Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!srhqla!avatar!kory From: kory@avatar.avatar.com (Kory Hamzeh) Newsgroups: comp.graphics Subject: Re: Any interest in a parallel raytracer? Keywords: Parallel Raytracers Message-ID: <115@avatar.avatar.com> Date: 6 Dec 90 04:28:02 GMT References: <105@avatar.avatar.com> <14648@smoke.brl.mil> Organization: Kory Hamzeh, Canoga Park, Ca, USA Lines: 31 In article <14648@smoke.brl.mil>, mike@BRL.MIL (Michael John Muuss ) writes: > > [ lots of good stuff about BRL-CAD deleted ] > > While not "super sophisticated", the load balancing algorithm is > non-trivial. It assigns pixel blocks of variable size. Three > assignments are outstanding to each worker at any time, to > pipeline against network delay. New assignment size is tuned, > based upon measured past performance (weighted average with variable > weighting, depending on circumstances). > > I'd certainly be interested in seeing a copy of your work. > Prt's load balancing is not as sophisticated as BRL-CAD's. Prt simply multiplexes the scanlines across the different machines. The slowest machine on the network will be the bottle neck. When I get a chance, I would like to use the same techniques used in BRL-CAD. I think that it is the best load balancing for a raytracer. --kory -- ------------------------------------------------------------------------------- Kory Hamzeh UUCP: avatar!kory or ..!uunet!avatar!kory INTERNET: kory@avatar.com Brought to you by Super Global Mega Corp .com