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Old   October 2, 2013, 08:51
Default Getting LinuxMem: [Errno 2] No such file or directory: '/proc/9170/status'
  #1
s.m
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saeideh mohamadi
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Hi,
i am simulating the flow over an airfoil, i use sapalartAllmaras turbulence model, and simpleFoam solver,
after 473 iterate it give me this error and exit the iteration after that :

Getting LinuxMem: [Errno 2] No such file or directory: '/proc/9170/status'

what should i do, please give me some guidance
Code:
Time = 472

smoothSolver:  Solving for Ux, Initial residual = 0.0013927, Final residual = 1.15184e-05, No Iterations 7
smoothSolver:  Solving for Uy, Initial residual = 0.00151985, Final residual = 1.39483e-05, No Iterations 7
GAMG:  Solving for p, Initial residual = 0.0330439, Final residual = 1.83226e-05, No Iterations 10
GAMG:  Solving for p, Initial residual = 0.00158952, Final residual = 1.37841e-06, No Iterations 6
GAMG:  Solving for p, Initial residual = 0.000741389, Final residual = 3.87226e-07, No Iterations 7
time step continuity errors : sum local = 1.82986e-07, global = -1.07452e-14, cumulative = -3.27814e-12
smoothSolver:  Solving for nuTilda, Initial residual = 0.00234781, Final residual = 2.17256e-05, No Iterations 4
--> FOAM Warning :
From function tmp<volScalarField> SpalartAllmaras::k() const
in file SpalartAllmaras/SpalartAllmaras.C at line 243
Turbulence kinetic energy not defined for Spalart-Allmaras model. Returning zero field
--> FOAM Warning :
From function tmp<volScalarField> SpalartAllmaras::k() const
in file SpalartAllmaras/SpalartAllmaras.C at line 243
Turbulence kinetic energy not defined for Spalart-Allmaras model. Returning zero field
--> FOAM Warning :
From function tmp<volScalarField> SpalartAllmaras::k() const
in file SpalartAllmaras/SpalartAllmaras.C at line 243
Turbulence kinetic energy not defined for Spalart-Allmaras model. Returning zero field
ExecutionTime = 1272.27 s  ClockTime = 1372 s

forceCoeffs output:
Cm    = 0.851865
Cd    = -0.0668863
Cl    = 2.09587
Cl(f) = 1.8998
Cl(r) = 0.196069

forceCoeffs output:
Cm    = -0.0102469
Cd    = -0.0895791
Cl    = 0.207119
Cl(f) = 0.0933124
Cl(r) = 0.113806

forceCoeffs output:
Cm    = 0.32755
Cd    = 0.224488
Cl    = 0.300781
Cl(f) = 0.477941
Cl(r) = -0.17716

Time = 473
Duration of pickling 41.032533884 too long. Extending frequency from 1.0 to 2051.6266942

smoothSolver:  Solving for Ux, Initial residual = 0.00140234, Final residual = 1.15912e-05, No Iterations 7
smoothSolver:  Solving for Uy, Initial residual = 0.00152834, Final residual = 1.40133e-05, No Iterations 7
GAMG:  Solving for p, Initial residual = 0.0337894, Final residual = 1.80586e-05, No Iterations 10
GAMG:  Solving for p, Initial residual = 0.00153707, Final residual = 1.49885e-06, No Iterations 6
GAMG:  Solving for p, Initial residual = 0.000709925, Final residual = 3.63655e-07, No Iterations 7
time step continuity errors : sum local = 1.72361e-07, global = -8.50566e-15, cumulative = -3.28665e-12
smoothSolver:  Solving for nuTilda, Initial residual = 0.00236463, Final residual = 2.18312e-05, No Iterations 4
--> FOAM Warning :
From function tmp<volScalarField> SpalartAllmaras::k() const
in file SpalartAllmaras/SpalartAllmaras.C at line 243
Turbulence kinetic energy not defined for Spalart-Allmaras model. Returning zero field
--> FOAM Warning :
From function tmp<volScalarField> SpalartAllmaras::k() const
in file SpalartAllmaras/SpalartAllmaras.C at line 243
Turbulence kinetic energy not defined for Spalart-Allmaras model. Returning zero field
--> FOAM Warning :
From function tmp<volScalarField> SpalartAllmaras::k() const
in file SpalartAllmaras/SpalartAllmaras.C at line 243
Turbulence kinetic energy not defined for Spalart-Allmaras model. Returning zero field
ExecutionTime = 1276.19 s  ClockTime = 1728 s

forceCoeffs output:
Cm    = 0.849925
Cd    = -0.067174
Cl    = 2.09219
Cl(f) = 1.89602
Cl(r) = 0.19617

forceCoeffs output:
Cm    = -0.0101749
Cd    = -0.0889825
Cl    = 0.206383
Cl(f) = 0.0930168
Cl(r) = 0.113367

forceCoeffs output:
Cm    = 0.326995
Cd    = 0.2243
Cl    = 0.300192
Cl(f) = 0.477091
Cl(r) = -0.176899

