[Halld-offline] Learning to use hdgeant

Naomi Jarvis nsj at cmu.edu
Sat Feb 18 21:12:10 EST 2017

setenv JANA_CALIB_CONTEXT "variation=mc calibtime=2017-01-31”

works for me.


On Feb 17, 2017, at 5:00 PM, Sean Dobbs <s-dobbs at northwestern.edu> wrote:

> Hi Reinhard, Viren,
> First a general comment:  If you are generating simulated data, you should not use the "default" CCDB variation - it will give you incorrect results that will undoubtably leave you confused and unhappy.  I suggest starting with the "mc_generic" variation, which provide a default run-independent set of calibrations & conditions.  When you're ready to generate simulations that correspond to actual data taking, you can use the "mc" variation.
> It can be selected by setting the environment variable 
> JANA_CALIB_CONTEXT="variation=mc_generic"
> To your question, could you please describe how you are running mcsmear?  It seems like you are running hdgeant in the mode where it automatically launches mcsmear?
> Cheers,
> Sean
> On Fri, Feb 17, 2017 at 4:49 PM Reinhard Schumacher <schumacher at cmu.edu> wrote:
> Hello Group
> I was trying to learn how to run hdgeant and in the process I encountered this error (see screenshots attached below): The CCDB context I am loading from the SQLite database does not correspond to he “default” version. The program normally outputs the hdgeant.hddm file but throws this error during the smearing process. I wonder what I need to change in my environment to get this to work. Currently my JANA_CALIB_URL = sqlite:////home/gluex/ccdb/sqlite/ccdb_2017_02_02.sqlite. I tried the latest version: ccdb_2017_02_07.sqlite as well, but it didn’t work.
> Any guidance is much appreciated. 
> Thanks in advance
> Viren Bajaj
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