LHC Computing Grid Project

Project Execution Board

Notes of the meeting of Monday 10 December

CERN, 14-4-030

Present: Philippe Charpentier, Chris Eck, Fabrizio Gagliardi, Matthias Kasemann, Miguel Marquina, Alberto Masoni, Gilbert Poulard, Les Robertson, Lucas Taylor, Wolfgang von Rueden, Torre Wenaus

Discussion with Matthias Kasemann to discuss the inter-relationship of the PEB and the SC2

Status reports to be made at the SC2 by the PEB –

Monthly –

Each month one of the area managers will give a short (30 minute) presentation with an overview of the status, plans and issues of their area. This means that each area will be covered three times per year.

Status report by the project leader covering the status of the high-level milestones, resources, problem areas, successes, etc. A written report will be provided each month, complemented by a short presentation/question session.

Half-yearly –

Detailed status report, with resource loaded planning information.

Once per year –

External review of the project – not clear of the scope, but it will be discussed with the LHCC chairman.

Kick-off Workshop – 4-8 February 2002 {since the meeting a new date of 11-15 March is being proposed}

Goal – arrive at high-level work plan
Monday lunchtime to Friday lunchtime.
Plenaries – status of experiments; summary of grid projects; summary of LCG Project
Specialist sessions – probably NOT parallel sessions

By area
Initial session of one half day per area
Area coordinators to make an opening presentation with an initial view of the main goals, priorities and difficulties
The session will aim to generate an agreed set of
- High level requirements
- Priorities
- Draft high-level work plan
Work will continue after the session
Thursday – morning – plenary conflict resolution and resource guidelines
Thursday – afternoon – parallel sessions preparing conclusions for the Friday plenary.

Final plenary – The conclusions of each specialist session, as developed by further discussion, will be presented to the plenary.
The workshop will be open.
Presentations in working sessions to be pre-announced.
Area chairpersons –
Plenary sessions to be organised by Matthias Kasemann.

Moving forward in the PEB

While waiting for the Workshop and the SC2 to define the high level requirements it was agreed that the PEB can begin to progress with planning in some areas, preparing proposals for the SC2.

Grid Deployment & Computer Systems – In these areas, where there is general agreement on how to proceed, the PEB can go ahead and prepare planning proposals for discussion and agreement in the SC2.
Applications – It will take some time to agree on the granularity and the definition of the deliverables.
It is important that the broad lines are agreed rather rapidly to ensure that resources are moved into the
appropriate areas. We would hope to get initial guidelines by the end of the Workshop.
Grid technology – The experiments all provided initial requirements (collected together in the Datagrid HEP
applications requirements deliverable). In the short term the applications work package of Datagrid (led by Federico Carminati) will generate a "merged" set of requirements, taking account of the limited resources of the Datagrid project. Can we assume that the other (US) grid projects will do something similar – and that the functionality developed by all these projects will be complementary?

Other items from the SC2

Document series – organised by area – CERN-LCG-area-*
Web area
- lcg/sc2 - public, all SC2 members can write
- lcg/sc2/private, only SC2 members can read and write
- it was agreed that a similar convention will be used by the PEB (lcg/peb, lcg/peb/private)

AOB

The Project will use the acronym LCG

There was a discussion on the resources available to the project. At the time of the Council session in September substantially more human resources appeared to have been pledged than were requested in the project definition paper (CERN/2394/rev). However, as formal contacts are made with the representatives of the countries concerned, it appears that in some cases the resources have been over-stated. By the end of January we should be able to make a good estimate of the real human resources that will be available. The pledges for materials resources made so far cover only about 40% of the amount required over the three years of the project.

Next meeting

Next meeting is scheduled for 12 December at 15:00 in 31-S-012.

The main agenda item is to have the four experiments stating their view of the high-level goals/milestones and their corresponding priorities. Wolfgang von Rüden will also present the IT groups working in the area of physics support.

Miguel Marquina 18 December 2001