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log_softmax_backward

teeny_kernels::nn::activation::extra

Function log_softmax_backward 

Source 
pub fn log_softmax_backward<T: Triton, const BLOCK_SIZE: i32>(
    dy_ptr: T::Pointer<f32>,
    y_ptr: T::Pointer<f32>,
    dx_ptr: T::Pointer<f32>,
    _n_rows: i32,
    n_cols: i32,
)
where
    T::I32Tensor: Tensor<i32, 1> + Comparison<i32, BoolTensor = T::BoolTensor>,
    T::Pointer<f32>: AddOffsets<i32, 1, T::I32Tensor, Output = T::Tensor<T::Pointer<f32>>>,
Expand description

Backward: dx = dy - softmax(x) * sum(dy)