Utilization of JSS2 for GCOM-C satellite control and mission operations
JAXA Supercomputer System Annual Report April 2019-March 2020
Report Number: R19EAR20500
Subject Category: Space Technology
- Responsible Representative: Kazuhiro Tanaka, Project Manager of The GCOM Project Team
- Contact Information: Kazuaki Nonaka, JAXA(nonaka.kazuaki@jaxa.jp)
- Members: Kazuaki Nonaka, Hidetoshi Hayasaka, Hiroshi Murakami, Rigen Shimada, Masahiro Hori, Toshiyuki Kobayashi, Kazunori Ogata, Megumi Okata, Junichi Takaku, Riko Higuchi, Naritoshi Imoto, Yoshino Yamada, Kazuhiro Tanaka, Hiroyuki Asahina, Noriko Aramaki, Yasuhiro Naiki, Takeshi Izumi, Nobuhiro Yamauchi, Seiji Matsushita
Abstract
GCOM-C*(SHIKISAI) was launched on Dec 23rd, 2017. It is conducting long-term and continuous global observation and data collection to understand the mechanism of changing radiation budget and carbon cycle needed to project future temperature rise accurately.
When upgrading the algorithm version, it is necessary to re-process by going back to the past data. Since it requires a very large-scale re-processing capability, a re-processing test for portability to JSS2 will be conducted.
*)GCOM-C : Global change Observation Mission-Climate
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
By using JSS2 with a large scalability processing environment and executing processing of enormous scenes in parallel, it becomes possible to provide products to users more quickly.
Achievements of the Year
We tested whether reprocessing of GCOM-C could be ported to JSS2. Most of the processing was confirmed to be portable without any problems. Problems remain in some processes, and testing is ongoing. (As of March 4)
Publications
N/A
Usage of JSS2
Computational Information
- Process Parallelization Methods: N/A
- Thread Parallelization Methods: N/A
- Number of Processes: 1
- Elapsed Time per Case: 16 Minute(s)
Resources Used
Fraction of Usage in Total Resources*1(%): 0.14
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 | 257,337.48 | 1.67 |
SORA-LM | 3.35 | 0.00 |
SORA-TPP | 0.00 | 0.00 |
File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
---|---|---|
/home | 248.75 | 0.21 |
/data | 197,951.09 | 3.39 |
/ltmp | 27,018.24 | 2.30 |
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 2019-March 2020