date: Thu, 10 Nov 2022 16:53:40 +0000 (+0100)
Subject: PETScWrappers::MatrixFree remove improper usage of MPI_COMM_WORLD
X-Git-Tag: v9.5.0-rc1~717^2~3
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=228fb89536ada614522391d8f5bd9a4ff3ab5ef5;p=dealii.git

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 bb4f86528a..751d64d464 100644
--- 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,