Re: [Libmesh-devel] support for VTK HEX27

2010-09-07 Thread John Peterson
Hi Ping, I'd be happy to take a look at your patch. Would you mind sending me the diffs in the 'svn diff' format? If you have an SVN checked-out copy of the source tree, just run 'svn diff', if not just send me your vtk_io.C file directly and I'll take a look. Thanks, John On Tue, Sep 7, 201

[Libmesh-devel] support for VTK HEX27

2010-09-07 Thread Ping Rong
Hello all, I have been recently trying to write my meshes into *.vtu files. In most cases it works pretty well, except the HEX27 elements. So I made a few modifications in the source code, and made it work. I guess maybe I just post it here, maybe someone can update it to the subversion, if no

[Libmesh-devel] matrix free in Trillinos nonlinear solver

2010-09-07 Thread Ming Q
Hi Libmesh developers, Is there any reasons to use the only matrix free method in the libmesh+NOX solver? Will it converge better if I specify the jacobian matrix explicitly as in Petsc? The function Problem_Interface::computeJacobian is the one I should modify, right? Thanks for your helps, /