Just call the appropriate preallocation routine. It can't very well be done in-place because the data structure gets repacked in Assembly.
On Tue, Jan 22, 2013 at 6:54 PM, John Fettig <john.fettig at gmail.com> wrote: > Is it possible to reset a matrix to the state it was in before any values > were set? I.e. removing all nonzero structure as well as values and > returning it to just a pre-allocated state? > > Regards, > John > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130122/4812a458/attachment.html>
