deal.II User Group

Hi there, and welcome to the deal.II user group forum! Presumably you've found yourself here from

Dear deal.II users, During the user group meeting held in Texas at the beginning of August we asked

Hello, Which type of vector are you using? If you use `dealii::LinearAlgebra::Distributed::vector`,

An additional information is that with configurations above, code can be compiled and run but if I

Hello everyone! This is deal.II newsletter #331. It automatically reports recently merged features

Hello Leo, I think you are right, the global_active_cell_index() depends on the partitioning of the

Dear Professor Bangerth: Thank you for the suggestions and for pointing me to Rob Kirby's work

Here is a minimal self contained example that produces the error. On Thu, Sep 18, 2025 at 8:16 AM

I believe MGTransferGlobalCoarsening does not work with hp::FECollection. I use hp::FECollection for

All: as a follow-up to the 9.7 release announcement: To every deal.II release, many many people

Dear all, I am encountering an issue with HDF5/XDMF output using DataOut::write_hdf5_parallel() on

On 9/15/25 05:33, Praveen C wrote: > The violated condition was: fe.is_primitive(i) >

Luca, I believe that you might be missing something. In the reinit function you have two quadratures:

Hello everyone! This is deal.II newsletter #330. It automatically reports recently merged features

On 9/10/25 03:41, Simon wrote: > > To answer your question, using this "self"

Long story short: We lack the manpower and motivation to support cygwin and mingw. You can simply

Hello everyone! This is deal.II newsletter #329. It automatically reports recently merged features

Dear Tao, I personally think this would be a perfect fit for our code gallery! Thanks for sharing. L.

Dear Bruno, Thanks a lot for your paper. Best regards. Yunfei blais...@gmail.com <blais.bruno@

I think you will be fine if you proceed like you are doing right now. It does not take much time, but

On 8/27/25 02:55, Dmitriy Samosvat wrote: > > I am trying to solve the 30-band kp model for a

I am green with envy. I never had this kind of my opportunity on completing my MSc. Deadline: July 18

Hello everyone! This is deal.II newsletter #328. It automatically reports recently merged features

Hello Bruno and David, Thank you for the quick reply and the quick fix! I'll give it a try.

Hi Nathaniel While you have seemingly found an answer, I wanted to add that an alternative strategy

Could an alternartive be to read it as a serial triangulation and then to partition it as a

Hey, Bringing this issue up again since I have the same issue when I try to install deal.II 9.7.0

Dear Mr. Heltai, Thanks a lot. it works now. Best regards, Yunfei Luca Heltai <luca.heltai@gmail.

Thanks, this solves the problem. On Tue, Aug 5, 2025 at 7:07 PM Timo Heister <timo.heister@gmail.

Thank you for your help Timo, that worked well. Best wishes, Tom On Wednesday, July 23, 2025 at 3:40:

It's generally best to make sure that mpicc, mpic++, mpirun are in PATH and then enable MPI via -

On 8/6/25 05:50, Nik Markus Leuenberger wrote: > > I am currently trying to use this to