Application-Specific Protocols for User-Level Shared Memory

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Application-Specific Protocols for User-Level Shared Memory (1994)

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by Babak Falsafi , Alvin R. Lebeck , Steven K. Reinhardt , Ioannis Schoinas , Mark D. Hill , James R. Larus , Anne Rogers , David A. Wood

Venue:	In Proceedings of Supercomputing '94
Citations:	94 - 27 self

BibTeX

@INPROCEEDINGS{Falsafi94application-specificprotocols,
    author = {Babak Falsafi and Alvin R. Lebeck and Steven K. Reinhardt and Ioannis Schoinas and Mark D. Hill and James R. Larus and Anne Rogers and David A. Wood},
    title = {Application-Specific Protocols for User-Level Shared Memory},
    booktitle = {In Proceedings of Supercomputing '94},
    year = {1994},
    pages = {380--389}
}

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Abstract

Recent distributed shared memory (DSM) systems and proposed shared-memory machines have implemented some or all of their cache coherence protocols in software. One way to exploit the flexibility of this software is to tailor a coherence protocol to match an application's communication patterns and memory semantics. This paper presents evidence that this approach can lead to large performance improvements. It shows that application-specific protocols substantially improved the performance of three application programs---appbt, em3d, and barnes---over carefully tuned transparent shared memory implementations. The speed-ups were obtained on Blizzard, a fine-grained DSM system running on a 32-node Thinking Machines CM-5. 1 Introduction A shared address space is central to many parallel languages and models of parallel computation. It provides the global names for data that enable a proces- This work is supported in part by NSF PYI/NYI Awards MIP-8957278, CCR-9157366, and CCR-9357779,...

Keyphrases

application-specific protocol user-level shared memory nsf pyi nyi award mip-8957278 fine-grained dsm system coherence protocol memory semantics memory implementation proposed shared-memory machine parallel computation shared memory application program 32-node thinking machine cm-5 communication pattern cache coherence protocol global name many parallel language large performance improvement address space