Cache Coherence on a Slotted Ring

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Cache Coherence on a Slotted Ring
-- The Express Ring is a new architecture under investigation at the University of Southern California. Its main goal is to demonstrate that a slotted unidirectional ring with very fast point-to-point interconnections can be at least ten times faster than a shared bus, using the same technology, and may be the topology of choice for future shared-memory multiprocessors. In this paper we introduce the Express Ring architecture and present a snooping cache coherence protocol for this machine. This protocol shows how consistency of shared memory accesses can be efficiently maintained in a ring-connected multiprocessor. We analyze the proposed protocol and compare it to other more usual alternatives for point-to-point connected machines, such as the SCI cache coherence protocol and directory based protocols.
Luiz André Barroso, Michel Dubois
Added 27 Aug 2010
Updated 27 Aug 2010
Type Conference
Year 1991
Where ICPP
Authors Luiz André Barroso, Michel Dubois
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