[petsc-users] SPAI preconditioner in PETSc

[Jed Brown]

On Tue, May 10, 2011 at 14:18, Danesh Daroui <danesh.daroui at ltu.se> wrote:

> Thanks Jed. Can I have both implementations of SPAI and use each of them
> whenever I want or I just can have one at time?
>

Absolutely. You can install PETSc with every external package you might
possibly ever want to use, then choose which one you use on any particular
run (or per-object if your code solves multiple systems) at run-time with
options like -pc_type.
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