Evaluation of cosmic ray effects in the CMB satellite LiteBIRD
JAXA Supercomputer System Annual Report February 2021-January 2022
Report Number: R21ECWU10
Subject Category: Cooperative Graduate School System
- Responsible Representative: Masahiro Tsujimoto, Department of Astrophysics, ISAS
- Contact Information: Masahiro Tsujimoto(tsujimot@astro.isas.jaxa.jp)
- Members: Takuya Midooka, Masahiro Tsujimoto, Yusuke Takase, Hayato Takakura
Abstract
Assessment of the cosmic-ray effects to the cosmic microwave background observation satellite LiteBIRD
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
This study requires to simulate very long observation data with different setting parameters. The calculation can be done in parallel, thus the use of HPC is suited.
Achievements of the Year
We did not use the computational resources for this fiscal year. Based on the results obtained with JSS2 last fiscal year, we published in pappers.
Publications
– Peer-reviewed papers
“Simulations of systematic effects arising from cosmic rays in the LiteBIRD space telescope, and effects on the measurements of CMB B-modes”
Stever, S.L. & Ghigna, T. & Tominaga, M. & Puglisi, G. & Tsujimoto, M. & Marazzini, M. Zeccoli & Baratto, M. & Tomasi, M. & Minami, Y. et al., 2021, Journal of Cosmology and Astroparticle Physics, 2021, 013
– Non peer-reviewed papers
“Simulation of the cosmic ray effects for the LiteBIRD satellite observing the CMB B-mode polarization”, Tominaga, Mayu, Tsujimoto, Masahiro, Stever, Samantha Lynn, Ghigna, Tommaso, Ishino, HIrokazu, et al.Proc. SPIE 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X, 114532H (13 December 2020); doi: 10.1117/12.2576127
– Other
“Assessment of cosmic-ray noise effects and design of the onboard data processing for LiteBIRD”, Mayu Tominaga, Master thesis, 2021, University of Tokyo
Usage of JSS
Computational Information
- Process Parallelization Methods: N/A
- Thread Parallelization Methods: N/A
- Number of Processes: 1
- Elapsed Time per Case: 24 Hour(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 | 0.00 | 0.00 |
| TOKI-ST | 18.10 | 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 | 148.33 | 0.15 |
| /data and /data2 | 983.33 | 0.01 |
| /ssd | 983.33 | 0.25 |
| 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.
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