Omnia vincit amor
Home -> Publications
Home
  Publications
    
edited volumes
  Awards
  Research
  Teaching
  BLOG
  Miscellaneous
  Full CV [pdf]
  blog






  Events








  Past Events





Publications of Torsten Hoefler
Maciej Besta, M. Podstawski, L. Groner, Edgar Solomonik, Torsten Hoefler:

 To Push or To Pull: On Reducing Communication and Synchronization in Graph Computations

(In Proceedings of the 26th International Symposium on High-Performance Parallel and Distributed Computing (HPDC'17), presented in Washington, DC, USA, ACM, Jun. 2017)

Abstract

We reduce the cost of communication and synchronization in graph processing by analyzing the fastest way to process graphs: pushing the updates to a shared state or pulling the updates to a private state. We investigate the applicability of this push-pull dichotomy to various algorithms and its impact on complexity, performance, and the amount of used locks, atomics, and reads/writes. We consider 11 graph algorithms, 3 programming models, 2 graph abstractions, and various families of graphs. The conducted analysis illustrates surprising differences between push and pull variants of different algorithms in performance, speed of convergence, and code complexity; the insights are backed up by performance data from hardware counters. We use these findings to illustrate which variant is faster for each algorithm and to develop generic strategies that enable even higher speedups. Our insights can be used to accelerate graph processing engines or libraries on both massively-parallel shared-memory machines as well as distributed-memory systems.

Documents

download article:
download slides:


Recorded talk (best effort)

 

BibTeX

@inproceedings{pushpull,
  author={Maciej Besta and M. Podstawski and L. Groner and Edgar Solomonik and Torsten Hoefler},
  title={{To Push or To Pull: On Reducing Communication and Synchronization in Graph Computations}},
  year={2017},
  month={Jun.},
  booktitle={Proceedings of the 26th International Symposium on High-Performance Parallel and Distributed Computing (HPDC'17)},
  location={Washington, DC, USA},
  publisher={ACM},
  source={http://www.unixer.de/~htor/publications/},
}


serving: 3.216.79.60:41156© Torsten Hoefler