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Train skip range
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This PR adds zero-offload support to Megatron-Deepspeed.
Below I compare the loss curves for ZeRO-stage 0 and ZeRO-stage2+cpu offload using DeepspeedCPUAdam optimizer.
Base Model - 1.3B
Number of Experts - 8
Batch Size - 256
Machine - Azure A100 40GB
Number of GPUs - 8
Dataset - BookCorpus