On Thu, Feb 14, 2002 at 10:22:39PM +0800, Benj wrote (wyy sez): > On Wed, Feb 13, 2002 at 11:49:41AM +0800, Horatio B. Bogbindero wrote: > > On Wed, Feb 13, 2002 at 09:59:00AM +0800, Benj wrote (wyy sez): > > > However, there are commercial rendering software packages available > > > that distributes the rendering tasks to multiple machines. My > > > own question is would a cluster of, say, 10 machines render 10 > > > scenes faster than would 10 machines managed by a commercical > > > render manager rendering the same number of scenes? The difference > > > between the two, as you know, is that the cluster combines the cpu > > > power of the 10 machines while the render manager distributes the > > > 10 scenes evenly to the 10 render machines which renders separately. > > > Both groups of machines have the same specs, btw. > > > > > ??? the cluster does what the render manager is doing with lesser > > over head. meaning... when a cluster renders images it chops up the > > images into ity-bity pieces and farms it out. the benefit of a > > cluster setup is that it has less overhead. the beowulf cluster does > > not combine CPU or computing resources together it still farms > > out processes. > > If 1 scene is passed to the cluster of 10 machines, won't the whole > cluster work on it with 10 machines simultaneously rendering the > single scene? > that 1 scene is further divide into smaller scenes that are then farmed out into the cluster. cluster computing for rendering typically use a divide and conquer strategy to parallel computing. > I thought a cluster can do this, acting as a supercomputer from the > combined cpu power of the separate machines. Hmmm, maybe I hit on a > common misconception. > it may just be just be a semantic problem. it is true that commercial render farms divide a movie into different scenes and each scene is farmed out into a cluster. in the case of cluster computing based rendering tools such as povray, it also essentially does the same thing. but, typically in povray a single scene can be further divided into smaller sub-scene for farming out. -------------------------------------- William Emmanuel S. Yu Ateneo Cervini-Eliazo Networks (ACENT) email : wyy at admu dot edu dot ph web : http://CNG.ateneo.net/wyu/ phone : 63(2)4266001-4186 GPG : http://CNG.ateneo.net/wyu/wyy.pgp War spares not the brave, but the cowardly. -- Anacreon
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