On Oct 21, 2009, at 11:29 AM, Lorenzo Botti wrote: > Thanks for the hints. > Just a question... It seems that you prefer the Nemesis format > compared to the native xdr xda, is there any reason for that?
The reason is that Nemesis is a format that other things read / write... where xdr/a is only for libMesh. Cubit can generate Exodus meshes (which can be split into Nemesis meshes).... and Paraview can directly read the decomposed Nemesis solution files. Further you can use tools to "stitch" back together the Nemesis solution files into an Exodus file for reading by a wider range of visualization software. > I don't know if I will have time to do it in the near future because > the end of my PhD is approaching very fast. > Anyway I think that parallel IO for mesh and solution is crucial to > run parallel (>100 processes) computations, and of course ghosted > vector is crucial too (thanks Tim). Completely depends on your problem. We regularly run 1000+ processor runs with serial mesh. These runs have millions of degrees of freedom... but we get there by having MANY variables that we're solving for (or using things like 3rd order Hermites in 3D)... not by having a huge mesh. So the mesh itself doesn't take up much RAM and it's not a big deal (ghosted vectors DO help quite a bit in this situation though). Derek ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
