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gd_barnes 2010-03-24 10:56

Recommended bases and efforts
 
1 Attachment(s)
Here are some recommended bases for testing. There are links to the applicable sieve files on the reservations web pages.

* - sieve file available
s - sieving in progress
(R=Riesel)
(S=Sierp)

Bases with 6, 7, or 8 k's remaining currently at n<200K; (approximate test time is 2 months on a modern quad):
[code]
# of suggested
base k's search reservation status date
S994 7 n=100K-200K[/code]Bases with 2 k's remaining currently at n<300K; (approximate test time is 2 months on a modern quad):
[code]
suggested
base search reservation status date
R602 n=200K-300K gd_barnes 2020/10/30
R643 n=250K-300K gd_barnes 2020/10/30
R667 n=250K-300K gd_barnes 2020/10/30
R694 n=200K-300K
R696 n=200K-300K
R803 n=200K-300K
R887 n=200K-300K
R1003 n=200K-300K
S365* n=200K-300K BOINC 2020/10/15
S447* n=250K-300K gd_barnes 2020/09/30
S774* n=200K-300K BOINC 2020/10/15[/code] Bases with relative difficulty currently < 25000**; (test time varies based on base and difficulty from 1-3 months on a modern quad):
[code]
# of suggested
base k's search reservation status date
R107 19 n=100K-150K
R887 2 n=200K-300K
S368 3 n=200K-300K[/code]** - As shown on the unproven conjectures page here:
[URL="http://www.noprimeleftbehind.net/crus/vstats_new/crus-unproven.htm"]www.noprimeleftbehind.net/crus/vstats_new/crus-unproven.htm[/URL]

You can post reservations and statuses in this thread but after they are done, they will be moved to their applicable threads.

gd_barnes 2010-03-25 02:56

1 Attachment(s)
[quote=Batalov;209434]Reserving R96 as new to n=25K.

There are only 298 k's remaining after the script run at n<=1K, the results are attached. Not too shabby. Going on to n=25K.[/quote]

I've just about finished taking all of those new bases to n=2500 to give people a starting point and to give a good idea of how big of an effort each would be. Yes, that was one of the better ones considering its conjecture size.

I don't know if it will help you now but attached is a file of the 176 k's remaining at n=2500 for R96.

I am now showing the # of k's remaining for each of the new bases in the 1st post at n=2500 with the exception of R108, R192, and S192 that I'm not quite done with yet. I'll attach them to the 1st post as I finish them.


Gary

mdettweiler 2010-03-25 03:03

[quote=gd_barnes;209436]I've just about finished taking all of those new bases to n=2500 to give people a starting point and to give a good idea of how big of an effort each would be. Yes, that was one of the better ones considering its conjecture size.

I don't know if it will help you now but attached is a file of the 176 k's remaining at n=2500 for R96.

I am now showing the # of k's remaining for each of the new bases in the 1st post at n=2500 with the exception of R108, R192, and S192 that I'm not quite done with yet. I'll attach them to the 1st post as I finish them.


Gary[/quote]
BTW, a tip for attaching files to posts such as the first post here: to attach multiple files to a single post (without having to put them all in one zip file and therefore keep re-uploading every time one little file is changed), attach the first file to the post itself; then make additional post for each respective attachment, and use the "merge posts" feature to merge them into the first post.

gd_barnes 2010-03-25 03:38

[quote=mdettweiler;209438]BTW, a tip for attaching files to posts such as the first post here: to attach multiple files to a single post (without having to put them all in one zip file and therefore keep re-uploading every time one little file is changed), attach the first file to the post itself; then make additional post for each respective attachment, and use the "merge posts" feature to merge them into the first post.[/quote]

Why? That would be more effort. It's easier to:

1. Add an additional file to the zip on my machine.
2. Edit the post to delete the previous attachment and add the new one.

mdettweiler 2010-03-25 03:52

[quote=gd_barnes;209450]Why? That would be more effort. It's easier to:

1. Add an additional file to the zip on my machine.
2. Edit the post to delete the previous attachment and add the new one.[/quote]
Well, I guess what I was thinking is if the zip file was on the largish side it would be a pain to have to upload it again each time...though I do suppose the forum's attachment size limit keeps that in check somewhat.

gd_barnes 2010-03-25 03:59

[quote=mdettweiler;209454]Well, I guess what I was thinking is if the zip file was on the largish side it would be a pain to have to upload it again each time...though I do suppose the forum's attachment size limit keeps that in check somewhat.[/quote]

In thinking it over a little more, I think it would be about equally fast either way. I was thinking you'd have to create a number of new posts each time that equalled the total # of files that you had. But that isn't true. For each new file, you only have to create and merge one more new post.

I'll keep that in mind for future reference since it would be slightly easier for the person who needs the info. to have them in separate files and it shouldn't be any more hassle to do it that way. Thanks for the tip.

mdettweiler 2010-05-05 20:45

[quote=gd_barnes;214087]OK, I'll start sieving R181 and R182 for n=50K-100K later today. Go ahead and post a regular reservation in the bases 101-250 thread. I'll show them as reserved by you in this thread.[/quote]
Great, thanks! :smile:

[quote]These bases won't keep your quad busy for very long. The natural progression of things on your effort would make S208, R214, and R221 for n=50K-100K the next ones to tackle. S208 is heavier weight so would take longer unless a prime is found quickly. Let me know if you might be interested in those.

