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Old   October 9, 2008, 08:42
Default Dear users, 1. How can I st
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stephane sanchi
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Dear users,

1. How can I stop 'properly' a multi-processors job that is running in background ? and maybe also save the results of the last iterations ?

2. Is it possible to plot the residuals while the job is running ?

Thanks for helping me,

Stephane.
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Old   October 9, 2008, 15:21
Default Have a look at section 4.3 of
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Have a look at section 4.3 of the 1.5 UserGuide:

Replace in the controlDict the current stopAt-Value with writeNow. Save and wait. But be sure not to mistype because then your run might stop without writing anything

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Old   October 10, 2008, 02:38
Default Thanks Bernhard for your help
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stephane sanchi
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Thanks Bernhard for your help !
Stephane.
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Old   October 10, 2008, 08:59
Default During calculation you can mak
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During calculation you can make :

reconstructPar
paraFoam&

You can see the first output
and 20min later you can update it :

reconstructPar
in paraFoam => update content

in order to kill a job I use
ps to get the PID
kill ...

Then if you want to start from the last output, you have to modify your controlDict and change the start time.
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Old   October 10, 2008, 09:47
Default For solvers that I use often,
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Mark Olesen
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For solvers that I use often, I've added the following bits of code.

1.
At the top bit of the main(), before the time loop starts:

// define ABORT file for stopping the job
fileName abortName(args.rootPath()/args.globalCaseName()/"ABORT");
if (file(abortName))
{
Info<< "removing old ABORT file" << endl;
rm(abortName);
}


2. In the bottom part of the time loop:

runTime.write();

Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;

if (file(abortName))
{
Info<< "reacting to user ABORT" << endl;
runTime.writeAndEnd();
}


3. Finally outside of the time loop:


// cleanup ABORT file
if (file(abortName))
{
rm(abortName);
}



This makes the solver react to the existence of the file 'ABORT' and works well with serial or parallel calculations.

It could make a nice functionObject, but to be convenient there'd need to be some way of defining site or user global functionObjects. Eg, via the existing etc/controlDict mechanism, or with a ~OpenFOAM/... directory expansion.
I'd certainly want to avoid adding the functionObject to every single system/controlDict!
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Old   October 10, 2008, 10:33
Default Mark, I am a new user of Op
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stephane sanchi
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Mark,

I am a new user of OpenFoam !!!

into which file (controlDict) have you written these bits of code ?

Stephane
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Old   October 10, 2008, 14:44
Default Hi Stephane! Have a look at
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Hi Stephane!

Have a look at the chapter 4 of the user-guide. It is a most interesting read. Especially if you have to ask for the controlDict (which is THE most important file in any OF-case). Trust me.

Bernhard
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Old   October 13, 2008, 02:36
Default The bits of code have been add
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The bits of code have been added directly into the solver itself (eg, simpleFoam, rhoSimpleFoam, rhoPorousSimpleFoam, etc.)
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