[petsc-users] randomness from MATSOLVERPACKAGE

[Satish Balay]

On Wed, 30 May 2012, Hui Zhang wrote:

> I suspect there are some randomness from external matsolverpackage. I use a parallel matrix
> as preconditioner, and the preconditioner is exactly LU factored, then I saw the KSP (gmres)
> residuals are different from different runs.
> 
> Is it true of randomness from matsolverpackage?  Thanks a lot!

Which package?

I've seen mumps showing some differences between runs - but not others..

Satish