CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Own boundary condition modified simpleFoam erorr in parallel execution

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 1, 2008, 09:47
Default Hello FOAMing user, I am work
  #1
New Member
 
David Sponiar
Join Date: Mar 2009
Location: Prague, Czech rep.
Posts: 27
Rep Power: 17
sponiar is on a distinguished road
Hello FOAMing user,
I am working on adjoint problem in internal and external aerodynamic. I take simpleFoam source code and append new one vector field 'V' and one scalar field 'q'.
There is also new boundary condition for vector 'V', which is implement for walls.
I have simple case with external aerodynamic:
- with cylinder like bluff body,
- Re ~ 2.5 mil.,
- Spalart Allmaras,
- total sum of finite volumes is 300e+03.

Simulation is succesfully runnig in single.
When I decompose domain with METIS into the:
- 2 subdomain, OK
- 3 subdomains, OK
- 4 subdomains, BAD
- more then 4, BAD

For the single process, or parallel run upto the 3 CPUs is sumalation OK. But when is domain decompose into the 4 and more CPUs, some errors occur:

------------------------------------------------

[cld:01519] *** Process received signal ***
[cld:01519] Signal: Floating point exception (8)
[cld:01519] Signal code: (-6)
[cld:01519] Failing at address: 0xbc1000005ef
[cld:01519] [ 0] /lib64/libc.so.6 [0x2ac5a1fcac10]
[cld:01519] [ 1] /lib64/libc.so.6(gsignal+0x35) [0x2ac5a1fcab95]
[cld:01519] [ 2] /lib64/libc.so.6 [0x2ac5a1fcac10]
[cld:01519] [ 3] /home/sponiar/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libfiniteVolume.so(_ZN K4Foam21processorLduInterface14compressedSendINS_6 VectorIdEEEEvRKNS_5UListIT_EEb +0x92) [0x2ac5a058e072]
[cld:01519] [ 4] /home/sponiar/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libfiniteVolume.so(_ZN 4Foam21processorFvPatchFieldINS_6VectorIdEEE12init EvaluateEb+0x65) [0x2ac5a0591055]
[cld:01519] [ 5] simpleFoam_Ev04_2008-06-07(_ZN4Foam14GeometricFieldINS_6VectorIdEENS_12fvP atchFi eldENS_7volMeshEE22GeometricBoundaryField8evaluate Ev+0x87) [0x425f57]
[cld:01519] [ 6] /home/sponiar/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libfiniteVolume.so(_ZN 4Foam3fvc16surfaceIntegrateINS_6VectorIdEEEENS_3tm pINS_14GeometricFieldIT_NS_12f vPatchFieldENS_7volMeshEEEEERKNS5_IS6_NS_13fvsPatc hFieldENS_11surfaceMeshEEE+0x3 b0) [0x2ac5a0a56610]
[cld:01519] [ 7] /home/sponiar/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libfiniteVolume.so(_ZN 4Foam3fvc16surfaceIntegrateINS_6VectorIdEEEENS_3tm pINS_14GeometricFieldIT_NS_12f vPatchFieldENS_7volMeshEEEEERKNS4_INS5_IS6_NS_13fv sPatchFieldENS_11surfaceMeshEE EEE+0x2f) [0x2ac5a0a567bf]
[cld:01519] [ 8] /home/sponiar/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libfiniteVolume.so(_ZN 4Foam2fv14gaussDivSchemeINS_6TensorIdEEE6fvcDivERK NS_14GeometricFieldIS3_NS_12fv PatchFieldENS_7volMeshEEE+0x69) [0x2ac5a0a577c9]
[cld:01519] [ 9] /home/sponiar/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libincompressibleTurbu lenceModels.so(_ZN4Foam3fvc3divINS_6TensorIdEEEENS _3tmpINS_14GeometricFieldINS_1 2innerProductINS_6VectorIdEET_E4typeENS_12fvPatchF ieldENS_7volMeshEEEEERKNS5_IS9 _SC_SD_EERKNS_4wordE+0x68) [0x2ac59fc35da8]
[cld:01519] [10] /home/sponiar/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libincompressibleTurbu lenceModels.so(_ZN4Foam3fvc3divINS_6TensorIdEEEENS _3tmpINS_14GeometricFieldINS_1 2innerProductINS_6VectorIdEET_E4typeENS_12fvPatchF ieldENS_7volMeshEEEEERKNS5_IS9 _SC_SD_EE+0x1d2) [0x2ac59fc37e22]
[cld:01519] [11] /home/sponiar/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libincompressibleTurbu lenceModels.so(_ZN4Foam3fvc3divINS_6TensorIdEEEENS _3tmpINS_14GeometricFieldINS_1 2innerProductINS_6VectorIdEET_E4typeENS_12fvPatchF ieldENS_7volMeshEEEEERKNS4_INS 5_IS9_SC_SD_EEEE+0x2f) [0x2ac59fc37eff]
[cld:01519] [12] /home/sponiar/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libincompressibleTurbu lenceModels.so(_ZNK4Foam16turbulenceModels15Spalar tAllmaras4divRERNS_14Geometric FieldINS_6VectorIdEENS_12fvPatchFieldENS_7volMeshE EE+0xe8) [0x2ac59fd34f08]
[cld:01519] [13] simpleFoam_Ev04_2008-06-07 [0x4161e9]
[cld:01519] [14] /lib64/libc.so.6(__libc_start_main+0xf4) [0x2ac5a1fb8154]
[cld:01519] [15] simpleFoam_Ev04_2008-06-07(__gxx_personality_v0+0xd9) [0x412f69]
[cld:01519] *** End of error message ***


