Struct QLora

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pub struct QLora { /* private fields */ }

Expand description

A Reparameterizer implementing QLoRA: it quantizes the (frozen) base weights and attaches full-precision trainable LoRA adapters to 2-D weights.

It is applied via Module::apply_qlora.

The quantized base is kept at rest in its low-bit representation; the adapter contribution is added on top during the forward pass (the base is dequantized on the fly when composed).

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impl QLora

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pub fn new(lora: Lora, quantizer: Quantizer) -> Self

Create a new QLoRA reparameterizer from LoRA settings and a quantizer.

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impl Reparameterizer for QLora

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type Reparam = LoraAdapter

Reparameterization produced for a parameter.

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fn reparameterize<const D: usize>( &mut self, path: &str, param: Param<Tensor<D>>, ) -> (Param<Tensor<D>>, Option<Self::Reparam>)

Prepare a parameter and optionally create a reparameterization for it. Read more

Auto Trait Implementations§

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impl UnwindSafe for QLora

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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