Function hipMemcpy

pub unsafe extern "C" fn hipMemcpy(
    dst: *mut c_void,
    src: *const c_void,
    sizeBytes: usize,
    kind: hipMemcpyKind,
) -> hipError_t

@brief Copy data from src to dst.

It supports memory from host to device, device to host, device to device and host to host The src and dst must not overlap.

For hipMemcpy, the copy is always performed by the current device (set by hipSetDevice). For multi-gpu or peer-to-peer configurations, it is recommended to set the current device to the device where the src data is physically located. For optimal peer-to-peer copies, the copy device must be able to access the src and dst pointers (by calling hipDeviceEnablePeerAccess with copy agent as the current device and src/dest as the peerDevice argument. if this is not done, the hipMemcpy will still work, but will perform the copy using a staging buffer on the host. Calling hipMemcpy with dst and src pointers that do not match the hipMemcpyKind results in undefined behavior.

@param[out] dst Data being copy to @param[in] src Data being copy from @param[in] sizeBytes Data size in bytes @param[in] kind Kind of transfer @return #hipSuccess, #hipErrorInvalidValue, #hipErrorUnknown

@see hipArrayCreate, hipArrayDestroy, hipArrayGetDescriptor, hipMemAlloc, hipMemAllocHost, hipMemAllocPitch, hipMemcpy2D, hipMemcpy2DAsync, hipMemcpy2DUnaligned, hipMemcpyAtoA, hipMemcpyAtoD, hipMemcpyAtoH, hipMemcpyAtoHAsync, hipMemcpyDtoA, hipMemcpyDtoD, hipMemcpyDtoDAsync, hipMemcpyDtoH, hipMemcpyDtoHAsync, hipMemcpyHtoA, hipMemcpyHtoAAsync, hipMemcpyHtoDAsync, hipMemFree, hipMemFreeHost, hipMemGetAddressRange, hipMemGetInfo, hipMemHostAlloc, hipMemHostGetDevicePointer