Enum CompressionMethod

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pub enum CompressionMethod {
Show 13 variants    TopK {
        k: f32,
    },
    RandomK {
        k: f32,
    },
    Threshold {
        threshold: f32,
    },
    Quantization {
        bits: u8,
    },
    SignSGD,
    Sketching {
        sketch_size: usize,
    },
    PowerSGD {
        rank: usize,
    },
    TernaryQuant {
        threshold: f32,
    },
    BimodalQuant {
        num_bins: usize,
    },
    NaturalCompression {
        compression_factor: f32,
    },
    LayerwiseAdaptive {
        base_ratio: f32,
        sensitivity: f32,
    },
    EF21 {
        compression_ratio: f32,
        momentum: f32,
    },
    None,
}

Expand description

Supported compression methods

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TopK

Top-K sparsification (keep top k% of gradients)

Fields

§k: f32

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RandomK

Random sparsification

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§k: f32

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Threshold

Threshold-based sparsification

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§threshold: f32

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Quantization

Quantization to specific number of bits

Fields

§bits: u8

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SignSGD

Sign-based compression (SignSGD)

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Sketching

Gradient sketching using Count-Sketch

Fields

§sketch_size: usize

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PowerSGD

PowerSGD low-rank approximation

Fields

§rank: usize

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TernaryQuant

Ternary quantization (-1, 0, +1)

Fields

§threshold: f32

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BimodalQuant

Bimodal quantization (adaptive binning)

Fields

§num_bins: usize

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NaturalCompression

Natural compression (based on gradient distribution)

Fields

§compression_factor: f32

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LayerwiseAdaptive

Layerwise adaptive compression

Fields

§base_ratio: f32

§sensitivity: f32

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EF21

EF21 compression with momentum

Fields

§compression_ratio: f32

§momentum: f32

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None

No compression (baseline)

Trait Implementations§

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impl Clone for CompressionMethod

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fn clone(&self) -> CompressionMethod

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for CompressionMethod

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<'de> Deserialize<'de> for CompressionMethod

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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

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impl PartialEq for CompressionMethod

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fn eq(&self, other: &CompressionMethod) -> bool

Tests for self and other values to be equal, and is used by ==.

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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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impl Serialize for CompressionMethod

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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

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impl StructuralPartialEq for CompressionMethod

Auto Trait Implementations§

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impl UnwindSafe for CompressionMethod

Blanket Implementations§

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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<T> CloneToUninit for T
where T: Clone,

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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

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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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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