grid command fails with non-convergence
Donghui has found certain parameter values where grids fail. He is running PDR models and varying the density and the ISM radiation field. (For the CO comparison project).
most density/ G0 pairs are ok. the ones that do fail in the grid work ok by themselves. Sounds like an initialization problem.
in the grid the first point that fails is density 5.4 and G0 4.7.
the grid does not fail if he varies the density but keeps G0 fixed. The grid does fail if the density is fixed but G0 varied.
this is incomplete - will be expanded as he does more testing