Project Update

[Dingo]

[SRBase] base R2 2nd conjecture 2 Megaprimes
Science United found a megaprime for base R2 2nd conjecture.
The prime 625783*2^7031319-1 has 2.116.644 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.

Hoshione, a member of the team SETI.Germany found a megaprime for base R2 2nd conjecture.
The prime 580633*2^7208783-1 has 2.170.066 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.

View article · Sun, 31 Mar 2024 13:53:41 +0000

[Dingo]

[SRBase] base S165 Megaprime
[P3D] Crashtest found a member of the team Planet 3DNow! found a megaprime for base S165
The prime 1486*165^497431+1 has 1.103.049 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database. 1k is left

View article · Sun, 7 Apr 2024 14:54:22 +0000

[Dingo]

[SRBase] Server crash
The server crashed due a memory leak. The database was corrupt so restored from todays backup, it was expected but need to investigate which was causing this. wanted to fix this in 3d but came earlier.

View article · Sun, 7 Apr 2024 14:56:42 +0000

[Dingo]

[SRBase] server shutdown on 20.05.
In absence and rehab the project will be shutdown for a month to recover.

A full restart is planned after that if nothing else occured.

If you want to contact me in this time Iam still reached in discord forums.

Many thanks for understanding!

View article · Tue, 7 May 2024 17:51:13 +0000

[Dingo]

[SRBase] The server / project is restarted now
There is a slow progress from rehab but not happy with the results yet. All of the recovering is very slowly with restrictions.

The RAM was tested in the first run and looking ok.

I will test some work too.

I really missed the last pentathlon. Hoping to finish the TF range of GIMPS work too.

View article · Tue, 11 Jun 2024 15:27:16 +0000

[Dingo]

[SRBase] Trial Factoring 75-76bit range started
The next batch of 50k tests is uploading.

The runtime is now ~2h40min on a RX5500 XT and decreasing on higher ranges.

View article · Thu, 11 Jul 2024 10:02:09 +0000

[Dingo]

SRBase: base S24 - 8 more Megaprimes
Ralfy, a member of the team BOINC Confederation found a megaprime for base S24.
The prime 3526*24^741308+1 has 1.023.166 digits and entered the T5k PrimePages.

Science United found a megaprime for base S24.
The prime 2586*24^744604+1 has 1.027.715 digits and entered the T5k PrimePages.

Moor, a member of the team Planet 3DNow! found a megaprime for base S24.
The prime 4606*24^744714+1 has 1.027.867 digits and entered the T5k PrimePages.

Majo2096, a member of the team Antarctic Crunchers found a megaprime for base S24.
The prime 2164*24^748621+1 has 1.033.259 digits and entered the T5k PrimePages.

[SG-FC] dingdong, a member of the team SETI.Germany found a megaprime for base S24.
The prime 5889*24^748409+1 has 1.032.967 digits and entered the T5k PrimePages.

[AF] Kalianthys, a member of the team L'Alliance Francophone found a megaprime for base S24.
The prime 5889*24^750125+1 has 1.035.335 digits and entered the T5k PrimePages.

[AF>Libristes]IxPo, a member of the team L'Alliance Francophone found a megaprime for base S24.
The prime 3609*24^761179+1 has 1.050.592 digits and entered the T5k PrimePages.

Jeff_Wright, a member of the team Gridcoin found a megaprime for base S24.
The prime 26279*24^773017+1 has 1.066.932 digits and entered the T5k PrimePages.

More Information.

[Dingo]

SRBase: base R25 3 Megaprimes
Mohsseni, a member of the LinusTechTips_Team found a megaprime for base R25.
The prime 1962*25^736368-1 has 1.029.402 digits and entered the T5k PrimePages.

firerescuedave, a member of the team Gridcoin found a megaprime for base R25.
The prime 79788*25^783540-1 has 1.095.347 digits and entered the T5k PrimePages.

