[petsc-users] How to use PETSc preconditioners in SLEPc?

[Heikki Virtanen]

Thanks! If there is a way to avoid command line options,
it would be excellent. Sorry, that I didn't remember to 
mention this one. Your example has command line options
"st_ksp_type","st_pc_type","st_pc_hypre_type"
Do they have an equivalent function calls?

-Heikki

> > Hi, I try to solve eigenvalue problem using EPS object 
> > and Krylov-Schur solver. Everything goes well and I 
> > can solve the problems that I want. 
> > 
> > Anyway, I want to use other preconditioners than the 
> > default preconditioner. It is a little bit unclear for
> > me how to do this. For example, I have installed
> > PETSc with Hypre. How can use BoomerAMG preconditioner
> > instead of ILU? ( SLEPc chooses this by default ) 
> > 
> > -Heikki
> 
> Have a look at section 3.4.1 of SLEPc's users guide. For instance, you can try something like this:
> 
> $ ./program -st_ksp_type bcgs -st_pc_type hypre -st_pc_hypre_type boomeramg
> 
> Jose
> 
 		 	   		  
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