bash script for noob and OpenFoam
Posted May 14, 2013 at 00:13 by gregjunqua
Hi there I am a noob in linux and i like efficient tutorial, easy to understand easy to use.
Here is my first bash script for launch CFD job one after one while you are not there and perhaps sleeping.
P.S. there is a lot of copy with *.org, it's just i like to have the origin file. And this is quiet basic i hope one day i would give you an improved one.
----- Copy there --------------------------------------------------------------------------------------------
#/!bin/bash
# Launching script for experiment
cd job1
cp 0/alpha1.org 0/alpha1
cp 0/gamma.org 0/gamma
cp 0/pd.org 0/pd
cp 0/p_rgh.org 0/p_rgh
cp 0/U.org 0/U
cp 0/nut.org 0/nut
cp 0/k.org 0/k
cp 0/omega.org 0/omega
blockMesh
decomposePar
mpirun -np 2 waveFoam -parallel
reconstructPar
rm -r processor*
cd ..
cd job2
Here is my first bash script for launch CFD job one after one while you are not there and perhaps sleeping.
P.S. there is a lot of copy with *.org, it's just i like to have the origin file. And this is quiet basic i hope one day i would give you an improved one.
----- Copy there --------------------------------------------------------------------------------------------
#/!bin/bash
# Launching script for experiment
cd job1
cp 0/alpha1.org 0/alpha1
cp 0/gamma.org 0/gamma
cp 0/pd.org 0/pd
cp 0/p_rgh.org 0/p_rgh
cp 0/U.org 0/U
cp 0/nut.org 0/nut
cp 0/k.org 0/k
cp 0/omega.org 0/omega
blockMesh
decomposePar
mpirun -np 2 waveFoam -parallel
reconstructPar
rm -r processor*
cd ..
cd job2
Total Comments 1
Comments
-
I also think it's a good idea create a script to manage the case.
My idea is generate a shell-script running inside of each case, and then manage the results from a main script running outside of all the cases.
In the case I show you can change the structure of the script by a function and then pass the name of the variables 'RASmod' and 'MeshName' from the main script to this one.
If you are running in parallel and once you know that your case setup is correct, I think you can define in controlDict your sample functions to extract the profiles or whatever you're interesting. And then you don't need the reconstructPar function, wich is time consuming specially in unsteady.
What I mean is, at the end you have a main script placed on the top of your cases and different cases with the corresponding script to manage everything in the case. At the end of the simulation, some folders with different samples will be created, then you can manage it from you main script to call another script, let say written in octave to plot the profiles, save the images, etc.
This is what I'm doing.
An example of my first script working as a script and not as a function, and of course called from the terminal.
-------------------------------------------------------------------
run script:
#!/bin/bash
./erase
echo case erased
mkdir -p logs
RASmod=inout.kwSSTLowRe #CC: codeCase = {1->0.5mm, 2->1.0mm, 3->1.5mm, 4->2.0mm}
MeshName=yPlus1.msh
fluentMeshToFoam constant/polyMesh/mesh/$MeshName > logs/fluentMeshToFoam.log
echo mesh generated
decomposePar > logs/decomposePar.log
echo decomposition done
echo running the solver
time mpirun -np 4 simpleFoam -parallel > logs/simpleFoam.log
echo end of the simulation
reconstructPar > logs/reconstructPar.log
echo reconstruction done
yPlusRAS > logs/yPlusRAS.log
echo yPlusRAS computed
wallShearStress > logs/wallShearStress.log
echo wallShearStress computed
sample -latestTime > logs/sample.log
echo sample done
cd logs
gnuplot residuals
cd ..
echo residuals ploted
mv sets/streamLines/ ./
file=$(ls sets/)
mv sets/$file/* sets/
rm -r sets/$file
rm -r -f /home/$RASmod
cp -r sets /home/$RASmod
echo sample moved
echo work DONE
----------------------------------------------------------------------
erase script:
!/bin/bash
source ~/.bashrc
cd constant/polyMesh
rm -f faces neighbour owner points *Zones
cd ../../
RemoveAllCases
rm -r -f sets streamLines logs/*.log probes processor* 0/y 0/yPlus 0/R 0/wallShearStress
--------------------------------------------------------------------------------------
a function that I created to erase all the time step in case except 0
function RemoveAllCases
{
rm -r -f 0.* #also could remove the case 0.old!!!
for (( i=1; i<=9; i++)); do
rm -r -f $i*
done
}
--------------------------------------------------------------------------------------
Of course I did everything before to know OpenFOAM has its own function to manage the script, so I suggest you to use it! it's more elegant and less time consuming.Posted May 26, 2013 at 10:20 by s.espintolosa
Updated May 26, 2013 at 17:48 by s.espintolosa (privacy of the roots directories in some part of the code)
