Re: [Libmesh-users] about the long time for the assemble of first step!

On Wed, 14 May 2008, luyi wrote: > I change the RKDG code to ExplicitSystem and I write a small Gassian > elimination solver, it works well and I can get high order results. > > > I have tried the command line "--implicit_neighbor_dofs" and it no > improvment. We may have a bug in sparsity patt

Re: [Libmesh-users] about the long time for the assemble of first step!

Hello,Roy, I change the RKDG code to ExplicitSystem and I write a small Gassian elimination solver, it works well and I can get high order results. I have tried the command line "--implicit_neighbor_dofs" and it no improvment. I ask Ben yesterday, can I write a GMRES+ILU(0) solver running in

[Libmesh-users] GMRES solver

Hello, Because of the throuble of PETSC, i want to write a solver by myself, I try to add a gassian elimination to my RKDG code and it works very fast, the parallel is only in the system.update(). Because the PETSC in libmesh solve a big matrix and make the ILU(0) precondition in the local proce