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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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News

base S16 Megaprime
WezH, a member of the team Universe Examiners found a megaprime for base S16.
The prime 30397*2^7838120+1 has 2.359.514 digits digits and entered the T5k PrimePages.
22 Aug 2025, 15:15:08 UTC · Comment


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 Aug 2025, 9:24:18 UTC · Comment


BOINC server restart required today (done)
copy/paste stopped working but is needed on guest, a short restart is planned later today. 17 Aug 2025, 9:39:02 UTC · Comment


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 Aug 2025, 16:40:26 UTC · Comment


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 Aug 2025, 14:49:17 UTC · Comment

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