Digital Transformation of Satellite Development

JAXA Supercomputer System Annual Report February 2025-January 2026

Report Number: R25EDG20140

Subject Category: Research and Development

Responsible Representative: Seiji Tsutsumi, RInsertHereD Manager, Research and Development Directorate, Research Unit III
Contact Information: Seiji Tsutsumi(tsutsumi.seiji@jaxa.jp)
Members: Masaharu Abe, Kengo Asada, Hiroaki Amakawa, Shotaro Hamato, Kaname Kawatsu, Seiji Tsutsumi, Akihito Takeda, Akimitsu Terunuma

Abstract

In this study, eigenvalue analyses were conducted for Nihon University’s microsatellite Prelude using FrontISTR, and validation was performed based on the results of vibration tests.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

In this study, the large‑scale parallel computing capability and substantial memory resources of the supercomputer were required to perform accurate and highly reproducible eigenvalue analyses using FrontISTR on the approximately 4.5‑million‑element structural model of the Prelude satellite, and as a result, we were able to achieve stable computations within a short time frame that would be difficult on ordinary computing environments, carry out reliable validation based on vibration test results, accelerate parametric analyses, and ultimately enhance both the efficiency and reliability of the overall satellite design and development process.

Achievements of the Year

We validated the large‑scale parallel FEM analysis capabilities of FrontISTR using vibration test data from Nihon University’s microsatellite Prelude, and we also performed verification for a commercial satellite by comparing structural analyses with NASTRAN and thermal analyses with Thermal Desktop.

Publications

N/A

Usage of JSS

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: N/A
Number of Processes: 144
Elapsed Time per Case: 38 Minute(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.02

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	2322.45	0.00
TOKI-ST	4432.16	0.00
TOKI-GP	0.00	0.00
TOKI-XM	0.00	0.00
TOKI-LM	360.57	0.03
TOKI-TST	62.64	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	0.00	0.00
/data and /data2	0.00	0.00
/ssd	0.00	0.00

Archiver Resources
Archiver Name	Storage Used (TiB)	Fraction of Usage*2(%)
J-SPACE	93.79	0.29

*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)	1758.68	1.23

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