[petsc-users] MatMatMult involving MPIAIJ and MATNEST

[Jed Brown]

Bikash Kanungo <bikash at umich.edu> writes:

> Hi Patrick,
>
> I have M^{-1} computed explicitly and stored as MATNEST. Providing
> MATCOMPOSITE of M^{-1}H to SLEPc standard eigenvalue solvers seems an
> option. Does it has any additional cost of explicitly building

Why are you storing M^{-1} as MATNEST?
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