"Alletto, John M" <[email protected]> writes:

Hi Barry,

I am using a Star stencil, and yes a higher order finite difference scheme.

Please help me understand how I instantiate more than the default piecewise linear interpolation between levels.

If you want higher order interpolation, you have to write it. It won't reduce your memory footprint, but might speed convergence (if your method actually achieves high order and is in the asymptotic regime -- rare for production models).