Another thing that I'd like to see tackled is the bases <= 250 that have 2 or 3 k's remaining that are only at n=25K. There are quite a few of those. It would be nice to see if we could add them to this thread (or prove them) by knocking out a k or 2 on them. That's something I'll probably start tackling myself over the next few months if others haven't done most of them already.[/quote]To itemize those:
S72 - 2 k's remaining at 40K
S133 - 3 k's remaining at 40K
S140 - 2 k's remaining at 25K
S157 - 3 k's remaining at 25K
S187 - 2 k's remaining at 25K
S217 - 3 k's remaining at 25K
R103 - 3 k's remaining at 40K
R158 - 3 k's remaining at 25K
R191 - 2 k's remaining at 50K
R213 - 2 k's remaining at 25K
R218 - 2 k's remaining at 25K
R236 - 2 k's remaining at 25K

Heck, if my quad can burn through those 1-k-remaining bases so fast (for some reason I was initially thinking that they'd take longer--not sure why), maybe I should just go for some of those instead. Tell you what--I'll reserve R181, R182, S140, and S187 to start with, if you don't mind sieving all that. (Note that they wouldn't have to be done all at once; I imagine even one core of your i7 sieving would be enough to keep up with my quad doing PRP if you do them one at a time and send them to me as they're ready.) That should clean up all remaining unreserved bases <200 with one k remaining at 50K, and then all unreserved Sierp. bases < 250 with 2 k's remaining at 25K.

Note that in all cases, I'd be stopping at n=100K: that means 50K-100K for R181 and R182, and 25K-100K for S140 and S187.

gd_barnes 2010-05-06 02:25

[quote=mdettweiler;214101]Great, thanks! :smile:


To itemize those:
S72 - 2 k's remaining at 40K
S133 - 3 k's remaining at 40K
S140 - 2 k's remaining at 25K
S157 - 3 k's remaining at 25K
S187 - 2 k's remaining at 25K
S217 - 3 k's remaining at 25K
R103 - 3 k's remaining at 40K
R158 - 3 k's remaining at 25K
R191 - 2 k's remaining at 50K
R213 - 2 k's remaining at 25K
R218 - 2 k's remaining at 25K
R236 - 2 k's remaining at 25K

Heck, if my quad can burn through those 1-k-remaining bases so fast (for some reason I was initially thinking that they'd take longer--not sure why), maybe I should just go for some of those instead. Tell you what--I'll reserve R181, R182, S140, and S187 to start with, if you don't mind sieving all that. (Note that they wouldn't have to be done all at once; I imagine even one core of your i7 sieving would be enough to keep up with my quad doing PRP if you do them one at a time and send them to me as they're ready.) That should clean up all remaining unreserved bases <200 with one k remaining at 50K, and then all unreserved Sierp. bases < 250 with 2 k's remaining at 25K.

Note that in all cases, I'd be stopping at n=100K: that means 50K-100K for R181 and R182, and 25K-100K for S140 and S187.[/quote]

Sure thing. I'll just stick one core of the I7 on it in the next couple of hours. I'll see how long it takes to sieve one of them and let you know. If necessary, I might initially put a 2nd core on it to help you fill up your quad more quickly. But since sieving is only 5-10% of any total effort, 1 sieving core should well outpace 4 testing cores.

Thanks for the list. That might be a good list for others to work from also. Concentrating on bases <= 250 is good because all bases <= 250 with CK <= 10K have been or are currently being searched to n=25K. So it's virtually set in stone that there will be no more bases <= 250 with 1 or 2 k's remaining barring some miracle unknown super-heavy-weight base with CK > 10K that manages to prime all of its k's except 1 or 2. That seems virtually impossible.

BTW, I'll make a SWAG estimate at about 1-2 CPU weeks avg. on these for each k for n=50K-100K. So a quad could likely blow through them in 2-4 days each (for n=50K-100K on the 1k bases; add about 20% for each k for n=25K-100K). I think the 2 k's that I did for S218 for n=50K-100K took about 8 and 9 CPU days respectively. I ran them on one core each.


Gary

gd_barnes 2010-05-06 19:24

Max,

For consistency, I added all 2k & 3k bases <= 250 that are at n<=100K. If you are going to search some 2k & 3k bases that are at 25K to 100K, then we may as well have a list of all of them that are at n<=100K. All of the others were either at 40K or 50K.

I also corrected your S133 from 25K to 40K, which prompted the additions.

The one that is "most behind" where it should be vs. its neighbors with a similar # of k's remaining is the 2 k's on S72, which are at n=40K.

BTW, all of the 1k & 2k bases that you've reserved are already recommended in this thread. These types of bases are the ones that it would be nice to have pushed higher.


Gary

gd_barnes 2010-05-16 02:50

I received a sieve file from Mathew for S49 sieved to P=500G. It is now posted on the web pages.

gd_barnes 2010-05-20 23:42

[quote=Mathew Steine;215548]I would like to reserve R192 to n=25K[/quote]


Great! Completion of this and a few other reservations will complete all bases on both sides <=200 with CK<20K to n=25K. I think that will be a significant milestone. Many bases with CK=10K-20K have been a large amount of work to get to n=25K.

