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May 31, 2024, 07:46
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failing to decompose merged meshes
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#1 |
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New Member
Marc
Join Date: May 2024
Posts: 4
Rep Power: 2  |
Hi there,
I am trying to run a case with a mesh that I created by merging 3 meshes. The geometry is mixing tank with two smaller cylinders inside that contain propellers. The mergeMeshes function works as expected and I can view the mesh in Paraview. The two smaller cylinders were meshed separatly before merging them with the bigger mesh. When I try to use the decomposePar -force function it first runs smoothly and then results in a "segmentation fault". What I noticed was that sometimes some processors are are shown multiple times (especially in the second example). I am using the scotch method in the decomposeParDict. CheckMesh noticed 3 different regions in this mesh (not surprising). Does this have something to do with it? If anyone else has experience with this sort of error message and shares their knowledge that would be awesome. Many thanks for reading this. Marcelinus Code:
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 11
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
Build : 11-c219200fdb8b
Exec : decomposePar -force
Date : May 31 2024
Time : 12:13:47
Host : "DESKTOP-1FUU960"
PID : 7680
I/O : uncollated
Case : /mnt/c/Users/m.dieckmann/Documents/OpenFOAM/OF_Hohenheim/mergeMeshes/Flygt_Domain
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time
Removing 6 existing processor directories
Decomposing mesh region0
Create mesh
Calculating distribution of cells
Selecting decomposer scotch
Finished decomposition in 9.015625 s
Calculating original mesh data
Distributing cells to processors
Distributing faces to processors
Distributing points to processors
Constructing processor meshes
Processor 0
Number of cells = 263141
Number of faces shared with processor 1 = 1069
Number of faces shared with processor 3 = 0
Number of faces shared with processor 4 = 851
Number of faces shared with processor 4 = 0
Number of processor patches = 4
Number of processor faces = 1920
Number of boundary faces = 20165
Processor 1
Number of cells = 263665
Number of faces shared with processor 0 = 1069
Number of faces shared with processor 2 = 2282
Number of faces shared with processor 3 = 2308
Number of faces shared with processor 4 = 1473
Number of faces shared with processor 7 = 1848
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 58
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 2998
Number of faces shared with processor 9 = 0
Number of faces shared with processor 12 = 849
Number of faces shared with processor 13 = 2152
Number of faces shared with processor 15 = 967
Number of processor patches = 13
Number of processor faces = 16004
Number of boundary faces = 71958
Processor 2
Number of cells = 264482
Number of faces shared with processor 1 = 2282
Number of faces shared with processor 3 = 3119
Number of faces shared with processor 4 = 2548
Number of faces shared with processor 6 = 2900
Number of faces shared with processor 7 = 1900
Number of faces shared with processor 8 = 534
Number of processor patches = 6
Number of processor faces = 13283
Number of boundary faces = 75682
Processor 3
Number of cells = 264786
Number of faces shared with processor 0 = 0
Number of faces shared with processor 1 = 2308
Number of faces shared with processor 2 = 3119
Number of faces shared with processor 4 = 4631
Number of faces shared with processor 5 = 1294
Number of faces shared with processor 6 = 1048
Number of faces shared with processor 7 = 2
Number of faces shared with processor 8 = 3800
Number of faces shared with processor 9 = 471
Number of processor patches = 9
Number of processor faces = 16673
Number of boundary faces = 55228
Processor 4
Number of cells = 262033
Number of faces shared with processor 0 = 851
Number of faces shared with processor 0 = 0
Number of faces shared with processor 1 = 1473
Number of faces shared with processor 2 = 2548
Number of faces shared with processor 3 = 4631
Number of faces shared with processor 5 = 1953
Number of faces shared with processor 6 = 1275
Number of processor patches = 7
Number of processor faces = 12731
Number of boundary faces = 72556
Processor 5
Number of cells = 263476
Number of faces shared with processor 3 = 1294
Number of faces shared with processor 4 = 1953
Number of faces shared with processor 6 = 4625
Number of faces shared with processor 7 = 846
Number of faces shared with processor 8 = 2209
Number of faces shared with processor 9 = 2269
Number of processor patches = 6
Number of processor faces = 13196
Number of boundary faces = 76856
Processor 6
Number of cells = 266174
Number of faces shared with processor 2 = 2900
Number of faces shared with processor 3 = 1048
Number of faces shared with processor 4 = 1275
Number of faces shared with processor 5 = 4625
Number of faces shared with processor 7 = 2485
Number of faces shared with processor 8 = 2594
Number of faces shared with processor 9 = 334
Number of processor patches = 7
Number of processor faces = 15261
Number of boundary faces = 65185
Processor 7
Number of cells = 263010
Number of faces shared with processor 1 = 1848
Number of faces shared with processor 1 = 0
Number of faces shared with processor 2 = 1900
Number of faces shared with processor 3 = 2
Number of faces shared with processor 5 = 846
Number of faces shared with processor 6 = 2485
Number of faces shared with processor 8 = 2327
Number of faces shared with processor 9 = 3525
Number of faces shared with processor 10 = 0
Number of faces shared with processor 11 = 0
Number of faces shared with processor 12 = 0
Number of faces shared with processor 13 = 0
Number of faces shared with processor 14 = 0
Number of faces shared with processor 15 = 0
Number of faces shared with processor 16 = 0
Number of faces shared with processor 17 = 0
Number of faces shared with processor 18 = 0
Number of faces shared with processor 19 = 0
Number of processor patches = 18
Number of processor faces = 12933
Number of boundary faces = 77735
