Trait IndexedParallelIteratorExt 

pub trait IndexedParallelIteratorExt: IndexedParallelIterator {
    // Provided methods
    fn with_min_task_bytes<T>(
        self,
    ) -> impl IndexedParallelIterator<Item = Self::Item>
       where Self: Sized { ... }
    fn with_min_task(
        self,
        work: WorkPerItem,
    ) -> impl IndexedParallelIterator<Item = Self::Item>
       where Self: Sized { ... }
}

Task-size adapters for parallel iterators.

Each adapter sets the minimum items per task from a cost model. A call site states what one item costs instead of hardcoding a count.

Provided Methods

fn with_min_task_bytes<T>( self, ) -> impl IndexedParallelIterator<Item = Self::Item>

where Self: Sized,

Floors the split so one task moves at least the byte budget.

The type parameter counts the bytes one item moves. Use this for loops bound by memory traffic: copies, transposes, permutations.

fn with_min_task( self, work: WorkPerItem, ) -> impl IndexedParallelIterator<Item = Self::Item>

where Self: Sized,

Floors the split so one task runs for at least the time budget.

Use this for loops bound by arithmetic, classified by the cost of one item.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<I: IndexedParallelIterator> IndexedParallelIteratorExt for I