How to interpolate from coarse to finer resolution grid

[czc-zju]

How to interpolate from coarse to finer resolution grid when amr.max_level = 0 in PeleLM?

[drummerdoc]

Look at amex:FillFatchTwoLevels, for example.

[esclapez]

What are you trying to do ? Are you trying to restart a simulation with a fine resolution starting from a coarser one ? If amr.max_level = 0, you don't have fine grid.

[czc-zju]

Keep amr.max_level = 0 and then I want to map data from the coarse grid to finer resolution grid for computation, but I'm new here and I'm trying to do this, thank you so much.