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“Parallel Wavelet Radiosity”
Xavier Cavin, Laurent Alonso and Jean-Claude Paul
Proceedings of the Second Eurographics Workshop on Parallel Graphics and Visualisation , Rennes, France, 1998

Abstract: This paper presents parallel versions of a wavelet radiosity algorithm. Wavelet radiosity is based on a general framework of projection methods and wavelet theory. The resulting algorithm has a cost proportional to O(n) versus the O(n^2) complexity of the classical radiosity algorithms. However, designing a parallel wavelet radiosity is challenging because of its irregular and dynamic nature. Since explicit message passing approaches fail to deal with such applications, we have experimented various parallel implementations on a hardware ccNUMA architecture, the SGI Origin2000. Our experiments show that load balancing is a crucial performance issue to handle the dynamic distribution of work and communication, while we do make all reasonable efforts to exploit data locality efficiently. Our best results yield a speed-up of 24 with 36 processors, even when dealing with extremely complex models.

BibTex reference

   AUTHOR     = "Cavin, Xavier and Alonso, Laurent and Paul, Jean-Claude",
   TITLE      = "Parallel Wavelet Radiosity",
   BOOKTITLE  = "Proceedings of the Second Eurographics Workshop on Parallel Graphics 
                   and Visualisation , Rennes, France",
   YEAR       = "1998",
   EDITOR     = "Kadi Bouatouch, Alan Chalmers, Thierry Priol",
   PAGES      = "61-75",
   MONTH      = "sep",