[Halld-offline] Offline Software Meeting Minutes, April 29, 2015

Thu Apr 30 11:32:50 EDT 2015

Thanks, Hovanes, for clearing this up, and sorry for the confusion. I will
update CCDB accordingly.

---Sean
On Thu, Apr 30, 2015 at 9:48 AM Richard Jones <richard.t.jones at uconn.edu>
wrote:

>  Hovanes,
>
>  That is what I thought. Thank you for the clarification, Hovanes.
>
>  -Richard Jones
> On Thu, Apr 30, 2015 at 10:38 AM, Hovanes Egiyan <hovanes.egiyan at gmail.com
> > wrote:
>
>> Hi Sean,
>> MO signal that we have is at ~499MHz (and it will be prescaled before
>> arriving to TDCs to much lower frequency),
>> but the beam bunches themselves should now arrive to Hall D and the
>> tagger hall at ~249MHz frequency.
>> Hovanes.
>>
>>
>> On 04/30/2015 09:53 AM, Sean Dobbs wrote:
>>
>  Hi Richard,
>>
>> Are you using the latest version of the CCDB constants? I updated the
>> rf_period yesterday based on the results of a meeting Paul Mattione had on
>> the MO.
>>
>> I see the following results:
>>
>> farm1401> ccdb dump /PHOTON_BEAM/RF/rf_period:2933
>> #Spring running is at ~2ns period
>> 2.004008
>>
>> From HDGeant:  (Run 2933)
>>
>>  settofg: beam_bucket_period_ns set to    2.0040081
>>
>>
>>  ---Sean
>>
>>
>> On Thu, Apr 30, 2015 at 8:44 AM Richard Jones <richard.t.jones at uconn.edu>
>> wrote:
>>
>>>  Hello Mark,
>>>
>>>  From the minutes, "
>>>
>>>    - *HDGeant now uses RF period in CCDB*. Paul checked in a change
>>>    such that HDGeant will look up the bunch frequency from the CCDB when
>>>    simulating electromagnetic background. The current setting in the database
>>>    is 499 MHz.
>>>
>>>   I am not sure which change that refers to, but yesterday I checked in
>>> a change to HDGeant that fits this description. The current setting in the
>>> database is close to 250 MHz, not 500 MHz. This is what I see when I run
>>> hdgeant with a RUNNO set to a number in the current range, eg 2933:
>>>
>>>   settofg: beam_bucket_period_ns set to    4.0080161
>>>
>>>
>>>  -Richard Jones
>>>
>>>   On Wed, Apr 29, 2015 at 4:30 PM, Mark Ito <marki at jlab.org> wrote:
>>>
>>>> Folks,
>>>>
>>>> Please find the minutes below and at
>>>>
>>>>
>>>> https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_April_29,_2015
>>>>
>>>>   -- Mark
>>>> _________________________________________________
>>>>
>>>>   GlueX Offline Software Meeting
>>>> Minutes
>>>>
>>>> Present:
>>>>
>>>>    - *CMU*: Curtis Meyer
>>>>    - *FSU*: Aristeidis Tsaris
>>>>    - *JLab*: Mark Ito (chair), David Lawrence, Paul Mattione, Kei
>>>>    Moriya, Nathan Sparks, Justin Stevens, Simon Taylor
>>>>    - *NU*: Sean Dobbs
>>>>
>>>>
>>>> Announcements
>>>>
>>>>    - *Nightly build results on web*. Mark has put the summary of
>>>>    nightly build errors and warnings
>>>>    <https://halldweb.jlab.org/nightly/nightly_build_errors.txt> on the
>>>>    web. He led us through the email
>>>>    <https://mailman.jlab.org/pipermail/halld-offline/2015-April/002015.html>
>>>>    announcing it.
>>>>    - *HDGeant now uses RF period in CCDB*. Paul checked in a change
>>>>    such that HDGeant will look up the bunch frequency from the CCDB when
>>>>    simulating electromagnetic background. The current setting in the database
>>>>    is 499 MHz.
>>>>
>>>>
>>>> Review of minutes from April 15
>>>>
>>>> We went over the minutes from last time
>>>> <https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_April_15,_2015#Minutes>.
>>>>
>>>>
>>>> David gave us an update on his Geant4 implementation. He as put in the
>>>> FDC and FCAL and can reconstruct tracks in the FDC with resolution
>>>> comparable with those found with HDGeant. He ran into an issue with
>>>> multi-threading; a bug report has been submitted to the Geant4
>>>> Collaboration.
>>>>
>>>> Offline Monitoring
>>>>
>>>> Kei reported he has run over most of the files collected in the last
>>>> week of data-taking. The volume of data is small, it only takes a few hours
>>>> to run over everything.
>>>>
>>>> We then discussed doing a final run over the Fall data so that people
>>>> can use the data to prepare for the collaboration meeting. There is a
>>>> change to get the setting of the F1-TDC parameters from the CCDB that
>>>> Justin checked in yesterday. There are also new TOF timing constants that
>>>> we are not taking advantage of yet. In addition Lubomir also has new FDC
>>>> alignment numbers. For all of these reasons a re-run seems desirable but
>>>> time is running short to have the data available in time to be useful. We
>>>> agreed on a launch time target at the end of the day on Friday.
>>>>
>>>> There was a bit of discussion of what data we have from the current
>>>> run. Most of it is in run 2931, which is contained in just over 100 files
>>>> and has about 75 million events. Data were taken in mode 7 with an
>>>> FCAL-BCAL trigger.
>>>>
>>>> Spring 2015 Commissioning Simulations
>>>>
>>>> Sean described the conditions
>>>> <https://halldweb.jlab.org/wiki/index.php/Spring_2015_Commissioning_Simulations>
>>>> he is proposing and solicited feedback. The software has been tagged but
>>>> not released. Paul noted that the nominal position of the coherent peak is
>>>> 3.4 GeV. The gxproj4 account will be used to run the jobs.
>>>>
>>>> On a side note, Mark has put in a request to the Computer Center for a
>>>> gxproj5
>>>> <https://halldweb.jlab.org/wiki/index.php/GlueX-related_shared_accounts_on_the_JLab_CUE>
>>>> account.
>>>>
>>>> Retrieved from "
>>>> https://halldweb.jlab.org/wiki/index.php?title=GlueX_Offline_Meeting,_April_29,_2015&oldid=66573
>>>> "
>>>>
>>>>
>>>>     _______________________________________________
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>>>>
>>>
>>>
>>
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