Re: no parallel speed up ?
Brian Paul <[email protected]>
| Newsgroups | gmane.comp.graphics.chromium.user |
|---|---|
| Message-ID | <[email protected]> |
Smith, Ian wrote: > Hi, > > Apologies if this is a rather naive query but I'm extremely new to chromium ... > > I'm trying to see if I can use a Linux cluster to parallel rendering. I've > tried the atlantis application with crdemo.conf and crdemo_full.conf but > as far as I can see the full version with two tiles seems to produce the same > frame rate as the single tile version with crdemo.conf. I've got the crserver's > and the crappfaker running on separate nodes but the frame rate stays around > 10 fps. I'm I missing something here ? Is there are bottleneck somewhere ? > Are there any other demo's that can demonstrate an parallel speedup ??? You generally will only get a speed-up if you're doing sort-last compositing. In that case, each of your rendering nodes will render subset of the whole scene, then the partial renderings will be combined with Z or alpha compositing. Look at the binary swap examples. But even then, you won't get a speed-up until you reach the point at which the benefit from parallelism exceeds the cost of network transmission and compositing. -Brian ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/