medium diffusion equation
(https://en.wikipedia.org/wiki/Porous_medium_equation) and will be happy to
share the code if I succeed.
Thank you very much for your understanding and best regards,
Nik
On Tuesday, August 5, 2025 at 4:18:13 AM UTC-7 Nik Markus Leuenberger wrote:
> Dear all,
>
>
Dear all,
I have a question regarding an *extension* of step.74.
Eventually, I would like to solve a non-linear Poisson equation using DG
elements. I would also like to use automatic differentiation to obtain the
Jacobian from the Residual as in step-72.
To start, I wanted to solve the linea
Dear Bruno,
Thank you very much for your reply and apologies for my late reply. I think
that was exactly the issue.
After upgrading to open-mpi 5.0.7, the problem seems to be gone.
Thanks again and best regards,
Nik
On Thursday, February 6, 2025 at 6:37:59 AM UTC-8 bruno.t...@gmail.com
wrote:
Dear all,
Thanks to your help earlier, I was able to compile my program on the Mac
ARM-machine using clang. However, when I execute the program from the
command line using ./program, I get the following kind of strange error:
[] shmem: mmap: an error occurred while determining whether or not
Dear Daniel,
Thank you very much for your answer. I was indeed able to find a more
detailed report of what was going wrong during the deal.ii test for MueLu
by searching exactly as you mentioned.
Thank you and best regards,
Nik
On Wednesday, January 8, 2025 at 7:26:00 PM UTC+1 d.arnd...@gmail.c
Dear James,
Thank you very much for your very kind and detailed reply.
Using your recommendations, I managed to install Trilinos + MueLu working
with deal.ii master. Thank you very much for your help with this!
The only thing I had to change from the default recipe here
https://github.com/deal
Dear User Group,
I recently got a new Apple arm-based M4 laptop running Mac OS Sequoia. My
previous laptop was running Windows and using the Windows Subsystem for
Linux, I managed to install deal.ii together with all the packages I would
like to use.
Now, I tried to install deal.II on the new
Dear Alexander and Vinayak,
I also used spack for the installation and for me, something similar (the
same?) happend.
Running simply cmake . gives the following error.
*$ cmake .*
-- Check for working CXX compiler: /home/~/spack/lib/spack/env/gcc/g++ -
broken
CMake Error at
/usr/local/share/c
Quick update on the post above after some more reading of the documentation
- I apologize that I didnt't wait with the post until I had fully read into
these things.
On Thursday, September 5, 2024 at 11:43:18 PM UTC+2 Nik Markus Leuenberger
wrote:
Dear all,
It has been a very nice exper
Dear all,
It has been a very nice experience over the summer beginning to learn
deal.ii and *mis*using it for my finite volume calculations.
In the meantime, I have a distributed code for the sparse matrix assembly
using MPI.
So the next challenge :) is to have an efficient/scalable way of sol
k
Best,
Jean-Paul
On Tue, 9 Jul 2024 at 05:17, Wolfgang Bangerth
wrote:
On 7/8/24 08:51, Nik Markus Leuenberger wrote:
>
> I'm opening a new thread because the question is no longer whether or how
to
> use deal.ii for DG/finite volume implementations, but what I hope is a
mor
Dear all,
I'm opening a new thread because the question is no longer whether or how
to use deal.ii for DG/finite volume implementations, but what I hope is a
more specific question regarding a combination of step-74 and step-72.
I want to use automatic differentiation to obtain the Jacobian for
Dear Prof. Bangerth, Dear Abbas,
Thank you very much again for your fast responses and apologies for my late
reply. Further below are some small comments on your answers.
However, rather than trying to make the DG version work in 1D and using
0-order elements, I think I would like to proceed as
Dear Abbas, Dear Prof. Bangerth,
Thank you very much for your fast replies to my post. I'm sorry for not
having found step-74 myself before.
step-74 is I think indeed what I am looking for: However, when I played
around with step-74, I ran into the following two issues:
(1) trying to
Dear all,
I'm new to deal.ii and I would like to use it to gradually build a
simulator for charge/mass transport inside batteries.
Since the equations I'm trying to solve are conservations laws, I would
like to use a finite volume type of implementation. I know that deal.ii is
a finite element
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