pub fn cholesky_solve_gpu(
hessian: ArrayView2<'_, f64>,
rhs: ArrayView2<'_, f64>,
) -> Result<(Array2<f64>, f64), String>pub fn cholesky_solve_gpu(
hessian: ArrayView2<'_, f64>,
rhs: ArrayView2<'_, f64>,
) -> Result<(Array2<f64>, f64), String>