Reducing the Replacement Overhead on COMA Protocols for Workstation-Based Architectures

Authors:
Diego R. Llanos Ferraris;Benjamín Sahelices Fernández;Agustín De Dios Hernández
Affiliations:
-;-;-
Venue:
Euro-Par '00 Proceedings from the 6th International Euro-Par Conference on Parallel Processing
Year:
2000

Citing 5
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Abstract

In this paper we discuss the behavior of the replacement mechanism of well-known COMA protocols applied to a loosely-coupled multicomputer system sharing a common bus. We also present VSR-COMA, a COMA protocol that uses an advanced replacement mechanism in order to select the destination node of a replacement transaction without introducing penalties due to the increase of the network traffic. Our comparative study of the behavior of different replacement mechanisms in the execution of Splash-2 programs confirm the effectiveness of the VSR-COMA protocol for this kind of systems.