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Due to ongoing cooling issues, most COSMOS GPU nodes are currently unavailable.  Currently there are currently only two nodes with NVIDIA A100 cards and Intel processors available for GPU computing.   Check the LUNARC user guide (Read the docs website) for instructions on how to use these nodes using the batch system.   Unfortunately long queueing times are expected.LUNARC's on-demand applications

https://www.lunarc.lu.se/article/limited-availablity-cosmos-gpu-nodes - 2026-06-03

Resolving problems in HPC applications, in particular parallel applications, can be a complicated and time consuming task. Modern code development tools greatly assist developers, when resolving common issues such as code crashes, wrong results, memory corruption and deadlock. This seminar we will provide an introduction to the Linaro DDT (formerly known as ARM DDT and Allinea DDT) debugger, which

https://www.lunarc.lu.se/article/debugging-hpc-applications-7-october-2025 - 2026-06-03

This training seminar provides a first introduction to the UNIX/LINUX environment.  It is aimed at new users of UNIX and will discuss UNIX skills required to work on a typical HPC cluster, such as provided by LUNARC, NAISS, and other Swedish Universities.  Topics include manipulating files and directories, editing file contents and the development of simple scripts, such as required for job submis

https://www.lunarc.lu.se/article/introduction-unixlinux-command-line-22-september-2025 - 2026-06-03

Message Passing is presently a widely deployed programming model in massively parallel high performance computing. Message Passing is suitable for programming a wide range of current computer architectures, ranging from multi-core desk top equipment to the fastest HPC systems in the world, offering several hundred thousand processing elements.This online course is at the beginners level and assume

https://www.lunarc.lu.se/article/introduction-parallel-programming-using-message-passing-mpi-16-17-23-and-24-september-2025 - 2026-06-03

This event explains key features of a contemporary HPC cluster, such as deployed within NAISS and by LUNARC.  It will explain the principles behind the job scheduler and how the scheduler can be used to accomplish your computational work in an efficient manner.  The examples will utilise the SLURM scheduler, which is deployed on the NAISS and LUNARC resources.The event is organised as an online se

https://www.lunarc.lu.se/article/cluster-architecture-and-job-submission-2-september-2025 - 2026-06-03

This event explains key features of a contemporary HPC cluster, such as deployed within NAISS and a number of Swedish universities.  It will explain the principles behind the job scheduler and how the scheduler can be used to accomplish your computational work in an efficient manner.  The examples will utilise the SLURM scheduler, which is deployed on the NAISS and university resources.The event i

https://www.lunarc.lu.se/article/running-jobs-clusters-25-november-2025 - 2026-06-03

This course will be rescheduled for a later time.Comments/QuestionsFor comments and questions, please comments and questions on these training events should be sent to NAISS using the support form in SUPR: https://supr.naiss.se/support/.

https://www.lunarc.lu.se/article/introduction-pandas-data-science-10-11-march-2026 - 2026-06-03

The LUNARC team would like to wish all users and friends a merry Christmas and a Happy New Year.Over the Christmas break until 9th January LUNARC support will be limited and response times may be longer than usual.  We look forward to again working with you in 2026.   

https://www.lunarc.lu.se/article/lunarc-support-over-christmas-holidays - 2026-06-03

This course introduces students to high-performance array computing in C++ using the Eigen library, a versatile template library for linear algebra, matrices, and vectors. Participants will learn to leverage Eigen's expressive syntax and optimized computations for efficient numerical operations. The course covers fundamental concepts such as matrix operations, vector manipulations, and array broad

https://www.lunarc.lu.se/article/array-computing-c-using-eigen-5-march-2026 - 2026-06-03

Login on LUNARC's Cosmos system has been re-enabled after updating the system software for a security vulnerability. User wishing to connect should do so.  If you encounter issues, please report to LUNARC support form (on supr.naiss.se).Unfortunately some jobs running on COSMOS have been lost and the affected users need to re-submit these jobs.Once again, LUNARC apologises for any inconvenience ca

https://www.lunarc.lu.se/article/cosmos-login-re-enabled - 2026-06-03

The LUNARC HPC desktop also referred to as "ThinLinc" has been re-enabled after resolving the security issues.  For more information on the HPC desktop, please connect to our user guide:Section on the LUNARC HPC desktop in the user guide (on readthedocs.io)If you encounter issues or have questions, please contact LUNARC support using our support page:Accessing LUNARC support via the support page

https://www.lunarc.lu.se/article/lunarc-hpc-desktop-thinlinc-re-enabled-after-security-upgrade - 2026-06-03

