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142 Module DocumentationCUdeviceptr Start = srcDevice+srcY*srcPitch+srcXInBytes;For CUDA arrays, srcXInBytes must be evenly divisible by the array element size.• dstXInBytes and dstY specify the base address of the destination data for the copy.For host pointers, the base address isvoid* dstStart = (void*)((char*)dstHost+dstY*dstPitch + dstXInBytes);For device pointers, the starting address isCUdeviceptr dstStart = dstDevice+dstY*dstPitch+dstXInBytes;For CUDA arrays, dstXInBytes must be evenly divisible by the array element size.• WidthInBytes and Height specify the width (in bytes) and height of the 2D copy being performed. Any pitchesmust be greater than or equal to WidthInBytes.cuMemcpy2D() returns an error if any pitch is greater than the maximum allowed (CU_DEVICE_ATTRIBUTE_-MAX_PITCH). cuMemAllocPitch() passes back pitches that always work with cuMemcpy2D(). On intra-devicememory copies (device ? device, CUDA array ? device, CUDA array ? CUDA array), cuMemcpy2D() may failfor pitches not computed by cuMemAllocPitch(). cuMemcpy2DUnaligned() does not have this restriction, butmay run significantly slower in the cases where cuMemcpy2D() would have returned an error code.Parameters:pCopy - Parameters for the memory copyReturns:Note:CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_-ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUESee also:Note that this function may also return error codes from previous, asynchronous launches.cuArray3DCreate, cuArray3DGetDescriptor, cuArrayCreate, cuArrayDestroy, cuArrayGetDescriptor, cuMemAlloc,cuMemAllocHost, cuMemAllocPitch, cuMemcpy2D, cuMemcpy2DAsync, cuMemcpy3D, cuMemcpy3DAsync,cuMemcpyAtoA, cuMemcpyAtoD, cuMemcpyAtoH, cuMemcpyAtoHAsync, cuMemcpyDtoA,cuMemcpyDtoD, cuMemcpyDtoH, cuMemcpyDtoHAsync, cuMemcpyHtoA, cuMemcpyHtoAAsync,cuMemcpyHtoD, cuMemcpyHtoDAsync, cuMemFree, cuMemFreeHost, cuMemGetAddressRange, cuMemGet-Info, cuMemHostAlloc, cuMemHostGetDevicePointer, cuMemsetD2D8, cuMemsetD2D16, cuMemsetD2D32,cuMemsetD8, cuMemsetD16, cuMemsetD32Generated on Wed Apr 1 16:11:42 2009 for NVIDIA CUDA Library by Doxygen
3.25 Memory Management 1433.25.2.12 CUresult cuMemcpy3D (const CUDA_MEMCPY3D ∗ pCopy)Perform a 3D memory copy according to the parameters specified in pCopy. The CUDA_MEMCPY3D structure isdefined as:typedef struct CUDA_MEMCPY3D_st {unsigned int srcXInBytes, srcY, srcZ;unsigned int srcLOD;CUmemorytype srcMemoryType;const void *srcHost;CUdeviceptr srcDevice;CUarray srcArray;unsigned int srcPitch; // ignored when src is arrayunsigned int srcHeight; // ignored when src is array; may be 0 if Depth==1unsigned int dstXInBytes, dstY, dstZ;unsigned int dstLOD;CUmemorytype dstMemoryType;void *dstHost;CUdeviceptr dstDevice;CUarray dstArray;unsigned int dstPitch; // ignored when dst is arrayunsigned int dstHeight; // ignored when dst is array; may be 0 if Depth==1unsigned int WidthInBytes;unsigned int Height;unsigned int Depth;} CUDA_MEMCPY3D;where:• srcMemoryType and dstMemoryType specify the type of memory of the source and destination, respectively;CUmemorytype_enum is defined as:typedef enum CUmemorytype_enum {CU_MEMORYTYPE_HOST = 0x01,CU_MEMORYTYPE_DEVICE = 0x02,CU_MEMORYTYPE_ARRAY = 0x03} CUmemorytype;If srcMemoryType is CU_MEMORYTYPE_HOST, srcHost, srcPitch and srcHeight specify the (host) base addressof the source data, the bytes per row, and the height of each 2D slice of the 3D array. srcArray is ignored.If srcMemoryType is CU_MEMORYTYPE_DEVICE, srcDevice, srcPitch and srcHeight specify the (device)base address of the source data, the bytes per row, and the height of each 2D slice of the 3D array. srcArray isignored.If srcMemoryType is CU_MEMORYTYPE_ARRAY, srcArray specifies the handle of the source data. srcHost,srcDevice, srcPitch and srcHeight are ignored.If dstMemoryType is CU_MEMORYTYPE_HOST, dstHost and dstPitch specify the (host) base address of thedestination data, the bytes per row, and the height of each 2D slice of the 3D array. dstArray is ignored.If dstMemoryType is CU_MEMORYTYPE_DEVICE, dstDevice and dstPitch specify the (device) base addressof the destination data, the bytes per row, and the height of each 2D slice of the 3D array. dstArray is ignored.Generated on Wed Apr 1 16:11:42 2009 for NVIDIA CUDA Library by Doxygen
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NVIDIA CUDAReference ManualVersion
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iiCONTENTS3.5 Stream Management . .
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ivCONTENTS3.10 Direct3D 9 Interoper
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viCONTENTS3.15.2.2 cudaComputeMode
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viiiCONTENTS3.24.2.11 cuParamSetv .
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xCONTENTS3.28.2.3 cuD3D9GetDirect3D
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xiiCONTENTS4.3.1 Detailed Descripti
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2 Module IndexGenerated on Wed Apr
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40 Module DocumentationcudaMemcpy3D
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44 Module Documentation3.8.2.27 cud
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224 INDEXCUDA_TYPES, 200CUctx_flags
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226 INDEXCU_FUNC_ATTRIBUTE_MAX_THRE
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228 INDEXcudaD3D9ResourceSetMapFlag
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230 INDEXcudaMemcpyToArrayCUDART_ME
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234 INDEXcuMemcpyAtoACUMEM, 147cuMe
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NoticeALL NVIDIA DESIGN SPECIFICATI
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