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drummers-lowrise
1) Message boards : Number crunching : Hans Ivar Riesel's 90th Birthday Challenge (Message 129861)
Posted 6 hours ago by dthononProject donor
On top of what Michael said, it's TPS and not SGS. You can find the list of applications here https://www.primegrid.com/apps.php.
2) Message boards : AP26 - AP27 Search : AP 27 Search (Message 129655)
Posted 6 days ago by dthononProject donor
Hi, I joined PG about 1 month ago, (April 2019), and have found about 150 AP. As the list grows it's more difficult to identify the individual records. As a member of CSF, I report each find with a screenshot record. Any chance of a mre friendly search sequence in the list. Thanks.

In preferences, select reporting of AP23 and above only and print the notification ?
3) Message boards : Storm message board (Message 129567)
Posted 9 days ago by dthononProject donor
Good to know. Indeed, there is not a big difference in throughput and running 6 threads is a good choice.

Bad news from my side: 3 PC unavailable during the first week-end, due to planned power outage...
4) Message boards : Number crunching : New Build (Message 129563)
Posted 9 days ago by dthononProject donor
I haven't bought a new GPU yet, but I think I'm going with a 2080Ti, and hope to be back up on AP27/GFN next month

For about 1/2 the price of a 2080Ti, you can get a couple of 1660Ti. I did not measure precisely yet, but performance are about 2/3: I run sieving around 700P/day with 2*1660Ti compared to around 1000P/day with 2080Ti (https://www.primegrid.com/forum_thread.php?id=8322).
And 2*1660Ti should give a higher throughput than 1*2080Ti for "small" GFN (15 to 17, I guess).
5) Message boards : Seventeen or Bust : The SoB Double Check has begun (Message 129561)
Posted 9 days ago by dthononProject donor
Probably less than 10 weeks left until waiting % drops to 0!
And a bit more than a month to exceed n = 30,731,662.
6) Message boards : Storm message board (Message 129505)
Posted 11 days ago by dthononProject donor
Yes, I will put Sob aside for a week to run TRP.
7) Message boards : Seventeen or Bust : The SoB Double Check has begun (Message 129487)
Posted 12 days ago by dthononProject donor
Today we reach 10 000 waiting WUs )

Do you mean 10.000% Waiting?
8) Message boards : Generalized Fermat Prime Search : GFN prime discoveries II (Message 129472)
Posted 12 days ago by dthononProject donor
3 days without a prime! That's unusual.
9) Message boards : Sieving : GFN Optimal Sieving Levels (Message 129471)
Posted 12 days ago by dthononProject donor
so new work will come out before 6.30?

GFN19 and GFN22 are open for reservation.
10) Message boards : Storm message board (Message 129470)
Posted 12 days ago by dthononProject donor
4 cores for most LLR sounds about right, but each machine does things differently!

Projects like SGS can probly get away with 2 cores

I have all 6 of my i7-8700 cores set for CUL and they still take 10+ hours per WU


Dad, don't take my word for it, there hasn't been one for 10 yearsish so it either means ones due or .....there are no more ;)

There should be more, as stated in https://www.primegrid.com/forum_thread.php?id=7944:
A Cullen number in the form of n*2^n+1. Fr. James Cullen first studied these numbers in 1905 because they have interesting divisibility properties. It is conjectured that there are infinitely many n values that will yield Cullen primes, though it has been shown that almost all are composite.
So one is most certainly due, but alas the probability does not depend on how long before the previous one was found.


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