On Thu, Feb 21, 2019 at 3:45 PM Zhu, Qiming via petsc-users <
petsc-users@mcs.anl.gov> wrote:
>
> Dear all,
>
>
> Sorry to disturb you. I am a user of Petsc. I am trying to use Fieldsplit
> in Petsc to do preconditioning for Navier-Stokes problem. I have some
> problems when I trying to use Fields
Dear all,
Sorry to disturb you. I am a user of Petsc. I am trying to use Fieldsplit in
Petsc to do preconditioning for Navier-Stokes problem. I have some problems
when I trying to use Fieldsplit function. I am now defining the nest matrix
first, then I get the IS from nested matrix. But I fin
