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35 /*! \libinternal \file
36 * \brief Declare functions to be used to cast CPU types to compatible GPU types.
38 * \author Artem Zhmurov <zhmurov@gmail.com>
42 #ifndef GMX_GPU_UTILS_TYPECASTS_CUH
43 #define GMX_GPU_UTILS_TYPECASTS_CUH
47 #include "gromacs/math/vectypes.h"
49 /*! \brief Cast RVec buffer to float3 buffer.
51 * \param[in] in The RVec buffer to cast.
53 * \returns Buffer, casted to float3*.
55 static inline __host__ __device__ float3* asFloat3(gmx::RVec* in)
57 static_assert(sizeof(in[0]) == sizeof(float3),
58 "Size of the host-side data-type is different from the size of the device-side "
60 return reinterpret_cast<float3*>(in);
63 /*! \brief Cast pointer RVec buffer to a pointer to float3 buffer.
65 * \param[in] in The Pointer to RVec buffer to cast.
67 * \returns Buffer pointer, casted to float3*.
69 static inline __host__ __device__ float3** asFloat3Pointer(gmx::RVec** in)
71 static_assert(sizeof((*in)[0]) == sizeof(float3),
72 "Size of the host-side data-type is different from the size of the device-side "
74 return reinterpret_cast<float3**>(in);
76 static inline __host__ __device__ const float3* const* asFloat3Pointer(const gmx::RVec* const* in)
78 static_assert(sizeof((*in)[0]) == sizeof(float3),
79 "Size of the host-side data-type is different from the size of the device-side "
81 return reinterpret_cast<const float3* const*>(in);
84 #endif // GMX_GPU_UTILS_TYPECASTS_CUH