Speaker
H. Schwarthoff
(CORNELL UNIVERSITY)
Description
The CLEO collaboration at the Cornell electron positron storage ring
CESR has completed its transition to the CLEO-c experiment. This new
program contains a wide array of Physics studies of $e^+e^-$
collisions at center of mass energies between 3 GeV and 5 GeV.
New challenges await the CLEO-c Online computing system, as the
trigger rates are expected to rise from < 100 Hz to around 300 Hz at
the J/Psi production threshold, with a moderate increase in data
throughput requirements. While the current Solaris and VxWorks based
readout system will perform adequately under those conditions, there
is a desire to improve the performance of the central components to
extend monitoring capabilities and provide larger safety margins.
The solution, as in most modern particle detector systems, is to
deploy Linux on Intel architecture computers for the performance
critical applications.
For reasons of hardware and software availability, the existing CLEO
Online and Offline computing environment has been ported to the
Linux platform. This development allows the described challenge to
be met.
In this presentation, we will report on our experiences adapting
the CLEO Online computing system for operation under Linux. Issues
regarding
third party software and code portability will be addressed.
Performance
measurements will be presented.
Authors
H. Schwarthoff
(CORNELL UNIVERSITY)
T. Wilksen
(CORNELL UNIVERSITY)
