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CHEP2007 Highlights

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Computing in High-Energy Physics

2001 - Beijing

2003 – La Jolla

2005 - Interlaken

2006 - Mumbai

1997 - Berlin

1998 - Chicago

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“CHEP 2007 -- Before the LHC turnon”

• CHEP has traditionally been dominated by the core HEP facilities – CERN, SLAC, FNAL, etc, and the experiments

• RHIC and HI played a lesser role

• Very few HI folks in committees, I scored two plenaries in the past

• 2007 was LHC-centric like never before (ok, they thought they were turning on this year)

• More on this later...

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The Program

Plenary Sessions

2 Poster Sessions

Online Computing

Event Processing

Software components, tools and databases

Computer facilities, production grids and networking

Grid middleware and tools

Distributed data analysis and information management

Collaborative tools

On the side

WLCG Workshop (before the CHEP) [Worldwide LHC Computing Grid Project ] Summary at the conference

BOF Session about Globus

Integrated Site Security workshop

“Towards Petascale and Exascale Computing” - IBM

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Opening Day LHC: Machine and Experiments

Status and Prospects

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WLCGWorldwide LHC Computing Grid Project

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“The Rest” (that's us)Frank Wuerthwein (UCSD) supplied w/ info from Carla, me)

I think we should get on board with this, also for other, non-PHENIX things (RatCAP for example)

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This and ThatRene Brun --

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AOD or DOA?Federico Carmiati for ALICE

“Analysis Object Data” is what we traditionally call “DST”

Did you catch this?

The “AOD” (DST) size will go down to < 3% of the raw data size. We'll see.

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Back to the GRIDI think we should use the technologies more

for valid reasons, we have used what actually works (“Middleware”) only

(compare to STAR, a lot of effort if grid-ifying s/w, we use RCF much better)

in the eyes of many, this is not really “using the GRID”

get on board with local expertise --> Panda to use OSG

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Power Problems

From Richard Mount, SLAC

I think at the very least, future buildings should be integrated into the heat distribution of a facility

You generate heat that you blow off with A/C, while you run a furnace in winter to heat office space

illegal in many European countries

It drives me up the wall how the 1008 building , for example, is run

typical PC power supplies run at 30% efficiency at best

any improvements save x3 – the primary power, plus A/C which again runs at 2x load – 100 watts cost 200w to cool

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EVOWe (that is mostly the”Gabor crowd” around the current PPG080) tried to use EVO for the remote folks (Baldo, Christian, Tadaaki, me on occasion)

Not smooth sailing at all, initially, like the early radio days (important that you heard anything at all, not that it was good)

However, meetings are much easier to follow with even a thumbnail-sized video feed (we point a webcm at the screen to give a cue what slide we're looking at)

I met Phillipe Galvez at CHEP and we could sort ot some issues right on the spot. He identified some firewall/config issues, and took home some bug reports that I could demonstrate “live”

Also...

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Odds 'n Ends

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Noted

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LHC DAQ's

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Disappointments

“The one thing that was disappointing was, in my opinion, the too strong focus of the conference program on the LHC. ... One would think that the experiences of our experiments would be of interest to the physicists and engineers at the LHC, but virtually all RHIC-related presentations were downgraded to posters, and my own single PHENIX talk was allocated 12 minutes in a parallel session. “

From my trip report...

Does this looks like we are well represented?

With all due respect to Jim, his universe holds ATLAS and little else

He isn't even BNL

Michael sees things the same way, lots of grumbling

Good that things changed a bit @ RCF.

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Summary

On my rating scale, this conference gets a “C+”

As I said, a bit too much bias towards LHC

cozy environment; I like if there is one conference hotel that hosts all

relatively relaxed, it was

Poster Sessions too crowded, environmentally challenged (soggy posters)

wireless network was atrocious for a computing conference

From Niko's Online Track summary