1. Organization of ATLAS computing in France
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

2. French Labs in ATLAS IN2P3 : CEA : Total of 103 PhD holders (M&O)
Annecy
Clermont-Ferrand
Grenoble
Marseille
Orsay
LPNHE-Paris
CEA :
Saclay
Total of 103 PhD holders (M&O)
~220 ATLAS accounts at Computer Center
Members of /atlas/fr VO group : ~70
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

3. Calcul ATLAS France (CAF) - I
1-2 members / lab
Computer Center (CC) ATLAS contact (Ghita Rahal)
Regular meetings
At CC
With CC staffs
And recently with Japanese colleagues
~15 people
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

4. Calcul ATLAS France (CAF) - II
User support :
Twiki on ATLAS environment at CC to help physicists
ATLAS-operation meetings :
Constant presence
To insure feedback
And communication
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

5. ATLAS FR Sites Tier-2 Tier-1 GRIF CC-Lyon AF CC-Lyon Tier-3 LAPP
CEA/DAPNIA
LAL
LLR
LPNHE
IPNO
Tier-1
CC-Lyon
Strasbourg AF
CC-Lyon
Ile de France
Nantes
Clermont-Ferrand
Tier-3 LAPP
Tier-2 LPC
Annecy
Lyon
Marseille
Tier-3 CPPM
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

6. 2006 MC production on FR-sites
jobs
15% of LCG wall-time
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

7. MC production on the FR Cloud
Executor (CondorG) at CC
Operated by team of ~5 people
One shifter (2-3 weeks rotation)
One expert in backup (Jerome Schwindling)
80% of CC resources for production (batch priority)
Dedicated monitoring tools developed on top of standard ones
2007 stat.
14% outside .fr
Efficiency vs time
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

8. List of tasks assigned to FR-cloud
Select task details
Task status
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

9. DDM Organization : We want to have all AODs at the Tier-1
Experts : Stephane + Ghita
Plus 2-3 rotating people, mainly for cleaning DDM leftovers
We want to have all AODs at the Tier-1
Where the Analysis Facility will be
Precise AOD placement policy within cloud under discussion
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

10. Ongoing activities Joint meeting with BNL and FZK, May 22-23
Test of PANDA at Lyon (Torre Wenaus)
Investigating :
Xrootd
Proof for interactive analysis
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon

11. Concerns ROOT/DPM problem for data analysis in T2s
dCache/srm instability
DDM :
Lack of monitoring tools (what is transferred by whom, why dataset is not complete?)
Time delay between file registering and physical presence on device
Disk cleanup (RDOs remain on DISK when task finished)
Increase of resources (Memory, Event size)
Roles in FTS (for writing in T2s)
Releases (number and cycles) /afs space to be watched
What about xrootd?
More information needed on what is going on and when
ATLAS visit to CC-Lyon, Apr. 2007
Eric Lançon