Train Qwen3 on AWS Trainium with torchtitan
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What happened
Train Qwen3 on AWS Trainium with torchtitan three ways on a single trn2.48xlarge: the Hugging Face Transformers v5 modeling backend, torchtitan's native Qwen3, and NKI mixture-of-experts kernels. The same torchrun launcher and config structure work unchanged across all three paths, including loading and saving published Hugging Face safetensors.
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Sources
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- Train Qwen3 on AWS Trainium with torchtitanAWS Machine Learning