To all,

I've added a link to our 1st post in this thread to the posting that contains all bases <= 250 that have either 2 or 3 k's remaining at n<=50K. See it directly below all of the recommended bases. Max originated the post and we are working together to keep it updated. With all 1k bases <= 200 now nearly complete to n=100K, that will be a good place to look for work. Perhaps we'll end up with a few more 1k (or proven) bases. :-) Another place to look would be in the 1k thread to extend all of those bases 200-250 to n=100K.


Gary

mdettweiler 2010-05-21 15:34

[quote=gd_barnes;215592]Added 49*476^n-1 for n=25K-100K. The proof of R476 would give us 5 consecutive proven bases in numeric succession for the first time. R472 thru R475 are already proven.[/quote]
Hey Gary, could you possibly sieve that one for me like you did for R181, R182, S140, and S187? The high priority on this one would seem to make it a good next choice for my quad.

While I'm at it, I may as well throw R191, R213, R218, and R236 on the list (again for 25K-100K except R191 which would be 50K-100K). My quad is pretty close to finishing R187 and I'll be ready for another batch of bases soon. This isn't an enormously high priority at the moment since I was planning to do a 1-week or so stint on one of the team drives as a "break" from this little effort once I'm done with the current batch, so if you've got something else loaded up ahead of this right now, feel free to finish that before you start on this.

gd_barnes 2010-05-21 21:25

[quote=mdettweiler;215641]Hey Gary, could you possibly sieve that one for me like you did for R181, R182, S140, and S187? The high priority on this one would seem to make it a good next choice for my quad.

While I'm at it, I may as well throw R191, R213, R218, and R236 on the list (again for 25K-100K except R191 which would be 50K-100K). My quad is pretty close to finishing R187 and I'll be ready for another batch of bases soon. This isn't an enormously high priority at the moment since I was planning to do a 1-week or so stint on one of the team drives as a "break" from this little effort once I'm done with the current batch, so if you've got something else loaded up ahead of this right now, feel free to finish that before you start on this.[/quote]

OK, I can do that. One thing though: The 1k remaining bases 200-250 at n<100K (most/all at n=25K) would be higher priority than the 2k remaining bases 200-250 at n<100K. There's a lot of 1k bases on both sides and they would give you a better chance at a proof. Let me know if you'd rather switch out R213/R218/R236 for some of those. (I assume you'd still keep R476/R191.) In the mean time, I'll start on R476.

I suppose I could put the 1k remaining bases 200-250 at n<100K in the recommended thread here. If I do that, I'll need to look at all bases 200-250 (not just the 1k/2k ones) because I didn't go past base 200 when I originally made this thread other than on those 1k k=2 bases. I'll look at doing that a little later.

mdettweiler 2010-05-21 23:09

[quote=gd_barnes;215665]OK, I can do that. One thing though: The 1k remaining bases 200-250 at n<100K (most/all at n=25K) would be higher priority than the 2k remaining bases 200-250 at n<100K. There's a lot of 1k bases on both sides and they would give you a better chance at a proof. Let me know if you'd rather switch out R213/R218/R236 for some of those. (I assume you'd still keep R476/R191.) In the mean time, I'll start on R476.

I suppose I could put the 1k remaining bases 200-250 at n<100K in the recommended thread here. If I do that, I'll need to look at all bases 200-250 (not just the 1k/2k ones) because I didn't go past base 200 when I originally made this thread other than on those 1k k=2 bases. I'll look at doing that a little later.[/quote]
Okay, yeah, that sounds good. In that case, then, I'll do the following:

R476 from 25K
R191 from 50K
S208 from 50K
S230 from 25K
R214 from 50K
R221 from 50K

That should be enough to keep me busy for a little while. :smile:

gd_barnes 2010-05-22 23:10

Max,

Doin' a little resource planning here...

You caught me at exactly the right moment. I'm just now finished sieving base 22 to P=13T on 3 cores of my I7 and was going to expand that out to all 8 cores today to bring it up to around P=35T-40T in 10-12 days or so, which should be close to optimum for the n=300K-500K range. Once I start that, I don't really want to stop it so that I can easily split the ranges equally across all cores and have them complete at about the same time, so instead I'm going to use all cores to sieve all of your bases at once very quickly before continuing with base 22.

In doing this, would you possibly like to add R248 for n=25K-100K? That would put all current 1k bases <= 250 at n=100K. If not, I'll go ahead and take it. That will give me 7 bases to sieve, which will almost perfectly utilize the I7 for a couple of days.

Doing that I believe would allow me to finish yours and the base 22 sieving just in time for the NPLB rally in just under 2 weeks. Also, I'm very confident those 7 bases would be enough to keep your quad busy until after the rally. If not, I know you were talking about possibly doing a base 16 reservation in there.

One more advantage: If I send you all of the files at once, you should be able to test them all at once, especially if you use a PRPnet server, which I believe is quite adept at handling multiple bases yet knowing when to stop searching a k when a specific k/base combo finds a prime. Doing that saves you quite a bit of time. The only tricky part is sorting the results back out by base but I'm sure that'd be a snap for your automated scripts.


Gary

mdettweiler 2010-05-23 00:44

[quote=gd_barnes;215760]Max,

Doin' a little resource planning here...

You caught me at exactly the right moment. I'm just now finished sieving base 22 to P=13T on 3 cores of my I7 and was going to expand that out to all 8 cores today to bring it up to around P=35T-40T in 10-12 days or so, which should be close to optimum for the n=300K-500K range. Once I start that, I don't really want to stop it so that I can easily split the ranges equally across all cores and have them complete at about the same time, so instead I'm going to use all cores to sieve all of your bases at once very quickly before continuing with base 22.

