Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
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Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Status: Needs information => Open
Luis Barbosa gave more information on the question:
There is no overlapping.
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Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Status: Open => Needs information
Bruno Chareyre requested more information:
Oh... but I thought the question was about "large number of particles".
Now it's about "packs".
what do these packs look like?
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Luis Barbosa gave more information on the question:
Here is how I am running:
+ singularity run
/beegfs/common/singularity/yade/yade_debian_bookwarm_1.0.sif yadedaily
-j80 drain_importMatrixTriax7_10_c3.py
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Status: Answered => Open
Luis Barbosa is still having a problem:
For this I have to provide txt files for the creation of the packs.
Sorry for the external links:
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Bruno Chareyre requested more information:
> Yes
Your question states the opposite it seems...
Can you be more specific on which number of particles gives the problem and
provide a script showing the problem?
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Luis Barbosa posted a new comment:
>>So you have crashes without MPI and without aggregates when using many
>>particles?
Yes.
I also tried without singularity using Yade 2022124 -6294 bionic and got
the same
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Bruno Chareyre requested more information:
Indeed. It's a glibc error [1] even if it sounds mechanical ("consolidation").
So you have crashes without MPI and without aggregates when using many
particles?
B
[1]
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Status: Open => Answered
Bret Ritchie proposed the following answer:
That vitalizes the amazing bone! Here clearly accepting I endeavor an article I
can pull off a couple of additional spaces!
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Status: Answered => Open
Luis Barbosa is still having a problem:
Maybe this is not from the source code itself. But, somenthing in the
python script allocating memory.
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Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Luis Barbosa posted a new comment:
Hi,
The main topic is the use of TwoPhaseFlowEngine with large number of
particles.
I am runnig singularity:
Yade 2021.01a
python version: 3.9.7 (default, Sep 24 2021,
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Status: Open => Answered
Bruno Chareyre proposed the following answer:
> still it works for lower number of particles
You mean it doesn't crash, right? Even so, I don't see it giving
consistent results.
>
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Status: Answered => Open
Luis Barbosa is still having a problem:
Thanks Bruno.
This may just play a bad MPI efficiency, but still it works for lower
number of particles.
But anyway, I ran this example
Question #700611 on Yade changed:
https://answers.launchpad.net/yade/+question/700611
Status: Open => Answered
Bruno Chareyre proposed the following answer:
Hi,
This has 0% chances to work.
MPI uses a domain decomposition with one yade instance running each subdomain.
What happens in your
New question #700611 on Yade:
https://answers.launchpad.net/yade/+question/700611
Hi all,
I am running the script [1] in OpenMpi with increased domain and smaller
particles.
[1]
https://gitlab.com/yade-dev/trunk/-/blob/master/examples/FluidCouplingPFV/drainage-2PFV-Yuan_and_Chareyre_2017.py
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