Annual Report 2010 - Fachgruppe Informatik an der RWTH Aachen ...

Other Activities
Awards
ICPP 2010 Best Paper Award
Our team won the Best Paper Award of the International Conference on Parallel Processing
(ICPP) 2010 in San Diego, California. The award was given to the authors David Böhme,
Markus Geimer, Felix Wolf, and Lukas Arnold for their paper entitled “Identifying the root
causes of wait states in large-scale parallel applications”. The work is a collaborative effort
between our group and the Jülich Supercomputing Centre.
The article introduces a scalable technique that enables an improved understanding of how the
effects of load imbalance, a well-known problem of many simulation programs that prevents
them from exploiting the full power of large and expensive supercomputers such as Jugene in
Jülich, slow down program execution. The new approach, which is currently being integrated
into the Scalasca performance analysis tool, will allow more target-oriented optimizations of
such phenomena.
Academic Workshops
We co-organized the following workshops:
• 3rd Workshop on Productivity and Performance (PROPER 2010) held in conjunction with
the EuroPar 2010 Conference, Ischia/Naples/Italy, August 2010.
• Minisymposium Scalable Tools for High Performance Computing held in conjunction
with the PARA Conference 2010: State of the Art in Scientific and Parallel Computing in
Reykjavík (Iceland), June 2010.
• 15th International Workshop on High-Level Parallel Programming Models and
Supportive Environments (HIPS 2010) held in conjunction with the IEEE International
Parallel and Distributed Processing Symposium in Atlanta (USA), April 2010.
Tutorials and Short Courses
Members of our group taught in the following tutorials and short courses:
N. Allsopp, H.-J. Bungartz, M. Gerndt, J. Weidendorfer, M. Weber, F. Wolf, B. Wylie: VI-
HPS Course Profiling & Performance Analysis of Parallel Applications, King Abdullah
University of Science and Technology, Saudi Arabia, October 31 – November 1, 2010.
J. Meinke, J. Kreutz, W. Homberg, D. Becker, S. Rinke, T. Lanfear, G. Ziegler: GPU
Programming, JSC, Jülich, Germany, October 4–6, 2010.
B. J. N. Wylie, M. Gerndt, M. Weber: Practical parallel application performance
engineering using innovative tools, IEEE Int'l Conf. on Cluster Computing, Hersonissos,
Crete, Greece, September 24, 2010
M.-A. Hermanns, C. Rössel: Einführung in die parallele Programmierung mit MPI und
OpenMP im Rahmen des JSC-Gaststudentenprogramms, Jülich Supercomputing Centre,
Germany, August 10–13, 2010.
D. Cronk, M. Geimer, M. Jurenz, A. Knüpfer, Y. Oleynik, C. Siebert, W. Spear: 6th VI-HPS
Tuning Workshop, SARA, Amsterdam, The Netherlands, May 26–28, 2010.
J. Meinke, J. Kreutz, D. Eschweiler, W. Homberg, D. Becker, G. Ziegler: GPU
Programming, Jülich Supercomputing Centre, Germany, May 26–28, 2010.
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