Fix dk/dv autograd error on TPU flash attention #8685
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…ed on dv flash attention backward function on TPU will only return keys and values gradients if the key gradients is requested by torch.autograd
qihqi
approved these changes
Feb 6, 2025
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grads not extracting on flash attention if autograd activated on dv
flash attention backward function on TPU will only return keys and values gradients if the key gradients is requested by torch.autograd