I have 1 PC, 1 iMac and 5 laptops and use only 1 or 2 at a time. My hobby is developing web, video/audio editing. So when encoding videos, I would like to assign other laptops for parallel processing so less encoding time. Is there any software that will share the processing load like a distributed software? I couldn't find one yet.
Apple's Compressor can use distributed rendering very simply, just by adding them to a list in Prefs - but only to other Macs.
I don't know of anything cross-platform.