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 27 Feb 2007, Piotr Zolnierczuk, Forum, event builder scalability
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 27 Feb 2007, Stefan Ritt, Forum, event builder scalability
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27 Feb 2007, John M O'Donnell, Forum, event builder scalability
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27 Feb 2007, Stefan Ritt, Forum, event builder scalability
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02 Mar 2007, Kevin Lynch, Forum, event builder scalability
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03 Mar 2007, Piotr Zolnierczuk, Forum, event builder scalability
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03 Mar 2007, Stefan Ritt, Forum, event builder scalability
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Message ID: 354
Entry time: 27 Feb 2007
In reply to: 353
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| Author: |
Stefan Ritt |
| Topic: |
Forum |
| Subject: |
event builder scalability |
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> Hi there:
> I have a question if there's anybody out there running MIDAS with event builder
> that assembles events from more that just a few front ends (say on the order of
> 0x10 or more)?
> Any experiences with scalability?
At the MEG experiment at PSI we run with 5 front-ends (later 8), each running at
about 10 MB/sec. This gives an overall rate of 50MB/sec without any problem. The
CPU load on the backend (2.6 GHz dual Xenon) is 30% for the event builder and 26%
for the logger. The DANCE experiment at Los Alamos runs 17 front-ends if I'm not
mistaken (John?). |