Hi all, Thank you all for all the helpful comments and suggestions!
I will let you know how it went. Thanks again, Kathrin > Am 08.12.2016 um 14:29 schrieb Roy Stogner <[email protected]>: > > > On Thu, 8 Dec 2016, Kathrin Smetana wrote: > >> Unfortunately my matrix has a dimension of 1M \times 1M… > > I was picturing smaller... > > I would not try 1M dofs with a direct solver. Saving an incomplete > Cholesky factorization would probably still be a big win. > > There's a LinearSolver::reuse_preconditioner() method which can tell > libMesh whether it should reuse or recompute a preconditioner on > subsequent solves, and the PetscLinearSolver respects that flag. I > don't think we have decent test coverage on this though so I'd not > trust it completely; run with all the PETSc info-printing options on > at first. > --- > Roy ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/xeonphi _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
