Supercomputing Division, Information Technology Center, The University Tokyo

Oakforest-PACS Supercomputer System
“Large-Scale HPC Challenge” Application Details

Research subjects

The Large-Scale HPC Challenge is restricted to research that involves large-scale computing using 8,192 nodes (557,056 cores). The premise is that applicants and members of research groups have a track record in large-scale computing using parallel computer systems in Japan or abroad. A wide range of research fields related to high-performance computing, as shown below, are eligible.
The Large-Scale HPC Challenge is restricted to research that involves large-scale computing using 4,200 nodes (flat mode) or 3,200 nodes (cache mode) or both. The premise is that applicants and members of research groups have a track record in large-scale computing using parallel computer systems in Japan or abroad. A wide range of research fields related to high-performance computing, as shown below, are eligible.
However, use of the systems under this initiative is restricted to projects that use self-made, proprietary programs and open-source programs, rather than the use of software developed by software vendors.

  • Large-scale simulations
  • Large-scale data processing
  • Large-scale benchmarking, evaluation of the performance of computational and communications systems
  • Other software execution related to large-scale computing

Eligibility for use

Eligibility for use is determined through screening by a screening committee comprising faculty members of the Supercomputing Research Division, Information Technology Center, the University of Tokyo, faculty members, the Center for Computational Sciences, University of Tsukuba, and external committee members, based on the application documents. Applicants do not have to be existing users of the system.

Applicants must be researchers affiliated with universities or public organizations in Japan, and or be parties affiliated with private corporations. In cases where the members of a research group or the applicant is from a corporation, it is necessary to submit one of the following documents.

  • Photocopy of joint research agreement
    (Those affiliated with a research organization that has concluded a joint research agreement with the applicant’s organization)
  • Photocopy of a written pledge stating that appropriate supervision will be carried out, and photocopy of contract agreement
    (Employees of a corporation that has concluded a contract agreement with the applicant’s organization)
  • Written pledge stating compliance with the purpose of use set out in the Terms of Use
    (Those affiliated with a private corporation)

Screening method/Selection criteria

Projects submitted for consideration will be selected based on the following criteria, by a screening committee comprising faculty members of the Supercomputing Research Division, Information Technology Center, the University of Tokyo, faculty members of the Center for Computational Sciences, University of Tsukuba, and external committee members. The results will be announced as soon as possible.

  • Research carried out using own coding or open-source programs.
  • Computational results can be deemed to be useful to science or have social impact.
  • Provides useful information to the operator or user of the system.
  • Sets out the goal of using 8,192 nodes.
    Sets out the goal of using 4,200 nodes (flat mode) or 3,200 nodes (cache mode) or both.
  • Feasible plans, and possibility of producing effects in a short time (each period of use is for a maximum of 8 21 hours).

Application for use

Read the application guidelines and Terms of Use for Supercomputer Systems carefully, and fill in the necessary fields in the application form. Please submit the completed application form by e-mail to the office for the submission of the application form stated below.


Compulsory fields in the application form
  1. Date of application
  2. Requested period of use
  3. Applicant’s information (Name, affiliation, designation, contact address, e-mail, telephone)
  4. Project title (Japanese, English), overview
  5. Contents and goals of project
  6. From the research achievements of the applicant and research group members in the relevant field, please provide a separate print of a representative paper as the record of use of large-scale computing systems.
  7. Program information, schedule for use, etc.
  8. Requests, special remarks
  9. Information of research group members (Name, affiliation, designation, role in the research project)
FY2021
Application Guidelines
Application form Report of results
PDF PDFWord PDFWord

Submission/Inquiries

Please inquire by e-mail if you have any questions about the application. Please refrain from inquiring by phone.

[Submissions]

E-mail:Email address for public recruitment inquiries
Research Support Team, Information Strategy Group, Information Systems Department, The University of Tokyo

*Please submit documents in PDF format.

[Inquiries]

E-mail:Email address for inquiries
Research Support Team, Information Strategy Group, Information Systems Department, The University of Tokyo

FAQ for Large-Scale HPC Challenge