Vectorization techniques for prolog

  • Authors:
  • Yasusi Kanada;K. Kojima;M. Sugaya

  • Affiliations:
  • Central Research Laboratory, Hitachi Ltd., Tokyo, Japan;Central Research Laboratory, Hitachi Ltd., Tokyo, Japan;Central Research Laboratory, Hitachi Ltd., Tokyo, Japan

  • Venue:
  • ICS '88 Proceedings of the 2nd international conference on Supercomputing
  • Year:
  • 1988

Quantified Score

Hi-index 0.00

Visualization

Abstract

Several techniques for running Prolog programs on pipelined vector processors, such as the Hitachi S-820 or the Cray-2, are developed. This paper presents an automatic program transformation (vectorization) method of Prolog, which enables a type of or-parallel execution of Prolog programs using vector operations. Performance is evaluated on the Hitachi S-810 using the Eight-Queens problem. Its vector execution speed is 4.5 MLIPS (18 ms). This is eight or nine times faster than scalar execution. This result confirms the effectiveness of vectorization techniques and applicability of vector processors to Prolog execution and to symbol processing applications.