------------------------------------------------

Maybe, it seems like:
when interface of subdomains is lies on patch, where is implement new boundary condition, something is wrong.

I don't know where could be a mistake.
Could you give some hint?
David
_____
sponiar is offline   Reply With Quote

Old   August 27, 2008, 10:16
Default Hi FOAMing users, with new Op
  #2
New Member
 
David Sponiar
Join Date: Mar 2009
Location: Prague, Czech rep.
Posts: 27
Rep Power: 17
sponiar is on a distinguished road
Hi FOAMing users,
with new OpenFOAM 1.5 and new option in decomposition domain: 'preservePatches', which take a patch and give it with sourrounding cells to one proccessor.

I rebuild the solver and BC for OopenFOAM 1.5 and use this option during decomposition.


It doesn't work, when the case is running on the more then 4 CPUs. So I play with set-up fvSolutinon and changed GAMG solver to PCG with GAMG preconditier.
It looks more stable when I use for pressure and adjoint pressure PCGGAMG, when simulation is runnig on 2 or 4 CPUs. When I use more then 4CPUS, GAMG is more stable.



Strange things happend: when I stop simulation (CTRL+C) and again strart the same simulation, same error occurs. So I wait for example 1 minute and re-run same simulation with same set-up and it goes correct.
Same things occurs in OF 1.4.1 and OF 1.5.

I try the aplication 'statifier', which build solver static. I though, when solver is static, it could be more stable. But same error occurs.

Should I rewrite boundary condition for parallel runnig? Solver is stable in single proccess in every case, which I tested.
May help rebuild OpenFOAM library to static form for stable runnig?

Please, give me some hint.
David
sponiar is offline   Reply With Quote

Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Boundary condition in parallel ffbof OpenFOAM Running, Solving & CFD 7 June 14, 2010 14:26
Boundary condition error depending on location of solver execution kjmaki OpenFOAM Running, Solving & CFD 0 June 18, 2008 16:04
Define non uniform TKE boundary condition in simpleFOAM qtian OpenFOAM Running, Solving & CFD 9 July 30, 2007 15:54
Parallel execution of customized solver otsuki OpenFOAM Running, Solving & CFD 2 March 24, 2006 08:47
Parallel interfom trouble in execution mer OpenFOAM Running, Solving & CFD 6 October 18, 2005 06:45


All times are GMT -4. The time now is 11:24.