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-   -   Subproject #11: 2^2 * 3 - Lose the '3' (https://www.mersenneforum.org/showthread.php?t=16075)

schickel 2011-10-07 11:51

[QUOTE=henryzz;273676]There is a subproject for this. I think this subproject is probably better as you often gain 2^2 * 3 when losing 2^3 * 3.[/QUOTE]I did try several driver escape projects, but I basically abandoned them because it's not as easy as it seems it would be to escape a driver (especially the 2^3 * 3 duo....)

Andi_HB 2011-10-09 11:02

Reserving 489762

RobertS 2011-10-14 18:13

Releasing:
787920: size 125, 2^5 *3

Taking:
440592

Batalov 2011-10-15 04:47

981510: i1169 -> 1177; mission accomplished.
And now, reserving for the main thread.

gd_barnes 2011-10-15 05:19

The first post here is kind of misleading. Many sequences listed either no longer have a 3, have a greater power of 2 or 3, or have a significant driver of some kind. Would it make sense to delete some or all of them now or move them to the main reservations thread? Below is a list. Many have advanced hundreds of iterations without a shown reservation.

Driver (1/4 shown reserved):
992096 2^4*3*31
320184 2^2*7
652884 2^2*3*7
960096 2^2*3^2*7

No 3 (4/8 shown reserved):
356382 2^6
529632 2^2
966444 2^3*5^2*7
440592 2^3
609300 2^2
981510 2^2
183936 2^4*5*7
611156 2^2

Greater power of 2 and/or 3 (3/16 shown reserved)
347664 2^2*3^2
665400 2^3*3
838602 2^2*3^2
378756 2^3*3
720762 2^5*3^3
802344 2^2*3^2
921336 2^2*3^3
969948 2^3*3*5
397728 2^3*3
573600 2^2*3^2
578550 2^3*3^2
623580 2^2*3^2
654888 2^2*3^2
217824 2^3*3
474580 2^2*3^2
266136 2^2*3^3

schickel 2011-10-15 08:08

[QUOTE=gd_barnes;274565]The first post here is kind of misleading. Many sequences listed either no longer have a 3, have a greater power of 2 or 3, or have a significant driver of some kind. Would it make sense to delete some or all of them now or move them to the main reservations thread? Below is a list. Many have advanced hundreds of iterations without a shown reservation.[/QUOTE]There are two issues here. One is that there are two groups of workers that can advance a sequence without a reservation in place. bchaffin has a dedicated group of workers that work solely on factoring composites for aliquot sequences (they're up to 106 digits right now) and yoyo has a group of BOINC workers that do any open composite. Both of them can advnace a sequence if the blocking composite is small enough, but bchaffin's workers will avoid sequences that are reserved in the main thread.

The other issue is that I hadn't pulled a current status on the sequences for this project recently enough. I try and pull a status weekly becuase of the workers that may advance a sequence while no one is looking.....

EdH 2011-10-16 02:05

Releasing [URL="http://www.factordb.com/sequences.php?se=1&eff=2&aq=665400&action=last20&fr=0&to=100"]665400[/URL], size 130, i2241, 2[SUP]3[/SUP] * 3 * 7 * c128

The 3 wouldn't let go...

I'll play with 981510 for a little while and see if someone notices. It has been working upward in the db, but maybe that was bchaffin...

Andi_HB 2011-10-16 04:40

489762 has lost the 3 at index 1907 - i do a little bit more work on it.

Andi47 2011-10-16 07:40

unreserving 347664 at i1988, sz. 117, [COLOR="Red"]2²*7[/COLOR]*19*59*67*1549*[not much ecm'd c108]

reserving 439740

Batalov 2011-10-16 08:37

[QUOTE=EdH;274690]Releasing [URL="http://www.factordb.com/sequences.php?se=1&eff=2&aq=665400&action=last20&fr=0&to=100"]665400[/URL], size 130, i2241, 2[SUP]3[/SUP] * 3 * 7 * c128

The 3 wouldn't let go...

I'll play with 981510 for a little while and see if someone notices. It has been working upward in the db, but maybe that was bchaffin...[/QUOTE]
You couldn't scan even this thread (let alone search forum)? Try Ctrl-F...

...and leave this sequence alone. :-)

EdH 2011-10-17 01:33

[QUOTE=Batalov;274726]You couldn't scan even this thread (let alone search forum)? Try Ctrl-F...

...and leave this sequence alone. :-)[/QUOTE]
Hmm... I did scan this thread and the main reservations. I'll leave it alone...


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