step-32: construct solver correctly

git-svn-id: https://svn.dealii.org/branches/branch_unify_linear_algebra@29832 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/examples/step-32/step-32.cc b/deal.II/examples/step-32/step-32.cc
index c8411483f4e6ec8c72779a05295e9b26501d5375..c7147c378ad558e727b56cfc9b304bea78a0a606 100644 (file)
--- a/deal.II/examples/step-32/step-32.cc
+++ b/deal.II/examples/step-32/step-32.cc
@@ -278,7 +278,7 @@ namespace Step32
           {
             SolverControl solver_control(5000, utmp.l2_norm()*1e-2);
 #ifdef USE_PETSC_LA
-            PETScWrappers::SolverCG solver(solver_control);
+            PETScWrappers::SolverCG solver(solver_control, MPI_COMM_WORLD);
 #else
             TrilinosWrappers::SolverCG solver(solver_control);
 #endif