In doing this, would you possibly like to add R248 for n=25K-100K? That would put all current 1k bases <= 250 at n=100K. If not, I'll go ahead and take it. That will give me 7 bases to sieve, which will almost perfectly utilize the I7 for a couple of days.[/quote]
Sure, why not...another 1k base on the pile shouldnt make much of a difference. :smile:

[quote]Doing that I believe would allow me to finish yours and the base 22 sieving just in time for the NPLB rally in just under 2 weeks. Also, I'm very confident those 7 bases would be enough to keep your quad busy until after the rally. If not, I know you were talking about possibly doing a base 16 reservation in there.[/quote]
Yeah, no big deal either way. As you said, I'll be doing stuff from the team drives in between, so finding filler work shouldn't be a problem.

[quote]One more advantage: If I send you all of the files at once, you should be able to test them all at once, especially if you use a PRPnet server, which I believe is quite adept at handling multiple bases yet knowing when to stop searching a k when a specific k/base combo finds a prime. Doing that saves you quite a bit of time. The only tricky part is sorting the results back out by base but I'm sure that'd be a snap for your automated scripts.[/quote]
Actually, what I was doing is using PRPnet's sortoption=A on the server, which hands out candidates by order of when they were loaded into the server*. I then load in each of the files as they come via prpadmin, which means that the server does them in that order. If I have multiple files to load in at once, they still need to be applied individually anyway, so thus they're done in the order that I load them in.

Nonetheless, correct, it's not a problem for my scripts to sort that out...in fact some of that usually happens at the beginning and end of each range, since when one range finishes it just starts right in on the next and thus they're mixed within the same daily results files. (The only time this [i]doesn't[/i] happen is when the server dries out at the end of a range and stays that way at least until the next daily copy-off.)

[SIZE=1]*Well, essentially that works out to sorting by decimal length within each particular sieve file. That's because files that are individually this small wind up being uploaded to the server so fast that the entire file has the same timestamp (counted in seconds) on it, so the decimal length of the candidates is used as a tiebreaker where applicable. At any rate, that pretty much sorts by n so since the files are sorted by n, the net effect is the same.[/SIZE]

gd_barnes 2010-05-23 05:22

I've added five sequences that have only k=2 remaining to the 1k recommended list. k=2 should always be the fastest searching k so it is favorable to search across all bases.

gd_barnes 2010-06-08 02:24

Added another recommended 1k base that has only k=2 remaining:

2*836^n+1

gd_barnes 2010-06-24 08:38

vmod,

Since you've now completed the recommended range for S55, I have removed it from the recommended bases here and moved all related S55 posts to the bases 33-100 thread. That is what I do when people complete the recommended parts of the bases here.

Nice work!


Gary

gd_barnes 2010-06-28 23:30

I have now added the remaining bases <= 250 that currently have only 2 or 3 k's remaining at n<100K to the 1st post here. We'd like to push these to n=100K to see if we can bring them down to 1 k remaining. For an easy summary of just those bases, see the link towards the bottom of the 1st post. There are plenty of unreserved bases that are at n<=50K.

This is in preparation for a large team effort where we will sieve and load remaining 1k unreserved bases <= 250 that are at n=100K into a PRPnet server.

mdettweiler 2010-06-29 01:31

Gary,

Now that I'm done with my latest crop of 1-k bases (S208 and S230 are done "unofficially" and I see you've marked them as done in the various listings; they'll be processed tomorrow and the results posted then), I'll be ready for a new batch. As you said in the "Conjectures with one k remaining" thread, all 1-k bases <=250 are now at least at n=100K, so the current focus will be on 2-k and 3-k bases; the ones I'm thinking of for my next batch are:

S157, n=25K-100K
S217, n=25K-100K
R103, n=40K-100K
R213, n=25K-100K
R218, n=50K-100K
R236, n=25K-100K

That is, all the remaining bases on the 2- and 3-k bases <100K list. Note that they don't have to be ready right away; right now I've loaded up my PRPnet server with n=20K worth of S6 work to hopefully hold me over until I get back from my upcoming vacation July 4-10. (I'd rather not do bases with only a few k's remaining while I'm away, in case I get really lucky and run out of work prematurely.) So, if you could get the above bases sieved by about July 10 (even a little later should be OK), that would be great.

Thanks,
Max :smile:

gd_barnes 2010-06-29 01:59

[quote=mdettweiler;220120]Gary,

Now that I'm done with my latest crop of 1-k bases (S208 and S230 are done "unofficially" and I see you've marked them as done in the various listings; they'll be processed tomorrow and the results posted then), I'll be ready for a new batch. As you said in the "Conjectures with one k remaining" thread, all 1-k bases <=250 are now at least at n=100K, so the current focus will be on 2-k and 3-k bases; the ones I'm thinking of for my next batch are:

S157, n=25K-100K
S217, n=25K-100K
R103, n=40K-100K
R213, n=25K-100K
R218, n=50K-100K
R236, n=25K-100K

That is, all the remaining bases on the 2- and 3-k bases <100K list. Note that they don't have to be ready right away; right now I've loaded up my PRPnet server with n=20K worth of S6 work to hopefully hold me over until I get back from my upcoming vacation July 4-10. (I'd rather not do bases with only a few k's remaining while I'm away, in case I get really lucky and run out of work prematurely.) So, if you could get the above bases sieved by about July 10 (even a little later should be OK), that would be great.

