Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Time Synchronized Measurements in Cluster Computing Systems

Published

Author(s)

Alan Mink, Robert J. Carpenter, M M. Courson

Abstract

We describe hardware time synchronization instrumentation that we have developed which achieves time synchronization of better than one microsecond. The purpose of this instrumentation is for Quality of Service characterization of parallel and distributed computing and of network communications. Using this instrumentation we measure the accuracy achieved by the NIST Autolock time synchronization algorithm, built upon the well-known Network Time Protocol (NTP) time exchange, and the various factors contributing to its performance for both local and remote computing clusters. We show that such software algorithms, once their parameters are tuned for the expected delays, can achieve accuracy close to single digit microseconds.
Conference Dates
August 1, 2000
Conference Title
International Society for Computers and Their Applications

Keywords

autolock cluster computing, GPS, multikron, NTP, time synchronization

Citation

Mink, A. , Carpenter, R. and Courson, M. (2000), Time Synchronized Measurements in Cluster Computing Systems, International Society for Computers and Their Applications, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=151472 (Accessed June 14, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created August 1, 2000, Updated February 17, 2017