Skip to main content

AdamState

cjc_runtime::ml

Struct AdamState 

Source 
pub struct AdamState {
    pub lr: f64,
    pub beta1: f64,
    pub beta2: f64,
    pub eps: f64,
    pub t: u64,
    pub m: Vec<f64>,
    pub v: Vec<f64>,
}
Expand description

Adam optimizer state.

Phase 2b: m/v are first/second moment buffers. The fields stay pub for backward compatibility (cjc-eval / cjc-mir-exec read state.m.len()), but new code should prefer the typed accessors m_at / v_at / set_m_at / set_v_at / n_params.

See ADR-0022 (Phase 2 — typed-ID newtypes) for the policy.

Fields§

§lr: f64§beta1: f64§beta2: f64§eps: f64§t: u64§m: Vec<f64>§v: Vec<f64>

Implementations§

Source§

impl AdamState

Source

pub fn new(n_params: usize, lr: f64) -> Self

Source

pub fn n_params(&self) -> usize

Number of parameters tracked by this state.

Source

pub fn m_at(&self, p: ParamIdx) -> f64

Read the first-moment estimate at a typed parameter index.

Source

pub fn set_m_at(&mut self, p: ParamIdx, value: f64)

Write the first-moment estimate at a typed parameter index.

Source

pub fn v_at(&self, p: ParamIdx) -> f64

Read the second-moment estimate at a typed parameter index.

Source

pub fn set_v_at(&mut self, p: ParamIdx, value: f64)

Write the second-moment estimate at a typed parameter index.

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T> IntoEither for T

Source§

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
Source§

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
Source§

impl<T> Pointable for T

Source§

const ALIGN: usize

The alignment of pointer.
Source§

type Init = T

The type for initializers.
Source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
Source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
Source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
Source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.