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37 * Implements test environment class which performs hardware enumeration for unit tests.
39 * \author Aleksei Iupinov <a.yupinov@gmail.com>
40 * \ingroup module_ewald
45 #include "testhardwarecontexts.h"
47 #include "gromacs/compat/make_unique.h"
48 #include "gromacs/ewald/pme.h"
49 #include "gromacs/gpu_utils/gpu_utils.h"
50 #include "gromacs/hardware/hw_info.h"
51 #include "gromacs/utility/basenetwork.h"
52 #include "gromacs/utility/exceptions.h"
53 #include "gromacs/utility/loggerbuilder.h"
54 #include "gromacs/utility/physicalnodecommunicator.h"
61 TestHardwareContext::~TestHardwareContext() = default;
63 const char *codePathToString(CodePath codePath)
72 GMX_THROW(NotImplementedError("This CodePath should support codePathToString"));
76 /* Implements the "construct on first use" idiom to avoid any static
77 * initialization order fiasco.
79 * Note that thread-safety of the initialization is guaranteed by the
80 * C++11 language standard.
82 * The pointer itself (not the memory it points to) has no destructor,
83 * so there is no deinitialization issue. See
84 * https://isocpp.org/wiki/faq/ctors for discussion of alternatives
86 const PmeTestEnvironment *getPmeTestEnv()
88 static PmeTestEnvironment *pmeTestEnvironment = nullptr;
89 if (pmeTestEnvironment == nullptr)
91 // Ownership of the TestEnvironment is taken by GoogleTest, so nothing can leak
92 pmeTestEnvironment = static_cast<PmeTestEnvironment *>(::testing::AddGlobalTestEnvironment(new PmeTestEnvironment));
94 return pmeTestEnvironment;
97 void callAddGlobalTestEnvironment()
102 //! Simple hardware initialization
103 static gmx_hw_info_t *hardwareInit()
105 PhysicalNodeCommunicator physicalNodeComm(MPI_COMM_WORLD, gmx_physicalnode_id_hash());
106 return gmx_detect_hardware(MDLogger {}, physicalNodeComm);
109 void PmeTestEnvironment::SetUp()
111 hardwareContexts_.emplace_back(compat::make_unique<TestHardwareContext>(CodePath::CPU, "", nullptr));
113 hardwareInfo_ = hardwareInit();
114 if (!pme_gpu_supports_build(nullptr))
116 // PME can only run on the CPU, so don't make any more test contexts.
119 const MDLogger dummyLogger;
120 // Constructing contexts for all compatible GPUs - will be empty on non-GPU builds
121 for (int gpuIndex : getCompatibleGpus(hardwareInfo_->gpu_info))
123 gmx_device_info_t *deviceInfo = getDeviceInfo(hardwareInfo_->gpu_info, gpuIndex);
124 init_gpu(dummyLogger, deviceInfo);
127 get_gpu_device_info_string(stmp, hardwareInfo_->gpu_info, gpuIndex);
128 std::string description = "(GPU " + std::string(stmp) + ") ";
129 // TODO should this be CodePath::GPU?
130 hardwareContexts_.emplace_back(compat::make_unique<TestHardwareContext>
131 (CodePath::CUDA, description.c_str(),
136 void PmeTestEnvironment::TearDown()
138 gmx_hardware_info_free();