Success Stories (DCH)
- We went the “whole length” to set the DCH folks up with their monitoring in the Counting House
- Before that they would take data, transfer it to RCF, fire up STAF, look at the data,…
- Now: Take data, look at the results right away.
- Doesn’t sound too tricky, we have done something like that, well, in April 1997, but here...
- we have wrapped STAF modules, PHOOL, PhHistogramFactory, basically the whole offline environment
- shared library versions have to match
- both sides (RCF and ONCS) have their own set of version constraints (ROOT version, egcs versions, libstdc++, and so on
- wrapped STAF and “big-event” DD are true memory hogs (had to tweak the machine setups, 0.5GB virtual memory)
- The routine operation is more like near-line monitoring, analysis is done from a file from a very short run
- Tassilo and I funneled those data through a DD pool, no problem.
- No difference whether you read from file or from a DD pool.