[petsc-users] MATNEST with shell matrices

[Amneet Bhalla]

On Thu, Feb 21, 2013 at 2:57 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> that you're happy with and that performs well with fieldsplit or custom
> preconditioning that will be amenable to your MatShells


Is fieldsplit an alternative approach to MatNest and VecNest? The problem
is that I am working on nonnative PETSc
data; so I am not sure which recent methods would support shell approach.
All I want is to use PETSc's algorithm
for solving multicomponent system of equation. I am not bothering about
preconditioning yet, as I will be trying
a custom preconditioner down the road.


-- 
Amneet
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