Bases 4-32 reservations/statuses/primes

[mdettweiler]

Sierp. base 23 is now completed to n=135K; no primes yet on this pesky last remaining k (68). Results are attached for 125K-135K.

Based on my the testing times I'm getting so far (~2300 sec. at n=135K), I'm estimating that the current sieve depth should be good up until a the next couple FFT jumps. Thus, I'll continue testing this base to n=150K.

(Note: Even though the results I've attached for 125K-135K are in LLR format, they were really done with Phrot. However, I had to switch to a different Phrot version in the middle of the test due to a little [since-fixed] bug regarding resuming from an already-started input file. And since the two different versions produce slightly different results formats, I figured that the easiest way to get the whole range's results in a unified format would be to convert them to LLR format. )

[gd_barnes]

Originally Posted by mdettweiler

Sierp. base 23 is now completed to n=135K; no primes yet on this pesky last remaining k (68). Results are attached for 125K-135K.

Pesky? Try the final k on Sierp base 12. lol

Status...complete to n=220K. Nothing to report. Ergh.

Even worse...the final k on Sierp base 9 at n=285K.

Of course than there's Sierp bases with one k remaining for base 10 at 195K, 17 at 240K, 18 at 235K, and 27 at 400K!

All toll; 7 Sierp bases <= 32 with 1 k remaining; all now at n=135K or higher, 6 at n=195K or higher, and 5 at n=220K or higher. (sheesh)


Gary

[gd_barnes]

Sierp base 31 is now complete to n=10K. I'm going to take it up to n=25K. At that point, it should have less k's remaining than either Riesel or Sierp base 19.

110 k's were found prime for n=9.2K-10K. 1934 k's now remain. k's remaining shown on the web pages.


Gary

[MyDogBuster]

Riesel Base 23

Both k's now complete to n=130.5K

Continuing to 200K

[mdettweiler]

Sierp. base 23 is complete to n=150K, no primes. Results for 135K-150K are attached.

Continuing to 175K.

[michaf]

Sierpinski base 24:
Sieved upto 1T, tested to n=35315.
14 primes found since last update

Riesel base 24:
Sieved upto .55T, tested to n=33875
12 primes found since last update

Files have been sent to Gary

[kar_bon]

9577*6^121099-1 is prime!

Riesel base 6 at n=125k, ongoing

[gd_barnes]

Originally Posted by kar_bon

9577*6^121099-1 is prime!

Riesel base 6 at n=125k, ongoing

Karsten,

Nice prime! This also knocks out k=57462 for Riesel base 36. That is:

57462*36^60549-1 is prime!


Question:

Would you consider releasing Riesel base 6 at n=150K? I think it would be nice to run it as a team drive with a PRPnet server like we're doing with Sierp base 6. The Sierp side is nearing completion to n=130K with the 3 lowest k's being tested to n=150K first before resuming the rest of them higher.

I'm asking because even with only 11 k's still remaining at n=125K on the Riesel side, it is still unlikely to be proven in the next decade or more, even with a big team effort on it.



Thanks,
Gary

[gd_barnes]

Originally Posted by michaf

Sierpinski base 24:
Sieved upto 1T, tested to n=35315.
14 primes found since last update

Riesel base 24:
Sieved upto .55T, tested to n=33875
12 primes found since last update

Files have been sent to Gary

Thanks for the huge amount of work on this base Micha.

For everyone's reference, as implied in Micha's Email to me, he is unreserving this base. Although I am showing it as unreserved on the pages, it's going to take me a little while to update them and clean up the sieve file that he has provided up to n=100K so that it can be posted.

I'll probably take care of it as well as many other updates on the pages after I get back from my current trip...likely Thurs. or Fri.


Gary

[gd_barnes]

I got a PM from Karsten saying that he would release Riesel base 6 at n=150K.

Max, let's plan on getting all k's on Sierp base 6 up to n=150K and then pausing if Karsten isn't there yet. We'll then discuss how we want to attack this entire base. It should be an excellent base for a combined team drive using new PRPnet.


Gary

[mdettweiler]

Originally Posted by gd_barnes

I got a PM from Karsten saying that he would release Riesel base 6 at n=150K.

Max, let's plan on getting all k's on Sierp base 6 up to n=150K and then pausing if Karsten isn't there yet. We'll then discuss how we want to attack this entire base. It should be an excellent base for a combined team drive using new PRPnet.


Gary

Okay, sounds good. And, by the way--even if we finish one before the other, we can still go ahead and load whatever's ready into the PRPnet server--it automatically hands out whatever's smallest as the highest priority, so even if, say, the Sierp. side is at 170K by the time we're ready to start on the Riesel side at 150K, that's okay, since as soon as we insert the Riesel work it would immediately start doing that until it's caught up to the Sierp. side, at which point it would commence handing them out jointly.

Of course, if we did decide to hold off on doing Sierp. base 6 for >150K until the Riesel side is ready at that same level, then we could have the PRPnet server spend some time doing other things, say, some of the bases <32 that have only one or two k's remaining. It would be really nice to see a few of those knocked off--and many of them have sieve files already prepared.