Struct DataLoaderBuilder

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pub struct DataLoaderBuilder<I, O> { /* private fields */ }

Available on crate features dataset and std only.

Expand description

A builder for data loaders.

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impl<I, O> DataLoaderBuilder<I, O>
where I: Send + Sync + Clone + Debug + 'static, O: Send + Clone + Debug + 'static,

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pub fn new<Bt>(batcher: Bt) -> Self
where Bt: Batcher<I, O> + 'static,

Creates a new data loader builder.

§Arguments

batcher - The batcher.

§Returns

The data loader builder.

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pub fn batch_size(self, batch_size: usize) -> Self

Sets the batch size to a fix number.

The fix batch strategy will be used.

§Arguments

batch_size - The batch size.

§Returns

The data loader builder.

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pub fn shuffle(self, seed: u64) -> Self

Sets the seed for shuffling.

Each time the dataloader starts a new iteration, the dataset will be shuffled.

§Arguments

seed - The seed.

§Returns

The data loader builder.

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pub fn num_workers(self, num_workers: usize) -> Self

Sets the number of workers.

Some(0) or None: the dataloader will run without work threads.
Some(n); n > 0: the dataloader will run with n background threads.

A 1-worker threaded dataloader will run loads in a background thread, while a 0-worker threaded dataloader will run loads in the main thread.

§Arguments

num_workers - The number of workers.

§Returns

The data loader builder.

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pub fn set_device(self, device: Device) -> Self

Sets the data loader device.

§Arguments

device - The device to use when loading a batch.

§Returns

The data loader builder.

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pub fn build<D>(self, dataset: D) -> Arc<dyn DataLoader<O>> ⓘ
where D: Dataset + 'static,

Builds the data loader.

§Arguments

dataset - The dataset.

§Returns

The data loader.

Auto Trait Implementations§

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impl<I, O> !RefUnwindSafe for DataLoaderBuilder<I, O>

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impl<I, O> !UnwindSafe for DataLoaderBuilder<I, O>

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impl<I, O> Freeze for DataLoaderBuilder<I, O>
where Option<Box<dyn BatchStrategy>>: Freeze, Arc<dyn Batcher<I, O>>: Freeze,

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impl<I, O> Send for DataLoaderBuilder<I, O>
where Option<Box<dyn BatchStrategy>>: Send, Arc<dyn Batcher<I, O>>: Send,

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impl<I, O> Sync for DataLoaderBuilder<I, O>
where Option<Box<dyn BatchStrategy>>: Sync, Arc<dyn Batcher<I, O>>: Sync,

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impl<I, O> Unpin for DataLoaderBuilder<I, O>
where Option<Box<dyn BatchStrategy>>: Unpin, Arc<dyn Batcher<I, O>>: Unpin,

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impl<I, O> UnsafeUnpin for DataLoaderBuilder<I, O>
where Option<Box<dyn BatchStrategy>>: UnsafeUnpin, Arc<dyn Batcher<I, O>>: UnsafeUnpin,

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<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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Converts Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>, which can then be downcast into Box<dyn ConcreteType> where ConcreteType implements Trait.

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Converts Rc<Trait> (where Trait: Downcast) to Rc<Any>, which can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Converts &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

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fn into_any_send(self: Box<T>) -> Box<dyn Any + Send>

Converts Box<Trait> (where Trait: DowncastSend) to Box<dyn Any + Send>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.

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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_sync(self: Box<T>) -> Box<dyn Any + Send + Sync>

Converts Box<Trait> (where Trait: DowncastSync) to Box<dyn Any + Send + Sync>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync> ⓘ

Converts Arc<Trait> (where Trait: DowncastSync) to Arc<Any>, which can then be downcast into Arc<ConcreteType> where ConcreteType implements Trait.

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where T: 'static,

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

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Calls U::from(self).

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

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fn comptime(self) -> Self

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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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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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