Aitken Supercomputer

As part of HECC's continuing efforts to expand NASA's critical high-end computing capabilities, Aitken is a petascale supercomputer housed in the Modular Supercomputing Facility (MSF) at NASA's Ames Research Center. Aitken's initial module and racks containing Intel Xeon Gold "Cascade Lake" nodes were installed in summer 2019, and the system has since been expanded twice with new racks containing AMD EPYC "Rome" nodes. The MSF is situated on a one-acre site that has the potential to hold 16 modules for computing and data storage.

Photo of modular supercomputing facility that houses Aitken supercomputer

System Architecture

Node Detail
Intel Cascade Lake Nodes AMD Rome Nodes
Number of Nodes 1,152 1,536
Processor/Node 2 20-core Intel Xeon Gold 6248 processors per node 2 64-core AMD 7742 processors per node
Processor Speed 2.5 GHz 2.25 GHz
Cache 27.5 MB shared non-inclusive by the 20 cores 256 MB per socket, each socket containing 16 core complexes (CCX)
Memory Type 16 GB 2Rx4 DDR4-2933V-R 32 GB 2Rx4 PC4-3200AA-R Smart Kit
Memory Size 4.8 GB per core, 192 GB per node 4 GB per core, 512 GB per node
Host Channel Adapter InfiniBand EDR host channel adapter and HDR switches InfiniBand HDR Mezzanine cards

Interconnects

Operating Environment

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