mersenneforum.org  

Go Back   mersenneforum.org > Factoring Projects > Aliquot Sequences

Reply
 
Thread Tools
Old 2011-07-21, 08:21   #1
fivemack
(loop (#_fork))
 
fivemack's Avatar
 
Feb 2006
Cambridge, England

6,323 Posts
Default someone stole my screwdriver

Is bcheffin's tool running on all sequences including ones that have been reserved for other projects?

I was a little surprised this morning to find that sequence 515028 had been taken a hundred iterations further than I'd had it ... I put my factors into the database and it was left there as a down-driver.

For me, at least part of the goal of the enormous attack on below-400 sequences was the chance to get some terminations; if my sequences are going to be run on by someone else as soon as I put them in the database, this goal goes away.
fivemack is offline   Reply With Quote
Old 2011-07-21, 09:18   #2
schickel
 
schickel's Avatar
 
"Frank <^>"
Dec 2004
CDP Janesville

2·1,049 Posts
Default

Quote:
Originally Posted by fivemack View Post
Is bcheffin's tool running on all sequences including ones that have been reserved for other projects?
Without a close read of the code (just going by a cursory glance and the README), if a sequence is not reserved in the main thread and it has a composite under the current threshhold, the composite will be factored.
Quote:
I was a little surprised this morning to find that sequence 515028 had been taken a hundred iterations further than I'd had it ... I put my factors into the database and it was left there as a down-driver.
If it was under the threshhold, it would have been factored if the size of the reamining composite was small enough.
Quote:
For me, at least part of the goal of the enormous attack on below-400 sequences was the chance to get some terminations; if my sequences are going to be run on by someone else as soon as I put them in the database, this goal goes away.
I wouldn't like losing your contribution to the project.

Maybe Ben could take the current sequences for Project 400 from his master list so they don't get worked on. This would probably be easiest, since there is not a sticky post at the top of the thread with a list of the current reservations. (And I would like to keep the project structured the way it is, since not all the sequences in this project will end up reserved in the main thread.)
schickel is offline   Reply With Quote
Old 2011-07-21, 11:14   #3
schickel
 
schickel's Avatar
 
"Frank <^>"
Dec 2004
CDP Janesville

2·1,049 Posts
Default

Quote:
Originally Posted by schickel View Post
This would probably be easiest, since there is not a sticky post at the top of the [Project 400] thread with a list of the current reservations. (And I would like to keep the project structured the way it is, since not all the sequences in this project will end up reserved in the main thread.)
Quote:
Originally Posted by fivemack View Post
reserving 63828 256950 435720 119472 754320 702696 (sequences from the <400 project without drivers)
This is another way.

Yet another way would be to not upload anything that puts a sequence at risk of having a small enough copmposite that the workers would pick it up. I'll do it whichever way makes the most sense to everyone else....
schickel is offline   Reply With Quote
Old 2011-07-21, 14:54   #4
bchaffin
 
Sep 2010
Portland, OR

7×53 Posts
Default

I checked my logs and yes, that was me -- sorry. I only track the main reservations thread because I can automatically parse the top post. I didn't try to avoid the project-400 sequences because in general they're all way over my threshold, but in this case your sequence had decreased and so the workers picked it up.

I certainly don't want to steal the fun from anyone -- sorry fivemack. I have manually removed all the remaining project-400 sequences from my list until the subproject is done. If there are any others you want me to stay away from (which are not mentioned in the main reservations thread), let me know.

The current code will factor anything from c106 down, and up to c110 if there is a downdriver. Anything above that is safe from the workers.
bchaffin is offline   Reply With Quote
Old 2011-07-22, 09:10   #5
fivemack
(loop (#_fork))
 
fivemack's Avatar
 
Feb 2006
Cambridge, England

142638 Posts
Default

Many thanks
fivemack is offline   Reply With Quote
Old 2011-08-27, 21:26   #6
fivemack
(loop (#_fork))
 
fivemack's Avatar
 
Feb 2006
Cambridge, England

6,323 Posts
Default

It's happened again on 741450 - I left it at about iteration 1140 this morning and it's now at 1236. It's reserved in the first post in the reservations thread.

Last fiddled with by fivemack on 2011-08-27 at 21:26
fivemack is offline   Reply With Quote
Old 2011-08-27, 22:51   #7
bchaffin
 
Sep 2010
Portland, OR

37110 Posts
Default

Checked my logs, not me this time.
bchaffin is offline   Reply With Quote
Old 2011-08-28, 21:09   #8
fivemack
(loop (#_fork))
 
fivemack's Avatar
 
Feb 2006
Cambridge, England

6,323 Posts
Default

I'm sorry, that read as blaming you and I didn't mean to. We know there's someone contributing to the database without reading this forum, since one of the intermediate steps in 4788 got factors submitted shortly before the forum-people had finished sieving it.

Last fiddled with by fivemack on 2011-08-28 at 21:10
fivemack is offline   Reply With Quote
Old 2011-08-29, 05:44   #9
schickel
 
schickel's Avatar
 
"Frank <^>"
Dec 2004
CDP Janesville

2×1,049 Posts
Default

Quote:
Originally Posted by fivemack View Post
I'm sorry, that read as blaming you and I didn't mean to. We know there's someone contributing to the database without reading this forum, since one of the intermediate steps in 4788 got factors submitted shortly before the forum-people had finished sieving it.
Well, I wish that someone would stop doing stuff like that.

If they want to do some factoring, there are several sequences that I would like to see get some heavy duty help.....
schickel is offline   Reply With Quote
Old 2011-08-30, 06:07   #10
unconnected
 
unconnected's Avatar
 
May 2009
Russia, Moscow

23×109 Posts
Default

Someone actively works on 933436 in the FactorDB. I need to say that the sequence has advanced far from the current state.vanced far from the current state.
unconnected is online now   Reply With Quote
Old 2011-11-19, 05:58   #11
Andi47
 
Andi47's Avatar
 
Oct 2004
Austria

7·353 Posts
Default

Seems there is some downdriver hunter stepping on my toes with both feet. 530082 is reserved by me (as of now, I will unreserve it); someone seems to have thrown in quite some computing power (at least a C2D, as he is faster than me) to advance it ~100 steps further than me.

Last fiddled with by Andi47 on 2011-11-19 at 06:00
Andi47 is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Buzzard stole my cat! jasong jasong 4 2012-06-25 17:16

All times are UTC. The time now is 23:58.

Sun Nov 29 23:58:32 UTC 2020 up 80 days, 21:09, 3 users, load averages: 1.19, 1.25, 1.30

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.