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An efficient parallel ray tracing scheme for distributed memory parallel computers

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1 Author(s)
Lefer, W. ; Univ. des Sci. et des Technol. de LIlle, Villeneuve D''Ascq, France

The ray-tracing algorithm produces high quality images by taking multiple luminous effects into account. Hence, it requires many computations and a large memory capacity. The use of parallel machines is a solution in order to reduce significantly the synthesis time. Distributed Memory Parallel Computers offer an interesting performance/cost ratio but need to distribute computations and data. This paper is a study of the implementation of the ray-tracing algorithm on a Distributed Memory Parallel Computer. An original solution, based on the association of a data parallelism approach with a task parallelism one, is presented. A dynamic load redistribution mechanism allows us to ensure a good load balance during the synthesis phase. At the end of the paper, some results of our transputer implementation are presented

Published in:

Parallel Rendering Symposium, 1993

Date of Conference:

25-26 Oct 1993

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