Development of Aerodynamic Optimization Library: Harmonee
JAXA Supercomputer System Annual Report April 2020-March 2021
Report Number: R20EA3202
Subject Category: Aeronautical Technology
- Responsible Representative: Takashi Aoyama, Aeronautical Technology Directorate, Numerical Simulation Research Unit
- Contact Information: Mami Hayakawa(hayakawa.mami@jaxa.jp)
- Members: Takashi Ishida, Atsushi Hashimoto, Masahiro Kanazaki, Minoru Yoshimoto, Shinsuke Nishimura, Kei Nakanishi, Yukinori Morita, Takuya Ogura, Kyohei Sawada, Tetsuji Ogawa, Mami Hayakawa, Katsuhito Kozawa
Abstract
An aerodynamic optimization library "Harmonee," which uses the unstructured CFD code FaSTAR, is develped and its validity and efficiency are examined. A Multi-Objective Evolutionary Algorithm (MOEA) is employed as an aerodynamic optimization method. This tool is aimed to enable the direct evolutionary computing to perform within a practical computational time by utilizing the high speed performance of FaSTAR. In the present project, basic programs are developed and validated using JSS.
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
Aerodynamic optimization using an evolutionary algorithm requires a number of high-fidelity and large-scaled computations (3D RANS analysis) and needs to use the supercomputer.
Achievements of the Year
We validated the surrogate model assisted module of Harmonee by applying it to aerodynamic optimization problem which satisfies two objectives and two constraints shown in Fig1, according to the flowchart shown in Fig.2.
Fig.1: Optimization problem for NASA Common Research Model
Fig.2: Flowchart of aerodynamic optimization problem
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: Automatic Parallelization
- Number of Processes: 128
- Elapsed Time per Case: 2 Hour(s)
Resources Used(JSS2)
Fraction of Usage in Total Resources*1(%): 0.13
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 | 448,499.84 | 0.08 |
| SORA-PP | 38,128.79 | 0.30 |
| SORA-LM | 492.92 | 0.29 |
| SORA-TPP | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 887.85 | 0.81 |
| /data | 60,388.65 | 1.17 |
| /ltmp | 9,546.00 | 0.81 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 0.22 | 0.01 |
*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.
Resources Used(JSS3)
Fraction of Usage in Total Resources*1(%): 0.13
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
| System Name | Amount of Core Time(core x hours) | Fraction of Usage*2(%) |
|---|---|---|
| TOKI-SORA | 10,831.04 | 0.00 |
| TOKI-RURI | 11,467.42 | 0.07 |
| TOKI-TRURI | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 446.30 | 0.31 |
| /data | 93,768.10 | 1.57 |
| /ssd | 256.28 | 0.13 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 0.22 | 0.01 |
*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 2020-March 2021