Summer Student Programme

Karel Ha

CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

international particle physics laboratory established in 1954

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Inventions and discoveries

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Inventions and discoveries

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Inventions and discoveries

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Inventions and discoveries

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Summer Student Programme

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Large Hadron Collider (LHC)

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

ATLAS

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

CMS

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Data Centre

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Data Centre

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Data protection

CERN archives 10 TBof physics data per day!

Data stored on tapes mustendure for decades!!

How to protect data on tape backend? - Add CRC checksums.

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Data protection

CERN archives 10 TBof physics data per day!

Data stored on tapes mustendure for decades!!

How to protect data on tape backend? - Add CRC checksums.

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Data protection

CERN archives 10 TBof physics data per day!

Data stored on tapes mustendure for decades!!

How to protect data on tape backend?

- Add CRC checksums.

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Data protection

CERN archives 10 TBof physics data per day!

Data stored on tapes mustendure for decades!!

How to protect data on tape backend? - Add CRC checksums.

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

My internship project

writing on tape (no CRC): 250 MB/swriting on tape (Reed-Solomon CRC algorithm): 130 MB/s

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

My internship project

writing on tape (no CRC): 250 MB/swriting on tape (Reed-Solomon CRC algorithm): 130 MB/s 10 / 41

CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

My internship project

writing on tape (no CRC): 250 MB/swriting on tape (Reed-Solomon CRC algorithm): 130 MB/s 10 / 41

CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Tape-write on 4 cores with HyperThreading

0

50

100

150

200

250

300

0 2 4 6 8 10 12 14 16

MB

/s

n threads

Reed-Solomon on tpsrv212, output to tape

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Technology

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Main campus

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Hostel room

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Hostel room

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Hostel room

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

IT Department (our building)

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Our office

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Our office

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Our office

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Data Storage and Services group photo

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Data Storage and Services group photo

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Geneva

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Geneva

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Lausanne

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Paris

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Milan

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Bern

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Basel

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Lucerne

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Aarau

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Zurich

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Zurich

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

ETH Zurich

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

ETH Zurich

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Somewhere in the mountains...

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Somewhere in the mountains...

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Somewhere in the mountains...

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

...and below the waterfalls

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

...and below the waterfalls

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Concerts, Barbeques

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Concerts, Barbeques

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

Flashmobs

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

(Surprise) birthday parties

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

(Surprise) birthday parties

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

...and tons of chocolate!

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CERN = ? Experiments Data Work Environment Geneva Trips Social life Conclusion

. . . for your attention!

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