17th VI-HPS Tuning Workshop

Enterprises & SME Research & Science
17th VI-HPS Tuning Workshop


This workshop organized by VI-HPS for the German Prace Advanced Training Centre hosted by HLRS will:

  • give an overview of the VI-HPS programming tools suite
  • explain the functionality of individual tools, and how to use them effectively
  • offer hands-on experience and expert assistance using the tools


Programme Overview
Presentations and hands-on sessions are planned on the following topics: 

  • Setting up, welcome and introduction
  • LWM2 lightweight monitoring
  • Score-P instrumentation and measurement
  • Scalasca automated trace analysis
  • Vampir interactive trace analysis
  • Periscope automated performance analysis
  • Paraver trace analysis and performance prediction
  • MAQAO performance analysis & optimization
  • MUST runtime error detection for MPI
  • MAP profiling and performance reports
  • Cray performance analysis tools

A brief overview of the capabilities of these and associated tools is provided in the VI-HPS Tools Guide.

The workshop will be held in English and run from 09:00 to not later than 18:00 each day, with breaks for lunch and refreshments. For participants from public research institutions in PRACE countries, the course fee is sponsored through the PRACE PATC program. All participants are responsible for their own travel and accommodation.

Classroom capacity is limited, therefore priority will be given to applicants with parallel codes already running on the workshop computer system (Hornet), and those bringing codes from similar Cray systems to work on. Participants are therefore encouraged to prepare their own MPI, OpenMP and hybrid MPI+OpenMP parallel application codes for analysis.

Hardware and Software Platforms
Hornet: 21-cabinet Cray Cascade XC40 system:

  • 3944 compute nodes each with two Intel Xeon E5-2680v3 'Haswell' processors (2.50GHz, 12 cores per processor, 2 hardware threads per core) and 128 GB memory
  • network: Aries dragonfly interconnect
  • software: Cray lightweight CNL kernel & MPI; Cray CCE, GCC and Intel compilers

The local HPC system Hornet is the primary platform for the workshop and will be used for the hands-on exercises. Course accounts will be provided during the workshop to participants without existing accounts. Other systems where up-to-date versions of the tools are installed can also be used when preferred, though support may be limited and participants are expected to already possess user accounts on non-local systems. Regardless of whichever systems they intend to use, participants should be familiar with the relevant procedures for compiling and running their parallel applications (via batch queues where appropriate).

The programme in detail can be found on the VI-HPS training web site.

General Information




Academic participants (i.e., members of universities or public research institutions) from Europe or PRACE countries: Please apply through the PATC web page. After your registration, you will receive an automated "congratulation"-email about your successful registration. This email implies that you have a guaranteed seat in the course and you should organize your travel.
All other participants (not from academia, or from outside Europe), or if the PATC web page is temporarily unavailable, please apply through this online registration form
Course number is 2015-VI-HPS.


for registration is Feb. 8, 2015 (extended deadline).


Members of German universities and public research institutes: none.
Members of universities and public research institutes within Europe or PRACE: none.
Members of other universities and public research institutes: 120 EUR.
Others: 400 EUR.
(includes food and drink at coffee breaks, will be collected on the first day of the course, cash only)


Programming experience in Fortran or C, some knowledge about parallel programming


HLRS is part of the Gauss Centre for Supercomputing (GCS), which is one of the six PRACE Advanced Training Centres (PATCs) that started in Feb. 2012. The mandate for the PATCs is as follows: "The PRACE Advanced Training Centres will serve as European hubs of advanced, world-class training for researchers working in the computational sciences." (see D3.2.3)
This course is a PATC course, see also the PRACE Training Portal and Events. For participants from public research institutions in PRACE countries, the course fee is sponsored through the PRACE PATC program.

HLRS is also member of the Baden-Württemberg initiative bwHPC-C5.
This course is also provided within the framework of the bwHPC-C5 user Support.

Cancelation Policy

If you cannot come to the course, please send an email to the organizer as soon as possible. This would allow us to accept additional participants from the waiting-list. There is no cancelation fee.
NO-SHOW: Registered persons that do not cancel and do not show up without any reasons are blocked for the next year on any of our workshops (because it is too expensive to produce unused copies of the slides for them).

Further courses


Shortcut-URL of this course:

and PATC web page: http://events.prace-ri.eu/event/HLRS-2015-VI-HPS


Rolf Rabenseifner
phone 0711 685 65530

Joerg Hertzer
phone 0711 685 65932