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Published papers

Hardware requirements

  • non AVX AMD/Intel CPU 2.3Ghz+
  • Recommended: AVX,AVX2/FMA3/AVX512 compatible AMD/Intel CPU 2.3Ghz+, HT off

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User profile Profile rebirther
Iam the admin of the project. The main goal is to push the Mersenne CRUS project forward to get it finish in lifetime.

News

base S914 Megaprime / proven
Science United found a megaprime for base S914.
The prime 2*914^469757+1 has 1.390.926 digits and entered the T5k PrimePages.
It is the first proven base in 2025.
19 Feb 2025, 20:09:06 UTC · Comment


base S820 Megaprime
Kf4ypd, a member of the team Gridcoin found a megaprime for base S820.
The prime 16723*820^431579+1 has 1.257.546 digits and entered the T5k PrimePages.
11 Jan 2025, 21:17:38 UTC · Comment


new TF app testing started
first testing batch:

- 3000 WUs
- 2 max WUs per GPU
- output / app config testing
- 1 credits
- 6h deadline
- 28s per test on a RX5000XT
9 Jan 2025, 13:14:03 UTC · Comment


CRUS goals for 2025 released
We have finished all 2024 goals but this year it's harder.

2025 project goals

Recommended bases and efforts
1 Jan 2025, 10:40:05 UTC · Comment


SRBase - 10 years review
The project has passed the tenth year...

Compared with last years the following process was made:

2014-2015 - 1 base proven, 314 bases unstarted
2015-2016 - 5 bases proven, 297 bases unstarted
2016-2017 - 5 bases proven, 282 bases unstarted
2017-2018 - 1 base proven, 264 bases unstarted
2018-2019 - 6 bases proven, 218 bases unstarted
2019-2020 - 4 bases proven, 120 bases unstarted
2020-2021 - 3 bases proven, 101 bases unstarted
2021-2022 - 0 bases proven, 97 bases unstarted
2022-2023 - 3 bases proven, 69 bases unstarted
2023-2024 - 4 bases proven, 69 bases unstarted
in total - 32 bases proven, 56 bases unstarted

Things went very well for the CRUS project this year. In total 11 bases were proven, 4 of them by BOINC.

At the end of the year, GIMPs decided to change the output file for TF shortly. It now contains a residue to make better comparisons / double checks on different hosts.

Old output:
no factor for M236575483 from 2^69 to 2^70 [mfakto 0.16-beta.2-Win cl_barrett15_71_gs_2]

New output:
{"exponent":236575483, "worktype":"TF", "status":"NF", "bitlo":69, "bithi":70, "rangecomplete":true, "program":{"name":"mfakto", "version":"0.16-beta.2", "subversion":"cl_barrett15_71_gs_2"}, "timestamp":"2024-12-28 14:18:03", "aid":"0E258D8EC77DBB310739E8CC86D50000", "os":{"os": "Windows", "architecture": "x86_64"}}

Therefore, all applications for TF must be updated and the server config changed. Tests will follow soon.

There are still problems with AMD cards 6000+ and latest Intel Arc GPUs for the mfakto application. It will take some time due to a lack of availability to change them.

Thanks to everyone who made this possible!
31 Dec 2024, 11:24:47 UTC · Comment


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