[petsc-dev] a TS feature

[Sean Farley]

On Mon, Dec 10, 2012 at 11:32 PM, Emil Constantinescu
<emconsta at mcs.anl.gov> wrote:
> On 12/10/12 11:06 PM, Sean Farley wrote:
>>
>> On Mon, Dec 10, 2012 at 10:40 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:
>>>
>>> On Mon, Dec 10, 2012 at 8:36 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>>>>
>>>>
>>>>   I'd the ability to provide to TS a list of times at which I'd like the
>>>> ODE integrator have exactly match that time on a time-step (that is
>>>> adjust
>>>> the delta t near that time to hit it exactly).  This is something Shri
>>>> needs.
>>>
>>>
>>>
>>> Is this general enough to add to the library itself?
>>
>>
>> What Barry is describing is what I've asked for before when revamping
>> the TS interface. It's a dead-simple feature: you just pass a list of
>> times. It shouldn't require monkeying around with the adaptive
>> controller
>
>
> Sean, do you need it to stop times or produce the solution at given? The
> solution can be produced via interpolation (would be relatively easy to
> implement - Matlab does that).

This is (as far I understand) all that CVODE does as well, which would
fine for me as well.