From: Matthias Maier <tamiko@43-1.org>
Date: Thu, 26 Dec 2019 15:24:01 +0000 (-0600)
Subject: use write_vtu_with_pvtu_record, code cleanup
X-Git-Tag: v9.2.0-rc1~443^2~34
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4af1d09533b1290c033ae192a0d3c6f801dfe4de;p=dealii.git

use write_vtu_with_pvtu_record, code cleanup
---

diff --git a/examples/step-69/step-69.cc b/examples/step-69/step-69.cc
index 95a1ec813a..8823c0f2cb 100644
--- a/examples/step-69/step-69.cc
+++ b/examples/step-69/step-69.cc
@@ -1993,16 +1993,9 @@ namespace Step69
   template <int dim>
   void TimeLoop<dim>::run()
   {
-    if (Utilities::MPI::this_mpi_process(mpi_communicator) == 0)
-      {
-        pcout << "Reading parameters and allocating objects... " << std::flush;
-        ParameterAcceptor::initialize("step-69.prm");
-        pcout << "done" << std::endl;
-      }
-    else
-      {
-        ParameterAcceptor::initialize("step-69.prm");
-      }
+    pcout << "Reading parameters and allocating objects... " << std::flush;
+    ParameterAcceptor::initialize("step-69.prm");
+    pcout << "done" << std::endl;
 
     print_head(pcout, "create triangulation");
     discretization.setup();
@@ -2177,28 +2170,7 @@ namespace Step69
                                   DataOutBase::VtkFlags::best_speed);
       data_out.set_flags(flags);
 
-      const auto filename = [&](const unsigned int i) -> std::string {
-        const auto seq = dealii::Utilities::int_to_string(i, 4);
-        return name + "-" + Utilities::int_to_string(cycle, 6) + "-" + seq +
-               ".vtu";
-      };
-
-      const unsigned int i = triangulation.locally_owned_subdomain();
-      std::ofstream      output(filename(i));
-      data_out.write_vtu(output);
-
-      if (dealii::Utilities::MPI::this_mpi_process(mpi_communicator) == 0)
-        {
-          const unsigned int n_mpi_processes =
-            dealii::Utilities::MPI::n_mpi_processes(mpi_communicator);
-          std::vector<std::string> filenames;
-          for (unsigned int i = 0; i < n_mpi_processes; ++i)
-            filenames.push_back(filename(i));
-
-          std::ofstream output(name + "-" + Utilities::int_to_string(cycle, 6) +
-                               ".pvtu");
-          data_out.write_pvtu_record(output, filenames);
-        }
+      data_out.write_vtu_with_pvtu_record("", name, cycle, 6, mpi_communicator);
     };
 
     output_thread = std::move(std::thread(output_worker));