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hamr_hip_copy.h
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#ifndef hamr_hip_copy_h
#define hamr_hip_copy_h
#include "hamr_config.h"
#include "hamr_env.h"
#include <memory>
/// heterogeneous accelerator memory resource
namespace hamr
{
#if !defined(HAMR_ENABLE_OBJECTS)
/** Copies an array to the active HIP device.
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible on the host
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T, typename U>
int copy_to_hip_from_host(T *dest, const U *src, size_t n_elem,
typename std::enable_if<!std::is_arithmetic<T>::value>::type * = nullptr);
#else
/** Copies an array to the active HIP device (fast path for arrays of
* arithmetic types of the same type).
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible on the host
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T>
int copy_to_hip_from_host(T *dest, const T *src, size_t n_elem,
typename std::enable_if<std::is_arithmetic<T>::value>::type * = nullptr);
#endif
/** Copies an array to the active HIP device.
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible on the host
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T, typename U>
int copy_to_hip_from_host(T *dest, const U *src, size_t n_elem
#if !defined(HAMR_ENABLE_OBJECTS)
,typename std::enable_if<std::is_arithmetic<T>::value>::type * = nullptr
#endif
);
#if !defined(HAMR_ENABLE_OBJECTS)
/** Copies an array on the active HIP device.
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible in HIP
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T, typename U>
int copy_to_hip_from_hip(T *dest, const U *src, size_t n_elem,
typename std::enable_if<!std::is_arithmetic<T>::value>::type * = nullptr);
#else
/** Ccopies an array on the active HIP device (fast path for arrays of
* arithmetic types of the same type).
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible on the host
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T>
int copy_to_hip_from_hip(T *dest, const T *src, size_t n_elem,
typename std::enable_if<std::is_arithmetic<T>::value>::type * = nullptr);
#endif
/** Copies an array on the active HIP device.
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible in HIP
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T, typename U>
int copy_to_hip_from_hip(T *dest, const U *src, size_t n_elem
#if !defined(HAMR_ENABLE_OBJECTS)
,typename std::enable_if<std::is_arithmetic<T>::value>::type * = nullptr
#endif
);
#if !defined(HAMR_ENABLE_OBJECTS)
/** Copies an array to the active HIP device from the named HIP device,
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible in HIP
* @param[in] src_device the HIP device on which src is allocated
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T, typename U>
int copy_to_hip_from_hip(T *dest, const U *src, int src_device, size_t n_elem,
typename std::enable_if<!std::is_arithmetic<T>::value>::type * = nullptr);
#else
/** Copies an array to the active HIP device from the named HIP device, (fast
* path for arrays of arithmetic types of the same type).
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible in HIP
* @param[in] src_device the HIP device on which src is allocated
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T>
int copy_to_hip_from_hip(T *dest, const T *src, int src_device, size_t n_elem,
typename std::enable_if<std::is_arithmetic<T>::value>::type * = nullptr);
#endif
/** Copies an array on the active HIP device.
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible in HIP
* @param[in] src_device the HIP device on which src is allocated
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T, typename U>
int copy_to_hip_from_hip(T *dest, const U *src, int src_device, size_t n_elem
#if !defined(HAMR_ENABLE_OBJECTS)
,typename std::enable_if<std::is_arithmetic<T>::value>::type * = nullptr
#endif
);
#if !defined(HAMR_ENABLE_OBJECTS)
/** Copies an array from the active HIP device.
*
* @param[in] dest an array of n elements accessible on the host
* @param[in] src an array of n elements accessible in HIP
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T, typename U>
int copy_to_host_from_hip(T *dest, const U *src, size_t n_elem,
typename std::enable_if<!std::is_arithmetic<T>::value>::type * = nullptr);
#else
/** Copies an array from the active HIP device (fast path for arrays of
* arithmetic types of the same type).
*
* @param[in] dest an array of n elements accessible in HIP
* @param[in] src an array of n elements accessible on the host
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T>
int copy_to_host_from_hip(T *dest, const T *src, size_t n_elem,
typename std::enable_if<std::is_arithmetic<T>::value>::type * = nullptr);
#endif
/** Copies an array from the active HIP device.
*
* @param[in] dest an array of n elements accessible on the host
* @param[in] src an array of n elements accessible in HIP
* @param[in] n_elem the number of elements in the array
* @returns 0 if there were no errors
*/
template <typename T, typename U>
int copy_to_host_from_hip(T *dest, const U *src, size_t n_elem
#if !defined(HAMR_ENABLE_OBJECTS)
,typename std::enable_if<std::is_arithmetic<T>::value>::type * = nullptr
#endif
);
}
#if !defined(HAMR_SEPARATE_IMPL)
#include "hamr_hip_copy_impl.h"
#endif
#endif