Check out the new USENIX Web site.

Unix File Access and Caching in a Multicomputer Environment


Paul J. Roy

Open Software Foundation

Abstract

This paper describes the Unix file access and caching mechanisms in a version of the OSF/1 Unix operating system designed to run in a multicomputer environment. The multicomputer hardware platforms targeted can consist of hundreds or even thousands of individual nodes, where each node consists of one or more processors.

The multicomputer version of OSF/1 (called OSF/1 AD) uses Mach memory objects to cache data from Unix files, and relies on an in-kernel distributed shared memory implementation to maintain coherency.


Download the full text of this paper in POSTSCRIPT form (218,828 bytes).

To Become a USENIX Member, please see our Membership Information.