NDLI: Timeline scheduling for out-of-core ray batching

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Timeline scheduling for out-of-core ray batching

Content Provider	ACM Digital Library
Author	Son, Myungbae Yoon, Sung-Eui
Abstract	We present a timeline based scheduling method for Monte Carlo ray tracing of out-of-core models on distributed memory clusters. We abstract different setups of various compute and memory devices into a graph-based representation, and estimate the time for job execution and data transfer in a simple timing model. Our scheduler allocates not only jobs to processors, but also data transfers to memory channels. This approach allows us to control the I/O overload, which is the principal bottleneck in rendering massive-scale scenes. To manage dependencies of data transfers and data intensive jobs, each job and data transfer is arranged on the timeline with dependency relations. Based on this model, our scheduler aims to increase data locality by allocating a job that takes the least time to fetch required data on a given compute device. This goal is achieved by optimizing the data transfer path to maximize latency hiding effects. We have implemented a path tracer on our framework and tested massive models up to 500 M triangles. Compared to prior state-of-the-art scheduling techniques, our renderer achieved higher horizontal scalability on flexible device configurations.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISBN	9781450351010
DOI	10.1145/3105762.3105784
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2017-07-28
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Path tracing Out-of-core Hybrid Cluster
Content Type	Text
Resource Type	Article

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