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[perf] Fun-ASR-Nano fine-tuning on B200: 0.244 s to 0.068 s per step at 1 GPU, mostly from cuDNN SDPA plan builds on every new batch shape - #3705

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LauraGPT merged 3 commits into
modelscope:mainfrom
TarzanZhao:perf/fun-asr-nano-training-speed
Sep 21, 2026
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[perf] Fun-ASR-Nano fine-tuning on B200: 0.244 s to 0.068 s per step at 1 GPU, mostly from cuDNN SDPA plan builds on every new batch shape#3705
LauraGPT merged 3 commits into
modelscope:mainfrom
TarzanZhao:perf/fun-asr-nano-training-speed

fun_asr_nano: declare the torch 2.3 floor the fine-tuning recipe needs

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