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Conference Papers Year : 2001

Stingray: Cone Tracing using a software DSM for SCI clusters


In this paper we consider the use of a supercomputer with a hardware shared memory versus a cluster of workstations using a software Distributed Shared Mem-ory (DSM). We focus on ray tracing applications to compare both architectures. We have ported Stingray, a parallel cone tracer developed on a SGI Origin 2000 super-computer, on a cluster using a Scalable Coherent Interface (SCI) network and a software DSM called SciFS. We present concepts of cone tracing with Stingray, concepts of SCI cluster with a DSM and the implementa-tion issues. We compare the results obtained with the two architectures and we discuss the trade-off - price/performance/programming ease - of both architectures. We show with Stingray that a modest 12 nodes SCI cluster with an efficient software DSM is 5 times cheaper and can perform up to 2.3 times better than a SGI Origin 2000 with 6 processors. We think that a software DSM is well suited for this kind of applications and provides both ease of programming and scalable per-formance.
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inria-00537505 , version 1 (18-11-2010)



Alexandre Meyer, Emmanuel Cecchet. Stingray: Cone Tracing using a software DSM for SCI clusters. IEEE International Conference on Cluster Computing, Oct 2001, Newport Beach, United States. pp.95 - 101, ⟨10.1109/CLUSTR.2001.959957⟩. ⟨inria-00537505⟩
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