Bringing Up Cielo: Experiences with a Cray XE6 System Or, Getting - - PowerPoint PPT Presentation

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Bringing Up Cielo: Experiences with a Cray XE6 System Or, Getting - - PowerPoint PPT Presentation

Jan 14, 2024 198 likes •302 views

Bringing Up Cielo: Experiences with a Cray XE6 System Or, Getting Started with Your New 140k Processor System Cory Lueninghoener Daryl Grunau Quellyn Snead Tim Harrington Los Alamos National Laboratory U N C L A S S I F I E D Slide 1

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SLIDE 1

Operated by Los Alamos National Security, LLC for the U.S. Department of Energy’s NNSA

U N C L A S S I F I E D

Slide 1

Bringing Up Cielo: Experiences with a Cray XE6 System

Cory Lueninghoener Daryl Grunau Quellyn Snead Tim Harrington Los Alamos National Laboratory

Or, Getting Started with Your New 140k Processor System

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SLIDE 2

Operated by Los Alamos National Security, LLC for the U.S. Department of Energy’s NNSA

U N C L A S S I F I E D

Cielo at a Glance

96 Racks

96 Nodes per Rack

Two 8-core 2.4GHz Processors per Node

32GB Memory per Node

Torus network: 4.68GB/s links

142,304 Total Compute Cores

284,608 GB Total Compute Memory

1.11 PF measured speed

(Blatantly ripped from top500.org)

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SLIDE 3

Operated by Los Alamos National Security, LLC for the U.S. Department of Energy’s NNSA

U N C L A S S I F I E D

Cielo’s Family

Cielo Cielito Smog Muzia

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SLIDE 4

Operated by Los Alamos National Security, LLC for the U.S. Department of Energy’s NNSA

U N C L A S S I F I E D

Slide 2

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SLIDE 5

Operated by Los Alamos National Security, LLC for the U.S. Department of Energy’s NNSA

U N C L A S S I F I E D

Software Challenges

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SLIDE 6

Operated by Los Alamos National Security, LLC for the U.S. Department of Energy’s NNSA

U N C L A S S I F I E D

Software Challenges

 RPM Challenges  Configuration Management Challenges  Environment Management Challenges

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SLIDE 7

Operated by Los Alamos National Security, LLC for the U.S. Department of Energy’s NNSA

U N C L A S S I F I E D

Vendor Relations

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Operated by Los Alamos National Security, LLC for the U.S. Department of Energy’s NNSA

U N C L A S S I F I E D

Conclusions

 Keeping good vendor relations helped us a lot  Getting test systems early showed us problems early

  • Also helped us solve those problems early

 As always, configuration management is worthwhile  Working as a team is important

  • Many people and groups came together to get Cielo up

quickly

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SLIDE 9

Operated by Los Alamos National Security, LLC for the U.S. Department of Energy’s NNSA

U N C L A S S I F I E D

Questions?