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Old 2013-03-20, 11:35   #1
henryzz
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I am currently doing some ECM on a load of sequences with no driver and no 3 which are <=117 digits in size as of Sunday according to Dubslows's page. I also avoided reservations according to that page. I might add to the list or remove if a sequence gets a driver.
I have found a good number of factors so far. Some of the candidates are coming up to a gnfs ready level. I spend almost all my time in windows with the slower siever these days and it is inconvenient to spend that much time in linux. I thought I would post the composites that have passed ECM so that people can do them efficiently.
The sequences I am currently ecming:
121470,161232,241136,250920,276090,
311202,361572,380682,391656,425052,
428400,443130,591870,703830,753336,
766880,780870,837424,838584,844920,
895356,902376,902784,921756,943950

The sequences gnfs ready so far:
920400

More will follow shortly.
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Old 2013-03-20, 23:31   #2
henryzz
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I should have mention that it is 920400 iteration 1533 that I have ecmed in case an automated worker factors it.

753336_439 and 895356_990 are now fully ecmed as well.
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Old 2013-03-21, 03:03   #3
Dubslow
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Good idea.

I'll see about jumping on some of those GNFSs once I get back to school next Sunday.

(PS My page is always synchronized to the reservations post (at least within an hour).)

Last fiddled with by Dubslow on 2013-03-21 at 03:03
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Old 2013-03-21, 09:19   #4
henryzz
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443130_1120
276090_851
766880_2473
837424_574
380682_962

are all gnfs ready.
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Old 2013-03-22, 00:07   #5
henryzz
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428400_748
838584_1869
902376_1112
241136_1587
780870_894
943950_1204
391656_859
591870_477

are all gnfs ready.
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Old 2013-04-04, 16:36   #6
henryzz
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Reserved by myself or others:
121470, 391656, 425052, 703830, 753336

Ready for nfs:
241136_1587
250920_929
276090_851
311202_1295
361572_2167
380682_962
428400_748
443130_1120
591870_477
766880_2473
780870_894
837424_574
838584_1869
895356_990
902376_1112
902784_926
920400_1533
943950_1204

Factored in database stopping:
753336
844920
921756

Still ecming:
161232

Now there is a 64-bit siever for windows I will likely work through a lot of these myself although anyone can help. I would suggest posting reservations to stop duplicate effort.
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Old 2013-04-09, 19:45   #7
henryzz
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I have started on 241136
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Old 2013-04-10, 12:01   #8
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Can I ask an offline topic here? On an i7 with 4 cores/8 threads is it worthwhile to run 4 or 8 instances of ecm?

Carlos
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Old 2013-04-10, 12:19   #9
henryzz
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Quote:
Originally Posted by pinhodecarlos View Post
Can I ask an offline topic here? On an i7 with 4 cores/8 threads is it worthwhile to run 4 or 8 instances of ecm?

Carlos
It is probably worth experimenting as different systems will behave differently. I am still on a Q6600. You might find you get some gain for small curves but for larger ones memory bandwidth might become more of an issue. Needs testing.
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Old 2013-04-10, 15:21   #10
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311202_1295 is done. No ECM. Back to you.

780870 has been started. More later.
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Old 2013-04-10, 18:23   #11
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780870_894 is done. No ECM on next term/index.

Taking 837424_574 & 838584_1869.
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