NAISS

August 2026


Arrhenius in stable production

Fall allocation calls to open soon, Mimer becomes Sweden AI Factory

Arrhenius supercomputer

Welcome to a new academic year

Erik Lindahl, NAISS director

Welcome to the first issue of our new monthly newsletter for NAISS users. Previously, most updates went to university representatives, but we want those of you using the infrastructure every day to hear directly about new systems, strategic developments, training and events. We’ll also rotate updates between our associate directors so you regularly hear from across the organisation.

I’m pleased that Arrhenius has been in stable production since May. This milestone is thanks to the tremendous efforts of our operations staff, software engineers and application experts, who are now helping users migrate from Tetralith, Alvis and Dardel. By year’s end, they will have supported nearly 8,000 Swedish users, as well as welcoming EuroHPC users for the first time. Thank you for your patience if response times are occasionally longer than usual.

We hope many of you will join us at the Arrhenius inauguration in Linköping on 8 September and at the NAISS User Forum in Stockholm on 6–7 October. Both events offer excellent opportunities to meet fellow users, application experts and infrastructure leaders.

Looking ahead, NAISS will expand into advanced software and AI development from 2027 to help increase the scientific impact of your research. This could include supporting the transition of widely used research codes to GPUs, as well as organising more advanced hackathons and code kitchens. We welcome your ideas on applications that could benefit your community, and encourage you to consider joining our User Support Advisory Committee to help shape future outreach and support activities.


News

NAISS Large Fall 2026 and LUMI Sweden Fall 2026 calls opening soon

The two calls open mid-September and close 16 Oct at 15:00 CEST. They will be published in the NAISS User Area. To encourage our largest users to apply for EuroHPC resources, there are upper limits on the capacity one can request in NAISS Large application rounds. The limits are both on individual compute resources an as a whole. Other news introduced this spring is that users must register publications resulting from the projects (and acknowledging the use of NAISS resources) via DOIs in SUPR, financial support is entered in a table with a row for each grant or similar instead of being a free-text field, NAISS has changed from the NAISS User Agreement to the NAISS General Terms of Use, and that users now have to acknowledge that NAISS storage resources are to be used for active data only.

Read more about allocations ›

Sample product

Mimer AI Factory becomes Sweden AI Factory

Following a strategic review of its brand positioning, Mimer AI Factory will now operate under the name Sweden AI Factory. “The new name confirms both what we do and our national mandate: to provide access and expert guidance to companies, researchers, and the public sector as they advance their AI projects,” says Sweden AI Factory Director Rossen Apostolov.

Read more ›

Events


Training

7, 14 and 21 Sep 2026

Mondays with MATLAB 2026 - Nordic HPC workshops

This is a collaboration with MathWorks, IHPC in Iceland, CSC in Finland and RTU HPC in Latvia. Mondays with MATLAB is a workshop series for researchers, educators, and students across the Nordic and Baltic region who are interested in parallel computing, AI, and large-scale computing workflows.

Online

Event page ›

Training

14 — 18 Sep 2026

NAISS Introduction Training Week

Aimed at new users. Topics covered include Linux, connecting, file transfer, software use, batch systems, running AI/ML workloads, and sensitive data handling. Participants can choose their topics of interest.

Online

Event page ›

Training

22 Sep 2026

VASP best practices on Arrhenius

This NAISS seminar presents how to run the Vienna Ab-initio Simulation Package (VASP) efficiently on the new Arrhenius system, using CPU as well as GPU nodes. A focus will be on performance for both CPU and GPU.

Online

Event page ›

Training

22 — 24 Sep 2026 & 29 Sep — 1 Oct 2026

CodeRefinery Tools Workshop

Teaches the essential tools to make full use of software, computing, and data. Covers git, reproducible research, social coding, AI-assisted development, documentation, testing, and modular code development. NAISS is a funding partner of CodeRefinery.

Online

CodeRefinery website ›

Training

2 Oct 2026

File Transfer 102

Transferring files to and from NAISS systems, with a focus on practical, hands-on use of terminal-based tools. Builds on the NAISS Introduction Training Week or Introduction Training Days.

Online

Event page ›

Conference

Lunch 6 Oct - Lunch 7 Oct 2026

NAISS User Forum 2026

The annual user forum, to be held at the World Trade Center in Stockholm. Jeff Hammond, Software Engineer from NVIDIA, will offer the keynote address. Hear updates on Arrhenius, developments in user support and allocations, and mingle with representatives from different user groups.

Stockholm

Event page ›

Training

12 — 13 Oct 2026

Basic Singularity/Apptainer Workshop

Introduction to the basic concepts of containerised software environment solutions within the Singularity/Apptainer framework.

Online

Event page ›

Conference

13 Oct 2026

Nordic AI Factory Summit

Sweden AI Factory co-organises the Nordic AI Factory Summit at Hotel Birger Jarl in Stockholm. The one-day event brings together researchers, engineers, startups, and policymakers to discuss AI infrastructure, high-performance computing, and digital sovereignty across the Nordic and European landscape. Topics include large language models, agentic AI, sovereign computing, and the EuroHPC AI Factory initiative — with a focus on real-world deployment and European AI competitiveness.

Stockholm

Event page ›

Training

19 — 22 Oct 2026

Introduction to R, MATLAB, and Julia in HPC

Introduction to the basic concepts of containerised software environment solutions within the Singularity/Apptainer framework.

Online

Event page ›

Of interest

EuroHPC Calls

Upcoming calls, including the Regular Access Mode, Extreme Scale Access Mode and more.

Read more ›

NAISS training info

An up-to-date list of the upcoming events is available on the web page.

Read more ›

Jobs at NAISS

Currently seeking AI Infrastructure Application Experts and Application Experts for AI-training within LLM (Swedish required).

Read more ›

NAISS – National Academic Infrastructure for Supercomputing in Swedennaiss.seinfo@naiss.se

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