#parallel #array #initialization

par-array-init

Convenience functions for initializing arrays in parallel

2 releases

✓ Uses Rust 2018 edition

0.0.5 Jun 7, 2019
0.0.4 Jun 7, 2019

#7 in #initialization

MIT license

10KB
146 lines

par-array-init

The par-array-init crate allows you to initialize arrays with an initializer closure that will be called in parallel to fill the array.

This crate mirrors the api of crate array-init with the caveat that initialization is performed in parallel. An important departure from array-init, initialization order is not deterministic and should not be relied on.

Parallelization is achieved using rayon and it's ParallelIterator api.

Examples:

extern crate par_array_init;
extern crate rayon;

use par_array_init::{par_array_init, from_par_iter};

// Initialize an array of length 10 containing successive squares
let arr: [usize; 50] = par_array_init(|i| i * i);

// Initialize an array from an iterator producing an array of 34 repeated

let mut iter = rayon::iter::repeat(34u32).take(50);
let arr: Option<[u32; 50]> = from_par_iter(iter);

lib.rs:

The par_array_init crate allows you to initialize arrays with an initializer closure that will be called in parallel to fill the array.

This crate mirrors the api of crate (array-init)[https://crates.io/crates/array-init] with the caveat that initialization is performed in parallel. An important departure from array-init, initialization order is not deterministic and should not be relied on.

Parallelization is achieved using (rayon)[https://https://crates.io/crates/rayon] and it's ParallelIterator api.

Examples:

# extern crate par_array_init;
# extern crate rayon;
// Initialize an array of length 10 containing successive squares
let arr: [usize; 50] = par_array_init::par_array_init(|i| i * i);

// Initialize an array from an iterator producing an array filled with 34's
let mut iter = rayon::iter::repeat(34u32).take(50);
let arr: Option<[u32; 50]> = par_array_init::from_par_iter(iter);

Dependencies

~1MB
~23K SLoC