1 /*
2 * This file is part of the GROMACS molecular simulation package.
3 *
4 * Copyright (c) 2016,2019, by the GROMACS development team, led by
5 * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
6 * and including many others, as listed in the AUTHORS file in the
7 * top-level source directory and at http://www.gromacs.org.
8 *
9 * GROMACS is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public License
11 * as published by the Free Software Foundation; either version 2.1
12 * of the License, or (at your option) any later version.
13 *
14 * GROMACS is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with GROMACS; if not, see
21 * http://www.gnu.org/licenses, or write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 *
24 * If you want to redistribute modifications to GROMACS, please
25 * consider that scientific software is very special. Version
26 * control is crucial - bugs must be traceable. We will be happy to
27 * consider code for inclusion in the official distribution, but
28 * derived work must not be called official GROMACS. Details are found
29 * in the README & COPYING files - if they are missing, get the
30 * official version at http://www.gromacs.org.
31 *
32 * To help us fund GROMACS development, we humbly ask that you cite
33 * the research papers on the package. Check out http://www.gromacs.org.
34 */
35 /*! \internal \file
36 * \brief
37 * Tests for infrastructure for running tests under MPI.
38 *
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_testutils
41 */
42 #include "gmxpre.h"
43
44 #include "testutils/mpitest.h"
45
46 #include "config.h"
47
48 #include <gtest/gtest.h>
49
50 #include "gromacs/utility/basenetwork.h"
51 #include "gromacs/utility/gmxmpi.h"
52
53 namespace
54 {
55
56 class MpiSelfTest : public ::testing::Test
57 {
58 public:
MpiSelfTest()59 MpiSelfTest() : reached{ 0, 0 } {}
60
61 int reached[2];
62 };
63
TEST_F(MpiSelfTest,Runs)64 TEST_F(MpiSelfTest, Runs)
65 {
66 GMX_MPI_TEST(2);
67 #if GMX_THREAD_MPI
68 reached[gmx_node_rank()] = 1;
69 MPI_Barrier(MPI_COMM_WORLD);
70 #else
71 int value = 1;
72 MPI_Gather(&value, 1, MPI_INT, reached, 1, MPI_INT, 0, MPI_COMM_WORLD);
73 #endif
74 if (gmx_node_rank() == 0)
75 {
76 EXPECT_EQ(1, reached[0]);
77 EXPECT_EQ(1, reached[1]);
78 }
79 }
80
81 } // namespace
82