There will be a service stop for all LUNARC systems from 8th until 10th of June 2026.  The service stop is scheduled to start at 8:00 in the morning of the 8th of June and systems are expected to be back in service at 17:00 on 10th of June.  The service stop is required to facilitate various upgrades to the LUNARC infrastructure, which can not be accomplished during normal user service. During the

https://www.lunarc.lu.se/article/lunarc-service-stop-8-10-june-2026 - 2026-06-03

Researchers use LUNARC in different ways, for example to work with larger datasets, run computational analyses, or access specialised software and environments.  LUNARC is currently exploring how web-based research environments can better support different research practices across disciplines at Lund University. As part of this work, we are organising a small, exploratory workshop where researche

https://www.lunarc.lu.se/article/supporting-research-practice-workflows-challenges-and-needs-may-2026 - 2026-06-03

We are currently working to improve our services and explore new ways of making advanced computational tools more accessible. This survey aims to better understand the needs of both current users and potential new users with no current experience of LUNARC resources.The results will be used to:Guide the development of future servicesIdentify short comings in current resource provisioningThe survey

https://www.lunarc.lu.se/article/lunarc-user-survey-2026 - 2026-06-03

Vi får förfrågningar om att hålla föreläsningar om artros i olika sammanhang och har ibland möjlighet att göra det, vilket då uppskattas av alla inblandade! På bilden ser ni Andrea Dell'Isola under en föreläsning som han blev inbjuden att hålla i slutet av 2022. Andrea Dell'Isola, biträdande forskare och postdoc arbetar vid enheten för klinisk epidemiologi, ortopedi, vid Lunds universitet. Han är

https://www.artrosportalen.lu.se/artikel/uppskattad-forelasning-av-andrea-dellisola - 2026-06-03

I denna reportageserie får du veta mer om hur det kan gå till när en patient först får träffa en specialistläkare i ortopedi för att därefter eventuellt sättas upp i kö för operation och allt vad det innebär. Vi kommer i reportageserien ge dig en inblick i hur det kan gå till vid olika besök i vården, i väntan på och vid en protesoperation. Kanske väntar du eller någon i din närhet på ett besök ho

https://www.artrosportalen.lu.se/artikel/reportage-mot-fatima-i-vantan-pa-operation - 2026-06-03

I denna reportageserie får du veta mer om hur det kan gå till när en patient först får träffa en specialistläkare i ortopedi för att därefter eventuellt sättas upp i kö för operation och allt vad det innebär. Vi kommer i reportageserien ge dig en inblick i hur det kan gå till vid olika besök i vården, i väntan på och vid en protesoperation. Kanske väntar du eller någon i din närhet på ett besök ho

https://www.artrosportalen.lu.se/artikel/reportage-fatima-gor-dig-redo-operation - 2026-06-03

I denna reportageserie får du veta mer om hur det kan gå till när en patient först får träffa en specialistläkare i ortopedi för att därefter eventuellt sättas upp i kö för operation och allt vad det innebär. Vi kommer i reportageserien ge dig en inblick i hur det kan gå till vid olika besök i vården, i väntan på och vid en protesoperation. Kanske väntar du eller någon i din närhet på ett besök ho

https://www.artrosportalen.lu.se/artikel/reportage-fatima-dags-operation - 2026-06-03

Det finns ett välkänt samband mellan socioekonomisk status och hälsa, där personer med lägre socioekonomisk status tenderar att, generellt sett, ha sämre hälsa och ökad dödlighet. I ett nytt avhandlingsarbete av Maria Lindéus, doktorand vid Enheten för klinisk epidemiologi vid Lunds universitet, har sambandet mellan socioekonomisk status och utfall relaterade till benbrott och artros undersökts. A

https://www.artrosportalen.lu.se/artikel/doktorsavhandling-finns-det-en-koppling-mellan-socioekonomisk-status-och-artros - 2026-06-03

I denna reportageserie får du veta mer om hur det kan gå till när en patient först får träffa en specialistläkare i ortopedi för att därefter eventuellt sättas upp i kö för operation och allt vad det innebär. Vi kommer i reportageserien ge dig en inblick i hur det kan gå till vid olika besök i vården, i väntan på och vid en protesoperation. Kanske väntar du eller någon i din närhet på ett besök ho

https://www.artrosportalen.lu.se/artikel/reportage-mot-sven-som-vantar-pa-en-operation - 2026-06-03