The Abel computer cluster

Named after the famous Norwegian mathematician Niels Henrik Abel (1802 – 1829), the Linux cluster at UiO is a shared resource for research computing capable of 258 TFLOP/s theoretical peak performance. At the time of installation Abel reached position 96 on the Top500 list of the most powerfull systems in the world.

Abel is an allround, allpurpose cluster designed to handle multiple concurrent jobs / users with varying requirements. Instead of massively parallell applications, the primary application profile is for moderately to smaller parallel applications with high IO and/or memory demand. Frequent users of Abel are from the life sciences, astrophysics, geophysics, chemistry and also humanities. All compute nodes on the cluster have a minimum 64 GB RAM, 16 physical CPU cores and are connected by FDR (56 Gbps) Infiniband.

Abel is a joint investment by the Research Council of Norway and UiO, and access is primarily through the Notur project. The cluster is available to all researchers.


Current Status


Please use hpc-drift at for your questions and requests.


Abel operational log

  • Problems with /work file system on Abel Jun 21, 2016 03:25 PM

    We are currently experiencing problems with the /work file system on Abel. We are working on identifying and fixing the problem, and will update as soon as we know more.

    Update: After restarting the file system daemons yesterday, /work seems to work fine again. We are in contact with beegfs support to find out why the problem occured.

  • R 3.3.0 May 31, 2016 03:17 PM

    R 3.3.0 has been installed, and will become the default version in about two weeks.

    Along with the new version of R, a few packages have been installed or upgraded in order to build R:

    • bzip2 1.0.6
    • xz 5.2.2
    • pcre 8.38 (upgrade)

    Note that as of version 3.3.0, we no longer install the BioConductor packages globally on Abel. The reason is that these packages are upgraded quite often, so globallly installed versions will quickly become outdated, and upgrading them might break user code. Therefore it is better that users install the BioConductor packages themselves.

  • Network problems May 11, 2016 11:28 AM

    Due to a switch failure, Abel is inaccessible at the moment. We are working on the issue, but at this point it is not certain when we will be back online.

    Update: Fautly switch has been fixed and Abel is now in production.

    Due to the network outage a number of jobs failed to start. Those jobs need to be resubmitted manually. We encourage all users to check the status of their runs.

Further assistance or advice?

Do you need help with the research computing services or advice on how best to use the resources? Send an e-mail to the Department for Reserach Computing.

RCS Course Week

Nov 8, 2016 09:00 AM - Nov 10, 2016 09:00 AM, Ole-Johan Dahls hus and Kristen Nygaards hus

Training in using High-performance Computing (HPC) efficiently, for Abel and Colossus (TSD) users,  The course is  open for all users of Notur systems, but examples and specifics will pertain to Abel and Colossus.

Newsletter - University of Oslo
  • Abel Newsletter #2, 2015 May 9, 2016 07:59 AM

    CPU allocation and advanced user support deadlines, our new software request system, and our fall course week, along with the usual list of updated tools and applications now available on Abel or through the Lifeportal.

  • Abel Newsletter #1, 2016 May 9, 2016 07:59 AM

    Spring course week, application deadline for CPU time through Notur, interesting conferences and external courses, along with the usual list of updated tools and applications now available on Abel or in the Lifeportal.