[petsc-users] AMG options

[Jarunan Panyasantisuk]

>     - Is there a certain order in setting these options? Can I set it
>     anywhere in my code e.g. after set -ksp_type?
>
>
> You can set it anywhere before PCSetFromOptions() which is probably 
> called via KSPSetFromOptions or SNESSetFromOptions().
This could be one of the reason. I will check if there is any error as well.
>
>
>     The things I am trying to do is to reuse the solvers and
>     preconditioners for several equations and reset only their
>     solver/preconds type. If you have any advice, I would appreciate.
>
>
> You are solving different equations several times and trying to reuse? 
> Or you are iterating on a nonlinear problem?
The equations will be solved one after another. They are not solved at 
the same time. Yes, it is iterative.

Thank you for you advice.
Jarunan

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120314/3022fead/attachment.htm>