Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-15 Thread John Peterson
On Tue, Sep 15, 2015 at 9:28 AM, Roy Stogner wrote: > > On Tue, 15 Sep 2015, John Peterson wrote: > > We should probably try to prevent this type of configuration from getting >> run by throwing an error if the Eigen sparse solvers are invoked when >> n_processors() > 1. >> >> @roystgnr any prefe

Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-15 Thread Antonio Cervone
yes, I just wanted to point out that there are two problems here: eigen does not work in parallel and vtk does not work in parallel, too. On Tue, 15 Sep 2015 at 17:16 John Peterson wrote: > On Tue, Sep 15, 2015 at 9:11 AM, Antonio Cervone > wrote: > >> you should also be aware that the VTKIO cl

Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-15 Thread Roy Stogner
On Tue, 15 Sep 2015, John Peterson wrote: > We should probably try to prevent this type of configuration from getting > run by throwing an error if the Eigen sparse solvers are invoked when > n_processors() > 1. > > @roystgnr any preferences for how to do this? How are we not already throwing an

Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-15 Thread John Peterson
On Tue, Sep 15, 2015 at 9:11 AM, Antonio Cervone wrote: > you should also be aware that the VTKIO class does not work in parallel. > I had similar issues in the past, if I remember correctly this is related > to the serialization of the solution before printing. > your simulation could be ok, but

Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-15 Thread Antonio Cervone
you should also be aware that the VTKIO class does not work in parallel. I had similar issues in the past, if I remember correctly this is related to the serialization of the solution before printing. your simulation could be ok, but what is printed out is not, you should try switching to exodus.

Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-15 Thread John Peterson
On Tue, Sep 15, 2015 at 3:55 AM, Stephan Herb < inf74...@stud.uni-stuttgart.de> wrote: > Thanks Julian for addressing this problem; although I changed it to the > correct version nothing changed (well, now only the displacements for > the local nodes gets printed instead of all nodes^^). > I came

Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-15 Thread Julian Andrej
systems_of_equations_ex4 % mpirun -np 2 ./example-opt works flawlessly. My configuration is using PETSc and i highly recommend you install PETSc and reconfigure/recompile your libmesh installation. On Tue, Sep 15, 2015 at 11:55 AM, Stephan Herb wrote: > Thanks Julian for addressing this problem;

Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-15 Thread Stephan Herb
Thanks Julian for addressing this problem; although I changed it to the correct version nothing changed (well, now only the displacements for the local nodes gets printed instead of all nodes^^). I came up with another issue: If you run the example code 4 of "Systems of Equations" (Linear Elastic C

Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-15 Thread Stephan Herb
Hi, my code is the main part of my Master Thesis, so I need to talk with my professor about sharing it with the libmesh community. I uploaded my config.log here (http://pastebin.com/X3whQhLs) so you can check it. As far as I know I don't have PETSc installed/configured yet but there should be no p

Re: [Libmesh-users] Parallel solve system on partitioned mesh

2015-09-14 Thread John Peterson
On Mon, Sep 14, 2015 at 3:46 AM, Stephan Herb < inf74...@stud.uni-stuttgart.de> wrote: > Hello, > > I wrote a code to compute displacements and drilling moments for flat > shell elements with FEM. It imports a mesh file (xda or msh), assembles > the system matrix and RHS, solves the system and exp