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Old 2018-03-06, 20:16   #23
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Quote:
Originally Posted by ET_ View Post
So type 2 have holes, and type 3 are reserved. Thank you Mark.
That is because the previous code did not correctly identify type 2 holes. It only identified type 3 holes, which we have been reserving.

It is possible that the code still has a bug or two. It is difficult to verify everything due to how past searchers have reserved/completed ranges.

BTW, the first row on the "reserved ranges" page has from n > to n.

Last fiddled with by rogue on 2018-03-06 at 20:17
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Old 2018-03-07, 19:11   #24
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This gap 61000 20000-30000, is tested. No PRPs.
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Old 2018-03-07, 20:19   #25
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Taking 32001-32999 50000-100000. I estimate that it will about 4 days on a single core.
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Old 2018-03-07, 22:22   #26
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This range is done:

14501-14999 40000000 70000000

This is the only find from that range:

69482703*2^14892+1 is a Factor of xGF(14888,9,8)
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Old 2018-03-08, 09:36   #27
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The "Most wanted" page has been updated.
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Old 2018-03-09, 04:43   #28
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I can take the combo range n = 22,000 - 29,999 for k = 50,000 - 100,000 for a "Factoring" check. Should take just a couple of days once my system frees up next week.
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Old 2018-03-09, 14:14   #29
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Switching from "factoring" to "gfn" is quite easy if using pfgw. I do a PRP test first on the remaining candidates then use the -gxo option on the PRPs.
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Old 2018-03-09, 16:15   #30
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I guess Gary is using his pmfs program on his cluster
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Old 2018-03-09, 17:44   #31
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Quote:
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I guess Gary is using his pmfs program on his cluster
Possibly, but it wouldn't make sense. According to the FermatSearch productivity page, it would take him 10x longer with pmfs than with gfndsieve + pfgw.
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Old 2018-03-10, 17:56   #32
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Quote:
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Possibly, but it wouldn't make sense. According to the FermatSearch productivity page, it would take him 10x longer with pmfs than with gfndsieve + pfgw.
I am planning to use pmfs, since it is a fairly small range. One of the things on my to do list is to download gfndsieve and pfgw and to see how well I can get them to scale on my system. gfndsieve is multi-threaded (thanks Mark!). Is pfgw muti-threaded?

Luigi, would it be possible to add a y/n column to the table in your downloads page to indicate if each program is multi-threaded or not?
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Old 2018-03-10, 18:26   #33
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Quote:
Originally Posted by Gary View Post
I am planning to use pmfs, since it is a fairly small range. One of the things on my to do list is to download gfndsieve and pfgw and to see how well I can get them to scale on my system. gfndsieve is multi-threaded (thanks Mark!). Is pfgw muti-threaded?

Luigi, would it be possible to add a y/n column to the table in your downloads page to indicate if each program is multi-threaded or not?
Yep.
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