On Feb 12, 2013, at 11:27 PM, Jed Brown <[email protected]> wrote:

On Tue, Feb 12, 2013 at 11:24 PM, Barry Smith <[email protected]> wrote: Then a PetscSection is a collection of lists of integers. An IS is a single list of integers. So let's make IS be a collection of lists of integers (what was previously a PetscSection) and the current use of IS becomes a special case.

Then what does ISGetIndices() become?

Then would depend on how we would define how the grouping is handled and how the GetIndices would be used. Some possibilities 1) ISGetIndices(is,int group_number, &indices) gives the indices for a group or 2) ISGetIndices(is,&indices) simply returns all the indices for all the groups