The Rust Rand Book - Parallel RNGs has a very good summary about parallel RNGs. It also gives code examples using the rayon library. However, a few things to notice.

1. rand::ThreadRng (obtained by calling rand::thread_rng) is often used in code examples of parallel RNGs as it uses thread-local storage …

Command-line Arguments Parsing

clap

clap is a simple to use, efficient, and full-featured Command Line Argument Parser.

structopt

Parse command line argument by defining a struct.

Terminal Interface

ratatui

RataTUI is a library to build rich terminal user interfaces or dashboards

tui

tui is a library to build rich terminal …

Xoshiro

Xoshiro is a family of fast, space-efficient and high quality PRNGs. It is considered the state-of-the-art (SOTA) family of non-cryptographic pseudo random number generators (PRNGs). The Rust crate rand_xoshiro (which is part of the popular Rust crate rand) has implementations of Xoshiro256Plus and Xoshiro256PlusPlus . Xoshiro256PlusPlus is a very good …

In pratice, the approach of separate RNGs with different seeds for threads/processes is widely used (even though theoretically those RNGs might have overlaping sequences, which is undesirable). For more discussions on this approach, please refer to The Rust Rand Book - Parallel RNGs and Seed Many RNGs in Rust . The …

General Tips and Traps

1. The permissions of the directory ~/.ssh and its subcontents on both the local machine and the remote server must be properly set in order for SSH login via public key to work. A good pratice is to set the permission of ~/.ssh to 700 (on both …

There are different ways to seed many RNGs (for parallel RNGs). Below summarizes 3 popular ways. Seeding RNGs using std::collections::hash_map::RandomState or rand::thread_rng is preferred.

Seed Using System Time

use std::time::{SystemTime, UNIX_EPOCH};
use rand::SmallRng;

fn main () {
    let seed = SystemTime::now()
        .duration_since(UNIX_EPOCH)
        .unwrap()
        .as_nanos …