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Construction and maintenance of JIANT, a quality engineering tool for Safety&MissionAssurance platform

JAXA Supercomputer System Annual Report February 2021-January 2022

Report Number: R21EH2900

Subject Category: Common Business

PDF available here

  • Responsible Representative: Yuji Kado, Manager, Safety and Mission Assurance Department
  • Contact Information: Kado, Yuji, JAXA Safety and Mission Assurance Department(kado.yuji@jaxa.jp)
  • Members: Youichi Iiyama, Yuji Kado, Takafumi Nakagawa, Tokikatsu Namba, Atsuo Takino, Chihiro Uematsu

Abstract

JAXA and Kyoto University are researching with quality engineering tools (JIANT) and wallstat, a seismic simulator for wooden buildings.

Our theme is research on the combination of testing and simulation (data assimilation).This study is a joint research of JAXA-Kyoto University-Nara Women’s University.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

The purpose of using a supercomputer is to speed up calculations.

The calculation of wallstat takes 40 minutes per case on a general PC.

That means that if we perform 6000 calculations in one case study, it takes a total of 160 days, but if we use JSS3, we can complete them in a few hours.

Achievements of the Year

The test results of a two-story wooden building and the simulation were combined. Originally, the cycle and maximum value of the results did not match, but by performing a comprehensive calculation of 14641 cases, we obtained almost the same results. The calculation time in JSS3 was about 3 hours.

Since good results were obtained, we made presentations to the Architectural Institute of Japan, the Wood Society, etc.

Annual Reoprt Figures for 2021

Fig.1: Target full-scale vibration experiment and reference paper

 

Annual Reoprt Figures for 2021

Fig.2: Calculation by wallstat and JIANT

 

Annual Reoprt Figures for 2021

Fig.3: Data assimilation result (top: human adjustment result, bottom: JIANT result)

 

Publications

N/A

Usage of JSS

Computational Information

  • Process Parallelization Methods: N/A
  • Thread Parallelization Methods: N/A
  • Number of Processes: 1
  • Elapsed Time per Case: 7200 Second(s)

JSS3 Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.62

 

Details

Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.

Computational Resources
System Name CPU Resources Used
(Core x Hours)
Fraction of Usage*2(%)
TOKI-SORA 365.32 0.00
TOKI-ST 4281573.70 5.27
TOKI-GP 0.00 0.00
TOKI-XM 0.00 0.00
TOKI-LM 83.49 0.01
TOKI-TST 0.00 0.00
TOKI-TGP 0.00 0.00
TOKI-TLM 0.00 0.00

 

File System Resources
File System Name Storage Assigned
(GiB)
Fraction of Usage*2(%)
/home 150.00 0.15
/data and /data2 52200.00 0.56
/ssd 1000.00 0.26

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 0.00 0.00

*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.

 

ISV Software Licenses Used

ISV Software Licenses Resources
ISV Software Licenses Used
(Hours)
Fraction of Usage*2(%)
ISV Software Licenses
(Total)
0.00 0.00

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

JAXA Supercomputer System Annual Report February 2021-January 2022