Re: [Libmesh-users] Use user-defined preconditioner in libMesh

2016-05-25 Thread Andrea
Xujun Zhao writes: > > Hi folks, > > I am trying to use the user-defined preconditioner for my Stokes problem. I > first add my preconditioning matrix by > system.add_matrix("Preconditioner"); > > then assemble this matrix by a subroutine. My question is how I can tell > libmesh solver to use

[Libmesh-users] Use user-defined preconditioner in libMesh

2015-03-02 Thread Xujun Zhao
Hi folks, I am trying to use the user-defined preconditioner for my Stokes problem. I first add my preconditioning matrix by system.add_matrix("Preconditioner"); then assemble this matrix by a subroutine. My question is how I can tell libmesh solver to use this preconditioner when the problem is