Memory management (deprecated)

Memory management (deprecated)#

hipError_t hipMallocHost(void **ptr, size_t size)#

Allocate pinned host memory [Deprecated].

If size is 0, no memory is allocated, *ptr returns nullptr, and hipSuccess is returned.

Warning

This API is deprecated, use hipHostMalloc() instead

Parameters:

  • ptr – [out] Pointer to the allocated host pinned memory

  • size – [in] Requested memory size

Returns:

hipSuccess, hipErrorOutOfMemory

hipError_t hipMemAllocHost(void **ptr, size_t size)#

Allocate pinned host memory [Deprecated].

If size is 0, no memory is allocated, *ptr returns nullptr, and hipSuccess is returned.

Warning

This API is deprecated, use hipHostMalloc() instead

Parameters:

  • ptr – [out] Pointer to the allocated host pinned memory

  • size – [in] Requested memory size

Returns:

hipSuccess, hipErrorOutOfMemory

hipError_t hipHostFree(void *ptr)#

Free memory allocated by the HIP-Clang hip host memory allocation API This API performs an implicit hipDeviceSynchronize() call. If pointer is NULL, the hip runtime is initialized and hipSuccess is returned.

See also

hipMalloc, hipMallocPitch, hipFree, hipMallocArray, hipFreeArray, hipMalloc3D, hipMalloc3DArray, hipHostMalloc

Parameters:

ptr – [in] Pointer to memory to be freed

Returns:

hipSuccess, hipErrorInvalidValue (if pointer is invalid, including device pointers allocated with hipMalloc)

hipError_t hipMemcpyToArray(hipArray_t dst, size_t wOffset, size_t hOffset, const void *src, size_t count, hipMemcpyKind kind)#

Copies data between host and device [Deprecated].

See also

hipMemcpy, hipMemcpy2DToArray, hipMemcpy2D, hipMemcpyFromArray, hipMemcpyToSymbol, hipMemcpyAsync

Warning

This API is deprecated.

Parameters:

  • dst – [in] Destination memory address

  • wOffset – [in] Destination starting X offset

  • hOffset – [in] Destination starting Y offset

  • src – [in] Source memory address

  • count – [in] size in bytes to copy

  • kind – [in] Type of transfer

Returns:

hipSuccess, hipErrorInvalidValue, hipErrorInvalidPitchValue, hipErrorInvalidDevicePointer, hipErrorInvalidMemcpyDirection

hipError_t hipMemcpyFromArray(void *dst, hipArray_const_t srcArray, size_t wOffset, size_t hOffset, size_t count, hipMemcpyKind kind)#

Copies data between host and device [Deprecated].

See also

hipMemcpy, hipMemcpy2DToArray, hipMemcpy2D, hipMemcpyFromArray, hipMemcpyToSymbol, hipMemcpyAsync

Warning

This API is deprecated.

Parameters:

  • dst – [in] Destination memory address

  • srcArray – [in] Source memory address

  • wOffset – [in] Source starting X offset

  • hOffset – [in] Source starting Y offset

  • count – [in] Size in bytes to copy

  • kind – [in] Type of transfer

Returns:

hipSuccess, hipErrorInvalidValue, hipErrorInvalidPitchValue, hipErrorInvalidDevicePointer, hipErrorInvalidMemcpyDirection