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Grafs: declarative graph analytics

Published: 19 August 2021 Publication History

Abstract

Graph analytics elicits insights from large graphs to inform critical decisions for business, safety and security. Several large-scale graph processing frameworks feature efficient runtime systems; however, they often provide programming models that are low-level and subtly different from each other. Therefore, end users can find implementation and specially optimization of graph analytics error-prone and time-consuming. This paper regards the abstract interface of the graph processing frameworks as the instruction set for graph analytics, and presents Grafs, a high-level declarative specification language for graph analytics and a synthesizer that automatically generates efficient code for five high-performance graph processing frameworks. It features novel semantics-preserving fusion transformations that optimize the specifications and reduce them to three primitives: reduction over paths, mapping over vertices and reduction over vertices. Reductions over paths are commonly calculated based on push or pull models that iteratively apply kernel functions at the vertices. This paper presents conditions, parametric in terms of the kernel functions, for the correctness and termination of the iterative models, and uses these conditions as specifications to automatically synthesize the kernel functions. Experimental results show that the generated code matches or outperforms handwritten code, and that fusion accelerates execution.

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  • (2024)StarPlat: A Versatile DSL for Graph AnalyticsJournal of Parallel and Distributed Computing10.1016/j.jpdc.2024.104967(104967)Online publication date: Aug-2024

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cover image Proceedings of the ACM on Programming Languages
Proceedings of the ACM on Programming Languages  Volume 5, Issue ICFP
August 2021
1011 pages
EISSN:2475-1421
DOI:10.1145/3482883
Issue’s Table of Contents
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Published: 19 August 2021
Published in PACMPL Volume 5, Issue ICFP

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  • (2024)StarPlat: A Versatile DSL for Graph AnalyticsJournal of Parallel and Distributed Computing10.1016/j.jpdc.2024.104967(104967)Online publication date: Aug-2024

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