Research for MOLI project
JAXA Supercomputer System Annual Report February 2021-January 2022
Report Number: R21EDG20200
Subject Category: Research and Development
- Responsible Representative: Sumita Taishi, Mission Manager,MOLI Pre-Project Team
- Contact Information: Rei Mitsuhashi(mitsuhashi.rei@jaxa.jp)
- Members: Rei Mitsuhashi, Yoshito Sawada
Abstract
MOLI mission has no real-time processing requirements for observation data handling, and the HDD containing observation data is transported by hand-carry from the ISS. The project team will consider the necessary studies to move from the pre-production period to the priority use at the same time as the project transition.
Reference URL
Please refer to https://www.kenkai.jaxa.jp/research/moli/moli-index.html .
Reasons and benefits of using JAXA Supercomputer System
In processing satellite observation data, even complex algorithms can be processed at high speed by dividing and processing the data.
In addition, we expect that JSS, which is equipped with many nodes with high-performance GPUs, will be able to complete the deep learning process using large amounts of data in real time.
Achievements of the Year
For the study of global high-precision biomass estimation, which is the final goal of the MOLI mission, we studied the fusion of observation data from GCOM-C/SGLI and the GEDI mission, which is a space lidar in operation.
By using the computational resources of JSS, we were able to achieve global-level data fusion processing in a short period of time. This result was released to the public as GCOM-C/SGLI AGB product Ver. 3.
https://suzaku.eorc.jaxa.jp/GCOM_C/data/update/Algorithm_AGB_en.html
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: OpenMP
- Number of Processes: 4 - 10
- Elapsed Time per Case: 12 Hour(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 0.46
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 | 0.00 | 0.00 |
| TOKI-ST | 3108225.24 | 3.83 |
| TOKI-GP | 64.81 | 0.04 |
| TOKI-XM | 0.00 | 0.00 |
| TOKI-LM | 46711.33 | 3.48 |
| 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 | 10.00 | 0.01 |
| /data and /data2 | 112690.00 | 1.20 |
| /ssd | 100.00 | 0.03 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 82.98 | 0.56 |
*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 2021-January 2022