The Improved GP 2 Compiler
Abstract
GP 2 is a rule-based programming language based on graph transformation rules which aims to facilitate program analysis and verification. Writing efficient programs in such a language is challenging because graph matching is expensive. GP 2 addresses this problem by providing rooted rules which, under mild conditions, can be matched in constant time. Recently, we implemented a number of changes to Bak's GP 2-to-C compiler in order to speed up graph programs. One key improvement is a new data structure for dynamic arrays called BigArray. This is an array of pointers to arrays of entries, successively doubling in size. To demonstrate the speed-up achievable with the new implementation, we present a reduction program for recognising binary DAGs which previously ran in quadratic time but now runs in linear time when compiled with the new compiler.
Cite
@article{arxiv.2010.03993,
title = {The Improved GP 2 Compiler},
author = {Graham Campbell and Jack Romo and Detlef Plump},
journal= {arXiv preprint arXiv:2010.03993},
year = {2021}
}
Comments
11 pages, 2020. arXiv admin note: substantial text overlap with arXiv:2002.02914