Topology-aware distributed graph processing for tightly-coupled clusters
Bhatt, Mayank
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https://hdl.handle.net/2142/101213
Description
Title
Topology-aware distributed graph processing for tightly-coupled clusters
Author(s)
Bhatt, Mayank
Issue Date
2018-04-24
Director of Research (if dissertation) or Advisor (if thesis)
Gupta, Indranil
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
graph processing
supercomputers
topology
Abstract
Cloud applications have burgeoned over the last few years, but they are typically written for loosely-coupled clusters such as datacenters. In this thesis we investigate how one can run cloud applications in tightly-coupled clusters and network topologies, namely super-computers. Specifically, we look at a class of distributed machine learning systems called distributed graph processing systems, and run them on NCSA Blue Waters. Partitioning the graph is key to achieving performance in distributed graph processing systems. We present new topology-aware partitioning techniques that better exploit the structure of the network topologies in supercomputers. Compared to existing work, our new Restricted Oblivious and Grid Centroid partitioning approaches produce 25-33% improvement in makespan, along with a sizable reduction in network traffic. We also discuss optimizations such as smart network buffers that further amplify the improvement. To help operators select the best graph partitioning technique, we culminate our experimental results into a decision tree.
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