DC sieve (300K

1 Attachment(s)

Lower n Range Sieving (300K < n < 3M)

This is an obsolete thread. Please see the main sieve effort thread here.

Code:

Ranges (0 < p < 75T) P_min P_max UserName Status 0 40000 Arhived [complete] 40000 40010 MikeH [complete] 40010 40040 ceselb [complete] 40040 40100 biwema [complete] 40100 40300 Joe O [complete] 40300 40500 JMBlazek [complete] 40500 40600 Troodon [complete] 40600 40800 biwema [complete] 40800 41000 larsivi [complete] 41000 42000 MikeH [complete] 42000 42500 Mystwalker [complete] 42500 42520 DevilOfDC [complete] 42520 42600 priwo [complete] 42600 42650 cedricvonck [complete] 42650 42700 MKlasson [complete] 42700 42710 Troodon [complete] 42710 42950 larsivi [complete] 42950 43050 priwo [complete] 43050 43120 chvo [complete] 43120 43400 biwema [complete] 43400 43600 Joe_O [complete] 43600 43800 Mat67 [complete] 43800 43840 Troodon [complete] 43840 43900 priwo [complete] 43900 44100 larsivi [complete] 44100 44400 MikeH [complete] 44400 44800 mklasson [complete] 44800 44850 Xeltrix [complete] 44850 45000 chvo [complete] 45000 45300 larsivi [complete] 45300 45500 larsivi [complete] 45500 45750 larsivi [complete] 45750 46000 Troodon [complete] (nickth) 46000 46250 Troodon [complete] (nickth) 46250 46500 larsivi [complete] 46500 46600 Troodon [complete] 46660 46700 Troodon [complete] 46700 47000 larsivi [complete] 47000 49000 MikeH [complete] 49000 49200 Mat67 [complete] 49200 49900 MikeH [complete] 49900 50000 Joe_O [complete] 50000 50180 Joe_O [complete] 50180 50200 Troodon [complete] 50200 50500 Joe_O [complete] 50500 50550 jimmy [complete] 50550 50700 Troodon [complete] 50700 50850 mklasson [complete] 50850 51020 Joe_O [complete] 51020 52000 MikeH [complete] 52000 52300 mklasson [complete] 52300 52500 Troodon [complete] 52500 52750 engracio [complete] 52750 53000 engracio [complete] 53000 53300 Mat67 [complete] 53300 53350 Joe O [complete] 53350 53800 mklasson [complete] 53800 53850 jimmy [complete] 53850 54200 mklasson [complete] 54200 54450 Xeltrix [complete] 54450 54500 cedricvonck [complete] 54500 54600 priwo [complete] 54600 54800 mklasson [complete] 54800 54900 Troodon [complete] 54900 55200 Joe O [complete] 55200 55300 MikeH [complete] 55300 55350 jimmy [complete] 55350 55450 mklasson [complete] 55450 55700 engracio [complete] 55700 55950 engracio [complete] 55950 56000 BigMajaX [complete] 56000 56100 Joe O [complete] 56100 56300 priwo [complete] 56300 56400 alexr [complete] 56400 56500 chvo [complete] 56500 56600 Troodon [complete] 56600 57000 Mat67 [complete] 57000 57100 Xrillo [complete] 57100 58000 mklasson [complete] 58000 58250 engracio [complete] 58250 58500 engracio [complete] 58500 58750 engracio [complete] 58750 59000 engracio [complete] 59000 59250 engracio [complete] 59250 59500 engracio [complete] 59500 59750 engracio [complete] 59750 60000 engracio [complete] 60000 60030 MikeH [complete] 60030 60100 Joe_O [complete] 60100 62000 MikeH [complete] 62000 62100 jimmy [complete] 62100 62300 mklasson [complete] 62300 62500 Xrillo [complete] 62500 62700 Joe_O [complete] 62700 63000 mklasson [complete] 63000 63250 Slatz [complete] 63250 63320 Lupus1647 [Complete] 63320 63400 jimmy [complete] 63400 63475 Lupus1647 [Complete] 63475 63700 expinete [complete] 63700 64000 Troodon [complete] 64000 64150 alexr [complete] 64150 64400 priwo [complete] 64400 64500 Joe O [complete] 64500 64750 cmprince [complete] 64750 65050 Joe_O [complete] 65050 65250 Joe_O (Jun 24th) 65250 65500 engracio [complete] 65500 65750 engracio [complete] 65750 66000 engracio [complete] 66000 66250 engracio [complete] 66250 66500 engracio [complete] 66500 66750 engracio [complete] 66750 67000 engracio [complete] 67000 67250 engracio [complete] 67250 67550 engracio [complete] 67550 67600 BigMajaX [complete] 67600 67800 chvo [complete] 67800 67900 Joe O [complete] 67900 70030 MikeH [complete] 70030 70050 BigMajax [complete] 70050 70200 Joe O [complete] 70200 70250 jimmy [complete] 70250 70500 Xrillo [complete] 70500 70600 jimmy [complete] 70600 70700 MikeH [complete] 70700 71000 mklasson [complete] 71000 71500 Mystwalker [complete] 71500 72700 mklasson [complete] 72700 73000 Joe O [complete] 73000 73100 mklasson [complete] 73100 73500 Mat67 [complete] 73500 73800 priwo [complete] 73800 74000 Slatz [complete] 74000 74200 Lupus1647 [complete] 74200 74500 Troodon [complete] 74500 74900 mklasson [complete] 74900 75000 rosebud [complete]

Code:

The last bit P_min P_max UserName Status 81000 83000 engracio [complete] 95000 97000 engracio (Aug 21st) 99800 99900 Joe O (??) 110900 111200 Troodon [complete] 115800 115820 Troodon [complete] 115820 115950 engracio [complete] 115950 116000 cedricvonck [complete] 116000 117000 engracio [complete] 123500 123650 Troodon [complete] 123650 123800 engracio [complete] 125100 125500 engracio [complete] 126000 128000 engracio [complete] 129500 130000 engracio [complete] 133000 134000 engracio [complete] 136000 137000 engracio [complete] 139000 139800 engracio [complete] 143000 143050 cedricvonck [complete] 153000 155000 engracio [complete] 195250 195900 engracio [complete]

To keep this effective, please do the lowest available range.

