On Thu, Mar 10, 2016 at 9:49 AM, John Peterson <[email protected]> wrote:
> > > On Thu, Mar 10, 2016 at 9:33 AM, Adriano Côrtes <[email protected]> > wrote: > >> Dear developers, >> >> I am trying to understand the FEMSystem framework, and the first thing I >> did was to run the example 1, but the output I'm obtaining from the >> default >> run (using make and run.sh) is completely different from the one in >> http://libmesh.github.io/examples/fem_system_ex1.html >> >> Bellow is my output >> >> > <snip> > > >> >> >> *I have several questions:* >> >> *1. Why only the timestep 0 printed the line bellow?* >> >> Nonlinear step: |du|/|u| = 0.99946, |du| = 194.712 >> >> *2. Why the number of linear iterations is so different from the libmesh >> page and my run? Also the finite elements types? * >> >> Libmesh page: >> >> Finite Element Types="LAGRANGE", "JACOBI_20_00" "LAGRANGE", >> "JACOBI_20_00" >> Infinite Element Mapping="CARTESIAN" "CARTESIAN" >> Approximation Orders="SECOND", "THIRD" "FIRST", "THIRD" >> >> *3. Where in Libmesh the PETSc class SNES is used? Or better asking does >> FEMSystem communicates in the solver level with SNES, or is only in the >> KSP >> level?* >> > > I'll let Roy comment in more detail about whether fem_system_ex1 has > regressed, but the differences you are seeing between today's output and > the web page documentation is likely due to the fact that my last couple of > Doxygen updates have not also updated the examples documentation pages > (which apparently date back to Oct 22, 2014!). I'll add an issue to help > remind me to look at this. > https://github.com/libMesh/libmesh/issues/863 -- John ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785111&iu=/4140 _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
