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-   -   SNFS targets which need more ECM (https://www.mersenneforum.org/showthread.php?t=21243)

fivemack 2016-07-05 11:36

Andrey: why isn't the work defined by the top post on this list being queued up on yoyo@home?

Completing 7610@43M on numbers which are 300-digit SNFS difficulty and unlikely to be sieved this decade is not obviously a higher priority than getting tractable numbers ready for processing. Running the appropriate ECM on a single individual's resources is going to take a lot longer than sieving the number on nfs@home resources.

XYYXF 2016-07-05 12:07

There are few t50 tasks remaining. Meanwhile I feed yoyo@home with some heavier tasks to get ready GNFS targets (currently there are two C178's and four C181's, fitting 15e I hope). I'll take into account SNFS/GNFS difficulty to build a t55 queue for yoyo@home.

swellman 2016-07-12 17:57

[QUOTE=swellman;437344]Request that C175_133_61 be added to the list. I will be running 6000 curves @B1=11e7 on it for eventual queuing to NFS@Home (14e).[/QUOTE]

ECM completed with no factors found. I'll request it for NFS@Home sieving in 14e queue, along with a few other stragglers.

swellman 2016-07-13 21:12

Can we add the following to the table? Please note I am not reserving any of them, just noting them for preprocessing prior to queuing with NFS@Home.

C208_148_104 7k curves @11e7
C178_140_114 full t55
C194_137_54 6k curves @11e7

All have (or will shortly have) completed t50.

Fivemack's new ECM toy may change the above values, or perhaps the entire table.

swellman 2016-07-14 13:09

May I also request the following be added to the table, each for 8000 curves @B1=11e7

C212_138_53
C226_137_55
C216_131_67

Thanks.

I've got some business travel coming up, so it is my intent to concentrate on performing ECM for the foreseeable future. ECM on things like this table...

swellman 2016-07-15 13:53

Can we add the following to the table, with a target of 9000 curves each at B1=11e7?

C211_121_95
C229_123_88
C227_124_85
C201_125_82
C234_138_82

These are the last of my nominees for this thread until a lot of the backlog is chewed up. Thanks.

fivemack 2016-07-17 09:55

Reserving C254_125_111 (initially running 4992@3e8)

henryzz 2016-07-19 13:06

[QUOTE=swellman;438067]Can we add the following to the table? Please note I am not reserving any of them, just noting them for preprocessing prior to queuing with NFS@Home.

C208_148_104 7k curves @11e7
C178_140_114 full t55
C194_137_54 6k curves @11e7

All have (or will shortly have) completed t50.

Fivemack's new ECM toy may change the above values, or perhaps the entire table.[/QUOTE]

There will be quite a lot of changes. For the C208 which is a S238 according to yafu it recommends [[1, 300], [3, 800], [11, 200], [43, 2700]] which is a lot less.

swellman 2016-07-22 15:46

[QUOTE=henryzz;438416]There will be quite a lot of changes. For the C208 which is a S238 according to yafu it recommends [[1, 300], [3, 800], [11, 200], [43, 2700]] which is a lot less.[/QUOTE]

I've always felt the traditional rules of thumb required a LOT of ECM. If Baysian analysis tells us to reduce it (with props to RDS et al), I'm all for it.

swellman 2016-08-02 12:35

Reserving C178_140_114 for ECM to t55. Thank you.

XYYXF 2016-08-03 10:16

I'll probably enqueue all t55 tasks to yoyo in September.


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