Last update:
Apr 1, 2000
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Resource Management in, and Tests of, CDF Run II Data Handling
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Elizabeth Buckley-Geer1,
Stephan Lammel1,
Fedor Ratnikov2,
Terence Watts2
- Fermilab
- Rutgers University
Speaker:
Terence Watts
The next collider run of the Tevatron, Run II, will start in March of
2001. The CDF experiment expects to record at least 1 PetaByte of
data. Analysis of such a volume by a collaboration of over 450
physicists requires management of limited resources such as CPU time,
disk space, tape drives, and I/O bandwidths. The CDF data handling
strategy is based on the use of batch queues and a disk inventory
manager.
The disk manager software will try to match the presentation of data
on staging disk for a user job to the rate of processing of that
job. And it will minimize duplicate staging of the same dataset to
multiple jobs. For the batch system, we will use the Load Sharing
Facility, LSF, from Platform Computing, and this will manage CPU
resources and tape drives.
A prototype system was built and heavily exercised to evaluate
strategy and performance. A first mock data challenge is planned as a
connectivity test whose purpose is to identify overlooked components
in the data flow. Results from both tests will be presented.
Presentation:  | Short Paper:  |
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