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Title: Are we witnessing the spectre of an HPC meltdown?: Are We Witnessing the Spectre of an HPC Meltdown?

Abstract

In this study, we measure and analyze the performance observed when running applications and benchmarks before and after the Meltdown and Spectre fixes have been applied to the Cray supercomputers and supporting systems at the Oak Ridge Leadership Computing Facility (OLCF). Of particular interest is the effect of these fixes on applications selected from the OLCF portfolio when running at scale. This comprehensive study presents results from experiments run on Titan, Eos, Cumulus, and Percival supercomputers at the OLCF. Lastly, the results from this study are useful for HPC users running on Cray supercomputers and serve to better understand the impact that these two vulnerabilities have on diverse HPC workloads at scale.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Org.:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21)
OSTI Identifier:
1488719
Alternate Identifier(s):
OSTI ID: 1479559
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Concurrency and Computation. Practice and Experience
Additional Journal Information:
Journal Volume: 31; Journal Issue: 16; Journal ID: ISSN 1532-0626
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; high performance computing; meltdown; performance analysis; security vulnerabilities; spectre

Citation Formats

Melesse Vergara, Veronica G., Brim, Michael J., Joubert, Wayne, Boehm, Swen, Baker, Matthew B., Hernandez, Oscar R., Oral, Sarp, Simmons, James A., and Maxwell, Don E. Are we witnessing the spectre of an HPC meltdown?: Are We Witnessing the Spectre of an HPC Meltdown?. United States: N. p., 2018. Web. doi:10.1002/cpe.5020.
Melesse Vergara, Veronica G., Brim, Michael J., Joubert, Wayne, Boehm, Swen, Baker, Matthew B., Hernandez, Oscar R., Oral, Sarp, Simmons, James A., & Maxwell, Don E. Are we witnessing the spectre of an HPC meltdown?: Are We Witnessing the Spectre of an HPC Meltdown?. United States. doi:10.1002/cpe.5020.
Melesse Vergara, Veronica G., Brim, Michael J., Joubert, Wayne, Boehm, Swen, Baker, Matthew B., Hernandez, Oscar R., Oral, Sarp, Simmons, James A., and Maxwell, Don E. Tue . "Are we witnessing the spectre of an HPC meltdown?: Are We Witnessing the Spectre of an HPC Meltdown?". United States. doi:10.1002/cpe.5020. https://www.osti.gov/servlets/purl/1488719.
@article{osti_1488719,
title = {Are we witnessing the spectre of an HPC meltdown?: Are We Witnessing the Spectre of an HPC Meltdown?},
author = {Melesse Vergara, Veronica G. and Brim, Michael J. and Joubert, Wayne and Boehm, Swen and Baker, Matthew B. and Hernandez, Oscar R. and Oral, Sarp and Simmons, James A. and Maxwell, Don E.},
abstractNote = {In this study, we measure and analyze the performance observed when running applications and benchmarks before and after the Meltdown and Spectre fixes have been applied to the Cray supercomputers and supporting systems at the Oak Ridge Leadership Computing Facility (OLCF). Of particular interest is the effect of these fixes on applications selected from the OLCF portfolio when running at scale. This comprehensive study presents results from experiments run on Titan, Eos, Cumulus, and Percival supercomputers at the OLCF. Lastly, the results from this study are useful for HPC users running on Cray supercomputers and serve to better understand the impact that these two vulnerabilities have on diverse HPC workloads at scale.},
doi = {10.1002/cpe.5020},
journal = {Concurrency and Computation. Practice and Experience},
number = 16,
volume = 31,
place = {United States},
year = {2018},
month = {10}
}

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Figures / Tables:

Table I Table I: Spectre and Meltdown Impact on Cray Architectures

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Works referenced in this record:

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.