Re: [Yade-users] [Question #691644]: BrokenPipeError when use multiprocessing pool in FEM╳DEM

[Launchpad Janitor]

Question #691644 on Yade changed:
https://answers.launchpad.net/yade/+question/691644

Status: Open => Expired

Launchpad Janitor expired the question:
This question was expired because it remained in the 'Open' state
without activity for the last 15 days.

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[Yade-users] [Question #691644]: BrokenPipeError when use multiprocessing pool in FEM╳DEM

[Wang Yu]

New question #691644 on Yade:
https://answers.launchpad.net/yade/+question/691644

Dear all,

In the FEM╳DEM simulation(/examples/FEM╳DEM/triaxialRough.py),  I met  
"BrokenPipeError: [Errno 32] Broken pipe" when use multiprocessing pool in 
python(due to a mass of RVE packings).

My domain of simulation is 3D.  I found that the multiprocessing pool work 
successful when my RVE packing is small enough, but when I use an RVE of more 
than 1000 particles(mean radius=0.005), the error code will appear 
(BrokenPipeError: [Errno 32] Broken pipe)and the simulation would stop.

With my poor understanding of multiprocessing library,  I guess this is 
probably due to too many particles leading to too much data. In addition, I use 
cohesive particle model in RVEpacking.

Could anyone help me with this problem?
Thank you for attention





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