lac/parpack_solver: add missing compress() operation

diff --git a/include/deal.II/lac/parpack_solver.h b/include/deal.II/lac/parpack_solver.h
index fc617c939e415d0bd4aa55fe3e1f4bc75e4c3395..b9e264990214b1c408d657d365ab506c548079b0 100644 (file)
--- a/include/deal.II/lac/parpack_solver.h
+++ b/include/deal.II/lac/parpack_solver.h
@@ -1148,6 +1148,7 @@ PArpackSolver<VectorType>::solve(const MatrixType1 &system_matrix,
   {
     tmp = 0.0;
     tmp.add(nloc, local_indices.data(), resid.data());
+    tmp.compress(VectorOperation::add);
     solver_control.check(iparam[2], tmp.l2_norm());
   }
 }