OWG Meeting 28-Apr-2010

Agenda

• Announcements
• Review of minutes from 31-Mar-2010 meeting
• Collaboration meeting agenda - Elliott
• RootSpy update - Dave L
• Trigger test stand - Alex S
• EVIO and Jevio improvements - Elliott
• DANAEVIO and EVIO to DANA - Elliott, Dave L
• Coil test update - Elliott, Yi
• Other electronics and trigger status reports - Fernando, Chris, Ben, Ed, Alex, Dave, William, Bryan

Time/Location

1:30 PM Wed 28-Apr-2010 CC F326

Announcements

• Dave Heddle's CNU student will arrive in the next week or so to work on the Hall D event display. His office is on the 3rd floor, near our offices.
• A new engineer just got hired into the Electronics group. Another position is open.
• The CLAS12 software workshop will be held in U. of Richmond in late May. David L (JANA) and Elliott (code sharing and EVIO) will be speaking. The main focus of the workshop is offline software.

Next Meeting

Note: the next meeting is four weeks from today due to JLab RunAround and collaboration meeting

1:30 PM Wed 26-May-2010 CC F326

Minutes

Attendees: Elliott W, Beni Z, Simon T, Mark I, Chris C, Dave A, David L, Vardan G, Carl T, Alex S, Yi Q.

Collaboration meeting online agenda

See link above. Everyone was happy with the agenda, although details still need to be worked out (time allottments, who actually will make the presentations, etc).

RootSpy

Dave L presented recent work done by him and a high school student (James Codega). See his talk for many details.

• RootSpy lib is independent of JANA/DANA framework, and can be used with any Root-based program.
• SSH tunneling worked fine with latest cMsg version.
• Tested with multiple nodes (14), multiple operating systems, different architectures, different subnets, through firewalls, etc.
• Current system is completely asynchronous in that hist servers send hists to display server when they feel like it.
• Display updates automatically when new hists arrive.
• Need to add facility whereby users can specify cuts that are delivered to hist servers, who then apply cuts to in-memory tree and return resulting hist.
• Immediate uses might be for FDC test setup (Beni) and tracking code development (Simon).

Trigger Test Stand

Chris reported on steady progress in hardware and software development in preparation for commissioning of the full complement of trigger hardware. Alex will talk about this at the collaboration meeting.