Update moe branch for torchrun and fix error while loading trainer.ds_module #7
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Fix the issue "[rank0]: RuntimeError: Expected all tensors to be on the same device, but found at least two devices, cuda:0 and cpu!" On DeepSpeed library 0.15.0, the commit 7260890452eb89185f9ab1e09550938f78ea91db changed the return output tensor exp_counts from 'cpu' to device when calling deepspeed.moe.layer.MoE() This change reduces cpu host overhead when using moe. The device type of self.expert_counts tensor in Fairseq transformer_moe_layer module needs to be changed from cuda from cpu, for ds library >= 0.15.0 Signed-off-by: Jagadish Krishnamoorthy <[email protected]>
transformer_moe_layer: Fix Runtime error
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