1. Networking and ITS Issues for PHENIX*
Charles F. Maguire
Department of Physics and Astronomy *Major thanks to ACCRE staff: Mat Binkley, Bobby Brown, Kevin Buterbaugh, Mary Dietrich, Carie Kennedy, Santiago de Ledesma, Kelley McCauley, Kevin McCord, and Alan Tacket
July 15, 2005
Networking and ITS

2. 13 Countries; 62 Institutions; 550 Participants*
*as of March 2005

3. The PHENIX Detector EM Calorimeter Beam-Beam Counter Time Expansion
Chamber
Muon Tracking
Chambers
Central
Arms
Muon ID
Panels
Pad Chambers
Multiplicity/Vertex
Detector
North Muon
Arm
Drift Chambers
South Muon
Arm
Time of Flight
Panels
Ring Imaging
Cerenkov
July 15, 2005
Networking and ITS

4. Vanderbilt Role in PHENIX
Supervisor of 3 subsystems
Pad Chambers
New Time-of-Flight West
Simulation Software
Simulation Responsibility
Generate huge amounts of simulated data to check real analyses
Simulations done on ACCRE farm (5 TBytes in past 6 weeks)
Results are transported over the Internet to BNL at 10 Mbytes/second
ACCRE can generate simulations faster than we can ship them
Now exploring new faster modes of transport, up to 60 MBytes/second Collaboration will request us to use gridFTP for this work (security for them)
New Proposal to DOE Planned for the Fall
Will import hundreds of TBytes of real data from BNL to ACCRE via gridFTP 100 TBytes at 60 MBytes/second takes 20 days Proved to work this past Spring for a connection from BNL to Japan
Data will be reconstructed on ACCRE
Reconstruction results (tens of TBytes) will be immediately shipped back to BNL
The speed, reliability, and transparency of the network is the vital element
July 15, 2005
Networking and ITS