[deal.II] Re: Eigenproblem and creating a preconditioner out of a linear operator, Eigensolver Selection

Hi Andreas, On Thursday, July 4, 2019 at 7:41:31 PM UTC+2, Andreas Hegendörfer wrote: > > Hello, > > 2. Are there better ways to solve this Eigenproblem, maybe with another > solver? > > Have you tried an spectral transformation? I'm not familiar with Arpack, I use SLEPc. I think that you could

Re: [deal.II] Output subset of cells

Alexander, have a look at https://www.dealii.org/developer/doxygen/deal.II/classDataOut.html#afdefbb966f2053f4c4fc52293d2339ce . You just need to overload DataOut::next_cell(). Best, Daniel Am Fr., 5. Juli 2019 um 10:34 Uhr schrieb Alexander : > I am starting to hit a space/memory boundary sinc

[deal.II] Output subset of cells

I am starting to hit a space/memory boundary since my VTU output becomes > 100 GB. Partial mitigation to this would be to output (DataOut) only some cells in VTU, which are of interest. In my applications, I can easily ignore at least half of cells. Is there a possibility to do that within the

[deal.II] Re: 20 tests failed after make install

Zhenbang Wei, Is it possible that Trilinos was compiled without MPI support? The two error you see come from Trilinos functions that uses MPI. Best, Bruno On Thursday, July 4, 2019 at 10:15:51 AM UTC-4, Zb W wrote: > > Hello, > I want to install deal.ii (9.1.1) in the ubuntu 18.04 on Windows 1

[deal.II] Re: Problem installing DEALII 9.0.0 in CentOS cluster

Hi, Can you post the errors that you see on your screen. Best, Bruno On Thursday, July 4, 2019 at 3:26:18 AM UTC-4, m boron wrote: > > Dear all, > I have installed dealii9.0.0 in my PC and it is working fine. But now, I > want to install it in a cluster with CentOS. > I have installed > gcc