LHC Computing
Grid Project
Project Execution Board
Notes
of the meeting of Tuesday January 27, 2004
DRAFT 2 8/FEB/2004
Present:
Dario Barberis, Federico
Carminati, Philippe Charpentier,
Phone: Nick Brook (from 17:10)
Actions: Actions are identified by bold blue italics.
The minutes of the meeting of the 12th January were accepted.
Matters arising:
Gag mandate: Federico has made slides available (transparencies).
The membership is being completed in a mail exchange between Federico and the
experiments. The proposal was approved.
Licenses of
commercial software will expire soon (HEP-wide NAG-C in June; Iris Explorer/
Open Inventor CERN site license in December 2004). Andreas Pfeiffer is
preparing a proposal on what to do.
A
discussion took place on the ATLAS and LHCb positions concerning a POOL
relational back end in view of conditions database implementations. Dirk
Duellmann continues to talk to the experiments in preparation of an updated
POOL workplan.
LHCb has
almost achieved the POOL persistency milestone (waiting for Windows binaries).
Philippe confirmed that this is also OK now - since January 26.
A draft SEAL
workplan was presented at the Architects Forum by Pere. Vincenzo wanted to see
agreement by the experiments item by item. An important item was the question
of a common dictionary between ROOT and LCG. Vincenzo did not want to see one
and only one dictionary implementation (based on CINT).
Waiting for
the POOL draft plan for 2004 – feedback from the experiments is required.
Mirco summarized the items that will require some follow-up:
Dave Kelsey has presented the status of user registration/authorization
in the context of virtual organizations (VOs).
Les announced that for CERN
John Gordon has presented the status and plans for the Grid Operations
Centre (GOC). An action item is: [text to be
provided by Mirco]
The question of interfacing the grid user support with experiments
support will be discussed in a meeting between
Another action item is to set up a group working on the interoperability
between LCG and Grid-3.
The proposed schedule for data challenges in 2004 was endorsed.
Bernd should now request the information on computing resources at
centres in order to complete the centrally maintained tables.
A number of people from the experiments announced possible contributors to the project. To clarify the meaning of the term ARDA, Les proposed to call the middleware ARDA.
Les will write a revised version of his note taking this
discussion into account.
Dario has updated the proposed mandate (transparencies) of
the RTAG and called for comments. As there were no further comments and the PEB
agreed the proposal was adopted. Also the proposal to nominate Steve Goldfarb
from
Interested parties such as CERN/IT, EGEE, and VRVS will nominate members. The experiments are already advanced in nominating their representatives:
ATLAS: Roger Jones and Steven Goldfarb
CMS:
LHCb: Ian McArthur (
It is expected that a report will be delivered within two months.
David Stickland reported a technical problem that POOL and the replica manager use file catalogue differently.
In addition, the replica manager can currently only handle lower casing while CMS have mixed cases. These problems represent show-stoppers for CMS to use LCG-2. Dirk and Ian are investigating the problem and will come back with solutions to CMS.
It is proposed to handle problems like these in a regular
(weekly) “Deployment Meeting”.
Actions |
||||
# |
Date opened |
Description |
Responsible |
Date closed |
1 |
16dec03 |
ALICE, CMS and LHCb to name someone responsible for coordinating
deployment on LCG-2 |
Federico, David S., Philippe |
|
2 |
16dec03 |
Understand why the substantial resources in 6jan04- visit to RAL organised for 24jan04 |
Les |
|
3 |
16dec03 |
Confirm that the absence of BNL in the LCG-2 deployment list is due to
manpower shortage |
Les |
|
4 |
16dec03 |
Experiments to request through their national contacts that their resources
in the core LCG-2 centres are integrated in LCG-2 |
Federico, Dario, David S., Philippe |
|
5 |
16dec03 |
Regional centres to be asked to clarify their mass storage plans. Presented by RCs in GDB of 13jan04 |
Les |
13jan04 |
6 |
12jan04 |
Revised proposed GAG mandate |
Federico |
|