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

[Manav B. <bha...@gm...>]

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 AM, Roy Stogner <roy...@ic...> wrote:
> 
> 
> 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 be restartable from an Exodus
> save file, though.
> 
>> Would any L2 function space be elemental?
> 
> Well, any H1 function space is also in L2.  But the discontinuous
> function spaces are all elemental.  I'm not sure you can get more than
> piecewise constants out to Exodus and back in again safely, though.
> ---
> Roy