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rust-primes
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Add may lib for threading

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master
Trivernis 5 years ago
parent dd6ebe935f
commit ddb7897657
4 changed files with 323 additions and 20 deletions
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9
.idea/discord.xml
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@ -0,0 +1,9 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="DiscordProjectSettings">
<option name="show" value="true" />
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<component name="ProjectNotificationSettings">
<option name="askShowProject" value="false" />
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286
Cargo.lock generated
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@ -1,5 +1,99 @@
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@ -26,10 +196,126 @@ dependencies = [
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1
Cargo.toml
Unescape Escape View File

@ -8,3 +8,4 @@ edition = "2018"
[dependencies]
num_cpus = "1.0"
may = "0.3.14"

45
src/main.rs
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@ -1,61 +1,68 @@
extern crate num_cpus;
use std::thread;
use num_cpus;
use std::fs::{OpenOptions};
use std::io::prelude::*;
use std::sync::mpsc::{sync_channel, SyncSender};
use std::env;
use std::time::{Instant};
use std::io::BufWriter;
use may::sync::mpmc::{channel, Sender};
use may::go;
fn main() {
let (tx, rx) = sync_channel::<u128>(0);
may::config().set_workers(num_cpus::get());
let (tx, rx) = channel::<u64>();
let num_threads: u16 = num_cpus::get() as u16;
let mut start: u128 = 1;
let mut start: u64 = 1;
let args: Vec<String> = env::args().collect();
if args.len() > 1 {
start = *(&args[1].parse::<u128>().unwrap());
start = args[1].parse::<u64>().unwrap();
}
if &start % 2 == 0 {
start += 1;
}
let mut file = OpenOptions::new()
let file = OpenOptions::new()
.write(true)
.append(true)
.create(true)
.open("primes.txt")
.unwrap();
let mut buffer = BufWriter::new(file);
println!("Starting {} threads", num_threads);
for i in 0u16..num_threads {
let tx = tx.clone();
let _child = thread::spawn(move || {
get_primes(&start + (2*&i) as u128, (&num_threads * 2) as u16, &tx);
go!(move || {
get_primes(start + (2 * &i) as u64, (&num_threads * 2) as u64, &tx);
});
println!("Started thread {}", i);
}
let time_start = Instant::now();
let mut prime_count = 0;
loop {
let prime = rx.recv().unwrap();
println!("{}", prime);
if let Err(e) = writeln!(file, "{}", prime) {
prime_count += 1;
println!("\r{: <30}", prime);
print!("{} Primes/s", prime_count as f64/time_start.elapsed().as_secs_f64());
if let Err(e) = buffer.write(&format!("{}\n", prime).into_bytes()) {
panic!(e);
}
}
}
fn get_primes(start: u128, incr: u16, tx: &SyncSender<u128>) {
fn get_primes(start: u64, incr: u64, tx: &Sender<u64>) {
let mut num = start;
loop {
let mut is_prime = true;
if (num < 3) | (&num % 2 == 0) {
num += incr as u128;
num += incr;
continue;
}
for i in (3u128..&num/2).step_by(2) {
if &num % i == 0 {
for i in (3u64..&num/2).step_by(2) {
if num % i == 0 {
is_prime = false;
}
}
if is_prime {
if let Err(e) = (*tx).send(num) {
panic!(e);
}
tx.send(num).unwrap();
}
num += incr as u128;
num += incr;
}
}
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