NVIDIA CUDA

130 Module Documentationtypedef enum CUarray_format_enum {CU_AD_FORMAT_UNSIGNED_INT8 = 0x01,CU_AD_FORMAT_UNSIGNED_INT16 = 0x02,CU_AD_FORMAT_UNSIGNED_INT32 = 0x03,CU_AD_FORMAT_SIGNED_INT8 = 0x08,CU_AD_FORMAT_SIGNED_INT16 = 0x09,CU_AD_FORMAT_SIGNED_INT32 = 0x0a,CU_AD_FORMAT_HALF = 0x10,CU_AD_FORMAT_FLOAT = 0x20} CUarray_format;• NumChannels specifies the number of packed components per CUDA array element; it may be 1, 2, or 4;• Flags provides for future features. For now, it must be set to 0.Here are examples of CUDA array descriptions:Description for a CUDA array of 2048 floats:CUDA_ARRAY3D_DESCRIPTOR desc;desc.Format = CU_AD_FORMAT_FLOAT;desc.NumChannels = 1;desc.Width = 2048;desc.Height = 0;desc.Depth = 0;Description for a 64 x 64 CUDA array of floats:CUDA_ARRAY3D_DESCRIPTOR desc;desc.Format = CU_AD_FORMAT_FLOAT;desc.NumChannels = 1;desc.Width = 64;desc.Height = 64;desc.Depth = 0;Description for a width x height x depth CUDA array of 64-bit, 4x16-bit float16’s:CUDA_ARRAY3D_DESCRIPTOR desc;desc.FormatFlags = CU_AD_FORMAT_HALF;desc.NumChannels = 4;desc.Width = width;desc.Height = height;desc.Depth = depth;Parameters:pHandle - Returned arraypDesc - 3D array descriptorReturns:Note:CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_-ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_OUT_OF_MEMORY,CUDA_ERROR_UNKNOWNNote 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