when x_i is large, torch.exp(x_i) will overflow.
In your implementation, x_i = x_i - x_max. So the softmax one equation should be exp(x_i - x_max) / (1 + sum(exp(x_i - x_max)) ?
kyegomez / AttentionIsOFFByOne
Implementation of "Attention Is Off By One" by Evan Miller
184
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