[petsc-dev] [petsc-maint] Complementarity problems: vinewton?sls or tao_?s?ls

Patrick Farrell patrick.farrell at maths.ox.ac.uk
Mon Mar 30 09:52:33 CDT 2015

Great, thanks for trying it out, and good catch on the failing test. Please let me know if you figure out what the problem is!


On 30 March 2015 15:32:16 BST, Jason Sarich <jason.sarich at gmail.com> wrote:
>Hi Patrick,
>I did try out the patch, thanks. I'll push it into next, but I want to
>tweak it a bit. I'd feel more comfortable if we caught only the
>error that petsc4py is throwing when getsubmatrix isn't implemented.
>the patch breaks my ex54mf test problem, there's a logic hole
>On Tue, Mar 24, 2015 at 1:25 PM, Patrick Farrell <
>patrick.farrell at maths.ox.ac.uk> wrote:
>> On 12/03/15 19:42, Patrick Farrell wrote:
>> > I know this suggestion isn't the cleanest, but could Jason's code
>> > try mat->ops->getsubmatrix, and if that fails fall back to the
>> > shell matrix code?
>> Given that (a) no one objected and (b) it solves the problem, I've
>> implemented
>> this suggestion in pefarrell/feature-submatrixfree-fallback of
>> https://bitbucket.org/pefarrell/petsc.
>> I didn't make a pull request because for some reason the pull request
>> tonnes of changes I had nothing to do with (I branched off Jason's
>> made the fix and pushed, but bitbucket seems to be confused). Jason,
>> you
>> please review/cherry-pick 13006bad66cf92787ea508665d0b39f5c9b8d46f ?
>> I'd really appreciate getting all of this stuff into next as soon as
>> possible.
>> It's been floating around in branches for months and I fear bitrot is
>> setting
>> in. My code has depended on this for months and it all works fine.
>> Thanks,
>> Patrick
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