A High-Level Interface of Xevolver for Composing Loop Transformations

Hiroyuki Takizawa (), Daichi Sato, Shoichi Hirasawa and Hiroaki Kobayashi
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Hiroyuki Takizawa: Tohoku University, Graduate School of Information Sciences
Daichi Sato: Tohoku University, Graduate School of Information Sciences
Shoichi Hirasawa: Tohoku University, Graduate School of Information Sciences
Hiroaki Kobayashi: Tohoku University, Cyberscience Center

A chapter in Sustained Simulation Performance 2015, 2015, pp 137-145 from Springer

Abstract: Abstract Xevolver is a code transformation framework under active development to help legacy application migration to extreme-scale computing systems. The framework originally assumes that transformation rules are written in XSLT, which might be too low-level for standard users to express their own rules. Hence, this article describes a high-level interface of the Xevolver framework, which offers an easy and declarative way to define a custom compiler directive associated with a composite of predefined loop transformation rules. Such a compiler directive can also be associated with text insertion and deletion. In the evaluation, 160 variants of a triple-nested loop required for empirical performance tuning can be generated mechanically by using the high-level interface.

Keywords: Loop Variant; Loop Optimization; Application Code; Abstract Syntax Tree; Loop Transformation (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-20340-9_11

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DOI: 10.1007/978-3-319-20340-9_11

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