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day19: rayon - ez mode parallelization, speed * 6
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This commit is contained in:
Keenan Tims 2024-12-18 23:07:13 -08:00
parent 6b6dededc2
commit 2f5ed559df
Signed by: ktims
GPG Key ID: 11230674D69038D4
1 changed files with 6 additions and 4 deletions
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10
src/day19.rs
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@ -1,5 +1,6 @@
use aoc_runner_derive::aoc; use aoc_runner_derive::aoc;
use itertools::Itertools; use itertools::Itertools;
use rayon::iter::{IntoParallelIterator, ParallelIterator};
use rustc_hash::FxHashMap; use rustc_hash::FxHashMap;
use std::fmt::{Display, Write}; use std::fmt::{Display, Write};
@ -39,7 +40,7 @@ impl Display for Stripe {
} }
} }
#[derive(Debug)] #[derive(Debug, Clone)]
struct Design { struct Design {
stripes: Vec<Stripe>, stripes: Vec<Stripe>,
} }
@ -118,14 +119,15 @@ impl Onsen {
} }
fn count_possible(&self) -> i64 { fn count_possible(&self) -> i64 {
self.designs self.designs
.iter() .clone()
.into_par_iter()
.map(|d| self.possible(&d.stripes)) .map(|d| self.possible(&d.stripes))
.filter(|p| *p) .filter(|p| *p)
.count() as i64 .count() as i64
} }
fn count_ways(&self) -> i64 { fn count_ways(&self) -> i64 {
self.designs self.designs.clone()
.iter() .into_par_iter()
.map(|d| self.ways(&d.stripes, FxHashMap::default()).1) .map(|d| self.ways(&d.stripes, FxHashMap::default()).1)
.sum::<i64>() .sum::<i64>()
} }