mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > Conjectures 'R Us

Reply
 
Thread Tools
Old 2009-01-05, 00:03   #133
mdettweiler
A Sunny Moo
 
mdettweiler's Avatar
 
Aug 2007
USA (GMT-5)

792 Posts
Default

Carlos, I've noticed a few results from you coming into the PRPnet server with odd results, like this:
Code:
[2009-01-04 22:44:37 GMT] 10107*6^140219+1:  User: em99010pepe@gmail.com  Program: phrot0.exe  Residue: 000000009975F7CB  DoubleCheck? No
[2009-01-04 22:44:37 GMT] 10107*6^140879+1:  User: em99010pepe@gmail.com  Program: phrot1.exe  Residue: 00000000D4E7C7C9  DoubleCheck? No
[2009-01-04 22:44:38 GMT] 10107*6^141247+1:  User: em99010pepe@gmail.com  Program: phrot2.exe  Residue: 0000000084FCD222  DoubleCheck? No
[2009-01-04 22:44:38 GMT] 10107*6^141947+1:  User: em99010pepe@gmail.com  Program: phrot3.exe  Residue: 000000000EACE168  DoubleCheck? No
Are you by chance using an old version of Phrot? I think some older versions have been known to produce bad results like this sometimes.
mdettweiler is offline   Reply With Quote
Old 2009-01-05, 03:09   #134
rogue
 
rogue's Avatar
 
"Mark"
Apr 2003
Between here and the

22·5·7·43 Posts
Default

Quote:
Originally Posted by mdettweiler View Post
Carlos, I've noticed a few results from you coming into the PRPnet server with odd results, like this:
Code:
[2009-01-04 22:44:37 GMT] 10107*6^140219+1:  User: em99010pepe@gmail.com  Program: phrot0.exe  Residue: 000000009975F7CB  DoubleCheck? No
[2009-01-04 22:44:37 GMT] 10107*6^140879+1:  User: em99010pepe@gmail.com  Program: phrot1.exe  Residue: 00000000D4E7C7C9  DoubleCheck? No
[2009-01-04 22:44:38 GMT] 10107*6^141247+1:  User: em99010pepe@gmail.com  Program: phrot2.exe  Residue: 0000000084FCD222  DoubleCheck? No
[2009-01-04 22:44:38 GMT] 10107*6^141947+1:  User: em99010pepe@gmail.com  Program: phrot3.exe  Residue: 000000000EACE168  DoubleCheck? No
Are you by chance using an old version of Phrot? I think some older versions have been known to produce bad results like this sometimes.
You definitely need version 0.62 to address this issue. If it is happening with 0.62, please let me know the CPU you are running it on.
rogue is offline   Reply With Quote
Old 2009-01-05, 12:24   #135
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

22·13·197 Posts
Default

Quote:
Originally Posted by mdettweiler View Post
Actually, the idea that both of you guys proposed has in fact been present in PRPnet ever since version 1.0.0--there's an option in prpserver.ini that lets you opt to have the server automatically mark all candidates for a given k as inactive as soon as a prime is found for it. I've had this option enabled in the G3000 PRPnet server from the start and in fact it was seen in action when Nugget found a PRP a few days ago on the server's Riesel base 3 candidates.

OUTSTANDING!! Way to go Rogue!...extremely helpful!!

Yes, this could actually now be used for base 3 if we wanted although I'd personally like to use it for some less boring bases. lmao Finding millions of small primes does nothing for me after the first few million of them.


Gary
gd_barnes is offline   Reply With Quote
Old 2009-01-05, 13:10   #136
henryzz
Just call me Henry
 
henryzz's Avatar
 
"David"
Sep 2007
Cambridge (GMT/BST)

10110011101112 Posts
Default

Quote:
Originally Posted by gd_barnes View Post
OUTSTANDING!! Way to go Rogue!...extremely helpful!!

Yes, this could actually now be used for base 3 if we wanted although I'd personally like to use it for some less boring bases. lmao Finding millions of small primes does nothing for me after the first few million of them.


Gary
we would certainly want to turn off email notification for base 3 lol
what sort of load do you think the server will cope with
if we set our cache sizes to be 10mins worth of work would it cope with taking base 3 from 1k upwards with lots of clients
henryzz is offline   Reply With Quote
Old 2009-01-05, 13:23   #137
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

1024410 Posts
Default

Quote:
Originally Posted by henryzz View Post
we would certainly want to turn off email notification for base 3 lol
what sort of load do you think the server will cope with
if we set our cache sizes to be 10mins worth of work would it cope with taking base 3 from 1k upwards with lots of clients

Please don't anyone jump the gun on doing this. We need to load the exact correct k's in first. For remaining k's that are divisible by 3, we only want to load k's where k-1 is prime (Riesel) or k+1 is prime (Sierp).

This must be thought out to avoid a mess in the server that causes extra CPU time for everyone.


