derivative(global const float * zeta, const float d, const int dim, int nx, int ny, int nz, int nw, const int dim_size, global float * result) -> kernel void
l_derivative(global const float * zeta, const float delta, const int dim, const int nx, const int ny, const int nz, const int nw, const int dim_size, global float * result, local float * buffer, local float * res_buffer) -> kernel void