Mohsseni, a member of the LinusTechTips_Team found a megaprime for base R25.
The prime 262614*25^785579-1 has 1.098.198 digits and entered the T5k PrimePages.
7/06/2025 4:36:15 PM · more...

[Dingo]

SRBase: base S25 4 Megaprimes
Majo2096, a member of the team Antarctic Crunchers found a megaprime for base S25.
The prime 18576*25^803823+1 has 1.123.701 digits and entered the T5k PrimePages.

Sightus@CAU, a member of the team Planet 3DNow! found a megaprime for base S25.
The 18576*25^861647+1 has 1.204.536 digits and entered the T5k PrimePages.

gbusler found a megaprime for base S25.
The prime 108720*25^870094+1 has 1.216.345 digits and entered the T5k PrimePages.

Aionel found a megaprime for base S25.
The prime 231390*25^978885+1 has 1.368.428 digits and entered the T5k PrimePages.
22/06/2025 6:59:54 AM · more...

[Dingo]

SRBase: base S16 Megaprime
Sightus@CAU, a member of the team Planet 3DNow! found a megaprime for base S16.
The 44035*2^4743708+1 has 1.428.004 digits digits and entered the T5k PrimePages.
01/07/2025 6:16:34 AM · more...

[Cruncher Pete]

I don't see our names in there.  I suppose, one should be in it to win it...

[Dingo]

SRBase: base R343 Megaprime
Sightus@CAU, a member of the team Planet 3DNow! found a megaprime for base R343.
The 1334*343^466323-1 has 1.182.270 digits digits and entered the T5k PrimePages.
18/07/2025 3:00:34 PM · more...

[Dingo]

SRBase: estimated runtime change for TF
We have changed the value in new batch TF_75-76_433-438M

from
<rsc_fpops_est>8e10</rsc_fpops_est>

to
<rsc_fpops_est>18e18</rsc_fpops_est>


for more accurate estimated runtimes to avoid getting too much work.

If there are any issues let us know.
4/08/2025 2:49:17 PM · more...

[Dingo]

SRBase: base S24 - 5 new Megaprimes
Majo2096, a member of the team Antarctic Crunchers found a megaprime for base S24.
The prime 12969*24^834325+1 has 1.151.549 digits and entered the T5k PrimePages.

Sightus@CAU, a member of the team Planet 3DNow! found a megaprime for base S24.
The prime 9721*24^890258+1 has 1.228.749 digits and entered the T5k PrimePages.

grcpool.5, a member of the team Gridcoin found a megaprime for base S24.
The prime 20731*24^897326+1 has 1.238.504 digits and entered the T5k PrimePages.

Sightus@CAU, a member of the team Planet 3DNow! found a megaprime for base S24.
The prime 15921*24^903076+1 has 1.246.440 digits and entered the T5k PrimePages.

zlodeck, a member of the team Russia found a megaprime for base S24.
The prime 20219*24^914407+1 has 1.262.080 digits and entered the T5k PrimePages.
12/08/2025 4:40:27 PM · more...

[Dingo]

SRBase: Project mate - manual testing
is used for starting a new base / range, see status on frontpage.

New bases left - see frontpage
https://www.mersenneforum.org/node/9434?t=12983
https://www.mersenneforum.org/node/9435?t=12984

requirements
- 8-16+ cores, no OC
- python 3.12+
- 50GB+ hdd space
- 32-128GB+ RAM
- AVX2/512
- win10+ only
- limited users

infos
- range 1-2.5k
- use HT, max cores = workers x2
- pythonscript
- some ms per test
- estimated runtime = 8d+ (on 16 core)

progress
- compress your Step 1 folder after the range is done, keep all datas for checking

Use this without running BOINC, get a new special badge (see FAQ) + credits for your manual work

How to use pythonscript
https://wiki.bc-team.org/index.php?title=CRUS/en

Are you interested?

There will be a separate post to get a reservation.
22/08/2025 9:24:18 AM · more...