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
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
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.
Fig.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.
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
Fig.5: Correlation between number of parallel processes and core time
Attachment 1: JSS2 specifications
Table 3: Major Specifications
Attachment 2: Usage Fee list
Table 4: Usage Fee list of JAXA Facility Utilization (Japanese)
JAXA Supercomputer System Annual Report April 2019-March 2020