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CyclicAMI BC preservePatches Parallel Run - again!?! |
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#1 |
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Join Date: Jan 2014
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Hi guys,
In my case I am trying to simulate an open couette channel flow with perdiodic BCs: in: cyclicAMI out: cyclicAMI FrontAndBack: slip bottom: no slip top: no slip with fixed Value; decomposingMethod: scotch with preservePatches (in out); I know I have to keep my cyclic patches in one processor, therefore I used preservePatches (in out); in the decomposeDict File. If i decompose in 4 cpus the simulation runs. Checking grep -A4 in processor*/constant/polyMesh/boundary | grep nFacesprocessors results for in: Code:
processor0/constant/polyMesh/boundary- nFaces 0; processor0/constant/polyMesh/boundary- nFaces 0; processor0/constant/polyMesh/boundary- nFaces 5143; processor0/constant/polyMesh/boundary- nFaces 3474; processor0/constant/polyMesh/boundary- nFaces 2150; processor1/constant/polyMesh/boundary- nFaces 2320; processor1/constant/polyMesh/boundary- nFaces 2320; processor1/constant/polyMesh/boundary- nFaces 5143; processor2/constant/polyMesh/boundary- nFaces 0; processor2/constant/polyMesh/boundary- nFaces 0; processor2/constant/polyMesh/boundary- nFaces 3474; processor2/constant/polyMesh/boundary- nFaces 3392; processor3/constant/polyMesh/boundary- nFaces 0; processor3/constant/polyMesh/boundary- nFaces 0; processor3/constant/polyMesh/boundary- nFaces 2150; processor3/constant/polyMesh/boundary- nFaces 3392; Code:
processor0/constant/polyMesh/boundary- nFaces 0; processor1/constant/polyMesh/boundary- nFaces 2320; processor2/constant/polyMesh/boundary- nFaces 0; processor3/constant/polyMesh/boundary- nFaces 0; So far so good, but if I try massive Parllelisation on Cluster with 128 cpus my simulation fails with following error: EVEN with 1 CPU! On my local workstation everything is OK Code:
... Reading/calculating face flux field phi AMI: Creating addressing and weights between 2320 source faces and 2320 target faces --> FOAM Warning : From function AMIInterpolation<SourcePatch, TargetPatch>::checkPatches(const SourcePatch&, const TargetPatch&) in file lnInclude/AMIInterpolation.C at line 111 Source and target patch bounding boxes are not similar source box span : (42.4264 84.8528 10) target box span : (26.0597 76.9991 10) source box : (-42.4264 -42.4264 0) (3.55271e-15 42.4264 10) target box : (-43.7641 -39.1969 0) (-17.7044 37.8022 10) inflated target box : (-47.8592 -43.292 -4.09511) (-13.6093 41.8973 14.0951) [88] [88] [88] --> FOAM FATAL ERROR: [88] Unable to set source and target faces Thanks for help Last edited by hxaxtma; February 3, 2014 at 06:12. |
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#2 |
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I really really need help on this, so any advise would be appreciated
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#3 |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
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Quick answer: I don't have time any time soon to look into this, but I think you can find a lot of valuable information on this thread: http://www.cfd-online.com/Forums/ope...using-ami.html
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#4 | |
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Quote:
Could you please tell how you can use preservePatches in the decomposeParDict File? I looked at the official wiki (http://cfd.direct/openfoam/user-guid...ions-parallel/) but preservePatches doesn't seem to be mentioned. Best regards, Kate |
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#5 | |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
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Quote:
Code:
echo $FOAM_UTILITIES/parallelProcessing/decomposePar/decomposeParDict |
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