Repository of GraphRay project, to appear on LDAV 2017 proceedings.
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graphray-common
graphray-core
graphray-utils
LICENSE
pom.xml
readme.md

readme.md

GraphRay

GraphRay is a distributed algorithm to compute the Pathfinder network of a graph G with fixed parameters r = infinite and q = n-1. It is implemented on Giraph and requires Maven to compile. It is described in our paper.

@inproceedings{arleo17graphray,
    title={{GraphRay: Distributed Pathfinder Network Scaling}},
    author={Arleo, Alessio and Kwon, Oh-Hyun and Ma, Kwan-Liu},
    booktitle={IEEE Symposium on Large Data Analysis and Visualization},
    year={2017}
}

Usage

This is an example of script to use to launch the Giraph job:

yarn jar /path/to/graphray-core-0.0.1-SNAPSHOT-jar-with-dependencies.jar org.apache.giraph.GiraphRunner \
	com.graphray.GraphRaySetup \
	 -mc com.graphray.masters.GraphRayMasterCompute \
	 -eif com.graphray.common.io.GraphRayEdgeInputFormat \
	 -eip /path/to/input/file/on/hdfs \
	 -eof com.graphray.common.io.GraphRayEdgeOutputFormat \
	 -op /path/to/output/folder/on/hdfs \
	 -ca giraph.SplitMasterWorker=false \
     -w {no of workers}

Input Format

GraphRay input and output format is pretty simple. Each line represents a single edge with this structure:

[source ID] [target ID] [weight]

Bear in mind that GraphRay accepts undirected networks.

Options

Option Meaning Type Default
graphray.enableLogging Enables verbose logging on syslog output. Debug use only boolean false

License