Thanks,
Max :smile:[/quote]


Very good. I'll show them all as reserved by you. I was hoping that would encourage you to do some of those. It'll be a little while as my I7 is loaded up right now but 12 days should be plenty of time.

Have a good trip. :smile:

mdettweiler 2010-06-29 02:13

[quote=gd_barnes;220121]Very good. I'll show them all as reserved by you. I was hoping that would encourage you to do some of those. It'll be a little while as my I7 is loaded up right now but 12 days should be plenty of time.

Have a good trip. :smile:[/quote]
lol, not that I particularly needed encouragement to do them next--I was planning on it anyway. :wink: But, cool, thanks--yeah, no rush on the sieving.

henryzz 2010-07-16 15:19

It would be nice to have a web page of tables showing things like the largest CK base with some number of ks remaining(for upto 10 ks?). Also things like all bases upto some number with a CK of upto some limit have been tested to at least something. Basically the things you post that you have completed every so often but everyone has to work out themselves currently. They should be reasonably easy to keep upto date as people would in theory post when one is extended.

kar_bon 2010-07-16 17:04

[QUOTE=henryzz;221618]It would be nice to have a web page of tables showing things like the largest CK base with some number of ks remaining(for upto 10 ks?). Also things like all bases upto some number with a CK of upto some limit have been tested to at least something. Basically the things you post that you have completed every so often but everyone has to work out themselves currently. They should be reasonably easy to keep upto date as people would in theory post when one is extended.[/QUOTE]

Sounds like a job done by.... tadaaaaaaa ......a script!
I try to figure out some useful things to display.

henryzz 2010-07-16 20:34

[quote=kar_bon;221646]Sounds like a job done by.... tadaaaaaaa ......a script!
I try to figure out some useful things to display.[/quote]
I forgot about you and your script writing.:smile: Yes, that would be the easiest way. I would be nice to get your scripts working automatically on the web though. Currently we are just adding more and more manual script runs.

gd_barnes 2010-07-16 21:12

[quote=henryzz;221685]I forgot about you and your script writing.:smile: Yes, that would be the easiest way. I would be nice to get your scripts working automatically on the web though. Currently we are just adding more and more manual script runs.[/quote]

Cool. You want to create some automated web pages for us? That'd be great! :smile:

Batalov 2010-07-16 22:48

I've got three words for you: P H P :razz:

kar_bon 2010-07-16 23:00

[QUOTE=Batalov;221713]I've got three words for you: P H P :razz:[/QUOTE]

What has [url=http://en.wikipedia.org/wiki/Philippine_peso]Philippine peso (ISO 4217 Code)[/url] to do with a html-page? :grin:

Batalov 2010-07-16 23:28

[quote=kar_bon;221714]What has [URL="http://en.wikipedia.org/wiki/Philippine_peso"]Philippine peso (ISO 4217 Code)[/URL] to do with a html-page? :grin:[/quote]
Whatchu takin' 'bout Willis?
Of course, I meant Parents Helping Parents!

kar_bon 2010-07-17 00:36

1 Attachment(s)
Here's the first attempt of a condensed table from the Riesel-page done with a script.

All bases (not proven) are shown with base, CK and remaining k-values (if more than 1 hold mouse over the "[...]"-area and they will be shown as tooltip).

Any suggestions? Colors for 1k, 2k? With proven bases listed?

Rename file to htm.

kar_bon 2010-07-17 20:26

1 Attachment(s)
Now with more information:

- all listed bases of the Riesel-page
- all proven bases listed
- bases with 1 or 2 or 3 k-values left or other projects with different colors
- more search ranges
- just started bases with note
- statistics at bottom of page

More to show?

gd_barnes 2011-01-17 22:34

We were getting a little low here so I have added several new recommended bases.

There are quite a few unreserved Sierp bases in the 40s that need to be pushed a little higher.

Puzzle-Peter 2011-02-12 18:00

Could one of the scripting experts do a list like "Unproven conjectures sorted by CK"? I just realised there are conjectures in the single-digit range e.g. R566 with CK=8 that are not finished yet and I am wondering what else is still floating around.

MyDogBuster 2011-02-12 19:34

[QUOTE]Could one of the scripting experts do a list like "Unproven conjectures sorted by CK"? I just realised there are conjectures in the single-digit range e.g. R566 with CK=8 that are not finished yet and I am wondering what else is still floating around. [/QUOTE]

Vassilis (vmod) is our resident expert on scripting the pages

He has a script [url]http://www.noprimeleftbehind.net/crus/vstats/crus-stats.htm[/url]
that he may be able to add to.

