This blog's goal is to introduce the problem around the new NVL72 system with GPU failures in production, which not all people outside of xAI are aware of. We have more blogs coming up for what we built to handle topology-aware scheduling, defragmentation and hot swapping during failures. The short version of the scheduling piece: jobs are decomposed into 16-node slices placed atomically on a single rack, with two spares per rack reserved for hot swaps.

Seems very relevant to what you are building. Quoting what Ali said: "Quick PoC?"