Blue Waters

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Blue Waters System Specs

Blue Waters is designed to meet the compute-intensive, memory-intensive, and data-intensive needs of a wide range of scientists and engineers. It will deliver sustained performance of one petaflop (one quadrillion calculations per second). The Blue Waters team will demonstrate sustained-petascale performance using eight scientific applications—codes used in everything from earthquake prediction to the study of how a virus enters a cell to modeling severe storms and climate change.

• Cray XE6 cabinets: >235

• Cray XK6 cabinets: >30

• Total cabinets, including storage

and server cabinets: >300

• Compute nodes: >25,000

• Usable storage bandwidth: >1 TB/s

• Aggregate system memory: >1.5 PB

• Memory per core: 4 GB

• Gemini network cables: Over 9,000 (~4,500km of single wires)

• Interconnect topology: 3D Torus

• Number of disks: >17,000

• Number of memory DIMMS: >190,000

• Usable storage: >25 PB

• Peak performance: >11.5 PF

• Number of AMD processors: >49,000

• Number of AMD x86 cores: >380,000

• Number of NVIDIA GPUs: >3,000

• External network bandwidth: 100 Gb/s scaling to 300 Gb/s

• Integrated Near Line Environment: Scaling to 500 petabytes

• Bandwidth to near-line storage: 100 GB/s

User Access

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