Using an IDE as eclipse you can follow the values of your variables while debugging.
This works fine for scalars, but not for vector or scalar fields..
Maybe somebody knows a possibility to have some kind of "graphical debugging"? Maybe you can visualize your current fields in paraview while debugging?

The VTK folks are in the process of adding run-time linking to paraview, which would allow the behaviour that you're looking for, though that's still work-in-progress.

I usually write a small code-snippet that outputs VTK files at certain code-locations, and they can be modified to contain vector / tensor data as well. Usually quite useful, because I'd like to look at a certain number of cells, and possibly glyph them for visualisation.

Hi Astrid,

Have you been able to set up debugging with gbd in eclipse for openFoam applications? I've followed the wiki (exactly, I think) and am able to run cases as well as compile new solvers (in Opt and Debug mode) but when it comes to debugging, it doesn't really work. If I select a run case ("cavity" for example) and hit the debug button I go to the debug perspective, some stuff runs and I end up with the attached screenshot, and this in the "terminal" window:

/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM®®: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.5-dev |
| \\ / A nd | Revision: 1821 |
| \\/ M anipulation | Web: www.OpenFOAM®®.org |
\*---------------------------------------------------------------------------*/
Exec : /home/brosemu/OpenFOAM®®/OpenFOAM®®-1.5-dev/applications/bin/linux64GccDPDebug/icoFoam
Date : Sep 27 2010
Time : 13:21:32
Host : name-cassia
PID : 28812
Case : /home/brosemu/OpenFOAM®®/brosemu-1.5-dev/run/icoFoam/cavity
nProcs : 1

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0

Reading transportProperties

Reading field p

Reading field U

Reading/calculating face flux field phi



Does anyone have any suggestions?

Thanks!

Hi Bill!

Maybe this is a problem with the 7.x version of the GNU Debugger. I faced the same problem with the preinstalled 7.x GNU gdb on kubuntu 10.04 LTS. Compiling and debugging worked, but once I opened the variables' tab gdb crashed. Seems to be a bug in the MI of 7.x gdb?!

So, installing a previous version of gdb, e.g. gdb 6.8, should help..

Hope this helps!

Best,

Astrid

Hi Astrid

Firstly many thanks for your excellent tutorials on the use of eclipse with OpenFOAM®.

I was hoping to work through your latest workshop paper on using eclipse for assessing the performance of bubbleFoam, but first of all decided to re-fresh my memory by going back through the original tutorial on the OpenFOAM® wiki. When I first tried this in July 2010 under Ubuntu 9.10 it worked perfectly, but now I've tried using eclipse with gdb again under Ubuntu 10.04 LTS I seem to get the exactly the same problem as Bill - the code comes up initially, but then terminates before you can begin to inspect it.

You suggest that this maybe a problem with the 7.x version of gdb. I have also run into problems trying to use gdbOF with my current version of gdb 7.1 which does not appear (to me) to correctly support the strcmp function.

You say you can workaround this problem by installing a previous version of gdb e.g. gdb 6.8. Can I ask further details how you went about doing this?

Is this use of a previous gdb version related to the first line you set in your June 2011 Workshop? -

export PATH=/home/ubuntu/gdb4Eclipse/bin:$PATH

Any advice would be gratefully appreciated.

Best regards

Paul.

Hi Paul!

Thanks for the compliments!

You're totally right. If you use the older version of gdb - in the OpenFOAM® Workshop Tutorial this is done by exporting the right path - debugging will work fine. Unfortunatly the bug is still present in newer 7.x versions of gdb as I tested that before the workshop.

Best regards,

Astrid