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That doesn't answer the question, which was how to get a high-speed interconnect between a Mac and a DGX Spark. The most likely solution would be a Thunderbolt PCIe enclosure and a 100Gb+ NIC, and passive DAC cables. The tricky part would be macOS drivers for said NIC.

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You’re right I misunderstood.

I’m not sure if it would be of much utility because this would presumably be for tensor parallel workloads. In that case you want the ranks in your cluster to be uniform or else everything will be forced to run at the speed of the slowest rank.

You could run pipeline parallel but not sure it’d be that much better than what we already have.

It was about this use case:

https://blog.exolabs.net/nvidia-dgx-spark/

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