Supercomputer Center

ChairpersonKAWASHIMA, Naoki
Contact PersonOZAKI, Taisuke
Contact PersonSUGINO, Osamu
Contact PersonNOGUCHI, Hiroshi
Project Researcher (PI)YOSHIMI, Kazuyoshi
Technical SpecialistYATA, Hiroyuki
Technical SpecialistFUKUDA, Takaki
Technical SpecialistMOTOYAMA, Yuichi
Project Academic SpecialistARAKI, Shigeyuki
Project ResearcherAOYAMA, Terumi
Research Associate FUKUDA, Masahiro
Research Associate IDO, Kota

The Supercomputer Center (SCC) operates a supercomputer system available to all researchers of condensed matter physics in Japan. One can submit a proposal for a User Program to the Supercomputer Steering Committee, and once granted he/she can use the facility with no charge. The supercomputer system consists of two systems: The main system (System B (ohtaka)), which started operation in Oct. 2020, and the sub-system (System C (kugui)), which started operation in June 2022. Information about project proposals can be found in the center's web page ( In addition to maintaining high performance of the hardware in cooperation with the venders, the SCC also responds to questions and inquiries from users on a daily basis. In 2015, aiming at more efficient usage of the supercomputer systems, we started a new program PASMUS for developing a few applications annually based on proposals from the ISSP supercomputer users.

Supercomputer Center

Main Facilities

System B (ohtaka): Dell PowerEdge C6525/R940 (1680 CPU nodes of AMD EPYC 7702 (64 cores) and 8 FAT nodes of Intel Xeon Platinum 8280 (28 cores) with total theoretical performance of 6.881 PFLOPS)
System C (kugui): HPE Apollo 2000 Gen10 Plus/HPE Apollo 6500 Gen10 Plus (128 CPU nodes of AMD EPYC 7763 (128 cores) and 8 ACC nodes of AMD EPYC 7763 (64 cores) with total theoretical performance of 0.973 PFLOPS)

The Supercomputer System at the SCC-ISSP.
Software developed by ''Project for Advancement of Software Usability in Materials Science'' (PASUMS)