[Hps-analysis] 2021 trigger skims

[Nathan Baltzell]

The 10x larger test is done at /volatile/hallb/hps/baltzell/trigtest3

-Nathan


> On Nov 29, 2021, at 2:52 PM, Nathan Baltzell <baltzell at jlab.org> wrote:
> 
> Hello All,
> 
> Before running over the entire 2021 data set, I ran some test jobs using Maurik’s EVIO trigger bit skimmer.   Here’s the fraction of events kept in 14750 for each skim:
> 
> fee 2.0%
> moll 3.3%
> muon 1.9%
> rndm 2.9%
> 
> In each case, it’s inclusive of all such types, e.g., moll=moll+moll_pde+moll_pair, rndm=fcup+pulser.
> 
> Are those numbers in line with expectations?  The total is 10% and not a problem if these skims are expected to be useful. The outputs are at /volatile/hallb/hps/baltzell/trigtest2 if people are interested to check things.
> 
> A 10x larger test is running now and going to /volatile/hallb/hps/baltzell/trigtest3 and should be done in the next couple hours.
> 
> ************
> 
> Note, it would be prudent to do this *only* for production runs, those that would be used in physics analysis, to avoid unnecessary tape access.  By that I mean removing junk runs, keeping only those with some significant number of events, and only keeping those with physics trigger settings (not special runs).  For that we need a run list.  I think we have close to a PB, but I remember hearing at the collaboration meeting that at least 20% is not useful for the porpoises of trigger bit skimming.
> 
> -Nathan_______________________________________________
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