Task parallelism for ray tracing on a gpu cluster

Date

2008

Author

Ünlü, Çağlar

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Ray tracing is a computationally complex global illumination algorithm that is used for producing realistic images. In addition to parallel implementations on commodity PC clusters, recently, Graphics Processing Units (GPU) have also been used to accelerate ray tracing. In this thesis, ray tracing is accelerated on a GPU cluster where the viewing plane is divided into unit tiles. Slave processes work on these tiles in a task parallel manner which are dynamically assigned to them. To decrease the number of ray-triangle intersection tests, Bounding Volume Hierarchies (BVH) are used. It is shown that almost linear speedup can be achieved. On the other hand, it is observed that API and network overheads are obstacles for scalability.

Subject Keywords

Computer enginnering., Ray tracing.

URI

http://etd.lib.metu.edu.tr/upload/12609325/index.pdf
https://hdl.handle.net/11511/17546

Collections

Graduate School of Natural and Applied Sciences, Thesis