NVIDIA CUDA

144 Module DocumentationIf dstMemoryType is CU_MEMORYTYPE_ARRAY, dstArray specifies the handle of the destination data.dstHost, dstDevice, dstPitch and dstHeight are ignored.• srcXInBytes, srcY and srcZ specify the base address of the source data for the copy.For host pointers, the starting address isvoid* Start = (void*)((char*)srcHost+(srcZ*srcHeight+srcY)*srcPitch + srcXInBytes);For device pointers, the starting address isCUdeviceptr Start = srcDevice+(srcZ*srcHeight+srcY)*srcPitch+srcXInBytes;For CUDA arrays, srcXInBytes must be evenly divisible by the array element size.• dstXInBytes, dstY and dstZ specify the base address of the destination data for the copy.For host pointers, the base address isvoid* dstStart = (void*)((char*)dstHost+(dstZ*dstHeight+dstY)*dstPitch + dstXInBytes);For device pointers, the starting address isCUdeviceptr dstStart = dstDevice+(dstZ*dstHeight+dstY)*dstPitch+dstXInBytes;For CUDA arrays, dstXInBytes must be evenly divisible by the array element size.• WidthInBytes, Height and Depth specify the width (in bytes), height and depth of the 3D copy being performed.Any pitches must be greater than or equal to WidthInBytes.cuMemcpy3D() returns an error if any pitch is greater than the maximum allowed (CU_DEVICE_ATTRIBUTE_-MAX_PITCH).The srcLOD and dstLOD members of the CUDA_MEMCPY3D structure must be set to 0.Parameters:pCopy - Parameters for the memory copyReturns:Note:CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_-ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUENote that this function may also return error codes from previous, asynchronous launches.Generated on Wed Apr 1 16:11:42 2009 for NVIDIA CUDA Library by Doxygen