[jgomez]

While saving an animation using Paraview 3.12 the memory usage increases until the computer becomes unresponsive and i have to perform a hard reboot.

The geometry contains around 80000 cells. Paraview is supposed to save 800 jpg images for the animation but just around 30% of them are saved before the memory usage reaches 100%

Has anybody experienced this issue in Paraview 3.12? Is there any workaround or fix for it or do i have to compile Paraview again?

Turning geometry caching off doesn´t resolve the issue.

Thanks

[wyldckat]

Greetings jgomez and welcome to the forum!

80000 cells isn't much. The problem might be related to the plugin you are using to open the case. Try the following possibilities:

• Use the built-in reader instead:

  paraFoam -builtin

• Use VTK files instead of the OpenFOAM readers:

  foamToVTK

  Then open the files that are inside the newly created VTK folder. Open the group file if you want to have time control (group files have two or more dots in the name of the file, with a + to the left of said group file).

Let us know if either one of these still gives you that problem.


If you are using the normal/official OpenFOAM reader (file extension ".OpenFOAM"), please tell us which version of OpenFOAM you are using and if you are able to reproduce this error with one of the tutorials on OpenFOAM.


Best regards,
Bruno

[joris.hey]

I have the same issue. I have last version of OpenFOAM v 2.1.0 (ubuntu installer).

It seems not to work with the built in reader neither.

Apparently it is a paraview problem : http://comments.gmane.org/gmane.comp.science.paraview.user/13439

Normally they fixed it after 3.10 ... But it seems not with paraFoam

[joris.hey]

It worked with FoamToVtk and then open vtk files with ParaView 3.6.0.

[jgomez]

I tried the suggestions provided by Bruno (thanks for the quick answer) without success. The memory kept filling up and then the pc crashes. As joris.hey wrote, it seems to be a problem with paraFoam itself.

And just for the record, i aḿ using an up to date repository version 2.1.x.

Additionally, the issue was "not reproducible" with the cavity tutorial (which i of course modified in order to have more cells and time steps). Still i wasn´t anywhere near the 80,000 cells of my original model so i don´t think that is conclusive enough.

I will install ParaView 3.6.0, try to open the vtk files with it as joris.hey suggested and post the results. Hope that works.

Best regards,
Juan

[joris.hey]

I guess it would work also with ParaView 3.12 (and not ParaFoam) , as they said they fixed it on the wiki.

cheers

[jgomez]

3.12 is actually my installed version of paraview but neither paraFoam nor vtk files nor the built-in reader allows me to save the animation. Funny thing, i just opened the same vtk files with paraview 3.14 (latest release candidate) and it worked fine. The animation was saved successfully and my memory usage indicator barely moved. So it seems the issue wasn´t totally solved in 3.10

[wyldckat]

Greetings to all!

Aaaarrg... I could really use a test case to check this for myself...

Anyway, if either one of you has the opportunity, try following these instructions: ParaView 3.12.0 SuperBuild on OpenFOAM
Basically it should give you a fully built ParaView, done in almost the same way that the official builds of ParaView are done.

Best regards,
Bruno

[eysteinn]

Originally Posted by jgomez

3.12 is actually my installed version of paraview but neither paraFoam nor vtk files nor the built-in reader allows me to save the animation. Funny thing, i just opened the same vtk files with paraview 3.14 (latest release candidate) and it worked fine. The animation was saved successfully and my memory usage indicator barely moved. So it seems the issue wasn´t totally solved in 3.10

. . . that might explain the memory leak I got the other day.
I see in the paraview changelog that there was some memory leak fixed from 3.12 to 14.
Did you manage to compile the OF-reader with paraview 3.14?

/Eysteinn

[niravtm007]

Hi my friends my problem is 2- phase flow in a river bed ( open channel flow) i need to capture animation of wavy nature which ocurs at the interface between air and water. mine is unsteady flow, so i got few results which vary with time. how can i animate this phenomenon using fluent or tec plot . please help

[kmooney]

I installed the latest PV release, V.3.98.0 and the memory leak appears to have been fixed! No need to convert to VTK first also.

Thanks for the great advice!

Cheers,

Kyle