Fix up a change from a previous patch: use only a single thread in this test.

diff --git a/tests/mpi/mesh_worker_03.cc b/tests/mpi/mesh_worker_03.cc
index ed417410069f90c4eebb2a0d0fa41f6ed912473c..e094f47b15a320505ed00b4a86b6f2aad16302de 100644 (file)
--- a/tests/mpi/mesh_worker_03.cc
+++ b/tests/mpi/mesh_worker_03.cc
@@ -197,7 +197,7 @@ test()
 
 int main (int argc, char **argv)
 {
-  Utilities::MPI::MPI_InitFinalize mpi_initialization (argc, argv, numbers::invalid_unsigned_int);
+  Utilities::MPI::MPI_InitFinalize mpi_initialization (argc, argv, 1);
   MPILogInitAll log;
 
   test<2>();