From: Peter Munch <peterrmuench@gmail.com>
Date: Sun, 27 Feb 2022 20:31:46 +0000 (+0100)
Subject: Fix GC tests
X-Git-Tag: v9.4.0-rc1~435^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f9fbeb88e670957d730d1aca06d40ed8967e4925;p=dealii.git

Fix GC tests
---

diff --git a/tests/multigrid-global-coarsening/multigrid_util.h b/tests/multigrid-global-coarsening/multigrid_util.h
index db03f9c77c..8cb740acf5 100644
--- a/tests/multigrid-global-coarsening/multigrid_util.h
+++ b/tests/multigrid-global-coarsening/multigrid_util.h
@@ -134,6 +134,7 @@ public:
   compute_inverse_diagonal(VectorType &diagonal) const
   {
     // compute diagonal
+    matrix_free.initialize_dof_vector(diagonal);
     MatrixFreeTools::compute_diagonal(matrix_free,
                                       diagonal,
                                       &Operator::do_cell_integral_local,