Hi Neil Have you tried the command set max_threads, 4 That should enforce 4 threads, even on single CPU machines. Then it's up to the kernel scheduler to distribute them to the defferent CPUs Cheers, Esben
-----Original Message----- From: pymol-users-ad...@lists.sourceforge.net [mailto:pymol-users-ad...@lists.sourceforge.net] On Behalf Of Neil Ranson Sent: 19. april 2005 13:34 To: PyMOL-users@lists.sourceforge.net Subject: [PyMOL] multi cpu rendering Dear All, I've been preparing figures for a manuscript on a Sun v40z with 4 x Opteron 850 cpu's and 8Gb of memory (and Suse9.0). When I start pymol: > pymol.com -c script.pml pymol says that it detects 4cpu and enables multithreaded rendering, but I never see it using more than one cpu. Especially for producing ray traced movies, I'd really like to see the multiprocessing benefits. Does anyone have any suggestions? Cheers, Neil