Global Terrestrial Hydrological Simulation System “Today’s Earth”
JAXA Supercomputer System Annual Report February 2022-January 2023
Report Number: R22EER20200
Subject Category: Space Technology
- Responsible Representative: Kosuke Yamamoto, Space Technology Directorate I, Earth Observation Research Center
- Contact Information: Today’s Earth Research and Development Group(Z-watercnt@ml.jaxa.jp)
- Members: Takafusa Andoh, Tomohiko Higashiuwatoko, Misako Kachi, Takuji Kubota, Ryosuke Kakuda, Yukihiko Onuma, Kazuhiro Sakamoto, Kei Yoshimura, Haruya Yoshikawa, Kosuke Yamamoto
Abstract
Today’s Earth is the global terrestrial hydrological simulation system to estimate various hydrological variables relating to the conditions of land surface and rivers utilizing satellite observation, developed under the joint-research of the JAXA and th University of Tokyo. In this project, long-term reprocessing of the past period of the system and development study of a future high-resolution simulation system for the global 10 km or more will be conducted on JSS.
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
It is possible to perform large-scale processing that is difficult to execute on an EORC server, such as long-term reprocessing of past periods and the development of high-resolution simulation systems with a global resolution of 10 km or more.
Achievements of the Year
Prepared for the long-term reprocessing of past periods and the development of a high-resolution simulation system with a global resolution of 10 km or more. ILS (Integrated Land Simulator) which is the integrated model of land surface model MATSIRO and river hydrodynamics model CaMa-Flood used in Today’s Earth system was run on JSS3 and the output was confirmed to be consistent with the output in a conventional environment.
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: N/A
- Number of Processes: 24
- Elapsed Time per Case: 4 Minute(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 0.00
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
| System Name | CPU Resources Used(Core x Hours) | Fraction of Usage*2(%) |
|---|---|---|
| TOKI-SORA | 100.09 | 0.00 |
| TOKI-ST | 0.00 | 0.00 |
| TOKI-GP | 0.00 | 0.00 |
| TOKI-XM | 0.00 | 0.00 |
| TOKI-LM | 0.00 | 0.00 |
| TOKI-TST | 0.00 | 0.00 |
| TOKI-TGP | 0.00 | 0.00 |
| TOKI-TLM | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 61.67 | 0.06 |
| /data and /data2 | 616.67 | 0.00 |
| /ssd | 616.67 | 0.09 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 16.81 | 0.07 |
*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 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 2022-January 2023