Processor 8
Number of cells = 265001
Number of faces shared with processor 1 = 58
Number of faces shared with processor 1 = 0
Number of faces shared with processor 2 = 534
Number of faces shared with processor 3 = 3800
Number of faces shared with processor 5 = 2209
Number of faces shared with processor 6 = 2594
Number of faces shared with processor 7 = 2327
Number of faces shared with processor 9 = 5230
Number of faces shared with processor 10 = 0
Number of faces shared with processor 11 = 0
Number of faces shared with processor 12 = 0
Number of faces shared with processor 13 = 0
Number of faces shared with processor 14 = 0
Number of faces shared with processor 15 = 0
Number of faces shared with processor 16 = 0
Number of faces shared with processor 17 = 0
Number of faces shared with processor 18 = 0
Number of faces shared with processor 19 = 0
Number of processor patches = 18
Number of processor faces = 16752
Number of boundary faces = 55549
Processor 9
Number of cells = 262576
Number of faces shared with processor 1 = 2998
Number of faces shared with processor 1 = 0
Number of faces shared with processor 3 = 471
Number of faces shared with processor 5 = 2269
Number of faces shared with processor 6 = 334
Number of faces shared with processor 7 = 3525
Number of faces shared with processor 8 = 5230
Number of faces shared with processor 10 = 0
Number of faces shared with processor 11 = 0
Number of faces shared with processor 12 = 0
Number of faces shared with processor 13 = 0
Number of faces shared with processor 14 = 0
Number of faces shared with processor 15 = 0
Number of faces shared with processor 16 = 0
Number of faces shared with processor 17 = 0
Number of faces shared with processor 18 = 0
Number of faces shared with processor 19 = 0
Number of processor patches = 17
Number of processor faces = 14827
Number of boundary faces = 70761
Processor 10
Number of cells = 265117
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 11 = 7071
Number of faces shared with processor 13 = 630
Number of faces shared with processor 14 = 3741
Number of faces shared with processor 17 = 4023
Number of faces shared with processor 18 = 4724
Number of processor patches = 8
Number of processor faces = 20189
Number of boundary faces = 7712
Processor 11
Number of cells = 263454
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 10 = 7071
Number of faces shared with processor 12 = 6142
Number of faces shared with processor 14 = 2643
Number of faces shared with processor 18 = 3296
Number of processor patches = 7
Number of processor faces = 19152
Number of boundary faces = 7896
Processor 12
Number of cells = 263907
Number of faces shared with processor 1 = 849
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 11 = 6142
Number of faces shared with processor 13 = 4976
Number of faces shared with processor 14 = 4134
Number of processor patches = 7
Number of processor faces = 16101
Number of boundary faces = 9177
Processor 13
Number of cells = 266729
Number of faces shared with processor 1 = 2152
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 10 = 630
Number of faces shared with processor 12 = 4976
Number of faces shared with processor 14 = 6982
Number of faces shared with processor 15 = 3286
Number of faces shared with processor 16 = 4324
Number of faces shared with processor 17 = 413
Number of processor patches = 10
Number of processor faces = 22763
Number of boundary faces = 8880
Processor 14
Number of cells = 266966
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 10 = 3741
Number of faces shared with processor 11 = 2643
Number of faces shared with processor 12 = 4134
Number of faces shared with processor 13 = 6982
Number of faces shared with processor 15 = 477
Number of faces shared with processor 16 = 1599
Number of faces shared with processor 17 = 1375
Number of processor patches = 10
Number of processor faces = 20951
Number of boundary faces = 9409
Processor 15
Number of cells = 264567
Number of faces shared with processor 1 = 967
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 13 = 3286
Number of faces shared with processor 14 = 477
Number of faces shared with processor 16 = 7013
Number of faces shared with processor 17 = 836
Number of faces shared with processor 19 = 4931
Number of processor patches = 9
Number of processor faces = 17510
Number of boundary faces = 11369
Processor 16
Number of cells = 265412
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 13 = 4324
Number of faces shared with processor 14 = 1599
Number of faces shared with processor 15 = 7013
Number of faces shared with processor 17 = 4906
Number of faces shared with processor 19 = 791
Number of processor patches = 8
Number of processor faces = 18633
Number of boundary faces = 5432
Processor 17
Number of cells = 267247
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 10 = 4023
Number of faces shared with processor 13 = 413
Number of faces shared with processor 14 = 1375
Number of faces shared with processor 15 = 836
Number of faces shared with processor 16 = 4906
Number of faces shared with processor 18 = 3215
Number of faces shared with processor 19 = 5592
Number of processor patches = 10
Number of processor faces = 20360
Number of boundary faces = 9586
Processor 18
Number of cells = 265442
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 10 = 4724
Number of faces shared with processor 11 = 3296
Number of faces shared with processor 17 = 3215
Number of faces shared with processor 19 = 5855
Number of processor patches = 7
Number of processor faces = 17090
Number of boundary faces = 9766
Processor 19
Number of cells = 266413
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 15 = 4931
Number of faces shared with processor 16 = 791
Number of faces shared with processor 17 = 5592
Number of faces shared with processor 18 = 5855
Number of processor patches = 7
Number of processor faces = 17169
Number of boundary faces = 8530
Number of processor faces = 161749
Max number of cells = 267247 (0.9698885333% above average 264679.9)
Max number of processor patches = 18 (91.4893617% above average 9.4)
Max number of faces between processors = 22763 (40.73039091% above average 16174.9)
#0 Foam::error::printStack(Foam::Ostream&) at ??:?
