Bases 6-32 reservations/statuses/primes

[Cruelty]

Base 10 (Riesel + Sierpinski) doublechecked till n=260000 found 3 wrong residues from phrot.

phrot residues:
Input 8579*10^221182-1 is composite LLR64=b667d4b85307f02a. (t=2063.38s)
Input 4421*10^245758-1 is composite LLR64=1e8ed3387e181fa1. (t=2447.12s)
Input 8579*10^245760-1 is composite LLR64=7722d82e4de1412e. (t=2446.96s)
LLR residues:
8579*10^221182-1 is not prime.  RES64: E1D8D5DFFA3B7AE0.  OLD64: A58A819FEEB2709E  Time : 3451.628 sec.
4421*10^245758-1 is not prime.  RES64: C67C1449048278DE.  OLD64: 53743CDB0D876A99  Time : 3003.877 sec.
8579*10^245760-1 is not prime.  RES64: 0A981D33A32F8FD5.  OLD64: 1FC8579AE98EAF7D  Time : 3001.295 sec.

[rogue]

Originally Posted by Cruelty

Base 10 (Riesel + Sierpinski) doublechecked till n=260000 found 3 wrong residues from phrot.

phrot residues:
Input 8579*10^221182-1 is composite LLR64=b667d4b85307f02a. (t=2063.38s)
Input 4421*10^245758-1 is composite LLR64=1e8ed3387e181fa1. (t=2447.12s)
Input 8579*10^245760-1 is composite LLR64=7722d82e4de1412e. (t=2446.96s)
LLR residues:
8579*10^221182-1 is not prime.  RES64: E1D8D5DFFA3B7AE0.  OLD64: A58A819FEEB2709E  Time : 3451.628 sec.
4421*10^245758-1 is not prime.  RES64: C67C1449048278DE.  OLD64: 53743CDB0D876A99  Time : 3003.877 sec.
8579*10^245760-1 is not prime.  RES64: 0A981D33A32F8FD5.  OLD64: 1FC8579AE98EAF7D  Time : 3001.295 sec.

Certain bases are problematic for phrot, which is why 0.70 has error checking on by default. You either did not using 0.70 or disabled error checking with that version. I recommend PFGW now as it should be faster than LLR and phrot.

I do want to get back to phrot and modify the error checking logic so that it isn't used on every iteration. I can probably get it back to within 10% of the non-error checking speed.

[Cruelty]

Originally Posted by rogue

Certain bases are problematic for phrot, which is why 0.70 has error checking on by default. You either did not using 0.70 or disabled error checking with that version. I recommend PFGW now as it should be faster than LLR and phrot.

I do want to get back to phrot and modify the error checking logic so that it isn't used on every iteration. I can probably get it back to within 10% of the non-error checking speed.

That is correct those tests were performed couple of months ago using then-current version of phrot. Right now I am continuing testing base=10 using Prime95 (v25.11) as it is the fastest way (together with PFGW) to test non-base=2 candidates.
BTW: have you noticed how close the last two exponents I've reported are close to one another? It doesn't seem to be a coincidence

[gd_barnes]

Sierp base 31 is at n=15K; 65 primes found for n=14K-15K. 1502 k's remain. Continuing on...

[mdettweiler]

Sierp. base 12 is complete up to n=400K; no primes. Results for 300K-400K are attached.

I've decided to unreserve base 12 in favor of Sierp. base 23, which I'm reserving for n=250K-300K. They're both bases <32 with one k remaining, but base 23 has a sieve file available, which works a bit more conveniently with my current plans for work distribution. Thus, I've decided to switch to base 23 for now; I may go back to base 12 at some point in the future, but if anyone else is interested in doing it, don't let that stop you.

[mdettweiler]

Reserving Sierp. base 30 for sieving n=100K-500K. I may decide to do some PRP testing on this base at some point in the future, though for now I'll just sieve it.

[Siemelink]

Originally Posted by Siemelink

I have started on the remains of Riesel base 23. I'll take it from 180,000 to 200,000

Cheers, Willem

My tests on Riesel 23 have reached 200,000. I forgot about the habit to keep the residues so I have these only partial. And I switched from LLR to pfgw to the latest pfgw so it got a bit confused.

Cheers, Willem.

[Siemelink]

Originally Posted by Siemelink

I have started on the remains of Riesel base 23. I'll take it from 180,000 to 200,000

Cheers, Willem

My tests on Riesel 23 have reached 200,000. I forgot about the habit to keep the residues so I have these only partial. And I switched from LLR to pfgw to the latest pfgw so it got a bit confused.
I found no primes and will continue with Riesel base 160. It's got only one k left to show, I'll try my luck.
Oh, the base 49 tests have reached 150,000 and I have run them from 180,000 to 200,000 as well.

Cheers, Willem.

[MyDogBuster]

Riesel Base 27 tested to n=300K with nothing to report (1 k left)

Continuing

[Cruelty]

Base 10 (Riesel + Sierpinski) checked till n=270000. I'm still working on it.

[mdettweiler]

Sierp. base 23 is complete to n=300K, no primes. Results for 250K-300K are attached. I'm going to release this base for now. Not that it's too big for me to handle or anything like that, mind you, just now that my Sierp. base 30 sieving is ready to break off 100K-250K, I've decided I'll do that next. Thus, I am also reserving Sierp. base 30 for LLRing 100K-250K.