Relative Performance of Micro and Mainframe Computers,

Abstract

This article compares the relative performances of two typical operations research algorithms implemented on an IBM PC microcomputer and on a CDC Cyber 6400 mainframe computer. The basis of comparison is the computation time expressed in central proessing unit seconds. The first algorithm performs exclusively integer operations, while the second algorithm performs primarily real arithmetic and transcendental functions. For the integer algorithm the speed ratio is 2.14 or 2.65 depending on the accuracy of the PC, for the real algorithm the speed ratio is 3.6. In general, the speed ratio is approximately equal to 3 to 1, which is extremely favorable for the microcomputer, considering the relative cost of CPU time on each machine. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1984
Accession Number
ADA149281

Entities

People

  • M. Goetschalckx
  • Y. Bozer

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Cyber

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Computations
  • Computer Programming
  • Computer Programs
  • Computers
  • Dynamic Programming
  • Engineering
  • Mainframe Computers
  • Military Research
  • Numbers
  • Personal Computers
  • Real Numbers
  • Square Roots

Fields of Study

  • Computer science

Readers

  • Computer Science.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Linear Algebra

Technology Areas

  • Cyber
  • Cyber - Cryptography