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35 #ifndef GMX_GPU_UTILS_DEVICE_STREAM_H
36 #define GMX_GPU_UTILS_DEVICE_STREAM_H
38 /*! \libinternal \file
40 * \brief Declarations for DeviceStream class.
42 * \author Artem Zhmurov <zhmurov@gmail.com>
43 * \author Mark Abraham <mark.j.abraham@gmail.com>
45 * \ingroup module_gpu_utils
51 #if GMX_GPU == GMX_GPU_OPENCL
52 # include "gromacs/gpu_utils/gmxopencl.h"
54 #include "gromacs/utility/classhelpers.h"
56 struct DeviceInformation;
59 //! Enumeration describing the priority with which a stream operates.
60 enum class DeviceStreamPriority : int
62 //! High-priority stream
64 //! Normal-priority stream
66 //! Conventional termination of the enumeration
70 // Stub for device context
74 //! Default constructor
81 * \param[in] deviceInfo Platform-specific device information (only used in OpenCL).
82 * \param[in] deviceContext Device context (not used in CUDA).
83 * \param[in] priority Stream priority: high or normal.
84 * \param[in] useTiming If the timing should be enabled (not used in CUDA).
86 void init(const DeviceInformation& deviceInfo,
87 const DeviceContext& deviceContext,
88 DeviceStreamPriority priority,
89 const bool useTiming);
91 /*! \brief Construct and init.
93 * \param[in] deviceInfo Platform-specific device information (only used in OpenCL).
94 * \param[in] deviceContext Device context (only used in OpenCL).
95 * \param[in] priority Stream priority: high or normal (only used in CUDA).
96 * \param[in] useTiming If the timing should be enabled (only used in OpenCL).
98 DeviceStream(const DeviceInformation& deviceInfo,
99 const DeviceContext& deviceContext,
100 DeviceStreamPriority priority,
101 const bool useTiming)
103 init(deviceInfo, deviceContext, priority, useTiming);
106 //! Synchronize the steam
107 void synchronize() const;
109 #if GMX_GPU == GMX_GPU_CUDA
112 cudaStream_t stream() const;
113 //! Setter (temporary, will be removed in the follow-up)
114 void setStream(cudaStream_t stream) { stream_ = stream; }
117 cudaStream_t stream_ = nullptr;
119 #elif GMX_GPU == GMX_GPU_OPENCL
122 cl_command_queue stream() const;
123 //! Setter (temporary, will be removed in the follow-up)
124 void setStream(cl_command_queue stream) { stream_ = stream; }
127 cl_command_queue stream_ = nullptr;
131 GMX_DISALLOW_COPY_MOVE_AND_ASSIGN(DeviceStream);
134 #endif // GMX_GPU_UTILS_DEVICE_STREAM_H