I'm taking k=805M-810M to n=1K in parallel on the old and new script (using PFGW versions 3.2.3 and 3.3.1). I'll probably finish it out to n=25K afterwards.

I,ll take 810M-820M to n=25k

Lennart

k=805M-810M done to n=25K. Primes, MOBs, and remaining k's emailed to Gary. 20 k's remaining.
[CODE]805203712*3^n-1
805477084*3^n-1
805502746*3^n-1
805562696*3^n-1
805584718*3^n-1
806457668*3^n-1
806812334*3^n-1
806938016*3^n-1
807520132*3^n-1
807694046*3^n-1
807763906*3^n-1
807842738*3^n-1
807898562*3^n-1
808112254*3^n-1
808845332*3^n-1
808879574*3^n-1
809052676*3^n-1
809165542*3^n-1
809504114*3^n-1
809916974*3^n-1
[/CODE]

Is there work available that's closer to "normal" sieving or LLR, meaning you just run a program to do it? I'm not actually reserving anything, just asking for future reference.

Random jabbering follows:

I have one of the first quad-cores made, a Core2Quad at 2.8GHz(the older stepping for those who know what that means, and if you don't I'm just regurgitating what I heard, so only understand that it's significant without knowing why), not sure how that rates today.I have other upgrades I want to make if I can get a better job, including my wardrobe(cafepress.com has been neglected by me for too long).

[quote=jasong;204831]Is there work available that's closer to "normal" sieving or LLR, meaning you just run a program to do it? I'm not actually reserving anything, just asking for future reference.

Random jabbering follows:

I have one of the first quad-cores made, a Core2Quad at 2.8GHz(the older stepping for those who know what that means, and if you don't I'm just regurgitating what I heard, so only understand that it's significant without knowing why), not sure how that rates today.I have other upgrades I want to make if I can get a better job, including my wardrobe(cafepress.com has been neglected by me for too long).[/quote]
Right now pretty much all the Riesel base 3 stuff is somewhat more involved than just "run a program to do it". However, we do have a PRPnet server set up for Sierpinski base 22 work (which is much closer to a proof than base 3, and as such is arguably a better use of CPU power anyway), which would definitely fill that bill. See [url=http://www.mersenneforum.org/showthread.php?t=12225]this thread[/url] for more info on it and how to run it.

Your Core 2 Quad sounds like it should be quite good for this project. i7's, i5's and the like are still new enough that pretty much any Core 2 Quad can still be considered quite modern. :smile:

KEP had completed k=580M-600M for n<=25K but I wanted to "fill in the hole" for the range on the pages so I did it also. There are 102 k's remaining, which are now listed on the pages. He has the same # of k's remaining and will check against my list, which is also attached here.

I am also in the process of double checking the k=500M-580M range. I should be done in 2 days.

[QUOTE=gd_barnes;204872]KEP had completed k=580M-600M for n<=25K but I wanted to "fill in the hole" for the range on the pages so I did it also. There are 102 k's remaining, which are now listed on the pages. He has the same # of k's remaining and will check against my list, which is also attached here.

I am also in the process of double checking the k=500M-580M range. I should be done in 2 days.[/QUOTE]

Just to let you know, there is a 100% match between my 102 k's and those 102 k's you've listed on the pages :smile:

KEP

[quote=KEP;204918]Just to let you know, there is a 100% match between my 102 k's and those 102 k's you've listed on the pages :smile:

KEP[/quote]

Very good. Nice work.

[quote=gd_barnes;204872]I am also in the process of double checking the k=500M-580M range. I should be done in 2 days.[/quote]

I've completed the double check of k=500M-580M to n=25K. The total count of 460 k's remaining matched but there were 2 problems. This is really very good considering that there were 3 different searchers for the range, that R3 was being transitioned to the Riesel base 3 attack and then back to the regular threads here, and that we didn't have a completely stable starting bases script that automatically removed MOB at that point.

k that I have remaining at n=25K that was not shown previously:
511387054

k that was shown as remaining but that I found a prime for (prime n-value in parens):
519213098 (1760)

I subsequently triple checked k=511387054 to n=25K and it is definitely remaining. (Perhaps it has an n>25K prime?)

At this point, I can't easily tell if these problems were in the original searches, my listing of the k's remaining on the pages, or KEP's listing on his old pages. Regardless, it would only matter if the problems were numerous.

KEP, you'll need to add k=511387054 to and delete k=519213098 from the k's that you are sieving for k=200M-700M / n=25K-100K.

I'm also going to double check the rest of k<=810M to n=25K over the next 1-2 months.

I've been double checking quite a few things lately and this is only one of them. You'll also see a post in the bases 4-32 thread where I missed removing a couple of k's on Sierp base 19 as well as a couple of missing primes that were found on R138 a little while back.


Gary

OK, is adding k=511387054 and removing k=519213098 from the sieve file.

Regards

KEP

k=511387054 is completed for n=25K+1 to n<=100K :smile:

Attached is the residuals.

Regards

KEP

Detailed and way more factbased status update as of February 26th 2010:

Regarding Riesel base 3, k=3677878: ETA March 16 2009, if a prime isn't found. (< 1190 tests remain or about 1.8 billion iterations)

Regarding Riesel base 3, k>200M to k<700M range: I have removed k=519213098 from testfile aswell from sievefile. k=511387054 hasn't been added to the sievefile, since it was completed seperately shortly after I got aware of the missed k. ETA for completion will be around 31 May 2010.

KEP