Hi John, This is the first time I see this. So I’m not sure what this .cpr format is? Can each processor read its own chunk using with mesh.read when libMesh is compiled with parallel mesh?
Thanks, Ata > On Jan 11, 2017, at 3:32 PM, John Peterson <[email protected]> wrote: > > > > On Wed, Jan 11, 2017 at 1:29 PM, gmail <[email protected] > <mailto:[email protected]>> wrote: > Hi all, > > I am working with a relatively large 3D exodusII meshes 15-50 M elements that > I create using Trelis (CUBIT). Right now I have crude procedure to > pre-partition this mesh on a machine with a large memory basically by reading > it in a small libMesh program and then writing it out as a nemesis series. > This is not ideal and I would like to find a way to pre-partition this mesh > on my office machine (or a small cluster) for any number of CPUs. > I searched through the mailing list and have found this thread: > https://sourceforge.net/p/libmesh/mailman/message/30919725/ > <https://sourceforge.net/p/libmesh/mailman/message/30919725/> > <https://sourceforge.net/p/libmesh/mailman/message/30919725/ > <https://sourceforge.net/p/libmesh/mailman/message/30919725/>> that suggests > use of SEACAS or using meshtools to save the mesh into an XDR format. I had > little success with the first method since the documentation for SEACAS are > incomplete. I managed to create a partition using nem_slice but could not > make nem_spread work (probably not doing the inp file correctly). > > I would like to ask the developers as well as the members of mailing list to > comment and share their procedure dealing with large meshes. > > Have you had a chance to try the src/apps/splitter.C code. It was recently > added by Derek to do exactly what you are asking about. > > -- > John ------------------------------------------------------------------------------ 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
