PETSc version 3.0.0-p2

Billy Araújo billy at
Sun Jan 25 15:50:56 CST 2009

I am only running my application on a dual-core intel machine (2 processors).

I just noted that the GMRES solver is much slower but before I was using LAMMPI so maybe it has to do with OpenMPI. I have to test it further and then I will keep you posted.



-----Mensagem original-----
De: petsc-users-bounces at em nome de Barry Smith
Enviada: dom 25-01-2009 20:22
Para: PETSc users list
Assunto: Re: PETSc version 3.0.0-p2

    How are you determining "convergence"? Run old and new with - 
ksp_monitor_true_residual -ksp_truemonitor

     We did change approach to convergence when running with a nonzero  
initial guess.


On Jan 25, 2009, at 12:35 PM, Billy Araújo wrote:

> I compiled my code using the new version of PETSc but the  
> convergence of the GMRES has suffered greatly, specially in  
> parallel. I am using GMRES with ASM preconditioner.
> Has there been any change?
> Billy.

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