Re: [Libmesh-devel] Questions regarding constrain_element_matrix

2016-09-26 Thread Boris Boutkov
Hello again all, Ive been digging at this problem some more and I have some followup questions / observations. I've noticed that the constraint storage is split up into a number components, and would appreciate some basic info as to what these pieces represent. The assert I am/was tripping was wi

Re: [Libmesh-devel] Questions regarding constrain_element_matrix

2016-08-25 Thread Roy Stogner
On Thu, 25 Aug 2016, Paul T. Bauman wrote: On Thu, Aug 25, 2016 at 5:45 PM, John Peterson wrote: > On Thu, Aug 25, 2016 at 3:38 PM, Boris Boutkov wrote: > > Hm - uniform refinement, yes. Are the boundary nodes on the > > outside edges of refined elements not considered to be hanging > > node

Re: [Libmesh-devel] Questions regarding constrain_element_matrix

2016-08-25 Thread Paul T. Bauman
Crap didn't reply-all. On Thu, Aug 25, 2016 at 5:45 PM, John Peterson wrote: > > > On Thu, Aug 25, 2016 at 3:38 PM, Boris Boutkov > wrote: > >> Hm - uniform refinement, yes. Are the boundary nodes on the outside edges >> of refined elements not considered to be hanging nodes? Apologies if I'm >

Re: [Libmesh-devel] Questions regarding constrain_element_matrix

2016-08-25 Thread John Peterson
On Thu, Aug 25, 2016 at 3:38 PM, Boris Boutkov wrote: > Hm - uniform refinement, yes. Are the boundary nodes on the outside edges > of refined elements not considered to be hanging nodes? Apologies if I'm > misusing the term. > Hanging nodes to me means "must be constrained to be compatible with

Re: [Libmesh-devel] Questions regarding constrain_element_matrix

2016-08-25 Thread Boris Boutkov
Hm - uniform refinement, yes. Are the boundary nodes on the outside edges of refined elements not considered to be hanging nodes? Apologies if I'm misusing the term. On Thu, Aug 25, 2016 at 5:28 PM, John Peterson wrote: > > > On Thu, Aug 25, 2016 at 11:57 AM, Boris Boutkov > wrote: > >> Hello a

Re: [Libmesh-devel] Questions regarding constrain_element_matrix

2016-08-25 Thread John Peterson
On Thu, Aug 25, 2016 at 11:57 AM, Boris Boutkov wrote: > Hello all, (apologies in advance for the double post, looks like I wasn't > subscribed properly earlier), > > Ive been working on some libMesh/GRINS/PETSc Multigrid code and have been > getting some unexpected convergence results that don't