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1993
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Integrating Message-Passing and Shared-Memory: Early Experience

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Integrating Message-Passing and Shared-Memory: Early Experience
This paper discusses some of the issues involved in implementing a shared-address space programming model on large-scale, distributed-memory multiprocessors. While such a programming model can be implemented on both shared-memory and messagepassing architectures, we argue that the transparent, coherent caching of global data provided by many shared-memory architectures is of crucial importance. Because message-passing mechanisms are much more efficient than shared-memory loads and stores for certain types of interprocessor communication and synchronization operations, however, we argue for building multiprocessors that efficiently support both shared-memory and message-passing mechanisms. We describe an architecture, Alewife, that integrates support for shared-memory and message-passing through a simple interface; we expect the compiler and runtime system to cooperate in using appropriate hardware mechanisms that are most efficient for specific operations. We report on both integr...
David A. Kranz, Kirk L. Johnson, Anant Agarwal, Jo
Added 10 Aug 2010
Updated 10 Aug 2010
Type Conference
Year 1993
Where PPOPP
Authors David A. Kranz, Kirk L. Johnson, Anant Agarwal, John Kubiatowicz, Beng-Hong Lim
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