Construction and maintenance of JIANT, a quality engineering tool for Safety&MissionAssurance platform
JAXA Supercomputer System Annual Report April 2020-March 2021
Report Number: R20EH2900
Subject Category: Common Business
- Responsible Representative: Yuji Kado, Associate Senior Engineer, Safety and Mission Assurance Department
- Contact Information: Kado, Yuji, JAXA Safety and Mission Assurance Department(kado.yuji@jaxa.jp)
- Members: Yuji Kado, Takafumi Nakagawa, Chihiro Uematsu, Daisuke Kosemura
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.
Fig.1: Outline of the Experiment
Fig.2: Data assimilation by JSS3
Fig.3: Calculation Result of High-Precision Data Assimilation
Publications
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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)
Resources Used(JSS2)
Fraction of Usage in Total Resources*1(%): 0.09
Details
Please refer to System Configuration of JSS2 for the system configuration and major specifications of JSS2.
| System Name | Amount of Core Time(core x hours) | Fraction of Usage*2(%) |
|---|---|---|
| SORA-MA | 0.00 | 0.00 |
| SORA-PP | 98,505.68 | 0.77 |
| SORA-LM | 101.30 | 0.06 |
| SORA-TPP | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 42.92 | 0.04 |
| /data | 49,257.30 | 0.95 |
| /ltmp | 8,789.07 | 0.75 |
| 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.
Resources Used(JSS3)
Fraction of Usage in Total Resources*1(%): 1.14
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
| System Name | Amount of Core Time(core x hours) | Fraction of Usage*2(%) |
|---|---|---|
| TOKI-SORA | 241.13 | 0.00 |
| TOKI-RURI | 2,228,628.20 | 12.76 |
| TOKI-TRURI | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 119.21 | 0.08 |
| /data | 49,543.40 | 0.83 |
| /ssd | 715.26 | 0.37 |
| 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.
JAXA Supercomputer System Annual Report April 2020-March 2021