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Study on multi-dimensional time series data analysis

JAXA Supercomputer System Annual Report April 2019-March 2020

Report Number: R19EDA201N04

Subject Category: Aeronautical Technology

PDF available here

  • Responsible Representative: Takashi Aoyama, Aeronautical Technology Directorate, Numerical Simulation Research Unit
  • Contact Information: Aeronautical Technology Directorate, Numerical Simulation Research Unit(ohmichi.yuya@jaxa.jp)
  • Members: Yuya Ohmichi, Keita Nakamoto, Mami Hayakawa, Kento Yamada

Abstract

Knowledge extraction techniques for large datasets are important because the computers and numerical simulation techniques have been highly developed and they produced huge datasets. In this study, we have been developing knowledge extraction tools which extract patterns from large data sets obtained by unsteady fluid simulations.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

To perform feature extraction analysis utilizing the large scale memory of LM node, and massively parallel analysis using MA nodes.

Achievements of the Year

Using the developed knowledge extraction tool, we extracted several dominant structures existing in the compressible flow field around a sphere. In addition, instability phenomenon on the three-dimensional cavity tone phenomenon was clarified.

Publications

N/A

Usage of JSS2

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: OpenMP
  • Number of Processes: 1 – 512
  • Elapsed Time per Case: 10 Hour(s)

Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.24

 

Details

Please refer to System Configuration of JSS2 for the system configuration and major specifications of JSS2.

Computational Resources
System Name Amount of Core Time
(core x hours)
Fraction of Usage*2(%)
SORA-MA 2,119,501.16 0.26
SORA-PP 1,860.24 0.01
SORA-LM 1,456.44 0.61
SORA-TPP 0.00 0.00

 

File System Resources
File System Name Storage Assigned
(GiB)
Fraction of Usage*2(%)
/home 465.48 0.39
/data 11,974.52 0.20
/ltmp 1,906.62 0.16

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 7.04 0.18

*1: Fraction of Usage in Total Resources: Weighted average of three resource types (Computing, File System, and Archiver).

*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.

JAXA Supercomputer System Annual Report April 2019-March 2020