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LBFGSState

Struct LBFGSState

pub struct LBFGSState<B>where
    B: Backend,{
    pub history_s: Vec<Tensor<B, 1>>,
    pub history_y: Vec<Tensor<B, 1>>,
    pub d: Option<Tensor<B, 1>>,
    pub t: Option<f64>,
    pub prev_flat_grad: Option<Tensor<B, 1>>,
    pub prev_loss: Option<f64>,
    pub g_iter: usize,
}

Expand description

L-BFGS optimizer state

Fields§

§history_s: Vec<Tensor<B, 1>>

Historical displacement vectors

§history_y: Vec<Tensor<B, 1>>

Historical gradient difference vectors

§d: Option<Tensor<B, 1>>

Search direction

§t: Option<f64>

Step size from the previous iteration

§prev_flat_grad: Option<Tensor<B, 1>>

Flattened gradient from the previous iteration

§prev_loss: Option<f64>

Loss value from the previous iteration

§g_iter: usize

Global iteration count

Implementations§

impl<B> LBFGSState<B>
where B: Backend,

pub fn to_device(self, device: &<B as BackendTypes>::Device) -> LBFGSState<B>

Moves all historical tensors to the target device.

Trait Implementations§

impl<B> Clone for LBFGSState<B>
where B: Clone + Backend,

fn clone(&self) -> LBFGSState<B>

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl<B> Default for LBFGSState<B>
where B: Backend,

fn default() -> LBFGSState<B>

Returns the “default value” for a type. Read more

impl<B> Record<B> for LBFGSState<B>
where B: Backend,

type Item<S: PrecisionSettings> = LBFGSStateItem<B, S>

Type of the item that can be serialized and deserialized.

fn into_item<S>(self) -> <LBFGSState<B> as Record<B>>::Item<S>
where S: PrecisionSettings,

Convert the current record into the corresponding item that follows the given settings.

fn from_item<S>( item: <LBFGSState<B> as Record<B>>::Item<S>, device: &<B as BackendTypes>::Device, ) -> LBFGSState<B>
where S: PrecisionSettings,

Convert the given item into a record.

Auto Trait Implementations§

impl<B> Freeze for LBFGSState<B>
where <B as BackendTypes>::FloatTensorPrimitive: Freeze, <B as BackendTypes>::QuantizedTensorPrimitive: Freeze,

impl<B> RefUnwindSafe for LBFGSState<B>
where <B as BackendTypes>::FloatTensorPrimitive: RefUnwindSafe, <B as BackendTypes>::QuantizedTensorPrimitive: RefUnwindSafe,

impl<B> Send for LBFGSState<B>

impl<B> Sync for LBFGSState<B>

impl<B> Unpin for LBFGSState<B>
where <B as BackendTypes>::FloatTensorPrimitive: Unpin, <B as BackendTypes>::QuantizedTensorPrimitive: Unpin,

impl<B> UnsafeUnpin for LBFGSState<B>
where <B as BackendTypes>::FloatTensorPrimitive: UnsafeUnpin, <B as BackendTypes>::QuantizedTensorPrimitive: UnsafeUnpin,

impl<B> UnwindSafe for LBFGSState<B>
where <B as BackendTypes>::FloatTensorPrimitive: UnwindSafe, <B as BackendTypes>::QuantizedTensorPrimitive: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.