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Workshop on Computational and Technological Challenges of LOFAR

15 and 16 December 2005
John von Neumann Institute for Computing (NIC), Research Centre Jülich, Germany

LOFAR NIC-Workshop 2005 Icon

Scope:

The Low Frequency Array (LOFAR) is the prototype of next generation telescopes for radio-astronomy. The scientific case for a radio telescope with much higher sensitivity than currently available includes many topical questions such as the "epoch of reionization" or the "evolution of black holes". Its realization - presently starting in the Netherlands - defines a complete shift in technology with regard to the collection of information in the radio domain: the focusing into an image plane by a dish antenna is replaced by digital processing of signal collected with very simple omni-directional antennas. This technique also enables to spread the collecting elements over an area of hundreds of km in diameter, a prerequisite if one wants to map the radio sky with sufficient angular resolution. The large area network also provides the infra-structure for sensor networks with applications in other fields, ranging e.g. from geosciences and meteorology to agriculture.

With the data transport requirements of Tbits/s and processing power needs of TFlops/s this new technique is, however, a real challenge for computing and technologies. The workshop will provide a platform for discussions between scientists and engineers from the different fields collaborating in this truly interdisciplinary project. Specifically the topics

  • Scientific challenges
  • Distributed sensor fields
  • High-speed data communication and GRID computing
  • Algorithms for data analysis and visualisation
  • Use of supercomputers and novel computer architectures

will be addressed.

Organisers:

R.J. Dettmar, NRW Research Association Astro-Interferometry
K. v.d. Schaaf, ASTRON, NL
Th. Lippert, NIC Jülich

Local organisers:
Wolfgang Gürich
Dr. Sabine Höfler-Thierfeldt
John von Neumann Institute for Computing
52425 Jülich
Germany

Workshop secretary:

Mrs. Erika Wittig
Conference Service
Research Centre Jülich
52428 Jülich
Germany

Venue:

Research Centre Jülich (Forschungszentrum Jülich FZJ)
Central Institute for Applied Mathematics

Hörsaal (Lecture room, Room No. 006)
Building 16.3, Entrance E3 ("old" ZAM building, ground floor)

Programme:

Thursday, December 15th, 2005

13:00Registration, snacks & coffee
in ZAM Foyer, 1st floor, "old" building
14:00Opening Session
Thomas Lippert, Research Centre Jülich
14:15Introduction to LOFAR
Ralf-Jürgen Dettmar, University of Bochum
14:45The Initial LOFAR Key Science Projects
Heino Falcke, ASTRON
15:10Key Science Projects and Science Network in Germany
Rainer Beck, MPI for Radioastronomy Bonn
15:35LOFAR System Overview
Kjeld van der Schaaf, ASTRON
16:00Coffee break
16:30LOFAR Station System
Andre Gunst, ASTRON
16:55Cosmic Ray Detection
Lars Bähren, ASTRON
17:20LOFAR Networks
Peter Maat, ASTRON
17:45 X-WiN - an Infrastructure for High Performance Applications
Martin Wilhelm, DFN-Verein, Berlin
18:10 AstroGrid - a Community Project of the German e-Science Programme
Matthias Steinmetz, Astrophysical Institute Potsdam
18:45End of session
18:50Bus transfer to Burg Obbendorf
19:00Conference Dinner at Burg Obbendorf at Hambach
22:00Bus transfer to the hotels at Jülich

 

Friday, December 16th, 2005

08:00Bus transfer from the hotels to Research Centre Jülich
08:30Grid-enabling LOFAR: a grid-based approach to post processing and data archiving
Peter-Paul Borsboom, SARA, Amsterdam
08:55A dCache based Storage Element for Data Grids
Boris Orth, Research Centre Jülich
09:20LOFAR Central Processing Facility
Chris Broekema, ASTRON
09:45Scalability and BlueGene/L
Arnold Meijster, University of Groningen
10:10SCSQ, SuperComputer Stream Queries - an Implementation of a Stream Data Management System for BlueGene
Erik Zeitler, University of Uppsala
10:35Coffee break
11:05N-Body Simulation - an Example for High Performance Computing and Visualization
Andreas Ernst, Research Centre Jülich / University of Heidelberg
11:30Distributed, Interactive Visualization, Feature Detection and Collaboration
Ulrich Lang, University of Cologne
11:55A Process Coordinator for the Planck-Satellite
Hans-Martin Adorf, MPI für Astrophysik, Garching
12:20High Throughput Data Processing and Analysis Services Toolkit for LOFAR
Rainer Stotzka, Research Centre Karlsruhe
12:45 Closing remarks
13:00End of the workshop

 

Programme as pdf-file:  Programme of the Workshop on the Computational and Technological Challenges of LOFAR (PDF, 69 kB)



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