> > > > Mark, should we provide some more flexible way to label "fields"? It > will be more complicated than the present code and I think packing into > interlaced format is faster anyway. >
I'm thinking this would entail reordering the matrix and inverting this permutation for the fine grid R & P. This would be some work for a small number of people. It might be nice to be able to detect this and give a warning but I don't see how this could be done.
