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Call for proposals for BA simulation projects in JFRS-1_2024_v1.0

Call for proposals for BA simulation projects in JFRS-1(2024/4/1 to 2025/3/31)
Deadline for answers: Friday, 9th February 2024
1. Preface
The Broader Approach (BA) activities entered the BA Phase II in April 2020 buildingon the successful results of the BA Phase I (from June 2007 to March 2020). The objectivesof the International Fusion Energy Research Centre (IFERC) in BA Phase II are to support
ITER, JT-60SA and IFMIF/EVEDA and to consolidate the know-how for the developmentof future fusion reactors (DEMO). In line with the objectives, F4E together withEUROfusion and QST continuously promote simulations in the Computational Simulation
Centre (CSC), as part of the IFERC project activities (IFERC-CSC).
For this purpose, the high performance computer resource JFRS-1 in Rokkasho isprovided by QST as a Japanese host contribution to BA Phase II. Therefore, similar to FY
2023, this resource is available to implement EU and Japan projects and EU-JA joint
projects in FY 2024 (from April 2024 to March 2025). Resources are reserved for projects
targeting priority areas relevant to the objectives of the IFERC project, and the projects
must address issues relevant to fusion development programmes such as ITER, JT-60SA,
DEMO or IFMIF/EVEDA.
2. Scope of simulation projects
In order to effectively support the HPC simulation projects, with this call for proposals,
we would like to invite scientists and engineers to propose project(s) addressing issues
relevant to• ITER,• JT-60SA,• DEMO,• IFMIF/EVEDA.
The issues in prime categories fall under the following topics:• Divertor physics:(improved models, detached conditions, poloidal asymmetry, plasma surface
interactions, heat load, issues related to ITER re-baselining etc.),• Edge physics:

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Call for proposals for BA simulation projects in JFRS-1_2024_v1.0•
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(improved confinement, L-H transition, Edge Localised Modes, 3D effects such
as Resonant Magnetic Perturbations, issues related to ITER re-baselining suchas W first wall etc.),
Disruption:(overall modelling, effects of runaway electrons and mitigation systems, etc.),
Plasma turbulence and related transport processes:(core or edge turbulence, transport barrier, etc.),
Fast Particle physics:(influence of Alfvén Eigenmodes on Fast Particle confinement and/or burning
plasma, etc.),
Integrated modelling of fusion plasmas:(overall modelling, application to burning plasma, etc.),
Heating and current drive:(NBI, ECH, ICRF, etc.)
Reactor materials:(irradiation effects on reactor materials, structural materials [Reduced Activation
Ferritic Martensitic steels], functional materials [neutron multiplier, tritium
breeder], divertor materials [W], etc.)
Reactor technology:(nuclear analysis, neutronics, etc.).

3. Specifications of the available computer system
The computer available in JA is the Japan Fusion Reactor Simulator 1 (JFRS-1) inthe Rokkasho Fusion Institute of QST. JFRS-1 is a Cray XC50 supercomputer with 1,370
conventional CPU nodes, and each compute node has 2 Intel Xeon Gold 6148
(2.4GHz/20C) processors and 192GB of memory. The peak performance of JFRS-1 is 4.2PFlops.
The total amount of available node-hours for this call in JFRS-1 is 9,000,900 nodehours. Please note that the above-mentioned total amount of available node-hours will beshared among the selected proposals.
4. Eligibility of proponents and participants in projects
The Principal Investigator, and co-Principal Investigator if any, of each project musthave a contractual link with some recognised fusion research organisation in EU or JA,
and be empowered in this organisation to propose this kind of project. In the case of

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scientists not belonging to such organisations, they can participate in the project only as
collaborators and their participation in the project must be covered by a formal agreement.
Also, the Principal Investigator, and co-Principal Investigator if any, will ensure that the total
amount of node-hours allocated to all the scientists belonging to neither EU nor JA researchorganizations in a project is limited to a maximum of 50% of the node-hours allocated to theproject. The acceptance of recognised fusion research organisations will be under theresponsibility of the Implementing Agencies (F4E or QST).
5. Proposal and selection
The proposal should detail the objectives of the project, the relationship of theproject to issues of ITER, JT-60SA, DEMO and IFMIF/EVEDA, and the required resources
following the attached “Application form for BA sim. in JFRS-1_2024.docx”.
In the proposal, it must be described in detail the justification/rationale for the use of
the resources requested, by including the information in terms of expected number of runs,
number of nodes used, and elapsed time per run and the relationship to the scientificobjectives. Proposals will be rejected if no proper justification/rationale for the use ofresources is provided.
Proposals will be selected based on a peer review process defined by the JointAllocation Committee. Only proposals which are technically fit for the JFRS-1 will be kept
while the final selection will be made according to the scientific and technical merit of
the proposals, taking into account the following criteria:(1) Relevance to issues of fusion development programmes: ITER, JT-60SA,
DEMO and IFMIF/EVEDA, and clearness of research plan (40%, threshold: 2),(2) Quantitative justification of the requested computer resources and relationship to
the objectives (20%, threshold: 2),(3) Scientific excellence including innovation potential (20%, threshold: 2),(4) EU/JA collaborative aspects (20%).
Proposals with one or more evaluations below the threshold of 2 (the range of evaluatedvalues is from 0 to 5) in categories (1), (2) and (3) will fail. Note that the criterion (4) has
no threshold, and a well evaluated project contains a Principal Investigator from one side
and a co-Principal Investigator from the other side, and has clearly defined benefits of a
EU/JA joint collaboration together with the roles of both EU and JA researchers.
Remark: for proposals using data from experimental facilities (including the usage ofdata from ITER, JT-60SA, DEMO and IFMIF/EVEDA), a collaboration agreement should
be concluded separately. In such cases, please contact the authority managing the data.

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6. Presentation and publication of obtained results
The participants must agree to acknowledge EUROfusion and QST when the resultsof the projects are presented and published. A suitable acknowledgement is as follows:“This work was carried out (partially) using supercomputer resources, JFRS-1 providedunder the EU-JA Broader Approach collaboration in the Computational Simulation Centreof International Fusion Energy Research Centre (IFERC-CSC).”
7. User Access and Export control
Japan and European Union countries are parties to the Wassenaar Arrangement,
which ensures an Export Control with respect to high level, possible dual-use technology
components, including supercomputer technical information, knowledge, set-up, and useraccess. For the purpose of obtaining user access, all prospective users will have to provide
personal information such as nationality and the place of abode, which will be used onlyfor this purpose.
This process is completely independent of the selection process for research projects
by the Joint Allocation Committee. This process will be done separately and in parallelwith the selection process, enabling the checking to be followed by F4E and QST thatwill have to be completed before account opening after the project is granted. The JA
management staff will notify EU applicants for using the JFRS-1 of details of this process
through e-mail after receiving the application forms.
8. Contact points
The proposals should reach the Joint Allocation Committee (alloc-com@iferc.org)
by Friday, 9th February 2024. Selected projects will be implemented from 1st April
2024 to 31st March 2025. Questions on the call for proposals should be sent to the Joint
Allocation Committee (alloc-com@iferc.org).
After completion of the project, a short written report (i.e. 1-2 pages) presenting themain results is required and shall be sent to the Joint Allocation Committee (alloccom@iferc.org) by the end of May 2025. If applicable, this report will be taken into accountwhen assessing a continuation of the future simulation projects in the BA framework.