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136 Module DocumentationParameters:dptr - Returned device pointerpPitch - Returned pitch of allocation in bytesWidthInBytes - Requested allocation width in bytesHeight - Requested allocation height in rowsElementSizeBytes - Size of largest reads/writes for rangeReturns:Note:CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_-ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_OUT_OF_MEMORYSee also:Note that this function may also return error codes from previous, asynchronous launches.cuArray3DCreate, cuArray3DGetDescriptor, cuArrayCreate, cuArrayDestroy, cuArrayGetDescriptor, cuMemAlloc,cuMemAllocHost, cuMemcpy2D, cuMemcpy2DAsync, cuMemcpy2DUnaligned, 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, cuMemsetD323.25.2.9 CUresult cuMemcpy2D (const CUDA_MEMCPY2D ∗ pCopy)Perform a 2D memory copy according to the parameters specified in pCopy. The CUDA_MEMCPY2D structure isdefined as:typedef struct CUDA_MEMCPY2D_st {unsigned int srcXInBytes, srcY;CUmemorytype srcMemoryType;const void *srcHost;CUdeviceptr srcDevice;CUarray srcArray;unsigned int srcPitch;unsigned int dstXInBytes, dstY;CUmemorytype dstMemoryType;void *dstHost;CUdeviceptr dstDevice;CUarray dstArray;unsigned int dstPitch;unsigned int WidthInBytes;unsigned int Height;} CUDA_MEMCPY2D;where:• srcMemoryType and dstMemoryType specify the type of memory of the source and destination, respectively;CUmemorytype_enum is defined as:Generated on Wed Apr 1 16:11:42 2009 for NVIDIA CUDA Library by Doxygen
3.25 Memory Management 137typedef enum CUmemorytype_enum {CU_MEMORYTYPE_HOST = 0x01,CU_MEMORYTYPE_DEVICE = 0x02,CU_MEMORYTYPE_ARRAY = 0x03} CUmemorytype;If srcMemoryType is CU_MEMORYTYPE_HOST, srcHost and srcPitch specify the (host) base address of thesource data and the bytes per row to apply. srcArray is ignored.If srcMemoryType is CU_MEMORYTYPE_DEVICE, srcDevice and srcPitch specify the (device) base addressof the source data and the bytes per row to apply. srcArray is ignored.If srcMemoryType is CU_MEMORYTYPE_ARRAY, srcArray specifies the handle of the source data. srcHost,srcDevice and srcPitch are ignored.If dstMemoryType is CU_MEMORYTYPE_HOST, dstHost and dstPitch specify the (host) base address of thedestination data and the bytes per row to apply. dstArray is ignored.If dstMemoryType is CU_MEMORYTYPE_DEVICE, dstDevice and dstPitch specify the (device) base addressof the destination data and the bytes per row to apply. dstArray is ignored.If dstMemoryType is CU_MEMORYTYPE_ARRAY, dstArray specifies the handle of the destination data.dstHost, dstDevice and dstPitch are ignored.• srcXInBytes and srcY specify the base address of the source data for the copy.For host pointers, the starting address isvoid* Start = (void*)((char*)srcHost+srcY*srcPitch + srcXInBytes);For device pointers, the starting address isCUdeviceptr 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;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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224 INDEXCUDA_TYPES, 200CUctx_flags
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228 INDEXcudaD3D9ResourceSetMapFlag
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NoticeALL NVIDIA DESIGN SPECIFICATI
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