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Title: Bringing minimal routing back to HPC through silicon photonics: a study of "flexfly" architectures with the structural simulation toolkit (SST)

Abstract

In system-level interconnects for high-performance computing (HPC), low-diameter hierarchical topologies like dragonfly are gaining in popularity. The topologies require adaptive routing schemes for high performance, but using non-minimal paths can stress the long-distance inter-group links that are the most expensive and scarce network resource. Here, we introduce "Flexfly" network design incorporating optical switches that steers bandwidth onto minimal paths instead of diverting packets, alleviating contention. Performance results and the simulation methodology using the Structural Simulation Toolkit (SST) are introduced.

Authors:
 [1]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1478222
Alternate Identifier(s):
OSTI ID: 1478328
Report Number(s):
SAND-2017-3555J
Journal ID: ISSN 0000-2002; ISBN 978-1-4503-5226-0; 652256
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
International Conference Proceedings Series (ICPS)
Additional Journal Information:
Journal Name: International Conference Proceedings Series (ICPS); Journal Volume: 2017; Conference: AISTECS '17 Proceedings of the 2nd International Workshop on Advanced Interconnect Solutions and Technologies for Emerging Computing Systems , Stockholm (Sweden), 25 Jan 2017; Journal ID: ISSN 0000-2002
Publisher:
ACM Press
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Wilke, Jeremiah. Bringing minimal routing back to HPC through silicon photonics: a study of "flexfly" architectures with the structural simulation toolkit (SST). United States: N. p., 2017. Web. doi:10.1145/3073763.3073775.
Wilke, Jeremiah. Bringing minimal routing back to HPC through silicon photonics: a study of "flexfly" architectures with the structural simulation toolkit (SST). United States. doi:10.1145/3073763.3073775.
Wilke, Jeremiah. Wed . "Bringing minimal routing back to HPC through silicon photonics: a study of "flexfly" architectures with the structural simulation toolkit (SST)". United States. doi:10.1145/3073763.3073775. https://www.osti.gov/servlets/purl/1478222.
@article{osti_1478222,
title = {Bringing minimal routing back to HPC through silicon photonics: a study of "flexfly" architectures with the structural simulation toolkit (SST)},
author = {Wilke, Jeremiah},
abstractNote = {In system-level interconnects for high-performance computing (HPC), low-diameter hierarchical topologies like dragonfly are gaining in popularity. The topologies require adaptive routing schemes for high performance, but using non-minimal paths can stress the long-distance inter-group links that are the most expensive and scarce network resource. Here, we introduce "Flexfly" network design incorporating optical switches that steers bandwidth onto minimal paths instead of diverting packets, alleviating contention. Performance results and the simulation methodology using the Structural Simulation Toolkit (SST) are introduced.},
doi = {10.1145/3073763.3073775},
journal = {International Conference Proceedings Series (ICPS)},
number = ,
volume = 2017,
place = {United States},
year = {2017},
month = {1}
}

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