#1 Foam::sigSegv::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::hexRef8Data::hexRef8Data(Foam::IOobject const&, Foam::hexRef8Data const&, Foam::List<int> const&, Foam::List<int> const&) at ??:?
#4 Foam::domainDecomposition::writeProcs(bool) const at ??:?
#5 Foam::domainDecomposition::readDecompose(bool) at ??:?
#6 ? in "/opt/openfoam11/platforms/linux64GccDPInt32Opt/bin/decomposePar"
#7 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#8 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#9 ? in "/opt/openfoam11/platforms/linux64GccDPInt32Opt/bin/decomposePar"
Segmentation fault (core dumped)
Code:
Create time
Decomposing mesh region0
Create mesh
Calculating distribution of cells
Selecting decomposer simple
Finished decomposition in 1.953125 s
Calculating original mesh data
Distributing cells to processors
Distributing faces to processors
Distributing points to processors
Constructing processor meshes
Processor 0
Number of cells = 502409
Number of faces shared with processor 1 = 3296
Number of faces shared with processor 1 = 0
Number of faces shared with processor 1 = 0
Number of faces shared with processor 2 = 5847
Number of faces shared with processor 2 = 0
Number of faces shared with processor 2 = 0
Number of faces shared with processor 3 = 11
Number of faces shared with processor 3 = 0
Number of faces shared with processor 3 = 0
Number of faces shared with processor 4 = 11993
Number of faces shared with processor 4 = 0
Number of faces shared with processor 4 = 0
Number of faces shared with processor 4 = 0
Number of faces shared with processor 4 = 0
Number of faces shared with processor 5 = 36
Number of faces shared with processor 5 = 0
Number of faces shared with processor 5 = 0
Number of faces shared with processor 6 = 7
Number of faces shared with processor 6 = 0
Number of faces shared with processor 6 = 0
Number of faces shared with processor 6 = 0
Number of faces shared with processor 6 = 0
Number of faces shared with processor 7 = 0
Number of faces shared with processor 7 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 8 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 9 = 0
Number of faces shared with processor 10 = 0
Number of faces shared with processor 10 = 0
Number of faces shared with processor 10 = 0
Number of faces shared with processor 10 = 0
Number of faces shared with processor 11 = 0
Number of faces shared with processor 11 = 0
Number of faces shared with processor 12 = 0
Number of faces shared with processor 12 = 0
Number of faces shared with processor 12 = 0
Number of faces shared with processor 12 = 0
Number of faces shared with processor 13 = 0
Number of faces shared with processor 13 = 0
Number of faces shared with processor 14 = 0
Number of faces shared with processor 14 = 0
Number of faces shared with processor 15 = 0
Number of faces shared with processor 15 = 0
Number of faces shared with processor 16 = 0
Number of faces shared with processor 16 = 0
Number of faces shared with processor 17 = 0
Number of faces shared with processor 17 = 0
Number of faces shared with processor 18 = 0
Number of faces shared with processor 18 = 0
Number of faces shared with processor 19 = 0
Number of faces shared with processor 19 = 0
Number of processor patches = 54
Number of processor faces = 21190
Number of boundary faces = 132073
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you get the point
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Number of processor faces = 321187
Max number of cells = 502409 (89.81758721% above average 264679.9)
Max number of processor patches = 58 (17.88617886% above average 49.2)
Max number of faces between processors = 60975 (89.84267732% above average 32118.7)
#0 Foam::error::printStack(Foam::Ostream&) at ??:?
#1 Foam::sigSegv::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::hexRef8Data::hexRef8Data(Foam::IOobject const&, Foam::hexRef8Data const&, Foam::List<int> const&, Foam::List<int> const&) at ??:?
#4 Foam::domainDecomposition::writeProcs(bool) const at ??:?
#5 Foam::domainDecomposition::readDecompose(bool) at ??:?
#6 ? in "/opt/openfoam11/platforms/linux64GccDPInt32Opt/bin/decomposePar"
#7 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#8 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#9 ? in "/opt/openfoam11/platforms/linux64GccDPInt32Opt/bin/decomposePar"
Segmentation fault (core dumped)
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