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[BE]: Update cudnn to 9.10.2.21 #155576
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[BE]: Update cudnn to 9.10.2.21 #155576
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I wouldn't bump the cudnn version for cu126, as we don't have enough test combination done with cu126 and this 9.10.2.21.
Recommend keeping cuDNN version unchanged for cuda 12.6.
But open to what others prefer.
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The other aspect to this (cuda 12.6 + 9.10.2.21) is that as time goes by, the cuda 12.6 is getting tested less in CI due to ongoing efforts to move CI from cuda 12.6 to 12.8.
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Important performance updates for SDPA on A100s/H100s here though, and better to support fewer CUDNN versions.