GPUers, please TF my exponents!

[monst]

I found a factor the first night...

M44322479 has a factor: 4191953478431140516439

... still working on the rest.

[Prime95]

Originally Posted by monst

I found a factor the first night...

M44322479 has a factor: 4191953478431140516439

... still working on the rest.

Wonderful! Thanks, that saves me (and the GIMPS project) 2-3 weeks of LL testing. Perhaps that will encourage others to take advantage of this great service GPUers can provide.

[ET_]

Originally Posted by Prime95

Wonderful! Thanks, that saves me (and the GIMPS project) 2-3 weeks of LL testing. Perhaps that will encourage others to take advantage of this great service GPUers can provide.

I was doing some TF and LL-D on my GPU, but am considering to join a sub-project here.

Just note that I have only a GTX 275, not a 4xx or 5xx monster...

If you have some spare exponents, please count me in.

Luigi

[davieddy]

Originally Posted by Mr. P-1

What you said about 72 bit being achievable may be true in theory. But in practice, we can't even get them all up to 70.

I'm not talking about the expiries. I'm talking about 200 a day to stay
ahead of the wavefront. We have two years worth of 71 bits. Plenty time for one more.
BTW 72 bits being the feasible goal came from Jacob rather than me.

I'd cite the post, but this game changes by the day.
Hence the stupidity of looking further than two years ahead.

David

[Chuck]

Originally Posted by Mr. P-1

After last night's exponent grab, and today's disbursements I am tracking 2054 assignments allocated to 6 GPUers. That figure does not include the several hundred that have been reported back to me as completed, and which I have unreserved. I have 930 assignments in reserve.

My reserves are reasonable, given that I need to be able to meet requests, but bear this in mind: I've only been doing this a week. I grabbed fewer exponents in the first few days, not realising how big this "mini-project" was going to get. Had I grabbed all the exponents I'm now targetting (all those below 53M and TFed below 70) from the very start, my reserves would be more than double what they are.

Over the next week another 4000+ such exponents will expire. I could grab them all, but then what? My current volunteers already have plenty of work queued up. Unless I get a lot more GPUers volunteering, I will have to let many of them go TFed only to 69.

What you said about 72 bit being achievable may be true in theory. But in practice, we can't even get them all up to 70.

I still have 374 queued up, 27 to 69 bits and the rest to 70.

[Mr. P-1]

Originally Posted by davieddy

I'm not talking about the expiries. I'm talking about 200 a day to stay
ahead of the wavefront. We have two years worth of 71 bits. Plenty time for one more.
BTW 72 bits being the feasible goal came from Jacob rather than me.

The wavefront is just short of 56M, and most of these exponents have been TFed to 71. Sure, we could maybe take 200 56M exponents per day to 72, finding about 2 factors per day that we would otherwise miss.

Or for the same resources, we could take maybe 700 exponents* or thereabouts between 45M and 53M from 69 to 70, finding about 7 factors per day.

I've already asked you why your proposal is better than what we're doing. I'm still waiting for your explanation.

*It wouldn't be four times as many, because it takes longer to factor smaller exponents to the same bit level.

[kladner]

Originally Posted by Chuck

I still have 374 queued up, 27 to 69 bits and the rest to 70.

I have about 250 to go, all to 70 bits. They range from 51M to 55M.

[Mr. P-1]

Originally Posted by Chuck

I still have 374 queued up, 27 to 69 bits and the rest to 70.

The ones to 69 bits will all be less than 50M.

My thinking here is that among those exponents needing 69-70, I am prioritising the higher exponents, on the grounds that they take less time to complete, and that any factors found are more valuable.

Factorisation 68-69 has priority, but once this has been done, these small exponents fall to the end of the priority queue. But I can't always be bothered with this, so sometimes I just tell people to take them straight from 68-70.

[Dubslow]

Mr. P-1, I can take around 50-100 more assignments at the moment. I have ~25 in queue right now.

[garo]

Originally Posted by Mr. P-1

Factorisation 68-69 has priority, but once this has been done, these small exponents fall to the end of the priority queue. But I can't always be bothered with this, so sometimes I just tell people to take them straight from 68-70.

Too much micromanaging involved. Just take them to 70 already!

[Mr. P-1]

Originally Posted by garo

Too much micromanaging involved. Just take them to 70 already!

Agreed, given that there are so few of them. I'll do that in future.

Could everyone who has accepted assignments from me please send me your results files after you have submitted them to the server. It doesn't matter if they have other assignments mixed in with mine.

Thanks everyone for your help.