Re: [Libmesh-users] Read/write solution vectors

Paper comes out after code. :) On Tue, Nov 7, 2017 at 1:43 PM, Manav Bhatia wrote: > Very cool! > > Is there a paper you can point me to that discusses the foundations? > > -Manav > > > On Nov 7, 2017, at 12:37 PM, Paul T. Bauman wrote: > > > > On Tue, Nov 7, 2017 at 1:33 PM, Manav Bhatia > wr

Re: [Libmesh-users] Read/write solution vectors

Very cool! Is there a paper you can point me to that discusses the foundations? -Manav > On Nov 7, 2017, at 12:37 PM, Paul T. Bauman wrote: > > > > On Tue, Nov 7, 2017 at 1:33 PM, Manav Bhatia > wrote: > Aha! Thanks for sharing this information. > > Are th

Re: [Libmesh-users] Read/write solution vectors

On Tue, Nov 7, 2017 at 1:33 PM, Manav Bhatia wrote: > Aha! Thanks for sharing this information. > > Are there any restrictions placed on the mesh type for this? > Structured/Unstructured? > Totally unstructured. (libMesh doesn't have any true structured representation after all. :) ) > What a

Re: [Libmesh-users] Read/write solution vectors

Aha! Thanks for sharing this information. Are there any restrictions placed on the mesh type for this? Structured/Unstructured? What about distribution of dofs? Like subdomain variables, etc. -Manav > On Nov 7, 2017, at 12:11 PM, Paul T. Bauman wrote: > > On Tue, Nov 7, 2017 at 12:55 PM,

Re: [Libmesh-users] Read/write solution vectors

On Tue, Nov 7, 2017 at 12:55 PM, Manav Bhatia wrote: > > This is unrelated: is there any activity concerning multigrid > preconditioners within libMesh? I can certainly use Algebraic MG from > PETSC, but what about geometric MG? > Yes, we have a project going on this. We're debugging the pre-al

Re: [Libmesh-users] Read/write solution vectors

Thanks! I did not know about the meshplot utility. I will consider migrating to XDR. This is unrelated: is there any activity concerning multigrid preconditioners within libMesh? I can certainly use Algebraic MG from PETSC, but what about geometric MG? -Manav > On Nov 7, 2017, at 11:52 A

Re: [Libmesh-users] Read/write solution vectors

On Tue, 7 Nov 2017, Manav Bhatia wrote: What is the guidance on using element vs nodal solution functions? Most of my computations use C0 Lagrange basis. These would be nodal? Right. I sometimes also use high order Szabab. Would these also be nodal? IIRC, yes. I'm pretty sure they won't

Re: [Libmesh-users] Read/write solution vectors

What is the guidance on using element vs nodal solution functions? Most of my computations use C0 Lagrange basis. These would be nodal? I sometimes also use high order Szabab. Would these also be nodal? Would any L2 function space be elemental? Sent from my iPhone > On Nov 6, 2017, at 11:05

Re: [Libmesh-users] Read/write solution vectors

On Mon, 6 Nov 2017, Manav Bhatia wrote: I see that this is all done using XDR. Is there a particular reason to prefer XDR as opposed to .exo? Support for adaptive refinement hierarchies (IIRC we still have to "flatten" a mesh to output Exodus), higher p (I believe Exodus only supports up to s

Re: [Libmesh-users] Read/write solution vectors

Thanks! I see that this is all done using XDR. Is there a particular reason to prefer XDR as opposed to .exo? I understand that libMesh provides extensive API for this. Can XDR be used for data visualization? Do you know if someone has implemented a read function from .exo files? Given tha

Re: [Libmesh-users] Read/write solution vectors

Regarding this: > I seem to remember the Reduced Basis code doing something tricky... > looks like it's using System::read_serialized_data() directly? > Yes, that's right. See RBEvaluation::read_in_vectors and RBEvaluation::write_out_vectors. David --

Re: [Libmesh-users] Read/write solution vectors

On Sat, 4 Nov 2017, Manav Bhatia wrote: I have been writing my transient data to exodusII files and using them in Paraview for visualization using ExodusII_IO::write_time_step() Is there a utility available to read previously written solution (to exodusII file) into memory into a System

[Libmesh-users] Read/write solution vectors

Hi, I have been writing my transient data to exodusII files and using them in Paraview for visualization using ExodusII_IO::write_time_step() Is there a utility available to read previously written solution (to exodusII file) into memory into a System vector? If not, is there one av