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Forum: And now for something completely different 2021-12-01, 14:19
Replies: 8
Views: 2,047
Posted By Trilo
Woodall-Williams Series is now to b=100000, no...

Woodall-Williams Series is now to b=100000, no new primes.

I wrote a (slow) python sieve for "Generalized Woodall-Williams/Cullen-Williams" numbers of the form (b+x)*b^(b+y) +/- 1 for constant x,...
Forum: Riesel Prime Search 2021-11-19, 12:46
Replies: 1,977
Views: 231,638
Posted By Trilo
81*2^2375447-1 is prime! (715083 digits) ...

81*2^2375447-1 is prime! (715083 digits)
81*2^2797443-1 is prime! (842117 digits) (New personal record :banana:)
Forum: Hardware 2021-11-05, 14:58
Replies: 59
Views: 5,610
Posted By Trilo
DDR5 is quad channel. I assume this helps with...

DDR5 is quad channel. I assume this helps with these benchmarks especially with y-cruncher being memory bound.
Forum: No Prime Left Behind 2021-11-02, 14:46
Replies: 1,538
Views: 226,140
Posted By Trilo
623*2^1635956-1 is prime!

623*2^1635956-1 is prime!
Forum: No Prime Left Behind 2021-10-28, 16:02
Replies: 1,538
Views: 226,140
Posted By Trilo
483 · 2^1643412 - 1 is prime.

483 · 2^1643412 - 1 is prime.
Forum: Riesel Prime Search 2021-10-22, 02:11
Replies: 1,052
Views: 160,280
Posted By Trilo
Talking after speaking with ryanp he completed k= 21 from...

after speaking with ryanp he completed k= 21 from n=6-7m. I'll keep k=21 reserved along with k=81.

k=55 at n= 3.52m.



Only time will tell ;)
Forum: Riesel Prime Search 2021-10-21, 23:53
Replies: 1,052
Views: 160,280
Posted By Trilo
In contact with ryanp as it seems he was working...

In contact with ryanp as it seems he was working on k=21 before me. Reserving k= 81 instead.
Forum: No Prime Left Behind 2021-10-21, 22:57
Replies: 1,538
Views: 226,140
Posted By Trilo
465 · 2^1638583 - 1 is prime! :) Doing my...

465 · 2^1638583 - 1 is prime! :)

Doing my part to keep the drives at top 5000 level reporting!
Forum: Riesel Prime Search 2021-09-27, 15:30
Replies: 1,052
Views: 160,280
Posted By Trilo
Reserving k=21 from 3.5m Building a new...

Reserving k=21 from 3.5m

Building a new computer (Ryzen 5950x) on Friday excited to get it crunching!
Forum: Riesel Prime Search 2021-09-27, 15:24
Replies: 679
Views: 87,335
Posted By Trilo
Congrats! What range have you completed n=5 to?

Congrats! What range have you completed n=5 to?
Forum: Riesel Prime Search 2021-09-09, 15:30
Replies: 1,052
Views: 160,280
Posted By Trilo
k=55 at n=3.45m.

k=55 at n=3.45m.
Forum: Riesel Prime Search 2021-07-14, 22:09
Replies: 1,052
Views: 160,280
Posted By Trilo
k=55 at 3.04M.

k=55 at 3.04M.
Forum: Riesel Prime Search 2021-02-18, 20:41
Replies: 1,052
Views: 160,280
Posted By Trilo
k=55 at n=2.4M.

k=55 at n=2.4M.
Forum: Software 2021-02-15, 21:05
Replies: 13
Views: 2,211
Posted By Trilo
Hi, I have a machine with 3 cards: 2x gtx1060 6gb...

Hi, I have a machine with 3 cards: 2x gtx1060 6gb and a 980 ti. How would I ensure that I can run LLRcuda instances on all 3 cards? Just run 3 instances of it?
Forum: Riesel Prime Search 2021-02-11, 04:58
Replies: 1,977
Views: 231,638
Posted By Trilo
55*2^2048305-1 is prime! (627441 digits)

55*2^2048305-1 is prime! (627441 digits)
Forum: Riesel Prime Search 2021-02-06, 14:46
Replies: 1,052
Views: 160,280
Posted By Trilo
k=55 at 2.2M.

k=55 at 2.2M.
Forum: Software 2020-12-03, 22:29
Replies: 178
Views: 43,810
Posted By Trilo
Multithreaded LLR on prpnet

Hi, is there anyway to run multithreaded LLR instances using prpnet? I tried adding ThreadsPerTest=1 in llr.ini but it appears that prpnet rewrites the file upon bootup and the changes do not get...
Forum: No Prime Left Behind 2020-11-20, 17:08
Replies: 1,538
Views: 226,140
Posted By Trilo
471*2^1604233-1 is prime! (482925 digits)

471*2^1604233-1 is prime! (482925 digits)
Forum: Hardware 2020-11-03, 17:43
Replies: 28
Views: 5,681
Posted By Trilo
Thank you, this is what I originally figured. So...

Thank you, this is what I originally figured. So I'm correct in assuming the discussion about ram is only relevant because the fft is too large to fit into L3 cache for GIMPS?

If so then it seems...
Forum: Hardware 2020-11-03, 14:13
Replies: 28
Views: 5,681
Posted By Trilo
The threadripper 3960x has 128MB of L3 cache and...

The threadripper 3960x has 128MB of L3 cache and 24 cores= 5.1MB L3/core. I've heard that a rough estimate of how much an LLR test takes in memory is anywhere from 6 to 12* fftlen. So I should be...
Forum: And now for something completely different 2020-10-28, 00:36
Replies: 8
Views: 2,047
Posted By Trilo
Continuing Woodall-Williams from b=12000.

Continuing Woodall-Williams from b=12000.
Forum: Hardware 2019-12-26, 21:17
Replies: 46
Views: 14,961
Posted By Trilo
Thank you for the clarification I'm new to...

Thank you for the clarification I'm new to building PC's and assumed #of DIMM sockets= #of channels.

My original basis for choosing the i5 9600k is the high gflops/core scoring based on primegrid...
Forum: Hardware 2019-12-26, 19:09
Replies: 46
Views: 14,961
Posted By Trilo
Planning a build to perform LLR tests on numbers...

Planning a build to perform LLR tests on numbers from 1.5m-5m bits. With FFT's of this size (much smaller than world record sizes), would memory bandwidth be as much of a concern? Could FFT's of this...
Forum: Riesel Prime Search 2017-08-06, 07:53
Replies: 1,977
Views: 231,638
Posted By Trilo
Since we are on the subject of consecutive large...

Since we are on the subject of consecutive large primes with small n gaps, here is a pair I found a while back:

1423*2^2179023-1
1423*2^2178363-1

The most interesting thing about this pair is...
Forum: Riesel Prime Search 2017-08-02, 15:16
Replies: 548
Views: 60,203
Posted By Trilo
1448-1452 complete, 1 prime: 2745*2^1449470-1

1448-1452 complete, 1 prime: 2745*2^1449470-1
Showing results 1 to 25 of 115

 
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