[petsc-users] Can I use TS routines for operator split formulation

[Barry Smith]

  What is the ODE you are solving?

   Barry

On Jun 9, 2014, at 11:51 AM, Shriram Srinivasan <shriram at ualberta.ca> wrote:

> Hi,
> I am working with the (discretised) PDE:
> (u* - u_prev) + (tau )A u* = f1
> (u - u*) + (tau)B u = f2
> Here A and B are constant matrices which have been assembled, u_prev is solution at previous time level, tau is the time step and u is the solution at current time level.
> 
> It appears to me I cannot rewrite this in a form required by the TS module. So my question(s) are:
> 
> 1) Am I missing something here, or is there a way to cast this into the framework of TS
> 2) If there isn’t a way, am I better off doing the time stepping myself ?
> 
> Thanks,
> Shriram