Production to merge histograms are slightly different from normal data processing ones. There are two different type of input files to consider: BRUNELHIST and DAVINCIHIST, so in the Input Data section of the request, it must be selected both file types.

  • Screenshot of the Histo Merging request:
    HistoMerge.PNG

The template to choose is everyThingElse_run.py. Type HistoMerge as production to be launched, GroupSize must be equal to 999999, as we create one single merged file per run. Output Data Storage Element must be CERN-HIST-EOS. The plugin name must be ByRunSizeWithFlushRootMerging and the removeInputs flag must be set to True in order to delete the unmerged files.

-- MarcoCorvo - 2016-10-19

Topic attachments
I Attachment History Action Size Date Who CommentSorted ascending
PNGpng HistoMerge.PNG r1 manage 30.7 K 2016-10-19 - 16:27 MarcoCorvo Screenshot of the Histo Merging request

This topic: LHCb > WebHome > LHCbComputing > HistoMergingProd
Topic revision: r3 - 2017-04-13 - MarcoCorvo
 
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