That's a good point to take into consideration. We could imagine a large
enum with all possible flags returned by the solvers and have a generic
get_convergence_reason() function. The return value could be OR'd / AND'd
against any flag. This speaks in favor of a common Solver base class...
Dana
On Wed, Feb 12, 2014 at 5:10 PM, John Peterson <jwpeter...@gmail.com> wrote:
>
>
>
> On Wed, Feb 12, 2014 at 9:05 AM, Roy Stogner <royst...@ices.utexas.edu>wrote:
>
>>
>> On Wed, 12 Feb 2014, Dana Christen wrote:
>>
>> > I need a way to retrieve the "convergence reason" flag provided by the
>> PETSc iterative solvers from libMesh. Currently, the only way to access
>> > this information is to print it with
>> PetscLinearSolver::print_converged_reason(), which is not very convenient.
>> I've been thinking about extending
>> > the libMesh interface to provide this information: an enum and a getter
>> in LinearSolver typically.
>> >
>> > It would be good to have a list of convergence flags that make sense
>> for all the solvers available in libMesh.
>> >
>> > Would such an interface make sense in libMesh?
>>
>> It's on my own to-do list, but buried so far down that I don't expect
>> to ever get to it myself. I'd love to see a patch.
>>
>
> What about the DiffSolver::SolveResult enum?
>
> Granted it is specific to FEMSystem at the moment, but any change to
> LinearSolver should be compatible with this.
>
> --
> John
>
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