[petsc-users] Redo PetscOptions From Commandline

[Matthew Knepley]

On Fri, Apr 5, 2013 at 9:53 AM, Derek Gaston <friedmud at gmail.com> wrote:

> On Tue, Apr 2, 2013 at 12:09 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>
>>     You can use PetscGetArgs() followed by by PetscOptionsInsert(). Let
>> us know if you have any troubles with this.
>>
>
> Hmmm... any chance of getting a version of that function that takes an
> MPI_Comm?  It is using PETSC_COMM_WORLD implicitly inside it.... and I need
> to call it asynchronously on sub-communicators.
>

I don't think we would put that in the interface since it would allow
inconsistencies among options. You can
call PetscOptionsInsertString() yourself to manage that.

   Matt


> For now I have it working by swapping out PETSC_COMM_WORLD with my
> sub-communicator before calling that function.... but that's less than
> ideal ;-)
>
> Derek
>



-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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