[quote=gd_barnes;152957]So then your testing both k's on the base?[/quote]
No, I used srfile to split the provided sieve file into separate files for k=8 and k=68, and am only testing k=8. My plan is to, after I'm done with k=8, possibly do the same for k=68. (I figured I'd "test the waters" first with just one k, since I didn't know how hefty a job this would be. :smile:)

Sierp base 31 is now at n=9200. 109 primes were found for n=8330-9200. 2044 k's now remain.

I currently have it reserved to n=10K. For n>10K, I'll take it on up to at least n=15K using Karsten's automated process.

These bases where b=2^q-1 are extremely prime. There should be less k's remaining for Sierp base 31 at n=25K than there are for Sierp base 19 (1123 remain) for a conjecture about 8 times as high!


Gary

Attached are the results for Sierp. base 23 k=8, which I recently found a prime for as detailed in the primes thread. The results are for n=100K-119215 (I was using Phrot's stop-on-PRP option, so it immediately ceased searching when the prime was found). :smile:

I'll now reserve the last remaining k on Sierp. base 23 (k=68), and take it up to n=125K or until I find a prime (as with k=8). :smile:

The last remaining k on Sierp. base 23 (k=68) is completed to n=125K, no primes; results for 100K-125K are attached. :smile:

I'll unreserve this base for now, though I may come back to it in the near future. (If anyone else wants to grab it in the meantime, though, don't let that stop you. :smile:)

FYI, the sieve file will probably need to be sieved a little deeper to go much further than 125K. Tests are taking about 1700+ seconds on my Core 2 Duo (2.2Ghz). (Not sure exactly how well the file is sieved in comparison to this; I haven't done any hard tests on it.)

Base 10 (riesel+sierpinski) sieved to p~50T, 47072 candidates remaining till n=1M.
I am beginning testing from n=195000, first till 200000 using LLR and then I will doublecheck this range using different versions of phrot.

Re-reserving the last remaining k (68) on Sierp. base 23 from n=125K. I'll take it up to at least 135K, probably 150K. (At any rate, I'll post a status at 135K. :smile:) I may also extend the sieved file at some point; I'm estimating that it should be good enough to test at least to 135K, but I'll be keeping an eye on the testing times to decide when to sieve further. :smile:

Sierp. base 23 is now completed to n=135K; no primes yet on this pesky last remaining k (68). :sad: 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. :smile:

(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. :smile:)

[quote=mdettweiler;154982]Sierp. base 23 is now completed to n=135K; no primes yet on this pesky last remaining k (68). :sad: Results are attached for 125K-135K.[/quote]


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

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

Riesel Base 23

Both k's now complete to n=130.5K

Continuing to 200K

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

Continuing to 175K. :smile: