Look mom, no InifiniBand: Nvidia’s DGX GH200 glues 256 superchips with NVLink
Nvidia unveiled its latest party trick at Computex in Taipei: stitching together 256 Grace-Hopper superchips into an"AI supercomputer" using nothing but NVLink.
At the heart of this super-system is Nvidia's Grace-Hopper chip. Unveiled at its March GTC event in 2022, the hardware blends a 72-core Arm-compatible Grace CPU cluster and 512GB of LPDDR5X memory with an 80GB GH100 Hopper GPU die using the company's 900GBps NVLink-C2C interface.
Speaking at the COMPUTEX 2023 conference in Taiwan today, Nvidia boss Jensen Huang compared Grace-Hopper to his company's
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