The UTFLA: uniformization of non-uniform iteration spaces in two-level perfect nested loops using SFLA.

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Title:	The UTFLA: uniformization of non-uniform iteration spaces in two-level perfect nested loops using SFLA.
Authors:	Mahjoub, Shabnam¹ shabnam.mahjoub@yahoo.com, Vojoudi, Hakimeh¹
Source:	Journal of Supercomputing. Jun2016, Vol. 72 Issue 6, p2221-2234. 14p.
Subjects:	Non-uniform memory access, Parallelizing compilers, Loops (Group theory), Computer software execution, Algorithms
Abstract:	One of the factors increasing the execution time of computational programs is the loops, and parallelization of the loops is used to decrease this time. One of the steps of parallelizing compilers is uniformization of non-uniform loops in wavefront method which is considered as a NP-hard problem. In this paper, a new method has been presented to make uniform the non-uniform two-level perfect nested loops using the frog-leaping algorithm, called UTFLA, which is a combination of deterministic and stochastic methods, because the challenge most of loop paralleling methods, old or dynamic or new ones, face is the high algorithm execution time. UTFLA has been designed in a way to find the best results with the lowest amount of basic dependency cone size in the minimum possible time and gives more appropriate results in a more reasonable time compared to other methods. [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

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Abstract:	One of the factors increasing the execution time of computational programs is the loops, and parallelization of the loops is used to decrease this time. One of the steps of parallelizing compilers is uniformization of non-uniform loops in wavefront method which is considered as a NP-hard problem. In this paper, a new method has been presented to make uniform the non-uniform two-level perfect nested loops using the frog-leaping algorithm, called UTFLA, which is a combination of deterministic and stochastic methods, because the challenge most of loop paralleling methods, old or dynamic or new ones, face is the high algorithm execution time. UTFLA has been designed in a way to find the best results with the lowest amount of basic dependency cone size in the minimum possible time and gives more appropriate results in a more reasonable time compared to other methods. [ABSTRACT FROM AUTHOR]
ISSN:	09208542
DOI:	10.1007/s11227-016-1725-8