is a mathematical research project that uses Internet-connected computers trying to solve Sierpinski / Riesel Bases up to 1030. You can participate by downloading and running a free program on your computer.
The project is in collaboration with the Mersenne CRUS project.
The server is running on a private computer in a VM.
The invitation code
for creating new accounts is pillepalle
You can only create new accounts over the website.
- Gary - Mersenne/CRUS admin - results
- Odicin - scripts
- rebirther - SRBase admin
- Riesel Base: 402/1032 proven (01.10.2021)
- Sierpinski Base: 393/1032 proven (05.06.2022)
94 unstarted bases (19.01.2023)
About Trial Factoring
is a subproject for GPU Trial Factoring of Mersenne Prime candidates
- rebirther - Admin
- DeleteNull - app mods
- KEP - helper
- k3ack3r - dev
- Prime95 - GIMPS admin / work distribution
- non AVX AMD/Intel CPU 2.3Ghz+
- Recommended: AVX,AVX2/FMA3/AVX512 compatible AMD/Intel CPU 2.3Ghz+, HT off, Ryzen 3xxx+ serie HT on for smaller WUs
User of the day
Extreme Sports Winter X Games challenge (01/27/2023 01:00 (UTC) - 01/29/2023 01:00 (UTC)
BOINC Games has published the sprint project, SRBase was choosen, unfortunately no one got an info at the right time. Nevertheless we have enough work. Preparing more later.
27 Jan 2023, 9:04:11 UTC
SRBase - 8 years review
The project has passed the eighth year.
Compared with last years the following process was made:
2014-2015 - 1 base solved, 314 bases unstarted
2015-2016 - 5 bases solved, 297 bases unstarted
2016-2017 - 5 bases solved, 282 bases unstarted
2017-2018 - 1 base solved, 264 bases unstarted
2018-2019 - 6 bases solved, 218 bases unstarted
2019-2020 - 4 bases solved, 120 bases unstarted
2020-2021 - 3 bases solved, 101 bases unstarted
2021-2022 - 0 bases solved, 97 bases unstarted
in total - 25 bases solved, 97 bases unstarted
That was the worst year ever. Broken hardware parts, war and also a high inflation after corona which affects the costs.
The llr application has been replaced by the llr2, less work and no unnecessary doublechecks but with less performance. Intel ARC is now supported,
cuda12 apps for 4xxx cards are in progress.
The project has almost completed the 73-74bit lvl at TF, 74-75bit is in progress, which is now taking considerably more time.
The new CRUS goals for 2023 are available and some have already been set up.
I wish you all a healthy new year 2023 and of course healthy hardware!
31 Dec 2022, 11:11:22 UTC
Intel ARC apps deployed
for Windows and Linux, to enable it in your prefs, choose Intel
This is still in test to tweak the plan_class to get work. Iam hoping to avoid Intel HD Graphics if you have both onboard.
24 Dec 2022, 9:48:41 UTC
CRUS goals for 2023 released
23 Dec 2022, 9:17:30 UTC
Intel ARC testers needed
To collect some datas for the devs we need some testers with Intel ARC GPUs.
Run mfakto --perftest on windows, linux is a bit different somewhere standalone on your PC and post the output here.
22 Dec 2022, 16:27:29 UTC
News is available as an RSS feed