Runtime Support and Compilation Methods for User-Specified Data Distributions

Abstract

This paper describes two new ideas by which an HPF compiler can deal with irregular computations effectively. The first mechanism invokes a user specified mapping procedure via a set of compiler directives. The directives allow use of program arrays to describe graph connectivity, spatial location of array elements and computational load. The second mechanism is a simple conservative method that in many cases enables a compiler to recognize that it is possible to reuse previously computed information from inspectors (e.g. communication schedules, loop iteration partitions, information that associates off-processor data copies with on-processor buffer locations). We present performance results for these mechanisms from a Fortran 90D compiler implementation.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1993
Accession Number
ADA276326

Entities

People

  • Alok Choudhury
  • Geoffrey Fox
  • Joel Saltz
  • Ravi Ponnusamy
  • Yuan- Shin Hwang

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Reactions
  • Computational Fluid Dynamics
  • Computer Programming
  • Decomposition
  • Demographic Cohorts
  • Differential Equations
  • Directives
  • Equations
  • Fluid Dynamics
  • Geometry
  • Heuristic Methods
  • Language
  • Molecular Dynamics
  • Molecular Mechanics Methods
  • Simulations
  • Three Dimensional
  • Universities

Fields of Study

  • Computer science

Readers

  • Computer Science.
  • Parallel and Distributed Computing.