[Halld-offline] Offline Software Meeting Minutes, April 13, 2016
marki at jlab.org
Wed Apr 13 22:13:20 EDT 2016
Please find the minutes below and at http://bit.ly/1SBdCJO .
GlueX Offline Meeting, April 13, 2016, Minutes
There is arecording of this meeting <https://bluejeans.com/s/9spN/>on
the BlueJeans site.
* *CMU*: Naomi Jarvis, Curtis Meyer, Mike Staib
* *FIU*: Mahmoud Kamel
* *JLab*: Mark Ito (chair), Paul Mattione, Sandy Philpott, Dmitry
Romanov, Nathan Sparks, Justin Stevens, Simon Taylor
* *NU*: Sean Dobbs
1. RCDB News
* The C++ API is ready. Dmitry pointed us to therelevant section
of the RCDB wiki
<https://github.com/JeffersonLab/rcdb/wiki/Cpp>. It requires
C++11 to compile.
* SQLite versions of the RCDB are now generated nightly. You can
download the latest version
2. Collaboration Meeting, May 9-11, 2016. TheCollaboration Meeting
the offline almost two hours.
* Paul will give a talk on monitoring.
* Sean will give a talk on calibration.
* We will collectively think about other talks.
Improved JANA Locks
Paul explained the situation.
1. The locks that have been modified are specific to different "areas"
of the code; there is now differentiation between a special purpose
locks and the global thread lock. The areas are:
2. The new scheme requires use of anew JANA release: 0.7.5
3. The crucial change came in withPull request #331
4. Paul sent anemail
Monday warning us about the need for use of the new JANA release.
5. Mark released anew version of sim-recon
version 1.11.0, that incorporates these changes.
6. Paul put together awiki page
best practices for using locks with JANA, inspired by the code he
discovered during his review of the locks in our code.
7. Paul also showedsome slides
the new lock discipline versus the lack thereof showing much
improved multi-thread scaling.
Review of minutes from March 30
We went over theminutes from March 30
* *Future Trends in Nuclear Physics Computing Workshop*. Amber and
Mark had a conference call with Richard Jones, our virtual
organization representative, to plan out the next step in enhancing
JLab involvement with theOpen Science Grid
* *Access to Fairshare Information from JLab Farm*. We asked Sandy
about getting the current fairshare statistics posted somewhere. She
told us that it will be there on the new webpages that SciComp is
working on. Mark suggested that at some point someone from SciComp
should give presentation to this group about the new site.
Sean presented aslide
us up-to-date with calibration activity.
* He described the parameters of the three launches started so far.
One set of statistics not on the slide:
Launch Number Number of Farm Jobs
* The CCDB improvements he has discussed with Dmitry address ease of
handling of calibration constants and possible calibration
* The benchmark jobs are to explore performance as a function of the
number of threads. Sean is hoping that Paul's recent improvements
will help the situation here as well.
scripts that generate analysis plugin templates from the scripts
directory in the Subversion repository to a new directory of the
sim-recon repository (Git). That way these scripts will be versioned
along with releases of sim-recon. That, in turn, would disambiguate
which version of the scripts should be used with which version of sim-recon.
We all agreed that this is a good idea, but Nathan wanted to think about
whether there might be a more appropriate location than that proposed by
Paul. We agreed to let him make an alternate proposal before we make the
FADC Emulation Partial Re-Write
We looked atRichard's recent pull request
<https://github.com/JeffersonLab/sim-recon/pull/318>. The situation
seems to be well in hand.
SWIF for GlueX Users
Mahmoud reminded thatPaul's guide to SWIF for GlueX Analysis Users
been discussed previously. He is using the system himself.
* This page was last modified on 13 April 2016, at 22:07.
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