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[Bug 678880] Re: Number of CPUs setting is ignored when stitching

To: hugin-devs@xxxxxxxxxxxxxxxxxxx
From: tmodes <678880@xxxxxxxxxxxxxxxxxx>
Date: Mon, 29 Nov 2010 20:54:53 -0000
Reply-to: Bug 678880 <678880@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: hugin
   Importance: Undecided => Low

** Changed in: hugin
       Status: New => Triaged

** Tags added: hugin makefile preference

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Number of CPUs setting is ignored when stitching
https://bugs.launchpad.net/bugs/678880
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Status in Hugin - Panorama Tools GUI: Triaged

Bug description:
hugin has a 'Number of CPUs' setting which is probably used when rendering the preview, but is not passed as a '-t' parameter when stitching with nona.

Consequently nona (probably) uses as many CPUs as are available, this is not desired if stitching is intended to be a background process.

This can be worked around by stitching on the command line with something like this:

  NONA='nona -t 1' make -e [etc...]

Perhaps this parameter should really be a preference for the 'batch stitcher' and nothing to do with hugin at all?

(originally reported on hugin-ptx by kevin at bluelavalamp)