/**
 * covariance.cl: This file is part of the PolyBench/GPU 1.0 test suite.
 *
 *
 * Contact: Scott Grauer-Gray <sgrauerg@gmail.com>
 * Will Killian <killian@udel.edu>
 * Louis-Noel Pouchet <pouchet@cse.ohio-state.edu>
 * Web address: http://www.cse.ohio-state.edu/~pouchet/software/polybench/GPU
 */

#if defined(cl_khr_fp64)  // Khronos extension available?
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
#elif defined(cl_amd_fp64)  // AMD extension available?
#pragma OPENCL EXTENSION cl_amd_fp64 : enable
#endif

typedef float DATA_TYPE;

__kernel void reduce_kernel(__global DATA_TYPE *mean, __global DATA_TYPE *data, int m, int n) 
{
	int j = get_global_id(0);    
	int i = get_global_id(1);

	if ((i < n) && (j < m))
	{
		data[i * m + j] -= mean[j];	
	}
}

