Join the distributed search for square-cube pandigitals!
Square-cube pandigials ("nice" numbers) seem to be distributed pseudo-randomly. It doesn't take very long to check if a number is pandigital in a specific base, but even after we narrow the search range to numbers with the right amount of digits in their square and cube there's a lot of numbers to check. This system coordinates multiple clients to search more efficiently.
For more background, check out the original article and my findings.
Download the prebuilt client binary for your system and run it:
./nice_client
This will run once with default settings and submit your results to the server anonymously.
A typical use-case involves running multiple clients continuously, in parallel, with a particular username:
screen -dm ./nice-client -r -u your_name
You can find various settings and their options with the --help flag:
Usage: nice_client [OPTIONS] [MODE]
Arguments:
[MODE]
The checkout mode to use
[default: detailed]
Possible values:
- detailed: Get detailed stats on all numbers, important for long-term analytics
- niceonly: Implements optimizations to speed up the search, usually by a factor of around 20. Does not keep statistics and cannot be quickly verified
Options:
--api-base <API_BASE>
The base API URL to connect to
[default: https://nicenumbers.net/api]
-u, --username <USERNAME>
The username to send alongside your contribution
[default: anonymous]
-r, --repeat
Run indefinitely with the current settings
-q, --quiet
Suppress some output
-v, --verbose
Show additional output
-b, --benchmark <BENCHMARK>
Run an offline benchmark
Possible values:
- default: The default benchmark range: 1e5 @ base 40
- large: A large benchmark range: 1e7 @ base 40
- extra-large: A very large benchmark range: 1e9 @ base 40. This is the size of a typical field from the server
- hi-base: A benchmark range at a higher range: 1e5 @ base 80
-h, --help
Print help (see a summary with '-h')
-V, --version
Print version
This repository has a common library with most actual functionality included. There are two binaries: the API server and the client. These can be run directly from source with cargo run -p nice_api or cargo run -p nice_client.
There are also a few scripts, to be used with rust-script. You can install it with cargo install rust-script then run the scripts directly. It will take a while to build the first time you run it.
If you want to run a copy of this server yourself, a SQL schema file has been provided. You can build the bases and fields with the insert_fields script.
It's the sixth time. And no comment.