hep software and training - indico

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HEP Software and TrainingPeter Elmer - Princeton University

And 10+ years later?High Energy Physics has a vast investment in software: tens of millions of lines

of C++ and Python for applications, distributed computing, data management, etc.

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Plus experiment software stacks with thousands of contributors, etc.

Example common (multi-experiment) software packages

The HEP Community

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Large, multinational collaborations working together over decades

At LHC: ATLAS & CMS each have 1000s of collaborators, ALICE & LHCb - 100s of collaborators. Other HEP experiments similar, e.g. XENON1T (135), DUNE (>1000), ...

Computing Challenges at the HL-LHC - Cost/Resources

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1 MHS06 ~ 100,000 average x86_64 cores

A naive extrapolation from today’s computing model and techniques, even after assuming Moore’s Law increases in capabilities, is insufficient to meet the expected resource needs for HL-LHC

Technology evolution for processors and storage is an additional challengeNew ideas and methods are needed, and software is the key ingredient

An Integrated Training Vision

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