Regulations for Use of “RIKYU”¶
Article 1. Objective¶
The objective of these regulations of use is to stipulate necessary rules for the use of “RIKYU” (AI for Science Supercomputer) “RIKYU” managed and operated by the Center for Computational Science (hereinafter called R-CCS) of RIKEN.
Article 2. Purposes of Use¶
The use of “RIKYU” must contribute to the development of science and technology, as well as research and development related to AI for Science, the reuse and sharing of research results, and the formation of research communities.
Article 3. User Qualifications¶
Anyone who uses or intends to use “RIKYU” (hereinafter called the User) is one who satisfies any of the following conditions.
(1) One who conducts a research project selected and confirmed by institution separately designated by the R-CCS, or by R-CCS itself.
(2) One who has been approved by the director of R-CCS (hereinafter called the R-CCS Director) and by those designated by the R-CCS Director to conduct system adjustment for the stable operation of “RIKYU”; research and development for supporting its users; research for enhancement and support for use which contribute to a wide range of users in areas including data science and AI; activities for the expansion of its users; leading research and development for computational science; and projects and other things supporting its users by institution separately designated by the R-CCS .
Article 4. Provision of Services¶
1. R-CCS provides the User with the services listed below, and the User can use them.
(1) Computational resources of “RIKYU””
(2) Software provided by R-CCS
(3) Support for using “RIKYU”
(4) Other services provided additionally by R-CCS
2. R-CCS may change part of or all the contents of its services whenever necessary. In case of an important change, however, it will notify the User of it.
Article 5. User Registration and the Period of Use¶
1. Before using “RIKYU”, the User shall make a designated application to R-CCS or institution separately designated by the R-CCS.
2. Upon receiving and confirming the application of the preceding paragraph, the R-CCS Director will grant an account for using CCC once the eligibility and other requirements are verified. However, an account may not be granted in any of the following cases:
(1) Violation of the Pledge, or failure to agree to it.
(2) If the review results concerning export control related to security regulations indicate that use is not permitted.
(3) If there is suspicion that the usage is for criminal or other improper purposes.
(4) If past misconduct or inappropriate behavior has been recognized, raising concerns regarding the use of “RIKYU”.
(5) If there is suspicion that the usage is for purposes other than those contributing to scientific and technological advancement.
(6) Any other case in which it is deemed that the use is inappropriate.
3. Upon issuing the account described in the preceding paragraph, R-CCS or institution separately designated by the R-CCS will notify the User of the completion of the user registration.
4. The valid period of the account will be the period determined by the R-CCS or institution separately designated by the R-CCS.
5. If any change arises in the contents of the application described in paragraph 1 of this article within the valid period of the account, the User shall report it to R-CCS or institution separately designated by the R-CCS.
Article 6. Responsibility of the User¶
1. The User must comply with these Regulations of Use in using “RIKYU”.
2. The User must pledge not to violate the related laws and regulations applicable for the use of “RIKYU”, such as the laws and regulations regarding security export control, and be liable for the use of “RIKYU”.
3. The User must determine the attribution of the User’s achievement and related results resulting from the use of “RIKYU” and publicize or report them as provided for by RIKEN, R-CCS or institution separately designated by the R-CCS.
4. The User must properly manage all information and materials necessary for using “RIKYU”, including the User’s account, make every effort to prevent any unauthorized use of “RIKYU”, and be liable for all activities arising from the User’s account. RIKEN shall not be liable for unauthorized access to the User’s account.
5. The User must not use “RIKYU” for any purposes other than the research project described in the User’s application stipulated by the paragraph 1 of Article 5. In addition, the User must not allow any third party to use “RIKYU”.
6. The User must make every effort to disclose the User’s data according to the data management plan described in the application form of the User’s research project.
7. The User must properly use “RIKYU” as an IT system on the Internet. Especially, the User must not handle any illegal and harmful contents. In addition, the User must not do any act which brings security violation. Furthermore, the User must not use the network illegally.
Article 7. Sharing of research outputs¶
1. In order to contribute to improving the reproducibility of research results, accelerating research and development, and advancing the research community, users shall endeavor, to the extent that it does not violate laws and regulations, contracts, or other restrictions, to share or publish data, software, trained models, evaluation results, and other outputs created using “RIKYU”.
2. Users may allow other users to use the outputs referred to in the preceding paragraph for research purposes by using the sharing infrastructure provided by the research institute or center.
3. The scope and conditions of use of the sharing described in the preceding paragraph shall be determined by the user providing the relevant output.
4. The research institute does not guarantee the content, quality, safety, or noninfringement of third-party rights of the shared outputs.
Article 8. Usage Fee¶
1. For using “RIKYU”, the User must pay R-CCS the usage fee specified separately according to the usage classification.
2. If any expenses specified independently arise in using any facilities and equipment, such as a carry-in server room, of R-CCS, the User must pay the expenses.
Article 9. Restriction of Use¶
1. The R-CCS Director can examine, as stipulated separately, if the User complies with these Regulations of Use. If the User is expected to interfere with the operation of “RIKYU”, the R-CCS Director may order the User to correct the User’s method of use, and the User must follow the order.
2. If the User does not follow the order of the R-CCS Director as described in the preceding paragraph or if the User falls into any of the following conditions, the R-CCS Director may cancel the use approval for the User or terminate the use.
(1) The User violates any of these Regulations of Use.
(2) The User has lost the User’s qualification for using “RIKYU”.
(3) Some false statement has been found in the User’s documents submitted to R-CCS or institution separately designated by the R-CCS.
(4) The User’s account has expired.
(5) The User has failed to pay the required usage fee.
(6) When it is determined that any of the conditions specified in Article 5, Paragraph 2, are met
(7) Whenever the R-CCS Director has judged that the User may interfere with the operation of “RIKYU”.
3. For the stable operation of “RIKYU”, R-CCS may take any of the following measures without any prior notification.
(1) In case it is suspected that the User’s account is used by a third party, R-CCS may suspend the account.
(2) In case it is suspected that some operation possible to exert overload on “RIKYU” has been executed, R-CCS may suspend or terminate the operation.
(3) Whatever measures necessary to maintain the stable operation of “RIKYU”.
Article 10. Suspension of “RIKYU” Operation¶
R-CCS may suspend the operation of “RIKYU” without prior notice to the Users if any unavoidable circumstances occur.
Article 11. Disclaimer¶
1. RIKEN shall not be liable for any damage or loss arising from or incidental to the use of “RIKYU” suffered by the User or for any damage or loss inflicted by the User on a third party.
2. Regardless of the reason, RIKEN shall not be liable for any damage or loss suffered by the User arising from the reduction of the User’s planned usage time or for the unavailability of “RIKYU”.
3. The User must be responsible for managing any technology provided by the User which is subject to security export control. RIKEN shall not be liable for any infringement of the corresponding regulations by the User.
Article 12. Miscellaneous¶
In addition to these Regulations of Use, the R-CCS separately stipulates any provisions necessary for using “RIKYU”.
Effective Date of Amendment¶
1. The amendments to this regulation shall come into effect on July 6,2026.