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。

Development of Aerodynamic Optimization Library: Harmonee

JAXA Supercomputer System Annual Report February 2021-January 2022

Report Number: R21EA3202

Subject Category: Aeronautical Technology

PDF available here

  • Responsible Representative: Takashi Aoyama, Aeronautical Technology Directorate, Numerical Simulation Research Unit
  • Contact Information: Mami Hayakawa(hayakawa.mami@jaxa.jp)
  • Members: Atsushi Hashimoto, Mami Hayakawa, Takashi Ishida, Masahiro Kanazaki, Yukinori Morita, Takuya Ogura, Tetsuji Ogawa, Minoru Yoshimoto

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

The surrogate model assisted module of ‘Harmonee’ and ‘WingBoxGen’, structure sizing tool developed by JAXA, were applied to the multi-objective optimization problem for the aero-structural design. We improved Harmonee and comfirmed that reasonable pareto optimal solutions were obtained faster than before.

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)

JSS3 Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.08

 

Details

Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.

Computational Resources
System Name CPU Resources Used
(Core x Hours)
Fraction of Usage*2(%)
TOKI-SORA 681389.39 0.03
TOKI-ST 50416.51 0.06
TOKI-GP 0.00 0.00
TOKI-XM 20441.11 14.73
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 Resources
File System Name Storage Assigned
(GiB)
Fraction of Usage*2(%)
/home 472.12 0.47
/data and /data2 103284.66 1.10
/ssd 310.10 0.08

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 0.28 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 Resources
ISV Software Licenses Used
(Hours)
Fraction of Usage*2(%)
ISV Software Licenses
(Total)
42.06 0.03

*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.

JAXA Supercomputer System Annual Report February 2021-January 2022