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Efficient Strategies for Software-Only Directory Protocols in Shared-Memory Multiprocessors
Ansvarlig organisasjon
1995 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert) Published
Abstract [en]

The cost, complexity, and inflexibility of hardware-based directory protocols motivate us to study the performance implications of protocols that emulate directory management using software handlers executed on the compute processors. An important performance limitation of such software-only protocols is that software latency associated with directory management ends up on the critical memory access path for read miss transactions. We propose five strategies that support efficient data transfers in hardware whereas directory management is handled at a slower pace in the background by software handlers. Simulations show that this approach can remove the directory-management latency from the memory access path. Whereas the directory is managed in software, the hardware mechanisms must access the memory state in order to enable data transfers at a high speed. Overall, our strategies reach between 60% and 86% of the hardware-based protocol performance.

sted, utgiver, år, opplag, sider
Santa Margherita Ligure; Italy: IEEE Computer Society Press , 1995.
Emneord [en]
Network protocols, Distributed computer systems, Computational complexity, Data handling, Critical path analysis, Computer software, Data transfer, Buffer storage, Program processors
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-9653Lokal ID: oai:bth.se:forskinfoB288A861CD5FA308C12568A3002CAB55ISBN: 0-89791-698-0 (hft.) 0-7803-3000-5 (inb.) 0-7803-3001-3 (mikrofiche) (tryckt)OAI: oai:DiVA.org:bth-9653DiVA, id: diva2:837556
Konferanse
22nd Annual International Symposium on Computer Architecture
Tilgjengelig fra: 2012-09-18 Laget: 2000-03-15 Sist oppdatert: 2018-02-02bibliografisk kontrollert

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Totalt: 129 treff
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