even ks and the Riesel Conjecture

[kar_bon]

reserving k=239107 for n>564k, the point jasong's sievefile starts.

[jasong]

Originally Posted by kar_bon

reserving k=239107 for n>564k, the point jasong's sievefile starts.

Yeah, I deleted everything before that because it was tested already. Probably a bad idea, since the primality testing files probably aren't recoverable at the moment.

[kar_bon]

k=239107 is at 789k, no prime yet

reserving k=175567 from jasongs sieve file from 525k too.

end of the week the page with all info of this 'small' project is in the new update for www.15k.org, so hope next week they online.

to Andersen and jasong: please check than and info me if there are errors or missing informations.
karsten

[kar_bon]

k=239107 tested to 794k, no prime yet
k=175567 upto 596k, no prime
searching further

the new data pages on www.15k.org are available. there's also a page for the even Riesel problem here: http://www.15k.org/EvenRieselProblem.htm (date is 30.11.2007 so above info not included yet).

[kar_bon]

k=239107 tested to 838k, no prime
k=175567 tested to 655k, no prime
searching further

[jasong]

Originally Posted by kar_bon

k=239107 tested to 838k, no prime
k=175567 tested to 655k, no prime
searching further

How high do the n-values go? I'd be happy to start sieving those numbers if you want, just tell me the lower bound. (I've always made the upper bound 5 times as much as the lower bound when I sieve)

[kar_bon]

i took your sieved files for 175567 and 239107, both upto n=2.5M.
i sieved 175567 upto p=156G and 239107 upto p=118G.

[gd_barnes]

Originally Posted by kar_bon

i took your sieved files for 175567 and 239107, both upto n=2.5M.
i sieved 175567 upto p=156G and 239107 upto p=118G.

I have now incorporated multiples of the base into the "Conjectures 'R Us" project and web pages so this effort is now included in them.

I downloaded these sieved files and there is a link to them on one of the pages. They aren't sieved nearly far enough for testing even below n=1M, let alone above that. I can spare 2 cores for a day on a speedy sieving machine using very speedy sr1sieve on each k. Would you like me to sieve them further? I may be able to push P=750G-1T in a day on both, which probably still won't be far enough but should help you quite a bit. This is based on an estimate of P=7-9M/sec. using sr1sieve.


Gary

[gd_barnes]

The "Conjectures 'R Us" project now incorporates k's that are multiples of the base so this thread is, in effect, a subset of the project.

Would anyone have any objection to coordinating future work on this effort through the conjectures project similar to the way bases 6-18, 22, 23, etc. threads have been moved and coordinated in the past?

If people are OK with this, I'll suggest that this thread be moved over to the project thread (which is now a sub-forum in 'Prime Search Projects') and ultimately be locked.

I haven't incorporated the even-k Sierp side yet but will request the same of that thread when I have.


Thanks,
Gary

[kar_bon]

i tested 239107 from jasong last n (564k) upto 873k now with no prime yet.

175567 tested from 525k to 655k, no prime.

i'll send you the remaining test-files for further sieving!

[gd_barnes]

Originally Posted by gd_barnes

The "Conjectures 'R Us" project now incorporates k's that are multiples of the base so this thread is, in effect, a subset of the project.

Would anyone have any objection to coordinating future work on this effort through the conjectures project similar to the way bases 6-18, 22, 23, etc. threads have been moved and coordinated in the past?

If people are OK with this, I'll suggest that this thread be moved over to the project thread (which is now a sub-forum in 'Prime Search Projects') and ultimately be locked.

I haven't incorporated the even-k Sierp side yet but will request the same of that thread when I have.


Thanks,
Gary

I have now made all site 'Conjectures 'R Us' site updates for k's that are mutliples of the base for both the Riesel and Sierp conjectures. Here, I added k=351134 and 478214 as needing primes.

After a couple of days, I'll request that this thread be moved to the "Conjectures 'R Us" prime search project to avoid duplication of effort. Since work is still remaining, if people prefer, we can leave this thread open there.


Gary