Accession Number:

ADA637068

Title:

A Model for Speedup of Parallel Programs

Descriptive Note:

Technical rept.

Corporate Author:

CALIFORNIA UNIV BERKELEY COMPUTER SCIENCE DIV

Personal Author(s):

Report Date:

1997-01-01

Pagination or Media Count:

12.0

Abstract:

We propose a new model for parallel speedup that is based on two parameters, the average parallelism of a program and its variance in parallelism. We present a way to use the model to estimate these program characteristics using only observed speedup curves as opposed to the more detailed program knowledge otherwise required. We apply this method to speedup curves from real programs on a variety of architectures and show that the model fits the observed data well. We propose several applications for the model, including the selection of cluster sizes for parallel jobs.

Subject Categories:

  • Operations Research
  • Computer Programming and Software
  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE