Individual skill
nemo-mbridge-perf-cpu-offloading
Validate and use CPU offloading in Megatron Bridge, including layer-level activation offloading and fractional optimizer state offloading with HybridDeviceOptimizer.
skills/nemo-mbridge-perf-cpu-offloading/SKILL.md
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# CPU Offloading
## References
- Stable docs: @docs/training/cpu-offloading.md
- Structured metadata: @skills/nemo-mbridge-perf-cpu-offloading/card.yaml
## What It Is
Two independent mechanisms to move data from GPU to CPU memory:
| Mechanism | Config namespace | What gets offloaded | PP restriction |
|---|---|---|---|
| Activation offloading | `model.cpu_offloading*` | Activations (and optionally weights) per transformer layer | PP must be 1 |