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Usage summary of JSS2 in FY2019

JAXA Supercomputer System Annual Report April 2019-March 2020

SORA-MA system, which is the main computing resource of JSS2, is the target of the following analysis.

Resource allocation

Five usage classifications shown in Table 1 are set, and even if JSS2 is very crowded, use is guaranteed up to the allocation rate set for each usage classification.

When JSS2 is vacant, crowded classifications could use resources exceeding the allocation limt, and efforts are made to make effective use of resources.

The allocation results in Fig. 1 show the result of the overall control by the job scheduler. Specified Project Use have been growing its portion year by year since the production of JSS2.

 

Table 1: Usage classification and allocation

g2019AR-OVE_Table1

g2019AR-OVE_Fig1

Fig.1: Trend of Usage classification and allocation (FY2016-2019)

 

Usage result of specified projects

In FY2019, new projects were selected in light of the new business plan. They are:

  • Aeronautical Science and Technology
  • Space Transportation System
  • Expansion of Satellite-related Processing
  • Satellite Remote Sensing

g2019AR-OVE_Fig2

Fig.2: Trend of the Usage of Specified projects (FY2019)

 

Usage result by field

Top application of Aeronautical Technology is 50%, while Space Transportation and Competitive Funding/Contract Research follow as the second and third positions. Contributions to extrnal include Contract Research, Student Training and JSS2 Inter-University Research.

g2019AR-OVE_Fig3Fig.3: Usage result by field

 

SORA-MA Operating status

The occupancy rate had steadily increased from FY2016 to FY2018. In FY2019, it was as high as FY2018, although it dropped in March 2020 due to the file system failure.

g2019AR-OVE_Fig4

Fig.4: Trend of the occupancy rate (FY2016-2019)

 

Job trend analysis

The following is the analysis of the maximum number of parallel processes by each business/study theme on SORA-MA system, and their total core time consumed in the year.

Table 2 shows the distributions of the total core time which are categorized by 5 with the maximum number of processes of the themes. Compared with FY2018, it is observed that the jobs are shifting to bigger number of parallel processes.

 

Table 2: Number of Processes per job and core time

g2019AR-OVE_Table2
g2019AR-OVE_Fig5Fig.5: Correlation between number of parallel processes and core time

 

Attachment 1: JSS2 specifications

Table 3: Major Specifications

g2019AR-OVE_Table3

 

Attachment 2: Usage Fee list

Table 4: Usage Fee list of JAXA Facility Utilization (Japanese)

g2019AR-OVE_Table4_Japanese

 

JAXA Supercomputer System Annual Report April 2019-March 2020