Reserch of Vasitation Lidar data using HPC

JAXA Supercomputer System Annual Report April 2019-March 2020

Report Number: R19EDG20200

Subject Category: Research and Development

Responsible Representative: Toshiyoshi Kimura, Director, Sensor System Research Group Research and Development Directorate
Contact Information: Rei Mitsuhashi(mitsuhashi.rei@jaxa.jp)
Members: Rei Mitsuhashi, Yoshito Sawada

Abstract

To develop an analysis algorithm for vegetation lidar data, we calculate of vasitation lidar simulator and GPU computing using JSS2.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

By calculation on multiple nodes equipped with sufficient memory, the time required for iteration of lidar data proccesing algorithm development is reduced. In addition, we want to comfirm result of distributed deep learning using big remote sensing data.

Achievements of the Year

In this fiscal year, the vegetation rider simulator developed by the Sensor Research Group was executed on JSS2, and more than 1 million cases of simulation could be executed in a short time. In addition, the simulation results were deep-learned using a GPU on the JSS, and a new data analysis algorithm was developed.

Publications

N/A

Usage of JSS2

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: OpenMP
Number of Processes: 1 – 4
Elapsed Time per Case: 10 Hour(s)

Resources Used

Fraction of Usage in Total Resources*1(%): 0.03

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	62,703.96	0.41
SORA-LM	0.00	0.00
SORA-TPP	292.88	0.02

File System Resources
File System Name	Storage Assigned (GiB)	Fraction of Usage*2(%)
/home	9.54	0.01
/data	9,813.31	0.17
/ltmp	1,953.13	0.17

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.