// OpenCL Kernel Function for element by element vector addition

__kernel void VectorAdd(__global const float* a, __global const float* b, __global float* c, int iNumElements)

{

    // get index into global data array

    int iGID = get_global_id(0);

    // bound check (equivalent to the limit on a 'for' loop for standard/serial C code

    if (iGID >= iNumElements)  {return;}    

    // add the vector elements

    c[iGID] = a[iGID] + b[iGID];

}