ONLINE COURSE – VSC Training Course: Introduction to Working on the VSC-3 Cluster, March 17, 2020


    This course will be delivered online at the planned date and time:
    Tuesday, March 17, 2020, 9:00 – 13:00 (online course)

    Details will be provided by email later on today,
    but only to registered participants (waiting list and accepted).

    This is necessary because of the current COVID-19 measures enforced by the Austrian government for all Austrian universities classroom teaching is not possible at TU Wien at least until 16 April 2020.



    This course is from beginners level (the first steps on a supercomputer) to intermediate level (some experience on VSC-3 or an other compute cluster).

    In this course we will help you getting started on the VSC-3 cluster, Austria's most powerful supercomputer. With running and developing software on a supercomputer there are many similarities and fewer but crucial differences compared to your desktop PC. Focusing on hands-on teaching throughout the course, you will immediately try out what you've heard and adapt it to your own needs.

    This lecture is equally relevant to those who will merely be running existing software as to those who will develop scientific codes (however, without actually teaching supercomputer programming – if you would like to learn parallel programming, please refer to our MPI- or OpenMP-courses).

    Agenda (preliminary) & Content:

    09:00 - 09:15   Supercomputers for beginners: login vs. compute nodes, shared vs. distributed memory
    09:15 - 09:30   Connecting to VSC-3 – special topics only: OTPs, passwords, ssh-keys, backup policy
    09:30 - 09:50   Module environment and available software, compiling and linking your own code
    09:50 - 11:20   Submitting batch jobs to SLURM: partition and QoS, MPI – srun vs. mpirun
    11:20 - 11:50   Finding out what your job is actually doing: node access, job control, profiling
    11:50 - 12:10   File storage options available & choosing the appropriate one depending on the purpose
    12:10 - 12:20   Special types of hardware (GPUs, KNLs) available & how to access them
    12:20 - 12:25   Got stuck? – Get support (how to write a support ticket)
    12:25 - 12:30   Wrap-up and next steps
    12:30 - 13:00   Q&A session
    13:00 - 14:00   Lunch break (lunch is not included)
    14:00 - 16:00   Individual support (on appointment during the morning session only)


    You should be able to work on the Linux command line and be familiar with login to a remote Linux machine. Otherwise please take our Linux-course prior to this course.

    We suggest that you bring along your own laptop to benefit most from the hands-on exercises.
    Please make sure, that Opens external link in new windoweduroam is properly configured on your laptop, so that access to VSC-3 is possible during the course. If you use a Windows laptop please install the following software packages prior to the course: Opens external link in new windowPuTTY and Opens external link in new windowFileZilla or Opens external link in new windowwinscp.

    Alternatively, you can also work on one of the Linux PCs available in the course room, especially if this rather corresponds to your normal workflow.

    You should work with your own user account on VSC-3 during the course. If you do not yet have an own account we will provide a training user account for the course.


    VSC Team (Claudia Blaas-Schenner, Siegfried Höfinger, Dieter Kvasnicka, Balazs Lengyel, Irene Reichl, Markus Stöhr, Jan Zabloudil)


    Presentations will be in English, support during the hands-on sessions is available both in English or German.

    Date, Time, and Location:

    17.03.2020, 09:00 - 16:00,
    FH Schulungsraum (TU Wien, Wiedner Hauptstraße 8-10, ground floor, red area; the room entrance is thru Internet-Raum FH1 or FH1A)


    Registration for the waiting list only (this course is fully booked), no confirmations will be sent.

    Opens external link in new windowWaiting list – Registration form – for users (or soon to be users) of the VSC-3 cluster only


    This training is for users (or soon to be users) of the VSC-3 cluster only.

    This course is free of charge and coffee/tea/juice & cookies will be provided (lunch is not included).

    Slides & Examples:

    Opens external link in new windowVSC-Intro_login_setup [pdf] - instructions how to get ready for the hands-on labs

    Opens external link in new windowSlides [html] and examples - VSC Team: Introduction to Working on the VSC-3 Cluster

    Course Organizer / Contact:

    Claudia Blaas-Schenner,


    Training events of VSC:

    Opens external link in new