Post processing a big case

Submitted by tkulju on Mon, 09/26/2011 - 12:11

Hi!
I'm having a case with 70-80 000 particles (2 types) and creating VTK-files with pizza takes ages. Is there any way to speed it up? Or is the only way to run the simulation again and drop the dump frequency?

Thanks,

Timo

Forums:

ckloss's picture

ckloss | Mon, 09/26/2011 - 13:07

there is a new release of pizza pending (2 or 3 weeks probably) that processes files in parallel and uses the python multiprocessing tool

Christoph

schmeeck | Sat, 12/31/2011 - 06:04

I wrote a small fortran program to output a dump file to OpenFOAM Lagrangian format files whihc can be directly loaded by Paraview. This bypasses pizza.py. I have a value called nevery that can be adjusted to skip output from the dump file. I cant seem to find an attachment button to put it online. Perhaps this file is useful to nobody but me. If someone thinks this might be useful. I'll try to find a way to attach it.

ckloss's picture

ckloss | Thu, 01/05/2012 - 15:53

yes, it would be great if you could share it, I think many people would find this useful
if you create a new thread, you can attach it

Thanks,
Christoph

wladek | Fri, 01/13/2012 - 11:06

Assuming there is no newer version of pizza than that from 17 Aug 2010, I rewrote function particleGran in src/vtk.py which is used when one creates series of vtk files using manyGran() command in pizza

after my refreshment you no longer need 19-24 columns in dump file but you can save as many variables as you need, so it might work slightly faster in some cases

if somebody would tell me how to do that I will upload this file here

Rafal