Puzzle-Peter 2011-02-12 19:59

[QUOTE=MyDogBuster;252283]Vassilis (vmod) is our resident expert on scripting the pages

He has a script [URL]http://www.noprimeleftbehind.net/crus/vstats/crus-stats.htm[/URL]
that he may be able to add to.[/QUOTE]

Now that is a great page, thanks for pointing it out! It even answers the next question I was going to ask - highest CK that has been tested to at least n=25K.

gd_barnes 2011-02-18 18:57

S96 with CK=353081 is the only base < 100 with a CK < 1M that has not been searched to n=25K. Therefore I have added it as a new base to the recommended list and attached a file of the 1944 k's remaining at n=2500. It's above-average weight and I expect that it will have 550-600 k's remaining at n=25K so this is an ideal one for Ian or Peter. :smile:

gd_barnes 2011-04-13 09:50

I've added R36 with 68 k's remaining for n=50K-100K. A link to an optimally sieved file (2.6T) is on the reservations page.

gd_barnes 2011-05-29 22:33

I have added several bases to the recommended lists. Many already have sieve files started.

gd_barnes 2011-06-06 06:21

The recommended list has been extended to include bases up to 256. This resulted in adding 4 new bases to the list.

One of them is an interesting one: R243. I'm not sure why but this one was stopped with 66 k's remaining at n=20K so I have recommended it for the small range of n=20K-25K. It's the only [already started and released] base that I am aware of that has < 1000 k's remaining and has not been searched to n=25K.

There is no plan at this point to extend the list past base 256 in the future although I/we may suggest general efforts for higher bases such as searching all 3 and 4 kers up to n=100K...stuff of that nature.

One note for everyone: Mathew has been very diligent behind-the-scenes about providing me with sieve files for many bases so that I can provide a link to them on the reservations pages; including almost all of the recommended bases. We have him to thank for a majority of the sieve files that are available on the reservations pages now. Thanks Mathew! :-)

gd_barnes 2011-09-30 18:49

Added S166 for n=10K-25K with 225 k's remaining.

Puzzle-Peter 2011-10-17 17:43

The first post seems to suggest that all recommended efforts are reserved?

gd_barnes 2011-10-17 18:36

[QUOTE=Puzzle-Peter;274900]The first post seems to suggest that all recommended efforts are reserved?[/QUOTE]

They are. We keep it updated regularly. At this point in time, we are only recommending bases <= 256 and virtually all of those are now in good shape.

One goal that I'm considering setting for the project is to complete all bases <= 256 with CK < 100K to n=25K. I think there are 6-7 of them remaining and I have searched them all to n=2500 but don't really want to go further. I may add those new bases to n=25K in the next few weeks.

rogue 2011-10-17 19:23

[QUOTE=Puzzle-Peter;274900]The first post seems to suggest that all recommended efforts are reserved?[/QUOTE]

What??? Isn't S63 keeping you occupied? :smile:

Puzzle-Peter 2011-10-18 16:35

[QUOTE=rogue;274910]What??? Isn't S63 keeping you occupied? :smile:[/QUOTE]
Occupied, yes. Entertained, weeeeellllllllllllll..... but there's light at the end of the tunnel :smile:

gd_barnes 2011-10-19 07:37

I'd like to make an "unofficial" recommendation: Both sides of base 150 to n=25K. Completing these would put all bases < 190 with CK < 100K at n=25K. These bases shouldn't be too bad for some of our regular heavy hitters. Both have a CK=49074 and I expect them to have 200-250 k's remaining at n=25K. I have already tested them to n=2500. At that depth, R150 has 427 k's remaining and S150 has 401 k's remaining.

If anyone is interested in them, I can post the list of k's remaining at n=2500.


After R150/S150, the only base < 200 with CK < 100K that would need to be tested to n=25K is R193. But it is kind of a bad one. With CK=80802, it has 844 k's remaining at n=2500.

In a couple of weeks, I'll "officially" add to the recommended list bases < 256 with CK < 100K that have not yet been done to n=25K. There are something like 6-8 of them and I have done them all to n=2500. As for difficulty, most of them are somewhere in between R150/S150 and R193.


Gary

gd_barnes 2011-11-01 06:21

10 new bases have been added to the recommended list. There is an attachment with each of their k's remaining at n=2500. R150 & S150 would be the highest priority. Completion of them would complete all bases <= 190 with conjectures k<100K to n=25K.

Edit: Completion of all 10 bases would complete all bases <= 256 with conjectures k<100K to n=25K.

gd_barnes 2012-01-23 07:06

Mathew has been kind enough to provide us with some more sieve files for the various bases recommended to n=25K. They are on the reservations pages and are shown with an asterisk in the first post of this thread.

gd_barnes 2012-01-30 05:14

Mathew has provided sieve files for both sides of base 223. All recommended new bases now have links to sieve files on the reservations pages.

gd_barnes 2012-02-03 09:05

I have a recommendation of all 1k bases <= 256 up to n=200K.

gd_barnes 2012-05-31 06:46

1 Attachment(s)
I received an interesting analysis from Ian. In it, he suggested testing all bases with 3 or 4 trivial factors that have a CK < 1M. These bases should have fewer k's remaining then most bases of similar size and CK. The analysis is attached. I have added the bases to the 1st post of this thread with a link to this post.


Gary

gd_barnes 2012-08-05 01:48

Several of the new recommended bases in the 1st post here have been tested to n=2500 and sieve files have been provided for n=2.5K-25K.

gd_barnes 2012-09-09 09:42

I have added R106 as recommended to n=25K. It has already been tested to n=10K with k<=100K already tested further to n=25K. There is a fully sieved file on the reservations page with the 1578 k's remaining for the range of k>100K and n=10K-25K.

gd_barnes 2012-10-10 22:51

I have added R451 and S451 for n=10K-25K to the recommended list. Ian recently completed them to n=10K. There aren't too many k's remaining.

gd_barnes 2012-10-12 17:46

I have added S79 for n=2.5K-25K. For completeness, I also added R51 for n=10K-25K, which is currently being worked on by Lennart.

