transpose_gold.cpp

cuda平台开发的矩阵变换并行操作（Matrix transpose）

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/* Small Matrix transpose with Cuda (Example for a 16x16 matrix)
* Reference solution.
*/

////////////////////////////////////////////////////////////////////////////////
// export C interface
extern "C" 
void computeGold( float* reference, float* idata, 
                  const unsigned int size_x, const unsigned int size_y );

////////////////////////////////////////////////////////////////////////////////
//! Compute reference data set
////////////////////////////////////////////////////////////////////////////////
void
computeGold( float* reference, float* idata, 
            const unsigned int size_x, const unsigned int size_y ) 
{
    // transpose matrix
    for( unsigned int y = 0; y < size_y; ++y) 
    {
        for( unsigned int x = 0; x < size_x; ++x) 
        {
            reference[(x * size_y) + y] = idata[(y * size_x) + x];
        }
    }  
}