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LHCbComputing
CM document discussion
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Clarifications, e.g. on trigger simulation
Made changes to text to hopefully clarify some of the questionsHow to iterate?
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Work in Progress – e.g. Data Placement
Difficult to be precise aboutwork in progress, prefer tostay vague than make falsepromises
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MDST.DST
m MDST.DST (was ALL.DST) intended to facilitate migration to MDSTo This is work in progresso Cost is temporary, will be removed when migration is
completeP Calling it “indifference” seems harsh
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Cost of data preservation
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Simulation
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Simulation
m Two questions:o What are ideas for reducing LHCb simulation time
P Answer is improved use of transport cuts, adapt granularity of detector to precision required, do not simulate spillover events in detectors that are insensitive to it (Calo, Muon)
P Work in progress, and details too technical to be described briefly
o Common improvements in G4, vectorisation etc.P Indeed. Already described in common chapter. Does it
need to be expanded?
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Resources estimates
m Estimates foe 2015 are now different from request just made to C-RSGo How do we ensure consistency?