Parallelization with MPI

This course will be delivered as an HYBRID COURSE - on-site at TU Wien or online via Zoom.

On clusters and distributed memory architectures, parallel programming with the Message Passing Interface (MPI) is the dominating programming model. This 4 half-days course teaches parallel programming with MPI starting from a beginners level. Hands-on sessions (in C, Fortran, and Python) will allow users to immediately test and understand the basic constructs of the Message Passing Interface (MPI).

This course has been originally developed by Rolf Rabenseifner from the High-Performance Computing-Center Stuttgart (HLRS) and is organized in cooperation with HLRS.


 This hybrid event will take place online and at
                     TU Wien
                     Wiedner Hauptstraße 8-10
                     1040 Vienna, Austria
                     FH Schulungsraum (ground floor, red area)

Start date

Nov 22, 2022

End date

Nov 25, 2022



Entry level


Course subject areas

Parallel Programming

Programming Languages for Scientific Computing



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Prerequisites and content levels


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

Content levels:
  • Basic: 8 hours
  • Intermediate: 6 hours
  • Advanced: 2 hours

Learn more about course curricula and content levels.

Further information (fees, closing dates,...)

Please visit the course page at TU Vienna


Claudia Blaas-Schenner (VSC Research Center, TU Wien),
Simeon Harrison and Moritz Siegel (tutors; VSC Research Center, TU Wien)


1st day – 22 November 2022

08:45   Join in
09:00       Welcome (talk)
09:05       MPI overview (talk+demo)
10:30   Break / Breakout-Rooms (meet your exercise group)
10:45       Process model and language bindings (talk+demo+practical)
12:00   Break
12:10       Messages and point-to-point communication (talk+practical)
13:30   End of first day

2nd day – 23 November 2022

08:45   Join in
09:00       Ping pong benchmark - solution and results (talk+discussion)
09:10       Nonblocking communication (talk+demo+practical)
10:30   Break
10:45       Collective communication (talk+demo+practical)
12:00   Break
12:15       Optimizing MPI communication - a real world example (talk+discussion)
12:30       Short Tour: other MPI topics (talk)
13:00       Fortran and MPI - only for Fortran participants (talk)
13:30   End of second day

3rd day – 24 November 2022

08:45   Join in
09:00       Groups & Communicators (talk+practical)
10:00   Break
10:15       Virtual topologies (talk+practical)
12:00   Break
12:15       Derived datatypes (talk+demo+practical)
13:30   End of third day

4th day – 25 November 2022

08:45   Join in
09:00       One-sided Communication (talk+practical)
10:30   Break
10:45       Shared Memory One-sided Communication (talk+practical)
12:00   Break
12:15       Short Tour: MPI I/O (talk)
12:45       Best practice, Summary, Q&A (talk+discussion)
13:30   End of fourth day (course)


A link to the course material (slides and exercises) will be available at course start

Registration information

Register via the button at the top of this page.


Further information

Since this is a hybrid event, please refer to the detailed information on the Vienna course page to decide if you would like to attend online or on-site.

Registration deadline is Sunday, October 16, 2022, with priority rules. Acceptance will be approved on October 17, 2022. As long as seats are available there will be an extended registration period without priority rules.

Following your successful registration, you will receive further information approx. 1 week before the course.

For the hybrid course we can take a maximum of 30 persons. Additional registrations will be added to a waiting list.



Claudia Blaas-Schenner and Ulrike Faltin:


Further courses

See the training overview and the Supercomputing Academy pages. (at the VSC Research Center, TU Wien)

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