alemanda wrote:
Hi,
I opened a new project in archicad 13 64bit on WIN Vista 64bit. Ok.
I opened a big big TW project in another instance of Archicad 13 64bit on the same machine and I noted that the two instances use the same cpu core and not two different cores.
Result
It's impossible to use the instance of archicad with the new (empty) project.
Is it a normal behaviour?
Regards
Alternatively, if you are using Windows vista or Windows 7, you can assign each instance of ArchiCAD to use separate cores from your taskmanager (under the processes tab; right click-> Set Affinity -> choose the specific core number to use.)
Frankly speaking I don't think it will make that much of a difference since you never really have both instances running in the foreground at the same time. All that this does really, is it locks out some of the cores from each particular instance, (and potentially reduces the performance for each instance due to fewer available cores.)
Typically Windows knows exactly how to assign priorities to separate cores so that you always get optimal performance and functionality with whatever you have running in the foreground, while background (minimized) processes receive lower priority.
The only time I ever assign cores is when I'm rendering using a brute force renderer (like Vray which is set to use all cores to 100% by default) and I still need to use my computer for other tasks at the same time.
Hopefully I understood what you were asking specifically, and hopefully this helps somewhat.