I also just got a P4 with hyperthreading, and I found that running two
instances of POV-Ray actually runs less efficiently than running one
instance.

Running one instance could render a certain image in 35 seconds. Running two
instances at the same time, rendering the same image, took 1:20 seconds,
which is 10 seconds more than twice 35.

Someone wrote a patch that supports multithreading, and that may work better
with hyperthreading, but I haven't tried it.

 - Slime
 [ http://www.slimeland.com ]

Post a reply to this message