How should I set up Qmaster to use all of my computer's cores? The Problem: I can't get compressor to use all of the power of all of my cores. That's what I want it to do. Please help me make it do that... any ideas would be very welcome. For one thing, Compressor doesn't show my quick cluster unless I check "managed" in the Qmaster prefs, and even then, i'm not using all of my processor power once I submit the batch. Shouldn't compressor see any cluster with services enabled for it, regardless of whether or not they are managed? (after I hit submit, the drop down gives me the opportunity to include managed and unmanaged clusters. i enabled that option. it doesn't make a difference). Assuming the cluster I want to use necessarily has to be managed, what does that mean? Is there something in particular I should be "managing" to get this thing to use all of my processor power? Here's what i'm using: Eight-Core 2009 (Nehalem) mac pro 2.66, 6gb RAM, 7200RPM drives not RAIDed. Correct me if I'm wrong, but I should have a total of 16 cores at my disposal, eight physical and eight logical. I'm running the latest version of leopard, and ran software update earlier today when I was thinking this might have been the problem. Here's what I've tried: I went to Qmaster settings in system preferences, and I set up a quick cluster with services, with 16 instances, checking the shared boxes for Compressor and Rendering. i experimented with managed and unmanaged, keeping shared checked. I also tried 8 instances just to see if that would make my computer use eight cores, ie: not requiring the use of hyperthreading. it makes no difference... exactly the same results. i've restarted my computer after making clusters to see if that's what compressor needed to see/utilize a freshly set up one, but that doesn't seem to make a difference either.