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Radiative Magnetohydrodynamic Simulations of Solar Atmosphere

JAXA Supercomputer System Annual Report April 2017-March 2018

Report Number: R17EACA25

Subject Category: JSS2 Inter-University Research

PDF available here

  • Responsible Representative: Haruhisa Iijima, Institute for Space-Earth Environmental Research, Nagoya University
  • Contact Information: Haruhisa Iijima h.iijima@isee.nagoya-u.ac.jp
  • Members: Haruhisa Iijima

Abstract

We evaluated the parallel scaling of the numerical code for the simulation of the solar surface convection, called CO-RAMENS (Convection-Oriented RAdiative Magnetohydrodynamics Extensive Numerical Solver).

Reference URL

N/A

Reasons for using JSS2

As a preparation of the large-scale simulation, we intended to evaluate the parallel efficiency of the numerical code.

Achievements of the Year

We are planning to carry out a large-scale simulation of the solar surface convection using CO-RAMENS. In this fiscal year, we evaluate the weak scaling of the code. The parallel efficiency is 87.1% in the weak scaling from 2592 cores to 5184 cores.

Publications

N/A

Usage of JSS2

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: N/A
  • Number of Processes: 2592
  • Elapsed Time per Case: 4.00 seconds

Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.00

 

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 205.33 0.00
SORA-PP 0.00 0.00
SORA-LM 0.00 0.00
SORA-TPP 0.00 0.00

 

File System Resources
File System Name Storage Assigned
(GiB)
Fraction of Usage*2(%)
/home 009.54 0.01
/data 095.37 0.00
/ltmp 1,953.13 0.15

 

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.

JAXA Supercomputer System Annual Report April 2017-March 2018