Add TNT blocks to kfac_jax. #258
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This CL adds TNT blocks to kfac_jax. TNT blocks are a type of curvature approximation that is generally imposes less structure knowledge of the computation, and mainly relies on the array shape of the parameters. It also adds a RepatedDenseKroneckerFactored which extends the usual DenseTwoKroneckerFacored to the case where a dense layer is applied in parallel over an axis of inputs (like a time axis in sequence models). PiperOrigin-RevId: 665965233
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Add TNT blocks to kfac_jax.
This CL adds TNT blocks to kfac_jax. TNT blocks are a type of curvature approximation that is generally imposes less structure knowledge of the computation, and mainly relies on the array shape of the parameters.
It also adds a RepatedDenseKroneckerFactored which extends the usual DenseTwoKroneckerFacored to the case where a dense layer is applied in parallel over an axis of inputs (like a time axis in sequence models).