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PC 2015-01-29 Computing Questions¶
Email from Durga:
Hi Chris, Some questions about MC production came up at the GRID meeting earlier today. Specifically about the resource needs from the GridPP point of view. I think it ties with our analysis and physics needs and plans. I'm afraid it's more like a set of questions now -- something you want to think about or bring up at the analysis meeting? I'm listing the issues below for completeness: --> Do we want to do a batch MC for every DAQ run setting that we take? ----- I imagine we do MC production for the 'matrix', but when upstream magnet currents change during data-taking, do we need to regenerate G4BL and run MC+reco against each change? ----- Does this have to go with the real-data reconstruction on the 24 hour timescale? Means we'll have to know/flag which runs to simulate? --> What is the level of access expected for the MC batch output? --- all MC output available via http? [ Imperial/Brunel] Or leave the bulk on it tape and have only limited [ which? ] data on disk for open access? --> In addition to the matrix, what are the MC configurations we want to simulate? ---- How many configurations? How much for each? Presumably some can take the same beam input, while others require specific beam generation? Regards, Durga
Updated by Rogers, Chris almost 9 years ago ยท 1 revisions