Guild Wars 2

I realize I’m many months late to the party on this question but is there any way to get Guild Wars 2 to use more than one core?

It does already. My average CPU usage for just GW2 is roughly 60-70% across 4 cores and that is just sitting in The Grove.

Looking with process explorer (game running in a window to do so), GW2 is running 40+ threads. One is using about 75% of a core, two about 50% of a core each and 5 others ranging from 8-15% of a core each.

Of course if you are running full screen and tab out it look overall usage drops. In my case from 60-70% to 35-40%.

http://i.imgur.com/I1f1SC1.jpg
What Behellagh says is correct. GW2 is actually utilizing multithreading quite well - it’s just that in huge events, like WvW zergs or at the dragons, there’s a problem (a sequential fraction of the code) that is not parallelized properly (either an oversight or they couldn’t do it better), which means the only thing that helps in these occasions is raw single core power. The effect is actually known as Amdahl’s law.

the game uses at least 3 cores if I’m not mistaken and if yours isn’t try to check your pc’s power settings and the core parking that might improve performance

to disable core parking: http://forum.cakewalk.com/tm.aspx?m=1861804