[Qgis-developer] python multiprocessing module in a processing toolbox script

[Sergio Vignali]

Dear all,

I have been working on how to speed up some raster processing  that require
long time when performed on large files. I wrote a script that use the
multiprocessing python module and it works well if I use PyCharm, reducing
more than the half the time necessary to process the image with my 4-cores
processor. I can see all my cores max out in the System Monitor and I don't
get any kind of error.

The problem comes up if I try to execute the same script as a Processing
Toolbox script, it never ends and after long time qgis crashes.. That's a
pity because it would be great to have and use it directly inside qgis!

Is there a way to fix this problem or another way to perform the same?

All the best

-- 
Sergio Vignali
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