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35 #ifndef GMX_EWALD_TEST_HARDWARE_CONTEXTS_H
36 #define GMX_EWALD_TEST_HARDWARE_CONTEXTS_H
40 * Describes test environment class which performs hardware enumeration for unit tests.
42 * \author Aleksei Iupinov <a.yupinov@gmail.com>
43 * \ingroup module_ewald
49 #include <gtest/gtest.h>
51 #include "gromacs/ewald/pme_gpu_program.h"
52 #include "gromacs/gpu_utils/device_context.h"
53 #include "gromacs/hardware/gpu_hw_info.h"
54 #include "gromacs/utility/gmxassert.h"
62 //! Hardware code path being tested
69 //! Return a string useful for human-readable messages describing a \c codePath.
70 const char* codePathToString(CodePath codePath);
73 * A structure to describe a hardware context that persists over the lifetime
74 * of the test binary - an abstraction over PmeGpuProgram with a human-readable string.
76 struct TestHardwareContext
78 //! Hardware path for the code being tested.
80 //! Readable description
81 std::string description_;
82 //! Device information pointer
83 const DeviceInformation* deviceInfo_;
84 //! Local copy of the device context pointer
85 DeviceContext deviceContext_;
86 //! Persistent compiled GPU kernels for PME.
87 PmeGpuProgramStorage program_;
90 //! Retuns the code path for this context.
91 CodePath getCodePath() const { return codePath_; }
92 //! Returns a human-readable context description line
93 std::string getDescription() const { return description_; }
94 //! Getter for the DeviceContext
95 const DeviceContext& deviceContext() const { return deviceContext_; }
96 //! Returns the device info pointer
97 const DeviceInformation* getDeviceInfo() const { return deviceInfo_; }
98 //! Returns the persistent PME GPU kernels
99 const PmeGpuProgram* getPmeGpuProgram() const { return program_.get(); }
100 //! Constructs the context for CPU builds
101 TestHardwareContext(CodePath codePath, const char* description) :
103 description_(description)
105 GMX_RELEASE_ASSERT(codePath == CodePath::CPU,
106 "A GPU code path should provide DeviceInformation to the "
107 "TestHerdwareContext constructor.");
109 //! Constructs the context for GPU builds
110 TestHardwareContext(CodePath codePath, const char* description, const DeviceInformation& deviceInfo) :
112 description_(description),
113 deviceInfo_(&deviceInfo),
114 deviceContext_(deviceInfo),
115 program_(buildPmeGpuProgram(deviceInfo, deviceContext_))
117 GMX_RELEASE_ASSERT(codePath == CodePath::GPU,
118 "TestHerdwareContext tries to construct DeviceContext and PmeGpuProgram "
121 ~TestHardwareContext();
124 //! A container of handles to hardware contexts
125 typedef std::vector<std::unique_ptr<TestHardwareContext>> TestHardwareContexts;
128 * This class performs one-time test initialization (enumerating the hardware)
130 class PmeTestEnvironment : public ::testing::Environment
133 //! General hardware info
134 gmx_hw_info_t* hardwareInfo_;
135 //! Storage of hardware contexts
136 TestHardwareContexts hardwareContexts_;
139 //! This is called by GTest framework once to query the hardware
140 void SetUp() override;
141 //! Get available hardware contexts.
142 const TestHardwareContexts& getHardwareContexts() const { return hardwareContexts_; }
143 //! Get available hardware information.
144 const gmx_hw_info_t* hwinfo() const { return hardwareInfo_; }
147 //! Get the test environment
148 const PmeTestEnvironment* getPmeTestEnv();
150 /*! \brief This constructs the test environment during setup of the
151 * unit test so that they can use the hardware context. */
152 void callAddGlobalTestEnvironment();