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System A3 (Skylake) Model: Lenovo Stark Racks: 45 Nodes: 3188 Processors: 2 x 24-cores Intel Xeon 8160 CPU (Skylake) at 2.10 GHz Cores: 48 cores/node RAM: 192 GB/node of  DDR4 Peak Performance: xx 10 PFlop/s

Marconi Network

Network type: Intel Omnipath, 100 Gb/s. At the time of setup, MARCONI was the largest Omnipath cluster in the world.
Network topology: Fat-tree 2:1 oversubscription tapering at the level of the core switches only.
Core Switches: 5 x OPA Core Switch "Sawtooth Forest", 768 ports each.
Edge Switch: 216 OPA Edge Switch "Eldorado Forest", 48 ports each.
Maximum system configuration: 5(opa) x 768 (ports) x 2 (tapering) → 7680 servers.

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