Call for help with porting and optimizing software, including AI applications, to LUMI-G and AMD GPUs

Apply for help to port and optimize your software to LUMI-G with AMD GPUs! The selected projects in this call will receive porting and optimization help from the HPE Center of Excellence for LUMI (LUMI CoE) and the LUMI User Support Team. The selected teams are also invited to a hackathon in Switzerland on 1–5 December 2025. Read more information about the call and apply by 4 May, 2025!

You can apply if you are a researcher or a company located in either one of the LUMI consortium countries or in one of the EuroHPC Joint Undertaking member states. Ph.D. students and holders of postdoctoral fellowships are also eligible to apply. Up to six (6) projects will be selected in this round. The selected projects will receive porting and optimization help from the HPE Center of Excellence for LUMI (LUMI CoE) and the LUMI User Support Team, amounting to 2-6 person-months. You are expected to contribute at least two (2) person-months yourself.

IMPORTANT: the selected teams are invited to the hackathon organized by the LUMI User Support Team and the LUMI CoE in Switzerland (exact venue will be available soon) – 1-5 December 2025. The material from a previous hackathon held in October 2024 is available online.

Who can apply?

This is an open call. Anyone who is a member of an organization eligible to receive an allocation for LUMI compute resources is also welcome to apply to this program. In brief, this means that a research software developer affiliated with a research organization in the EuroHPC JU-associated countries and/or countries part of the LUMI consortium can apply. A company, which has its headquarters in such countries, is also eligible. By partnering with European research groups and/or companies, a non-European applicant can also participate, but please note that the principal investigator of any project that applies will need to be based in the EU or a Joint Undertaking associated country. Ph.D. students and holders of postdoctoral fellowships are also eligible to apply, but we may ask for further letters of support in such cases.

For more information, please see:
• LUMI General Terms of Use
• EuroHPC JU Access Policy

What we are looking for?

We are looking for research groups and companies interested in making their scientific software, including AI software, utilize the AMD GPU-compute architecture of LUMI to the fullest requiring specific assistance from the vendor collaboration (AMD and HPE experts). Please note that this call is not an allocation scheme for compute time, e.g., to enable porting by the applicants. Instead, we are looking for proposals outlining a team porting or optimization effort of existing software. The scope should be limited so that the task can be accomplished in less than six months with a project team of ca. four (4) people working part-time. If the proposal is selected, a team will be formed consisting of the applicants, one or more staff from the LUMI CoE, and one member of the LUMI User Support Team. This team will work together on enabling the software on LUMI-G.

We expect that the software is already parallelized to use multiple CPUs, preferably across many nodes using MPI (or equivalent). The main focus is to enable the use of AMD GPUs, although, depending on the use of the programming paradigm, it may also run on other GPUs and accelerators as a result of the work. We are mainly looking for software projects with open-source licenses or at least free academic use. We will consider commercially licensed software only in exceptional cases. In such cases, a high-level description of the implementation, such as a scientific publication describing the algorithms, will still have to be made public. In any case, the applicant must agree to grant access to the source code to the member(s) of the LUMI CoE and of the LUMI User Support Team assigned to the project.

How to apply

Call closing date: 4 May 2025
Project start: 2025H2

Proposals need to be provided using the template, which can be downloaded here. The completed proposals should be submitted as a PDF file using the LUMI support forms (please select the “General” category and put “LUMI Porting Program” in the subject).

The application form (4 pages) is structured as follows:

• Introduction/Background to the software and its use in the scientific field (ca 1 page).
• A scientific motivation (ca. 1 page) describing the potential impact of a successful porting project, e.g., what kinds of simulations could be made possible.
• A technical description of the software from a software development perspective (ca 1 page). The template provides guidance on the relevant information to provide.
• A brief project plan/description of how (parts of) the software could be ported to the GPU and the reason why (ca. 1 page).

There will be new calls in the future, approximately one per year.

How we will assess your application

Assessment process

The project will be selected in a two-stage process. The proposals are first subject to scientific and technical review and then ranked. The scientific review is performed by the LUMI consortium and/or external evaluators. The technical review is performed by the LUMI User Support Team and members of the LUMI CoE. A shortlist is then made, and the top proposals are invited to an interview (done remotely, ca. 1 hour). Applicants will be provided with comments prior to the interview to provide them with the opportunity to add further details to their applications. The interview will only be focused on the technical feasibility and not on the scientific merit.

Assessment criteria

The scientific assessment is mainly done with respect to the potential impact in the specific field of science where the software will be used. Relatively less importance will be paid to the scientific track record of the applicant. Furthermore, the proposed software and/or implementation is evaluated relative to the state-of-the-art in the field, and if a successful porting project would fill a gap in the currently available software on LUMI.

The technical assessment is mainly done with respect to the technical feasibility of porting the software to AMD GPUs and subsequently running on the LUMI supercomputer. These include both:

• technical aspects of the software, such as programming language, the use of libraries and frameworks, and the internal data structures and algorithms, and
• the practical aspects, such as the project plan and the applicant’s ability to participate in the proposed project. In particular, the software development track record of the applicant (or applicants), and the balance of skills in the final project team, which will include staff from the LUMI CoE and the LUMI User Support Team, will be taken into account.

Projected software speed-ups or preliminary benchmarks are helpful in the evaluation but are not required.

Don’t hesitate to contact the LUMI User Support Team if you need any assistance.