Re: [deal.II] some question about the move mesh function

2019-10-07 Thread huyanzhuo
thanks for your reply! i got the problem solved. my fault is the misuse of communicate_locally_moved_vertices function. i got the "shallow hole" because i move the mesh when the mesh is deformed , the mpi processor does't know the right place of ghost layer cell. i solve the problem by correct

Re: [deal.II] Implementing variable thermal diffusivity in Step-26

2019-10-07 Thread Daniel Arndt
Muhammad, Dear Colleagues, >I am working on thermal analysis where deal.ii > Step-26 is being considered. In my case the thermal diffusivity > (Coefficient being multiplied with Laplace Matrix) is temperature dependent > and hence varying in every cell (or node). That i

[deal.II] Re: error during installation with spack on CentOS7

2019-10-07 Thread Alberto Salvadori
For further information, hoping this can be of use, it turned out that the very same error in slepc installation occurs with gcc@7.4.0 . This strikes me a bit, because I did install deal.ii with such a compiler on a ubuntu machine, rather than CentOS7, via spack. The issue was reported on Spack

[deal.II] deal.II Newsletter #96

2019-10-07 Thread Rene Gassmoeller
Hello everyone! This is deal.II newsletter #96. It automatically reports recently merged features and discussions about the deal.II finite element library. ## Below you find a list of recently proposed or merged features: #8892: Replace std::bind in documentation (proposed by masterleinad) ht

Re: [deal.II] Arpack solver reports 4294967295 iterations before converging

2019-10-07 Thread Wolfgang Bangerth
On 10/7/19 5:32 AM, 'Maxi Miller' via deal.II User Group wrote: > I implemented the changes in step-36 suggested in the tutorial for using > ARPACK instead of PETSc (as shown in the attachment). Now, the solver reports > a convergence in 4294967295 iterations (with correct result), thus I assume

[deal.II] Arpack solver reports 4294967295 iterations before converging

2019-10-07 Thread 'Maxi Miller' via deal.II User Group
I implemented the changes in step-36 suggested in the tutorial for using ARPACK instead of PETSc (as shown in the attachment). Now, the solver reports a convergence in 4294967295 iterations (with correct result), thus I assume a overflow/underflow bug. Is that something which I should report in