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Argonne Leadership Computing Facility

Sophia Machine Overview

Sophia is comprised of 24 NVIDIA DGX A100 nodes. Each DGX A100 node comprises eight NVIDIA A100 Tensor Core GPUs and two AMD Rome CPUs that provide 22 with 320 GB of GPU memory and two nodes with 640 GB of GPU memory (8320 GB aggregately) of GPU memory for training artificial intelligence (AI) datasets, while also enabling GPU-specific and -enhanced high-performance computing (HPC) applications for modeling and simulation

A 15-terabyte solid-state drive offers up to 25 gigabits per second in bandwidth. The dedicated compute fabric comprises 20 Mellanox QM9700 HDR200 40-port switches wired in a fat-tree topology.

Table 1 summarizes the capabilities of a Sophia compute node:

AMD Rome 64-core CPU 2 48
DDR4 Memory 1 TB on 320 GB & 2 TB on 640 GB 26 TB
NVIDIA A100 GPU 8 192
GPU Memory 22 nodes w/ 320 GB & 2 nodes w/ 640 GB 8,320 GB
HDR200 Compute Ports 8 192
HDR200 Storage Ports 2 48
100GbE Ports 2 48
3.84 TB Gen4 NVME drives 4 96