externe Veranstaltungen

28. April 2022 bis 29. April 2022 ganztags

Online Course: Shared memory parallelization with OpenMP


The focus of this 2 days course is on shared memory parallelization with OpenMP for dual-core, multi-core, shared memory, and ccNUMA platforms.

This course teaches OpenMP starting from a beginners level. Hands-on sessions (in C and Fortran) will allow users to immediately test and understand the OpenMP directives, environment variables, and library routines. Race-condition debugging tools are also presented.

Content Levels: Beginners = 6:00h (50%) + Intermediate = 4:00h (33%) + Advanced = 2:00h (17%)

This course is a PRACE training event. It is organized by the VSC Research Center, TU Wien, in cooperation with the High-Performance Computing-Center Stuttgart (HLRS). This course has been originally developed by Rolf Rabenseifner (HLRS).

Agenda & Content:

1st day

08:45    Join online
09:00    Welcome
09:10    Introduction to modern hardware (talk)
10:10    An overview of OpenMP (talk)
10:35    Coffee
10:50    OpenMP programming and execution model (talk+practical)
12:30    Lunch
13:30    OpenMP worksharing directives (talk+practical)
15:00    Coffee
15:15    More OpenMP (talk+practical)
16:00    Summary (talk) + Q & A
16:30    End of first day

2nd day

08:45    Join online
09:00    How to write correct OpenMP programs (talk)
09:30    Intel Inspector XE (demo+practical)
10:30    Coffee
10:45    How to write efficient OpenMP programs (talk)
11:00    Heat equation (talk+practical)
12:30    Lunch
13:30    Heat equation (practical — continued)
14:00    Vectorization with OpenMP (talk)
14:25    Thread affinity in OpenMP (talk)
15:00    Coffee
15:15    The taskloop directive (talk+practical)
16:30    End of second day (course)


For the hands-on sessions you should know how to work on the Unix/Linux command line and be able to program in either C/C++ or Fortran.

Hands-on labs:

Participants can choose between using their own laptops or any system they have access to that provides an OpenMP enabled compiler, it's even possible to do the exercises in Google Colab. Alternatively, participants can ask for a training user account at the VSC for the duration of the course.
Accepted participants will be contacted a few days before the course and asked to do a short PRE-ASSIGNMENT that has to be completed before the course starts.


Lukas Einkemmer, Philipp Gschwandtner, and Martina Prugger (lectures+practicals; University of Innsbruck), Claudia Blaas-Schenner and David Fischak (practicals only; VSC Research Center, TU Wien)

Language: English

Prices and Eligibility:

This course is a PRACE Training Center (PTC) event. Therefore, the course is open and free of charge for people from academia and industry from the Member States (MS) of the European Union (EU) and Associated/Other Countries to the Horizon 2020 programme.



TU Wien
Zoom Online



VSC Research Center, TU Wien, in cooperation with the High-Performance Computing-Center Stuttgart (HLRS). This course has been originally developed by Rolf Rabenseifner (HLRS).
Claudia Blaas-Schenner











Anmeldung erforderlich


Please register via the PRACE registration page with your official e-mail address to prove your affiliation.

events.prace-ri.eu/event/1350/registrations/997/, öffnet eine externe URL in einem neuen Fenster

Registration period is from 15 February 2022 to 7 April 2022, and follows the "first come – first served" principle. For the online course we can take a maximum of 40 persons. Additional registrations will be added to a waiting list.