From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Tue, 11 May 2021 22:35:54 +0000 (-0600)
Subject: Add a test.
X-Git-Tag: v9.3.0-rc1~23^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F12185%2Fhead;p=dealii.git

Add a test.
---

diff --git a/tests/base/aligned_vector_replicate_lifetime.cc b/tests/base/aligned_vector_replicate_lifetime.cc
new file mode 100644
index 0000000000..66da4c7304
--- /dev/null
+++ b/tests/base/aligned_vector_replicate_lifetime.cc
@@ -0,0 +1,109 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2021 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, redistribute
+// it, and/or modify it under the terms of the GNU Lesser General
+// Public License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE.md at
+// the top level directory of deal.II.
+//
+// ---------------------------------------------------------------------
+
+
+// Test AlignedVector::replicate_across_communicator().
+//
+// Check that all objects are correctly created/destroyed again.
+
+#include <deal.II/base/aligned_vector.h>
+#include <deal.II/base/logstream.h>
+
+#include "../tests.h"
+
+
+int object_number     = 0;
+int objects_destroyed = 0;
+
+class C
+{
+public:
+  C()
+  {
+    object_number = ::object_number++;
+    deallog << "Default constructor. Object number " << object_number
+            << std::endl;
+  }
+
+  C(const C &c)
+  {
+    object_number = ::object_number++;
+    deallog << "copy constructor from " << c.object_number << ". Object number "
+            << object_number << std::endl;
+  }
+
+  C(const C &&c)
+  {
+    object_number = ::object_number++;
+    deallog << "move constructor from " << c.object_number << ". Object number "
+            << object_number << std::endl;
+  }
+
+  ~C()
+  {
+    deallog << "destructor. Object number " << object_number << std::endl;
+    ++objects_destroyed;
+  }
+
+  template <typename Archive>
+  void
+  serialize(Archive &ar, const unsigned int)
+  {
+    ar &object_number;
+  }
+
+
+private:
+  unsigned int object_number;
+};
+
+
+
+void
+test()
+{
+  const MPI_Comm     communicator = MPI_COMM_WORLD;
+  const unsigned int root         = 1;
+  Assert(root < Utilities::MPI::n_mpi_processes(communicator),
+         ExcInternalError());
+
+  deallog << "*** On process " << Utilities::MPI::this_mpi_process(communicator)
+          << ": Starting up..." << std::endl;
+
+  // Create an object of nonzero size and then replicate it.
+  AlignedVector<C> avec(Utilities::MPI::this_mpi_process(communicator));
+
+  deallog << "*** On process " << Utilities::MPI::this_mpi_process(communicator)
+          << ": Replicating..." << std::endl;
+
+  avec.replicate_across_communicator(communicator, root);
+
+  deallog << "*** On process " << Utilities::MPI::this_mpi_process(communicator)
+          << ": Going out of scope" << std::endl;
+}
+
+
+
+int
+main(int argc, char **argv)
+{
+  Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, 1);
+  MPILogInitAll                    all;
+
+  test();
+
+  deallog << "Objects created: " << object_number << std::endl;
+  deallog << "Objects destroyed: " << objects_destroyed << std::endl;
+}
diff --git a/tests/base/aligned_vector_replicate_lifetime.mpirun=3.output b/tests/base/aligned_vector_replicate_lifetime.mpirun=3.output
new file mode 100644
index 0000000000..85bfe7c317
--- /dev/null
+++ b/tests/base/aligned_vector_replicate_lifetime.mpirun=3.output
@@ -0,0 +1,36 @@
+
+DEAL:0::*** On process 0: Starting up...
+DEAL:0::Default constructor. Object number 0
+DEAL:0::destructor. Object number 0
+DEAL:0::*** On process 0: Replicating...
+DEAL:0::*** On process 0: Going out of scope
+DEAL:0::Objects created: 1
+DEAL:0::Objects destroyed: 1
+
+DEAL:1::*** On process 1: Starting up...
+DEAL:1::Default constructor. Object number 0
+DEAL:1::copy constructor from 0. Object number 1
+DEAL:1::destructor. Object number 0
+DEAL:1::*** On process 1: Replicating...
+DEAL:1::copy constructor from 1. Object number 2
+DEAL:1::destructor. Object number 2
+DEAL:1::move constructor from 1. Object number 3
+DEAL:1::destructor. Object number 1
+DEAL:1::*** On process 1: Going out of scope
+DEAL:1::destructor. Object number 3
+DEAL:1::Objects created: 4
+DEAL:1::Objects destroyed: 4
+
+
+DEAL:2::*** On process 2: Starting up...
+DEAL:2::Default constructor. Object number 0
+DEAL:2::copy constructor from 0. Object number 1
+DEAL:2::copy constructor from 0. Object number 2
+DEAL:2::destructor. Object number 0
+DEAL:2::*** On process 2: Replicating...
+DEAL:2::destructor. Object number 2
+DEAL:2::destructor. Object number 1
+DEAL:2::*** On process 2: Going out of scope
+DEAL:2::Objects created: 3
+DEAL:2::Objects destroyed: 3
+