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Forum: Msieve

2013-05-08, 09:01

Replies: 6

Best way to scale polynomial selection

Views: 1,929

Posted By pastcow

I sure did :) I got distracted by another...

I sure did :) I got distracted by another project for a while but i'm now back working on it - I've built a light weight standalone python + sqlite3 job server and a client that can be started on...

Forum: Msieve

2013-05-07, 10:58

Replies: 6

Best way to scale polynomial selection

Views: 1,929

Posted By pastcow

Thanks for the replies :) they've been a great...

Thanks for the replies :) they've been a great help.

I'm now trying to scale ggnfs sieving up - I've noticed that factmsieve.py starts sieving at q=13550000 e.g. the output shows

making sieve...

Forum: Msieve

2013-04-28, 07:56

Replies: 6

Best way to scale polynomial selection

Views: 1,929

Posted By pastcow

Best way to scale polynomial selection

If I want to scale polynomial selection (over multiple cores / computers) is the best way to have each CPU check a different range of coefficients (like below):

./msieve -v -s test1 -l test1 -nf...

Forum: Factoring

2013-02-27, 00:01

Replies: 10

General Questions

Views: 2,177

Posted By pastcow

Im using 2 scripts I wrote, 1 sits on a sever...

Im using 2 scripts I wrote, 1 sits on a sever (PHP) and distributes work via an API that a client (Python) requests. I've setup the spot instances so as soon as they boot they request work. The work...

Forum: Factoring

2013-02-26, 08:38

Replies: 10

General Questions

Views: 2,177

Posted By pastcow

I've used 60 Amazon "Spot" instances (32 core...

I've used 60 Amazon "Spot" instances (32 core Xeons) - a total of 1920 cores - this bought the second stage down to 2 hours and a total cost of $40. :)

Forum: Factoring

2013-02-24, 05:47

Replies: 10

General Questions

Views: 2,177

Posted By pastcow

Thanks for all the replies, they've made things a...

Thanks for all the replies, they've made things a lot clearer :) I managed to find E ~3.06e-12 for a C159 using mseive - I converted it to a .poly file for use with gnfs. I'm now working on a script...

Forum: Factoring

2013-02-23, 11:15

Replies: 10

General Questions

Views: 2,177

Posted By pastcow

General Questions

Hi,

If any of you have some spare time it would be great if you could answer some of my beginner questions :)

I've been looking into factoring for the last few days - I'm hoping to eventually...

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