[petsc-dev] [petsc-maint #43201] Questions about TS functionality.

[Barry Smith]

    Mike,

     The TS component is rapidly evolving so it is a bit hard to say  
exactly what is supported and how well.

     We hope to concentrate a lot of effort on making TS more general  
(including some DAE support) and with better methods.

     Your feedback on specifically what you need and how you would  
like to provide (write) your code would be very helpful to use as we  
improve/rewrite/redesign TS.

     Yes, the limitations you point out have always been in TS, we  
hope to improve this. I'm sending this out to our development mailing  
list.

    Barry

On Mar 15, 2010, at 2:00 PM, Michael E Henderson wrote:

> Hi all,
>
> I'm looking at using the TS objects, and have a couple questions,  
> mostly
> to verify that what I'm looking for really isn't there.
>
> Our systems are usually written as  (c(u) u )' = F(u,t).  It looks  
> like TS
> requires that I translate this into u'=F(u,t). Is that correct?
>
> Is there any support for DAE's?
>
> Thanks,
>
> Mike
> ------------------------------------------------------------------------------------------------------------------------------------
> Mathematical Sciences, TJ Watson Research Center
> mhender at watson.ibm.com
> http://www.research.ibm.com/people/h/henderson/
> http://multifario.sourceforge.net/
>
>
> Hi all,
>
> I'm looking at using the TS objects, and have a couple questions,  
> mostly to verify that what I'm looking for really isn't there.
>
> Our systems are usually written as  (c(u) u )' = F(u,t).  It looks  
> like TS requires that I translate this into u'=F(u,t). Is that  
> correct?
>
> Is there any support for DAE's?
>
> Thanks,
>
> Mike
> ------------------------------------------------------------------------------------------------------------------------------------
> Mathematical Sciences, TJ Watson Research Center
> mhender at watson.ibm.com
> http://www.research.ibm.com/people/h/henderson/
> http://multifario.sourceforge.net/

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