[deal.II] Re: Extract boundary DoFs using DoFTools::extract_boundary_dofs() and Indexset for parallel distributed triangulation

Dear Daniel Thank you. You really help me. Best, Pasha On Friday, July 1, 2016 at 5:21:08 PM UTC+4:30, Daniel Arndt wrote: > > Pasha, > > First of all: The sum of values in the right-hand side vector only > corresponds to a sum of values of the represented right-hand side function, > if you

[deal.II] Re: Question about Dealii

Hamed, Have a look at how temporary non-ghosted vectors are used in step-40. Similar to VectorTools::interpolate the solution vector in SolverCG::solve must not be ghosted. Best, Daniel Am 07/01/2016 um 01:15 AM schrieb Hamed Babaei: > Hi Daniel, > > I hope you are doing well. > I got an error

[deal.II] Re: Extract boundary DoFs using DoFTools::extract_boundary_dofs() and Indexset for parallel distributed triangulation

Pasha, First of all: The sum of values in the right-hand side vector only corresponds to a sum of values of the represented right-hand side function, if you use interpolating Finite Elements (such as FE_Q). Furthermore, you have to be sure that you are really interested in the values and not

[deal.II] grouping Planner and Line elements in dealii

Dear users, I am trying to implement my finite element model in dealii. the weak form of my problem is where as

[deal.II] Re: Extract boundary DoFs using DoFTools::extract_boundary_dofs() and Indexset for parallel distributed triangulation

Please, ignore that this method will apply a value correspond to a common node between two adjacent element twice. I will correct that. I just want to be sure what I am calculating is correct or not. On Friday, July 1, 2016 at 12:05:24 PM UTC+4:30, dealii...@gmail.com wrote: > > Dear Daniel >

[deal.II] Re: Extract boundary DoFs using DoFTools::extract_boundary_dofs() and Indexset for parallel distributed triangulation

Dear Daniel My name is Pasha. Thank you for your response. I want to extract sum of values from system RHS ( which is a dealii:TrilinosWrappers::MPI::BlockVector) correspond to all degrees of freedom which are at the boundary. I am working with a parallel::distributed::Triangulation. I