CERN APPLICATIONS WITHIN GPMIMD2
Completely new PIAF page, including the PIAF User Guide, a description of the latest PIAF version and the plans to move PIAF from the HP cluster to the CS-2.
The interactive analysis of data was studied on the
CS-2 for GPMIMD2: CERN ported PIAF to the CS-2. PIAF is a parallel software that allows several users to query interactively huge databases in real-time. The very time consuming and dataintensive computations are distributed in parallel to eight of the 64 twin HyperSparc nodes of the CS-2.
These 100 MHz processors are powerful enough to carry out the heavy numerical calculations involved. While the data are being accessed, they are cached within the 128 MB of memory of each node. With the Meiko parallel file system, hundreds of
MegaBytes per single query can be delivered in real-time to several physicists working on the experiment.
Related images
PIAF Architecture
PIAF performance results (postcript image)
People involved at CERN
Timo Hakulinen, application
Dino Ferrero Merlino
Published papers
- T. Hakulinen, F. Rademakers
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Experience of running PIAF on the CS-2 at CERN
in: HPCN '95, High Performance Computing and Networking Conference (Lecture Notes in Computer Science no 919), Milan, 1995, eds. B. Hertzberger and G. Serazzi (Springer, Berlin, 1995) (postscript file).
Three deliverables have been written on this work and submitted to the EC.
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KA,
December 4, 1996