Virtual Institute — High Productivity Supercomputing

7th VI-HPS Tuning Workshop (HLRS, Germany)


March 28-30, 2011


HLRS, Stuttgart, Germany


This workshop 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

Performance analysis tools from Cray and Rogue Wave will also be featured.


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. There is no fee for participation, however, 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 systems, and those bringing codes from similar systems to work on. Participants are therefore encouraged to prepare their own MPI, OpenMP and hybrid OpenMP/MPI parallel application codes for analysis.

VI-HPS Tools


  • PAPI is a free library interfacing to hardware performance counters developed by UTK-ICL, used by many tools.
  • Periscope is an automatic performance analysis tool using a distributed online search for performance bottlenecks being developed by TUM.
  • Scalasca is an open-source toolset developed by JSC & GRS that can be used to analyze the performance behaviour of MPI & OpenMP parallel applications and automatically identify inefficiencies.
  • Vampir is a commercial framework and graphical analysis tool developed by TUD-ZIH to display and analyze trace files.
  • VampirTrace is an open-source library for generating event trace files from C, C++, Fortran and Java codes, which can be analyzed and visualized by Vampir.
  • TAU is a performance system for measurement and analysis of parallel programs written in Fortran, C, C++, Java & Python.


Hardware and Software Platforms

The local HPC systems at HLRS will be the primary platforms for the workshop, with priority for improved job turnaround and local system support. Course accounts will be provided for those who need them.


The VI-HPS tools support and are also installed on a range of HPC platforms, including:


Other systems where up-to-date versions of the tools are installed can also be used when preferred, though support may be limited. Participants are expected to already possess user accounts on non-local systems they intend to use, and should be familiar with the procedures for compiling and running parallel applications on the systems.

Further information and registration



Brian Wylie (JSC), phone +49 2461 61-6589
Rainer Keller (HLRS), phone +49 711 685-65858