On Mon, Jun 13, 2016 at 11:03 AM, Xujun Zhao <xzha...@gmail.com> wrote:
> Hi John, > > Thank you for your information. I am using the recent version of libMesh. > > Also I finally figured out the culprit last weekend, which is due to hypre > preconditioner used in one of my fieldsplit variables. > The BoomerAMG uses very large memory during the KSPSolve() > I see... it's possible that GAMG (algebraic multigrid preconditioner built into PETSc) might have less memory overhead than BoomerAMG. I'm not sure exactly what is involved with converting the internal PETSc matrix format to something that BoomerAMG can use. On the other hand, I don't have much experience with GAMG either so it might not be suitable for your problem without the proper command line args. -- John ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
