Experimenting with a Shared Virtual Memory Environment for Hypercubes

Amit Agarwala, Chitaranjan Das

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

This paper describes the design and implementation of a shared virtual memory (SVM) system for the nCUBE 2 machine. The SVM system provides the user a single coherent address space across all nodes. It is implemented at the user level in a C programming environment using high level constructs to support data sharing. Shared variables are treated as objects rather than pages. We have improved upon an existing algorithm for maintaining coherency in the SVM system, thus achieving a reduction in the number of internode messages required in coherency maintenance. Detailed timing analysis is conducted to analyze the feasibility of this shared environment. Experimental results indicate that parallel programs running under an SVM system show linear speedup, suggesting that SVM systems could provide an effective programming environment for the next generation of distributed memory parallel computers. The bottleneck of this implementation is associated with the expensive interrupt handling capability of the nCUBE 2.

Original languageEnglish (US)
Pages (from-to)228-235
Number of pages8
JournalJournal of Parallel and Distributed Computing
Volume29
Issue number2
DOIs
StatePublished - Jan 1 1995

All Science Journal Classification (ASJC) codes

  • Software
  • Theoretical Computer Science
  • Hardware and Architecture
  • Computer Networks and Communications
  • Artificial Intelligence

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