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Integrated range comparison for data-parallel compilation systems

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3 Author(s)
Xian-He Sun ; Dept. of Comput. Sci., Louisiana State Univ., Baton Rouge, LA, USA ; M. Pantano ; T. Fahringer

A major difficulty in restructuring compilation, and in parallel programming in general, is how to compare parallel performance over a range of system and problem sizes. Execution time varies with system and problem size and an initially fast implementation may become slow when system and problem size scale up. This paper introduces the concept of range comparison. Unlike conventional execution time comparison in which performance is compared for a particular system and problem size, range comparison compares the performance of programs over a range of ensemble and problem sizes via scalability and performance crossing point analysis. A novel algorithm is developed to predict the crossing point automatically. The correctness of the algorithm is proven and a methodology is developed to integrate range comparison into restructuring compilations for data-parallel programming. A preliminary prototype of the methodology is implemented and tested under Vienna Fortran Compilation System. Experimental results demonstrate that range comparison is feasible and effective. It is an important asset for program evaluation, restructuring compilation, and parallel programming

Published in:

IEEE Transactions on Parallel and Distributed Systems  (Volume:10 ,  Issue: 5 )