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March 26, 2020, 11:05 |
Motobike benchmark case
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#1 |
Senior Member
Josh McCraney
Join Date: Jun 2018
Posts: 220
Rep Power: 8 |
Hi FOAMers!
I am working on Ubuntu 18.04 OF6, and am trying to run the motobike benchmark case, which can be downloaded here. When I run, the output log.snappyHexMesh reads Code:
Create time Create mesh for time = 0 Read mesh in = 0.01 s [0] [0] [0] --> FOAM FATAL IO ERROR: [0] Cannot open etc file "caseDicts/meshQualityDict" while reading dictionary "/home/josh/Downloads/bench_template/run_16/system/snappyHexMeshDict.meshQualityControls" [0] [0] file: /home/josh/Downloads/bench_template/run_16/system/meshQualityDict at line 18. [0] [0] From function static bool Foam::functionEntries::includeEtcEntry::execute(Foam::dictionary&, Foam::Istream&) [0] in file db/dictionary/functionEntries/includeEtcEntry/includeEtcEntry.C at line 127. [0] FOAM parallel run exiting [0] -------------------------------------------------------------------------- MPI_ABORT was invoked on rank 0 in communicator MPI COMMUNICATOR 3 SPLIT FROM 0 with errorcode 1. NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes. You may or may not see output from other processes, depending on exactly when Open MPI kills them. -------------------------------------------------------------------------- Any idea how to get the benchmark to run? I really need to check the benchmark for my machine, so any help is so so so appreciated! Also, the motobike tutorial works if I go into tutorials and run ./Allrun. |
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March 26, 2020, 12:33 |
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#2 |
Member
Join Date: Sep 2018
Location: France
Posts: 62
Rep Power: 7 |
Hi,
You can also copy directly the content of the meshQualityDict in your snappyHexMeshDict like : Code:
meshQualityControls { maxNonOrtho 65; maxBoundarySkewness 20; maxInternalSkewness 4; maxConcave 80; minVol 1e-13; minTetQuality 1e-15; minArea -1; minTwist 0.02; minDeterminant 0.001; minFaceWeight 0.02; // Corrected to 0.02 for the motorBike tutorial minVolRatio 0.01; minTriangleTwist -1; nSmoothScale 4; errorReduction 0.75; } |
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March 26, 2020, 13:00 |
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#3 | |
Senior Member
Josh McCraney
Join Date: Jun 2018
Posts: 220
Rep Power: 8 |
Quote:
Last question: I'm kind of new to OpenFOAM: are these results for the 2 million cell count like the benchmark? I don't want to give bad information, you know? |
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March 26, 2020, 13:26 |
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#4 |
Member
Join Date: Sep 2018
Location: France
Posts: 62
Rep Power: 7 |
Well for the motorBike tutorial I think you cannot use it as a benchmark since I do not know if there is actually "reliable" data for it (drag, downforce, ...).
I suppose (but maybe I am wrong) that it is just an example of a case setup for the solver and helps you to understand how it works. I think it is better to analyse for instance an airfoil where you are sure to find proper data. |
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March 26, 2020, 14:23 |
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#5 | |
Senior Member
Josh McCraney
Join Date: Jun 2018
Posts: 220
Rep Power: 8 |
Quote:
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March 26, 2020, 16:24 |
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#6 |
Member
Join Date: Sep 2018
Location: France
Posts: 62
Rep Power: 7 |
My bad ! I have just found this thread so I think you can do it.
OpenFOAM benchmarks on various hardware |
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March 26, 2020, 16:28 |
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#7 | |
Senior Member
Josh McCraney
Join Date: Jun 2018
Posts: 220
Rep Power: 8 |
Quote:
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