Role of numerical noise in ultra large-scale computing

M. L. Hastriter, Weng Cho Chew

Research output: Contribution to journalConference articlepeer-review


The role of numerical noise in ultra large-scale computing is discussed. The numerical noise is proportional to the number of floating point operations that has been performed. It is found that the accumulation of numerical noise is sensitive to the consistency of the definition of the velocity of light. It is expected that subtraction error can play a significant role in a system where a system is ill conditioned or involves subtracting large numbers to obtain small numbers.

Original languageEnglish (US)
Pages (from-to)3373-3376
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
StatePublished - Sep 28 2004
EventIEEE Antennas and Propagation Society Symposium 2004 Digest held in Conjunction with: USNC/URSI National Radio Science Meeting - Monterey, CA, United States
Duration: Jun 20 2004Jun 25 2004

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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