Time = 474

smoothSolver:  Solving for Ux, Initial residual = 0.00141171, Final residual = 1.16636e-05, No Iterations 7
smoothSolver:  Solving for Uy, Initial residual = 0.00153671, Final residual = 1.40768e-05, No Iterations 7
GAMG:  Solving for p, Initial residual = 0.0348114, Final residual = 3.40433e-05, No Iterations 9
GAMG:  Solving for p, Initial residual = 0.00153878, Final residual = 1.47378e-06, No Iterations 6
GAMG:  Solving for p, Initial residual = 0.000719226, Final residual = 3.64595e-07, No Iterations 7
Getting LinuxMem: [Errno 2] No such file or directory: '/proc/9170/status'

Last edited by wyldckat; October 5, 2013 at 06:27. Reason: Added [CODE][/CODE]
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Old   October 5, 2013, 06:32
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  #2
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Bruno Santos
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wyldckat is just really nicewyldckat is just really nicewyldckat is just really nicewyldckat is just really nice
Greetings s.m,

A few questions:
  1. Which OpenFOAM version are you using?
  2. Are you able to reproduce this error with one of OpenFOAM's own tutorials?
  3. Which function objects are you using? (It's those inside the block "functions" in the "controlDict" file.)
  4. Can you provide an example case?
  5. Did you run in parallel?
Without this information, my only guess is that the solver crashed in such a way that OpenFOAM's print stack feature didn't work.

Best regards,
Bruno

PS: please follow the instructions on the second link of my signature, for whenever you need to post output from solvers or utilities, or source code!
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Old   October 9, 2013, 09:55
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s.m
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saeideh mohamadi
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Quote:
Originally Posted by wyldckat View Post
Greetings s.m,

A few questions:
  1. Which OpenFOAM version are you using?
  2. Are you able to reproduce this error with one of OpenFOAM's own tutorials?
  3. Which function objects are you using? (It's those inside the block "functions" in the "controlDict" file.)
  4. Can you provide an example case?
  5. Did you run in parallel?
Without this information, my only guess is that the solver crashed in such a way that OpenFOAM's print stack feature didn't work.

Best regards,
Bruno

PS: please follow the instructions on the second link of my signature, for whenever you need to post output from solvers or utilities, or source code!
1. i install "GeekoCFD.x86_64-5.0.0" that is containing the openFoam 2.2.0
2. no i didn't run openFoam's tutorial to get this error
3. i am using the "forceCoeffs" function for expressing the cd&cl on airfoil
4. my case' volume is too large
5. no i didn't run my case in parallel.
i change my opensuse several time, but this problem is still annoying me, and my run stops every 500 steps approximately after giving this error.

Thank you for spending your time to solve my problem
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Old   October 11, 2013, 16:25
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Bruno Santos
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wyldckat is just really nicewyldckat is just really nicewyldckat is just really nicewyldckat is just really nice
Hi s.m,

My suggestion is to either install OpenFOAM 2.2.1 or 2.2.x, because I've got a feeling that what you are seeing is a bug that has already been fixed in the latest OpenFOAM versions.

If you could adapt an existing OpenFOAM tutorial case to use the same kind of simulation characteristics that your case is using, and if that test case were to give the same error, then you could share that test case and I could confirm if this is a bug in OpenFOAM 2.2.0 that has already been fixed or not.


Either way, from what I can see, there are at least two ways you can install OpenFOAM 2.2.1:
  1. Install GeckoCFD 5.1.0: http://albertopassalacqua.com/?p=1318
  2. Or by following the instructions given here: http://openfoamwiki.net/index.php/In...#openSUSE_12.3
    • Note: For this, you'll have to edit the file "~/.bashrc" and comment out (prepend a # ) the line related to OpenFOAM 2.2 that GeckoCFD provides.
Best regards,
Bruno
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