Completion of these would put all bases <= 100 with CK < 20M at n=25K! :smile:

gd_barnes 2012-10-14 06:05

As a general rule, bases of the form 2^q-1 are more prime than usual and have a very high conjecture so I thought it might be interesting to pick out the lowest conjectured such base, test it to n=2500, and recommend it. Therefore I have added R1023 with CK=68394 and 724 k's remaining at n=2500 to the recommended list. As usual the k's remaining are in the file attached to the first post.

gd_barnes 2012-10-22 06:40

I have added new bases R145 and R171 tested to n=2500 and recommended to n=25K to the list. Completion of these would put all bases < 190 with a CK < 1M at n=25K. They are not nearly as difficult as many of the bases already recommended. R171 has the fewest k's remaining on the new base list and R145 has a smaller conjecture than S145, which has already been tested to n=25K.

As usual, the k's remaining at n=2500 are attached to the first post.

I also removed S241 from the list. With 4000+ k's remaining at n=2500, it's way too difficult and doesn't accomplish any range completion. It still has a sieve file on the reservations page.

firejuggler 2012-11-23 20:02

hi! I have one Idle core. do you think S316 will take less than one week? or should I try R383?

gd_barnes 2012-11-23 21:50

[QUOTE=firejuggler;319445]hi! I have one Idle core. do you think S316 will take less than one week? or should I try R383?[/QUOTE]

No. S316 would take several CPU months. R383 has 9 k's remaining at n=25K. It would take several CPU weeks to test it to n=50K.

Let me give an example: I have been working on testing many bases with 5 k's remaining from n=25K to 50K. Running 40+ cores, it takes ~7-8 hours for each base...not including sieving. That means ~300 CPU hours for each base or just a little under 2 CPU weeks. Some of my CPU's are a little slow. Including sieving and testing on R383 with almost twice as many k's on a very modern machine is still likely to take you ~3 weeks assuming that you find the expected number of primes...about 2.

gd_barnes 2012-11-24 03:00

[QUOTE=gd_barnes;319450]No. S316 would take several CPU months. R383 has 9 k's remaining at n=25K. It would take several CPU weeks to test it to n=50K.[/QUOTE]

I stand corrected. I see that R383 is the lowest difficulty Riesel base and so its k's are likely half the average weight of the average base. You could likely do it in 1-1/2 to 2 weeks on one core. Don't quote me on that. That's a rough extrapolation based on my experience with average-weight bases with 5 k's remaining.

gd_barnes 2013-01-26 00:29

I've added S283 to the list for n=10K-25K. It is the only unreserved base at n>=10K that has not been searched to n>=25K.

firejuggler 2013-01-26 00:43

if nobody take it before I end my current reservation (S488, @ 93000=>100000, 2 k removed for now, a third is unlikely, 7 k left) i'll take it

gd_barnes 2013-01-26 08:00

[QUOTE=firejuggler;325864]if nobody take it before I end my current reservation (S488, @ 93000=>100000, 2 k removed for now, a third is unlikely, 7 k left) i'll take it[/QUOTE]

I'll mark it down for you.

gd_barnes 2013-04-13 02:51

C10ck3r searched R331 to n=20K and released so I have left it recommended for n=20K-25K.

gd_barnes 2013-06-24 07:08

I have added 8 new recommended bases in the 1st post with conjected k's of 10000-20000 tested to n=2500 and sieved for n=2500-25K by Ian. Links to k's remaining are in the 1st post and links to sieve files are on the reservations pages.

gd_barnes 2013-07-09 04:35

Added S642 recommended for n=10K-25K searched to n=10K by firejuggler.

gd_barnes 2013-12-28 18:43

I have added three 1k bases to the list to bring all of them to n=200K.

gd_barnes 2014-03-05 04:00

I have added some 1kers to the recommended list. Most of them have sieve files already started but probably need more sieving. I am currently in the process of sieving R26 for n=500K-1M to an optimum depth.

Completion of these will put all 1k bases <= 30 at n>=1M and all 1k bases <= 70 at n>=500K.

gd_barnes 2014-04-15 06:00

Added S1009 as a 1ker for testing n=100K-200K.

gd_barnes 2014-06-24 07:10

Mathew has added R97 that has been searched to an odd depth.

firejuggler 2014-06-24 20:06

currently sieving R97 from n=37k to n=100k, i'm at p=413e9,will go to 420.
Should be enough, right?( I 'll provide the file when I'm done)

firejuggler 2014-06-24 21:37

1 Attachment(s)
Here is the file(n=37K to 100K) .
164 sequences, 227208 test in all, sieved to 420e9.

gd_barnes 2014-07-05 05:46

I previously added S1030 for n=10K-25K. I just now added S1012 for n=10K-25K.

gd_barnes 2014-07-17 05:20

I've added a couple of sieve efforts to the recommended list. R2/4 is the team sieving drive. The file can be found there. S6 is one that I'm working on and is complete to P=30T. P=30T-36T is in process and will be done in a few days. I have the file if anyone is interested.

