--- /dev/null
+/*
+ * This file is part of the GROMACS molecular simulation package.
+ *
+ * Copyright (c) 2020, by the GROMACS development team, led by
+ * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
+ * and including many others, as listed in the AUTHORS file in the
+ * top-level source directory and at http://www.gromacs.org.
+ *
+ * GROMACS is free software; you can 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.
+ *
+ * GROMACS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with GROMACS; if not, see
+ * http://www.gnu.org/licenses, or write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * If you want to redistribute modifications to GROMACS, please
+ * consider that scientific software is very special. Version
+ * control is crucial - bugs must be traceable. We will be happy to
+ * consider code for inclusion in the official distribution, but
+ * derived work must not be called official GROMACS. Details are found
+ * in the README & COPYING files - if they are missing, get the
+ * official version at http://www.gromacs.org.
+ *
+ * To help us fund GROMACS development, we humbly ask that you cite
+ * the research papers on the package. Check out http://www.gromacs.org.
+ */
+/*! \internal \file
+ * \brief
+ * Check if GPUs are available when they should be.
+ *
+ * This is to test that CI can detect and use GPUs, when they are available.
+ * Driver and CUDA mismatch can lead to the tests falling back to the CPU
+ * code path quietly, leaving the GPU path untested. This is designed to
+ * fail when GPUs should be available, indicated by setting the environment
+ * variable \c GMX_TEST_REQUIRED_NUMBER_OF_DEVICES to 1 or greater.
+ *
+ * \author Artem Zhmurov <zhmurov@gmail.com>
+ * \author Andrey Alekseenko <al42and@gmail.com>
+ */
+#include "gmxpre.h"
+
+#include "config.h"
+
+#include <string>
+
+#include <gtest/gtest.h>
+
+#include "gromacs/hardware/device_management.h"
+#include "gromacs/utility/baseversion.h"
+
+#include "testutils/test_hardware_environment.h"
+
+namespace gmx
+{
+
+namespace test
+{
+
+static unsigned long int getRequiredNumberOfDevices()
+{
+ const char* required_num_of_devices_str = getenv("GMX_TEST_REQUIRED_NUMBER_OF_DEVICES");
+ if (required_num_of_devices_str == nullptr)
+ {
+ return 0;
+ }
+ else
+ {
+ errno = 0;
+ char* strtol_end;
+ const long int required_num_of_devices =
+ std::strtol(required_num_of_devices_str, &strtol_end, 10);
+ GMX_RELEASE_ASSERT(errno == 0, "Invalid value of GMX_TEST_REQUIRED_NUMBER_OF_DEVICES.");
+ GMX_RELEASE_ASSERT(*strtol_end == '\0',
+ "Trailing characters in GMX_TEST_REQUIRED_NUMBER_OF_DEVICES.");
+ GMX_RELEASE_ASSERT(required_num_of_devices >= 0,
+ "GMX_TEST_REQUIRED_NUMBER_OF_DEVICES can not be negative.");
+ return required_num_of_devices;
+ }
+}
+
+TEST(DevicesAvailable, ShouldBeAbleToRunOnDevice)
+{
+ const unsigned long int required_num_of_devices = getRequiredNumberOfDevices();
+
+ if (required_num_of_devices != 0)
+ {
+ ASSERT_TRUE(GMX_GPU) << "GROMACS was compiled without GPU support, yet "
+ "GMX_TEST_REQUIRED_NUMBER_OF_DEVICES is set.";
+
+ std::string platformString(getGpuImplementationString());
+
+ std::string errorMessage = "Can't perform device detection in " + platformString + ":\n";
+ std::string detectionErrorMessage;
+
+ // Test if the detection is working
+ ASSERT_TRUE(isDeviceDetectionEnabled())
+ << errorMessage << "GPU device detection is disabled by "
+ << "GMX_DISABLE_GPU_DETECTION environment variable.";
+ ASSERT_TRUE(isDeviceDetectionFunctional(&detectionErrorMessage))
+ << errorMessage
+ << "GPU device checks failed with the following message: " << detectionErrorMessage;
+
+ // This is to test that the GPU detection test environment is working
+ const std::vector<std::unique_ptr<TestDevice>>& testDeviceList =
+ getTestHardwareEnvironment()->getTestDeviceList();
+ ASSERT_FALSE(testDeviceList.empty())
+ << errorMessage << "The test environment has an empty list of capable devices.";
+ ASSERT_GE(testDeviceList.size(), required_num_of_devices)
+ << errorMessage << "Requested " << required_num_of_devices << " device(s), "
+ << "but only " << testDeviceList.size() << " detected in the test environment.";
+ }
+}
+
+} // namespace test
+} // namespace gmx
biod.pnpi.spb.ru / alexxy / gromacs.git / commitdiff