For current sieve statistics, GAP analysis, and other sieving information, please look at MikeH's excellent web site.

Happy Sieving :)

ceselb,

what's next are we going to try to fill in/retest the larger holes in the upper ranges???

VJS et alii,
I think that we would further the project more by going to the regular sieve. If we have machines too slow to do the regular sieve, then perhaps we can "fill in the holes". In any case, I don't think that we should go beyond 200000. If you want, I can post those ranges that have never been claimed, below 200000.

1 Attachment(s)

Quote:

Originally posted by ceselb
I thought all the holes were listed already. Where are these ranges coming from? I don't see any at MikeH's page. (either here or here)

When either Factors found by P-1 or from the factrange.txt file are submitted, they break up the ranges into parts too small to show on those pages. As valuable as I have found Mike's pages to be, I have had to supplement them with an Excel spreadsheet to find undersubmitted ranges. Note that many of those ranges with too few unique factors are ones that I initially sieved. I have had to go back over these ranges with Proth_Sieve to find and submit the missed factors.

I tried to attach the file but it was too large, even zipped. So I've cut it in two and have attached the data for Low-N (300K-3M) only. I have a similar file for the regular sieve (1M-20M) .
The Sheet F1 I contains the count of unique factors for 1 T intervals, and computed values Weight and Square that allow for a linear interpolation so as to find undersubmitted intervals easier.
$ing2=$p/1000000000000;
$weight=$ing2*log($p)*log($p);
$square=$ing2*$weight;
The sheet F1-R contains the same data for each reserved and unassigned range.

Joe,

I'm pretty much cruising along with the >450T ranges I've selected. I was just thinking that if there are some wholes (which there appear to be) and they are small 50G and so forth we could post them on the main thread ask people with slow computers to reserve them etc. Since they should be a double check of sorts.

It would just be nice to have everything below 2^48 done done done.

Quote:

Originally posted by Joe O
If we have machines too slow to do the regular sieve

Correct me if I'm wrong, but I don't think that a machine can be too slow for the regular sieve, as ranges can be broken down arbitrarily - for reservation, it has to be at least 1G, but when one takes a range somwhere in front of the current sieving depth, it should be no problem.

50% Correct

Quote:

Correct me if I'm wrong, but I don't think that a machine can be too slow for the regular sieve, as ranges can be broken down arbitrarily - for reservation, it has to be at least 1G,

True, there is no computer that is too slow to sieve if you reserve a small enough range far ahead.

But reserving 10 or 20G that you won't finish for 4 months makes no sence. Especially if that range is passed by by other users.

But if you could finish 100G in a month that machine may be best suited for filling in possible gaps (50-150G IN SIZE) in the ranges.

Quote:

Originally posted by vjs
Joe,

I'm pretty much cruising along with the >450T ranges I've selected. I was just thinking that if there are some wholes (which there appear to be) and they are small 50G and so forth we could post them on the main thread ask people with slow computers to reserve them etc. Since they should be a double check of sorts.

It would just be nice to have everything below 2^48 done done done.

I'm still working on the analysis. As soon as I have a more automated way of singling out ranges to be redone, I will post my results.

Quote:

Originally posted by Mystwalker
Correct me if I'm wrong, but I don't think that a machine can be too slow for the regular sieve, as ranges can be broken down arbitrarily - for reservation, it has to be at least 1G, but when one takes a range somwhere in front of the current sieving depth, it should be no problem.

True enough. If that is an approach that you are comfortable with, go for it!

Quote:

I'm still working on the analysis. As soon as I have a more automated way of singling out ranges to be redone, I will post my results.

Let me know what happens Joe,

I have a Barton machine that does about 750kps,

If you have a bunch of small ranges I could make some sort of script to run them all not sure if the nextrange.txt works for multiple gaps etc.

At this point it would probably be best to run them using the 1m<n<20m dat file.

Hey Joe,

Do you think there is a lot of gaps in between the ranges? After I finished the reserved ranges I have in <3m, I will mainly continue with the <20m ranges.

I will split my herd between sieving and prime hunting.

e

engracio,

If you have any p4's it might be wise to put some into p-1.

I would but all of my machines are non-p4.

Let's try to get the sieve effort completely done to 2^49 asap.

vjs,

Too bad I am in the same situation as you. Only got a few very slow/older P2. It would be nice if we can get to 2^49 soon. :D

e

95000 97000 engracio [complete]

all done. :) :) :)

e :D

here can i reserve the range from 75000 to 75500?

Well, I was slightly undetailed at this one... :(

The right thread is here:
http://www.free-dc.org/forum/showthr...&threadid=3501

MaGnatu,

This thread is old and closed, there would be no point is sieving anything here, first b/c we were using a 300k<n<3m dat file. Double checks are already above 1m, everything up to about 500T is sieved already with a 1m<n<20m dat. So you woundn't be able to find any new factors even if you tried.

I'm locking this thread to prevent further misunderstandings.

DC sieve (300K - 3M)