Collaboration Meeting (Richard)
Announcements:
See also the agenda. Particularly recommended: Hot Result: Cosmic-Ray Electrons .
FSSC Report: (Eric) Not much to report. Getting ready to switch over to v9r10.
GlastRelease: (Heather) Last week we released GR v17r7, which includes new tags of Overlay and RootIo. Overlay was updated by Tracy to avoid opening and closing the input overlay files repeatedly. Instead, files are opened once and their file pointers saved for reuse in case those same files are accessed again during the same run. RootIo was updated to avoid rebuilding missing indices which is a rather time consuming activity each time files are opened. Now indices are checked and rebuilt, if necessary, when they are requested, through reading events using run and event ids - which currently would only occur through the event display. Using the new GlastRelease, overlay jobs were resubmitted and this time we avoided the extreme CPU usage we were noting when the overlay files were stored on NFS, AFS, or in xrootd. We have decided to stick with xrootd access for now, as xrootd was designed to more effectively handle the situation of many clients accessing a series of ROOT files simultaneously.
(Heather) v17r2 will be erased as long as no one objects (unlikely since no one should be using it).
(Heather) Level 1 processing, on the v15r47 branch, needs a newer version of astro, something new enough for the leap second adjustment. Should it be v3r4 or v3r4p2? (Toby) v3r4 will do. (Heather) New tag incorporating it will be v15r47p5.
(Heather) is on last lap of work needed for new LDF.
More merit variables (Tracy's written contribution, paraphrased somewhat)
They come in 3 flavors:
- Those which allow us to know what the simulated event did versus what the overlay event does
- Those which describe the overlaid Periodic Trigger event - these would be things like run number, event number, number of hits in the ACD/Cal/Tkr, etc.
- The "Pt*" variables that are associated with the overlaid PT event, versus those from the MC event.
Disk space: (Richard) Our new disks are here and 4 or 9 are now installed! That's 128 TBytes added, another 160 to come.
(Tom) is just waiting for final confirmation on u35, then will give the go-ahead to SCS to reformat. He's hopeful it will be done by later today or tomorrow.
(Tom) I & T clean-up is in progress. 6 large (4+ Tbyte) disks are being archived and are close to done.
Documentation: (Chuck) sends this report:
I've made substantial progress on the ACD, TKR, CAL software documentation project, and I expect to be able to post a rough draft to the web by the end of this week for your review. Please remember that this is only a draft, and will not be linked in to the WB until your comments, concerns, and suggestions have been incorporated. (I should note that the Overlay has not yet been included.) A reminder, this draft only covers the "Processing of Real Data", and I'll be doing a follow-up to cover simulation.In other news, there have been only two updates to the workbook, one of which was to Appendix A of the the Pulsar Analysis tutorial, updating the version of the master_pulsardbv2.fits file; we're now at v3. The other change was to the "Interactive LAT Source Catalog" page. And, as a reminder, these changes are documented (and the affected pages are linked in) on the LAT "Workbook Change Log", which you can access from the workbook's main splash page.
ACD updates (Heather) Eric has made updates along a branch of v17 for testing. Updates on the main branch should be coming before long.
SCons (Heather) summarized just about everything . There were a few more notes:
(Navid) will be away skiing Friday through Tuesday. Then on March 30th he'll go in for surgery to have the titanium (result of prior skiing accident) removed from his leg. He expects it will take about 6 weeks to fully recover, including 2 weeks on crutches. (Richard) Bryson will be leaving some time in May. |
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