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Ookami: Deployment and Initial Experiences

Conference · · Practice and Experience in Advanced Research Computing
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  1. Stony Brook Univ., NY (United States); Stony Brook University
  2. Stony Brook Univ., NY (United States)
  3. Univ. at Buffalo, NY (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
+ Show Author Affiliations

Ookami [3] is a computer technology testbed supported by the United States National Science Foundation. It provides researchers with access to the A64FX processor developed by Fujitsu [17] in collaboration with RIKΞN [35, 37] for the Japanese path to exascale computing, as deployed in Fugaku [36], the fastest computer in the world [34]. By focusing on crucial architectural details, the ARM-based, multi-core, 512-bit SIMD-vector processor with ultrahigh-bandwidth memory promises to retain familiar and successful programming models while achieving very high performance for a wide range of applications. Here, we review relevant technology and system details, and the main body of the paper focuses on initial experiences with the hardware and software ecosystem for micro-benchmarks, mini-apps, and full applications, and starts to answer questions about where such technologies fit into the NSF ecosystem.

Research Organization:
Stony Brook Univ., NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-87ER40317; AC05-00OR22725
OSTI ID:
1907882
Journal Information:
Practice and Experience in Advanced Research Computing, Journal Name: Practice and Experience in Advanced Research Computing
Country of Publication:
United States
Language:
English

References (7)

On Validating an Astrophysical Simulation Code journal November 2002
More bang for your buck: Improved use of GPU nodes for GROMACS 2018 journal July 2019
FLASH: An Adaptive Mesh Hydrodynamics Code for Modeling Astrophysical Thermonuclear Flashes journal November 2000
A performance analysis of the first generation of HPC‐optimized Arm processors journal February 2019
Introducing OpenSHMEM: SHMEM for the PGAS community conference January 2010
TYPE Iax SUPERNOVAE: A NEW CLASS OF STELLAR EXPLOSION journal March 2013
Open XDMoD: A Tool for the Comprehensive Management of High-Performance Computing Resources journal July 2015

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
97 MATHEMATICS AND COMPUTING
computer systems
exascale
high-performance computing