Hello again,
Thank you so much for your help. Yes, you're totally right. The lethe code
is accessible :)
On Friday, 15 September 2023 at 15:04:19 UTC+3:30 blais...@gmail.com wrote:
> Dear Hadi,
> The Lethe code to generate all of these cylinders is fully available only.
> Might as well just
Timo,
You will get vastly different results in debug and release modes for two
reasons. First, the compiler generates much faster code in release mode
compared to debug. Second, there are a lot of checks inside deal.II that
are only enabled in debug mode. This is great when you develop your
hi, Marc,
Thank you for the reply.
I compiled the lib with debug mode, didn't try the optimized version.
I didn't think this could be a significant issue, but I infer optimized lib
could improve performance alot based on your question.
Sincerely,
Timo
On Fri, Sep 15, 2023 at 8:21 PM Marc
Hello Tim,
> A simple timing tells me the assembly process of system-matrix takes 99%
of the whole running time in every newton iteration.
Just to make sure: did you compile the deal.II library and your code in
Optimized
mode/Release mode
Hello Tim,
> Yet, even though it is universally believed to be superior in terms of
convergence properties, it is not widely used because it is often believed
to be difficult to implement. One way to address this belief is to provide
well-tested, easy to use software that provides this kind of
Hello everyone!
This is deal.II newsletter #267.
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:
#15990: Simplify some code. (proposed by bangerth; merged)
Hi, Wolfgang,
Thank you for your reply and suggestion.
Your're right, I didn't conduct profiling yet. My commonly used test setup
is 1 node (128 cores) with 128 tasks on it, 99% of assembly time came from
this type of run.
It's a bit surprising for me to be suggested not to use thread, but I
On 9/15/23 03:17, timo Hyvärinen wrote:
So here is my question, which tutorial steps demonstrate how to implement the
mpi-thread hybrid parallelism. I've found step-48 is talking about this, but
I wonder are there any other tutorial programs to look at? I also wonder if
any of you guys have
Dear Hadi,
The Lethe code to generate all of these cylinders is fully available only.
Might as well just reuse it :)
Everything starts here:
https://github.com/lethe-cfd/lethe/blob/master/source/core/grids.cc#L162
This should help you reproduce these kind of grids
On Thursday, September 14,
Dear dealii community and developers,
I have used dealii framework (9.3.x) a while on HPC machine. My project
involves solving vector-valued nonlinear PDE with nine components.
Currently, I've implemented damping newton iteration with GMRES+AMG
preconditioner with MPI on distributed memory
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