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OpenMpi error while running OpenFOAM in parallel |
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November 8, 2022, 05:32 |
OpenMpi error while running OpenFOAM in parallel
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#1 | |
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Arumugaraj
Join Date: Feb 2020
Posts: 2
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My processor consists of 24 cores and 48 threads and I am able to run OpenFOAM simulation in parallel using the command
Code:
mpirun -np 24 icoFoam -parallel Quote:
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October 30, 2023, 09:25 |
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#2 |
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miaozeya
Join Date: Oct 2023
Posts: 1
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I’m a student in China,and May I ask how you resolved it later~
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November 24, 2023, 06:39 |
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#3 |
New Member
Ilia Khristoforov
Join Date: Oct 2023
Posts: 3
Rep Power: 3 |
Hello! First of all, You should specify number of regions in DecomposeParDict according to the number of cores you want to use (I am sure you did this, but still it's important to note).
Also, I am trying to make a parallel simulation myself right now and I have found this presentation. From it, it looks like OpenFOAM package does not support hyperthreading and you should specify only the number of physical cores (which is 24 in your case as it seems). Hope it helps! However, if anyone knows better, I would be glad to know too |
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Tags |
mpi error, mpirun error, openfoam 2112, openmpi, parallel computation |
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