Both will be turned into the continuation of team testing efforts when sieving is done.

gd_barnes 2014-09-11 01:44

Added S225 with 221 k's remaining for n=10K-25K.

gd_barnes 2014-10-23 04:26

I've added several bases testing for n=10K-25K.

wombatman 2015-01-13 20:59

I'll run sieving on S6 with k=13215 with n between 1M and 2M. To be clear, the 200T = 200e9, right?

MyDogBuster 2015-01-13 21:21

[QUOTE]eving on S6 with k=13215 with n between 1M and 2M. To be clear, the 200T = 200e9, right? [/QUOTE]200T is 200e12 - 200e9 is 200B

wombatman 2015-01-13 21:24

Thanks.

gd_barnes 2015-01-14 16:51

[QUOTE=wombatman;392350]I'll run sieving on S6 with k=13215 with n between 1M and 2M. To be clear, the 200T = 200e9, right?[/QUOTE]

Sieving one k would not help us. You would need to sieve the entire file.

wombatman 2015-01-14 17:03

When I downloaded the sieve file, I realized that all the bases were mixed in, so I'm just sieving all of them. Sorry about that.

Batalov 2015-01-14 17:45

[QUOTE=wombatman;392422]When I downloaded the sieve file, I realized that all the bases were mixed in...[/QUOTE]
Really?
Bases or [I]k[/I] values?

wombatman 2015-01-14 17:53

:surrender::surrender::surrender::surrender:

Yes, the k values. I think I need more caffeine. :davieddy:

gd_barnes 2015-02-27 06:45

I have added to the recommended lists the following:

1. All bases that are currently at n=10K with < 300 k's remaining.
2. The two lowest "relative difficulty" bases for n=100K-200K as shown on our unproven conjectures list. These both have 3 k's remaining and have fully sieved files.

One more suggestion not on the list: Some new Sierp bases with conjectures k<100K to n=10K. The Sierp bases are well behind the Riesel bases as to how many bases have been started. See the two untested bases threads for the big difference between the number of untested bases with conjectures k<100K.

I am continuing with the sieve of our Sierp base 6 file for P=220T-250T. ETA is about 3 weeks.

gd_barnes 2015-03-28 08:04

I am in the process of concurrently testing (on a single older 2.6 Ghz quad-core) all untested conjectures with CK<40000 to n=2500; 22 bases total; 3 Riesel and 19 Sierp bases. It should be done in 4-6 days. The two bases with the fewest number of k's remaining are complete. I have recommended them and the k's remaining are attached to the first post. With < 140 k's remaining at n=2500 S820 and S931 should not take too many resources to test to n=25K. As I finish the bases I will continue to add them as recommended with their k's remaining added to the attached folder.

I have a single reason for doing this at this point: The Riesel new bases have been tested quite a bit more than the Sierp bases, which has been an ongoing theme on the project almost from the time that it started.

Note that I am not removing these from the "untested Riesel and Sierp bases" threads until they are actually reserved for further testing.

gd_barnes 2015-04-06 04:54

Moved the discussion about future bases for BOINC testing and sieving to the BOINC effort thread [URL="http://www.mersenneforum.org/showthread.php?t=19864"]here[/URL].

lalera 2015-07-07 11:20

R465
 
i have a question
please can somebody tell me what the full range of k´s
for R465 is?
k=1 to ?

Puzzle-Peter 2015-07-07 13:13

[QUOTE=lalera;405466]i have a question
please can somebody tell me what the full range of k´s
for R465 is?
k=1 to ?[/QUOTE]

k=2 to 706689

lalera 2015-07-07 14:00

[QUOTE=Puzzle-Peter;405472]k=2 to 706689[/QUOTE]
thank you !

gd_barnes 2015-07-07 15:48

See the full list of conjectures at:
[URL]http://www.noprimeleftbehind.net/crus/tab/CRUS_tab.htm[/URL]

gd_barnes 2015-10-05 21:21

I have added R255 as new to n=10K, R469 for n=100K-200K, and R498 for n=18K-25K to the recommended lists. R255 has its k's remaining at n=2500 attached to the first post. The other two bases have sieve file links on the reservation page.

gd_barnes 2016-01-11 01:34

I added a few 1k bases with suggested search of n=200K-400K.

gd_barnes 2016-01-25 19:32

Recommended: Any 2k or 3k base that is currently only searched to n=100K. (Recommended to n=200K.) There are a lot of bases out there waiting to be reduced to only 1k or 2k remaining that only require a moderate effort. :smile:

gd_barnes 2016-02-04 06:30

Ian has sent me the k's remaining at n=2500 for the final 6 bases with conjectured k < 50000. I have added them to the first post here.

gd_barnes 2016-02-11 22:45

I'm informally recommending to BOINC searching of the following bases to n=100K. They have all been searched to n=50K and have < 50 k's remaining:

R351; 25 k's remaining
R477; 39 k's remaining
R393; 44 k's remaining
R168; 47 k's remaining
S147; 48 k's remaining

All except R351 have sieve files for n=50K-100K. :smile:

Finishing these would complete all bases with < 50 k's remaining to n=100K; a significant milestone for the project.

MyDogBuster 2016-02-12 01:52

[QUOTE]All except R351 have sieve files for n=50K-100K. :smile:[/QUOTE]R351 is on my list to sieve in about a week.

I'll have the majority of the 25K-100K sieves done in about 5 weeks.

gd_barnes 2016-03-08 04:30

I have released R675 and S576 due to lack of updates and response.


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