Minimizing the Data Transfer in Evaluating an Expression in a Distributed-Memory Parallel-Processing System

Hiroshi OHTA, Kousuke SAKODA, Koichiro ISHIHARA

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Summary :

In a distributed-memory parallel-processing system, the overhead of data transfer among the processors is so large that it is important to reduce the data transfer. We consider the data transfer in evaluating an expression consisting of data distributed among the processors. We propose some algorithms which assign the operators in the expression to the processors so as to minimize the number or the cost of data transfers, on the condition that the data allocation to the processors is given. The basic algorithm is given at first, followed by some variations.

Publication
IEICE TRANSACTIONS on Information Vol.E77-D No.3 pp.288-298
Publication Date
1994/03/25
Publicized
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DOI
Type of Manuscript
PAPER
Category
Computer Systems

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