BOINC Sieving

[hhh]

I know that DPC wasn't in the rankings because they submitted no results. Well, know... I thought so.
That is why I am going to do it as a member of DPC. Just to get them active in a somewhat smaller project.
And who knows, maybe others DPC'ers find their way here as well.

If you want to do some good to SoB, and the fame of the DPC, you direct as many people as possible to Primegrid, crunching PSP/SoB joint work.

The reasons:

- sieving helps Sob even more than doing PRP tests;
- becoming number 1 should not be so difficult over there.
- everything is automatic, and easy, hence suited for a big crowd of people
- it is easier to manage new BOINC member for the admins than 50 new manual sieving members
- I think the manual sieving stats are somehow obsolete after the enormous success of the BOINC sieving revolution. (See Primgrid is already the number 2 all time user?)

H.

[balachmar]

just one more question, where do I register my username and team for the psp project?

[Matt]

For manual sieving you should post on the PSP forum on this thread ( http://www.mersenneforum.org/showthread.php?t=8162 ) to get your username added to the factor submission form. You can then post on this thread ( http://www.mersenneforum.org/showthread.php?t=2692 ) to join a team.

[balachmar]

OK, me again.
I just completed sieving of a range:
The reserved range was:
12303000G - 12303100G

I ran this command (on linux):
./sr2sieve -s -p 12303000000000000 -P 12303100000000000 --intel

And the result on screen was:
sr2sieve 1.7.9 -- A sieve for multiple sequences k*b^n+/-1 and b^n+/-k.
Read 1963642 terms for 16 sequences from dat format file `SoB.dat'.
Split 16 base 2 sequences into 160 base 2^360 subsequences.
Expecting to find factors for about 0.43 terms in this range.
sr2sieve 1.7.9 started: 991 <= n <= 49999997, 12303000000000000 <= p <= 12303100000000000
p=12303099997319357, 671093 p/sec, 0 factors, 100.0% done, ETA 15 May 04:07
sr2sieve 1.7.9 stopped: at p=12303100000000000 because range is complete.

What do I need to put into the form to send in the results?

OK, from what I have read so far, there is no factor found, so I have nothing to submit.
Because if it does find a factor, there would have been a factors.txt and this content I need to submit, right?
But How do I let you guys know that there is no factor to be found in this range?

[Joe O]

When you edit your range to mark it finished, put 0 in the Factors Found.

[balachmar]

Do I need to let PSP sieve know as well?
Or do you only get points for factors you have found?

[hhh]

Do I need to let PSP sieve know as well?
Or do you only get points for factors you have found?

No. That's right. At PSP, instantly; and for SoB factors only, when First(orSecond-)Pass passes them (makes use of them (to eliminate a candidate). (You get a little bit of credit, but the most is to come later).

(Remember someone could find a prime for that k, and then we wouldn't continue at all do LLR on your number).

Hope that makes sense... Yours H.