gistfile1.txt

#define __kernel
#define __global

void saxpy_cpu(float *y,
               float *x,
               float a,
               int n)
{
    for (int i = 0; i < n; i++) {
        y[i] = a * x[i] + y[i];
    }
}

__kernel
void saxpy_gpgpu(__global float *y,
                 __global float *x,
                 float a)
{
    int i = get_global_id(0);
    y[i] = a * x[i] + y[i];
}

__kernel
void vecAdd(__global float *a,
            __global float *b,
            __global float *c)
{
  size_t i = get_global_id(0);
  float4 r = vload4(i, a) + vload4(i, b);
  double4 rsq = r * r;
  vstore4(rsq, i, c);
}