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Title:Performance Evaluation of Local Communications: A Case-study
Authors: S. R. Alam ; Roland Ibbett ; F. Mallet
Date:Nov 2003
Publication Title:Procs of IASTED International Conference on Parallel and Distributed Computing and Systems
Publication Type:Conference Paper
Page Nos:393-398
Wire densities of interconnection networks is a critical design consideration for Massively-Parallel Processing (MPP) supercomputers with tens of thousands of process ing nodes. In these MPPs, high-bandwidth parallel buses are increasingly replaced by high performance and reliable serial links, which allow increased network connectivity i.e., multiple communication ports per processing node. Nevertheless these bit-serial links are affected by channel errors. The re-transmission costs on these comparatively low-bandwidth networks can have a significant impact on the performance of an application code, particularly for al gorithms requiring frequent local communications. This research analyses the impact of communication buffer sizes and associated transmission protocols on off-node commu nication performance of an MPP system called QCDOC.
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Bibtex format
author = { S. R. Alam and Roland Ibbett and F. Mallet },
title = {Performance Evaluation of Local Communications: A Case-study},
book title = {Procs of IASTED International Conference on Parallel and Distributed Computing and Systems},
year = 2003,
month = {Nov},
pages = {393-398},

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