本文へ移動

サイトナビゲーションへ移動

検索ボックスへ移動

サイドバーへ移動

ここは、本文エリアの先頭です。

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

PDF available here

  • 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.

Computational Resources
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 Resources
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 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.

JAXA Supercomputer System Annual Report April 2019-March 2020