Gary
gd_barnes is offline   Reply With Quote
Old 2009-01-05, 13:28   #138
em99010pepe
 
em99010pepe's Avatar
 
Sep 2004

2·5·283 Posts
Default

Quote:
Originally Posted by rogue View Post
You definitely need version 0.62 to address this issue. If it is happening with 0.62, please let me know the CPU you are running it on.
Quote:
Originally Posted by mdettweiler View Post
Carlos, I've noticed a few results from you coming into the PRPnet server with odd results, like this:
Code:
[2009-01-04 22:44:37 GMT] 10107*6^140219+1:  User: em99010pepe@gmail.com  Program: phrot0.exe  Residue: 000000009975F7CB  DoubleCheck? No
[2009-01-04 22:44:37 GMT] 10107*6^140879+1:  User: em99010pepe@gmail.com  Program: phrot1.exe  Residue: 00000000D4E7C7C9  DoubleCheck? No
[2009-01-04 22:44:38 GMT] 10107*6^141247+1:  User: em99010pepe@gmail.com  Program: phrot2.exe  Residue: 0000000084FCD222  DoubleCheck? No
[2009-01-04 22:44:38 GMT] 10107*6^141947+1:  User: em99010pepe@gmail.com  Program: phrot3.exe  Residue: 000000000EACE168  DoubleCheck? No
Are you by chance using an old version of Phrot? I think some older versions have been known to produce bad results like this sometimes.
I really don't know which version I am using. Sorry.
em99010pepe is offline   Reply With Quote
Old 2009-01-05, 15:38   #139
rogue
 
rogue's Avatar
 
"Mark"
Apr 2003
Between here and the

136048 Posts
Default

Quote:
Originally Posted by em99010pepe View Post
I really don't know which version I am using. Sorry.
Type in "phrot0" on the command line without any arguments. It will tell you which version you are using. Starting with 0.62 the version is output when the program starts up.
rogue is offline   Reply With Quote
Old 2009-01-05, 16:28   #140
mdettweiler
A Sunny Moo
 
mdettweiler's Avatar
 
Aug 2007
USA (GMT-5)

792 Posts
Default

Quote:
Originally Posted by gd_barnes View Post
Please don't anyone jump the gun on doing this. We need to load the exact correct k's in first. For remaining k's that are divisible by 3, we only want to load k's where k-1 is prime (Riesel) or k+1 is prime (Sierp).

This must be thought out to avoid a mess in the server that causes extra CPU time for everyone.


Gary
Hmm...indeed, I agree that it even though the server may well be able to handle very small candidates, if we make them too small there's going to be so many primes and whatnot that it's going to be a huge nightmare for me to sort the results out in the end. Thus, I would recommend that we don't put anything below n=10K into the server (or, for base 3, n=25K), at least until I've picked up a LOT more experience with this stuff and gotten some better scripts written up.
mdettweiler is offline   Reply With Quote
Old 2009-01-06, 19:41   #141
michaf
 
michaf's Avatar
 
Jan 2005

479 Posts
Default

Quote:
Originally Posted by gd_barnes View Post
Please don't anyone jump the gun on doing this. We need to load the exact correct k's in first. For remaining k's that are divisible by 3, we only want to load k's where k-1 is prime (Riesel) or k+1 is prime (Sierp).

This must be thought out to avoid a mess in the server that causes extra CPU time for everyone.


Gary
Totally agreed :)

First let's struggle 'by hand' to get them to 25k, sort out the mob's, and then run them in a server. (If the server can handle the load with n=25k, if not, continue by hand to 100k)
michaf is offline   Reply With Quote
Old 2009-01-06, 19:43   #142
mdettweiler
A Sunny Moo
 
mdettweiler's Avatar
 
Aug 2007
USA (GMT-5)

792 Posts
Default

Quote:
Originally Posted by michaf View Post
Totally agreed :)

First let's struggle 'by hand' to get them to 25k, sort out the mob's, and then run them in a server. (If the server can handle the load with n=25k, if not, continue by hand to 100k)
Based on what I've seen, I'd guess that the server *should* be able to handle base 3 n=25K tests okay. Though, of course, we don't know for sure until we try it...I'm thinking that as soon as Gary gets the Sierp. base 3 mini-drive II up and running, I'll try the first file from that drive on the server and see how it works.
mdettweiler is offline   Reply With Quote
Old 2009-01-08, 04:09   #143
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

22×13×197 Posts
Default

Quote:
Originally Posted by mdettweiler View Post
Based on what I've seen, I'd guess that the server *should* be able to handle base 3 n=25K tests okay. Though, of course, we don't know for sure until we try it...I'm thinking that as soon as Gary gets the Sierp. base 3 mini-drive II up and running, I'll try the first file from that drive on the server and see how it works.

I'm going to run that drive by k-value. It will reduce admin time dramatically. I haven't thought through all the particulars for manual reservations yet but it will likely be something like a file with 10-15 k's for n=25K-40K, another with 10-15 k's for n=25K-40K, etc.

Of course that is for manual reservations. Since PRPnet is able to stop processing a k when it finds a prime, then that works great! I'd still want to sort files by k-value though so somebody doesn't reserve a manual range above the server, find a prime for a k, then the server finds a lower prime for the same k. I'm tired of that mess. I'm saying this thinking we would allow manual reservations in addition to the server running some ranges.

Starting from n=25K in the server after we've appropriately analyzed MOB should work fine.


Gary

Last fiddled with by gd_barnes on 2009-01-08 at 04:10
gd_barnes is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sierp base 16 - team drive #1 gd_barnes Conjectures 'R Us 254 2014-06-10 16:00
Sierp base 63 - team drive #5 rogue Conjectures 'R Us 146 2011-04-20 05:12
Sierp base 3 - mini-drive II gd_barnes Conjectures 'R Us 46 2009-10-26 18:19
Sierp base 3 - mini-drive Ib gd_barnes Conjectures 'R Us 43 2009-03-06 08:41
Sierp base 3 - mini-drive Ia gd_barnes Conjectures 'R Us 170 2008-11-11 05:10

All times are UTC. The time now is 06:34.

Tue Dec 1 06:34:08 UTC 2020 up 82 days, 3:45, 1 user, load averages: 1.46, 1.57, 1.61

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.