Compiler Techniques for Determining Data Distribution and Generating Communication Sets on Distributed-Memory Machines

  • Authors:
  • PeiZong Lee;Wen-Yao Chen

  • Affiliations:
  • -;-

  • Venue:
  • HICSS '96 Proceedings of the 29th Hawaii International Conference on System Sciences Volume 1: Software Technology and Architecture
  • Year:
  • 1996

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Abstract

This paper is concerned with designing efficient algorithms for determining data distribution and generating communication sets on distributed memory multicomputers. First, we propose a dynamic programming algorithm to automatically determine data distribution at compiling time. The proposed algorithm also can determine whether data redistribution is necessary between two consecutive DO-loop program fragments. Second, we propose closed forms to represent communication sets among processing elements for executing doall statements, when data arrays are distributed in a restricted block-cyclic fashion. Our methods can be included in current compilers and used when programmers fail to provide any data distribution directives. Experimental studies on a nCUBE-2 multicomputer are also presented.