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  • #2434
Closed
Open
Created Apr 02, 2022 by Tamas Egeresi@Tamas

Issue when Executing Simulation in Parallel

Summary

Recently I updated my system to Ubuntu 21.10. Then I installed the pre-compiled OpenFOAM v2112 based on the information on the webpage. When I started any case from the tutorials in parallel mode, it diverged rapidly. I've attached the log.simpleFoam from the motorBike case.

In order to overcome of this problem, I changed maxThreadFileBufferSize from 0 to 1e9 in the global controlDict. The motorBike case went smoothly after this.

However, the more complex solvers such as compressibleInterDyMFoam in the sphereDrop setup or the DTCHullMoving setup diverged immediately no matter how I set maxThreadFileBufferSize. I also attached those 2 log files (log.compressibleInterDyMFoam and log.interFoam).

To reproduce this behavior, use Ubuntu 21.10 with motorBike or sphereDrop tutorial. You can check that maxThreadFileBufferSize is set to 0 in $FOAM_ETC/controlDict initially.

Relevant logs and/or images

log.simpleFoam log.compressibleInterDyMFoam log.interFoam

Environment information

OpenFOAM version : v2112 Operating system : ubuntu 21.10 Hardware info : Intel(R) Core(TM) i9-10900 CPU @ 2.80GHz Compiler : gcc

  • OpenFOAM version : v2112
  • Operating system : ubuntu 21.10
  • Hardware info : Intel(R) Core(TM) i9-10900 CPU @ 2.80GHz
  • Compiler : gcc

Possible fixes

Partially fixing: I changed maxThreadFileBufferSize from 0 to 1e9 which fixed 1 of the 3 cases.

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