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#51
Prime Crunch / Project Overview
Last post by Dingo - July 15, 2026, 03:57:19 PMProject Summary
Hunt for giant primes.
Make mathematical history.
primecrunch is a distributed search for large Riesel primes. A focused frontier where your contribution actually matters. Download the lightweight client, donate spare compute, and you could be the one to find the next record-breaking prime.
Connecting to Project
The project's Home Page is located at: https://primecrunch.com/
To download the software go to : https://primecrunch.com/download
Your profile is at: https://primecrunch.com/profile/USER NAME
Help documentation is on this page: https://primecrunch.com/help
Project Conversations and News
The Project Forum is at https://primecrunch.com/forum
The Project blog is located at: https://primecrunch.com/blog
Platform Statistics
The Overall Statistics for the project are at https://primecrunch.com/stats
Top Primes Found: https://primecrunch.com/top-primes
To see your jobs running: https://primecrunch.com/jobs
NOTE: To limit the number of cores that run the application use ./crunch -p 2 in Linux and just crunch.exe -p 2 in Windows to use two cores. This lets you contribute without noticeably impacting other work on the machine. By default crunch uses all cores.
For all the following you need to be in the folder that crunch is in to run the command.
You can run in the background so you do not need to keep the cmd window open:
Windows: In CMD window: start /B crunch.exe options from below
To stop it after: taskkill /IM crunch.exe /F
Ubuntu/Linux: In a Terminal window: ./crunch &
(The terminal will output a job number and a Process ID (PID) (e.g., [1] 28453).)
To stop later: kill PID Number. like kill 28453
Your Attached Machines: https://primecrunch.com/machines
There is a lot of information on the web site.
Team Name
I am waiting to create a Team as I need to complete one peta-op of lifetime work to create a Team.
Team Name: BOINC-AUSTRALIA
Team Position: https://primecrunch.com/teams
Extended Info for adventurous Users.
when you start the application these are the current options:
Usage of crunch:
-I duration
result reporting interval; drain pending results then pause for this duration, negative to disable (e.g. 30s, 5m; 0 = report immediately)
-U run update once now and exit (no restart loop)
-b int
number of work units to buffer
-c string
sets and alternative working directory (default "C:\\Users\\USER\\.crunch")
-d prevents further downloads but downloaded units will be crunched
-l string
log level: debug, info, warn, error (default "info")
-p int
number of processes to run parallel (default 6)
-r duration
progress report interval; minimum 1m, negative to disable (e.g. 5m, 30s rounds up to 1m) (default 5m0s)
-s string
set an alternate work server (default "https://api.primecrunch.com/v2")
-tui
enable the rich terminal dashboard (default true; set -tui=false to disable) (default true)
-u enable periodic update checks (default true; set -u=false to disable) (default true)
-v prints version and exits
#54
SRBASE / Re: Project Update
Last post by Polaxis - July 14, 2026, 05:18:28 AMQuote from: Dingo on July 13, 2026, 01:48:28 PMNice, congratulations hypersphinx!Quote[SRBase] base S811 Megaprime
hypersphinx, a member of the team BOINC@AUSTRALIA found a megaprime for base S811.
The prime 450*811^373026+1 has 1.085.144 digits and entered the T5k PrimePages.
View article · Sun, 12 Jul 2026 07:21:29 +0000
#57
SRBASE / Re: Project Update
Last post by Dingo - July 13, 2026, 01:48:28 PMQuote[SRBase] base S811 Megaprime
hypersphinx, a member of the team BOINC@AUSTRALIA found a megaprime for base S811.
The prime 450*811^373026+1 has 1.085.144 digits and entered the T5k PrimePages.
View article · Sun, 12 Jul 2026 07:21:29 +0000
#59
OPEN DISCUSSION / Re: Happy Birthday Team
Last post by chooka03 - July 12, 2026, 06:07:13 PMHappy birthday team!!!
Thank you to all for your crunching support!
Thank you to all for your crunching support!