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{
  "saved_at_utc": "2026-08-16T18:19:21.381727+00:00",
  "reason": "GPU driver crash after routing surgery prep; resume without losing progress",
  "step_tokens": 256,
  "surgery": {
    "gate_temp": 2.5,
    "omega_scale": 4.0,
    "lb_coef": 0.02,
    "kuramoto_learned": true,
    "lb_in_loss": true
  },
  "gpus": {
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      "shard": "data/shard_gpu0.pt"
    },
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    },
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      "shard": "data/shard_gpu3.pt"
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  }
}