Reserving 8+5_269 (14e).

[QUOTE=swellman;442693]Been working on C269_140_83 for awhile. Finally got it through filtering but now it's almost been a week just building the matrix. I think I'm out on the fringe with my system (16Gb memory) but trying to push through. I'll keep going until the end of the month - if it isn't built by then it will never happen. This effort has taken 5x longer than any previous 32-bit job I've attempted.

Can hardly wait to see the ETA if it makes it that far![/QUOTE]

The matrix is finally built but it's all a lost cause. ETA is decades in length, and progress is glacial. I don't have enough memory or horsepower.

Please release C269_140_83. I hope someone else can postprocess it!


[b]Reserving the cofactor of 150^122+122^150[/b]

[QUOTE=swellman;443023]Please release C269_140_83. I hope someone else can postprocess it!

[B]Reserving the cofactor of 150^122+122^150[/B][/QUOTE]

150^122+122^150 [B]SNFS(277.63)[/B] seems even tougher than 140^83+83^140 [B]SNFS(270.82)[/B]

[QUOTE=unconnected;443025]150^122+122^150 [B]SNFS(277.63)[/B] seems even tougher than 140^83+83^140 [B]SNFS(270.82)[/B][/QUOTE]

Indeed but I've done a SNFS 271 in the past with no problems. Not sure why 140_83 was so difficult. A 30M x 30M matrix had its problems, but I think my eyes were too big for my stomach. I can post the log file if it will help.

I'm willing to attempt 150_122. Should know quickly if I can post process it (once it has enough relations).

Reserving C212_138_53 (14e).

[QUOTE=swellman;443027]Indeed but I've done a SNFS 271 in the past with no problems. Not sure why 140_83 was so difficult. A 30M x 30M matrix had its problems, but I think my eyes were too big for my stomach. I can post the log file if it will help.

I'm willing to attempt 150_122. Should know quickly if I can post process it (once it has enough relations).[/QUOTE]

Do you think it would help to do more sieving on C269_140_83? Say another 50M relations?

[QUOTE=jyb;443031]Do you think it would help to do more sieving on C269_140_83? Say another 50M relations?[/QUOTE]

I'm not sure but usually I can read 32-bit jobs into memory and postprocess with only a few complaints from my system. This composite drank memory like a sponge and my system just couldn't run LA after the matrix was finally built. I think it's just too big for me but I'm willing to try again if more relations are added, maybe a higher TD would help (I used TD=130)?

11+5_233 (14e) factored
 

[code]
p83 factor: 89924363526609478441451550341199291672323172034030431514992942534863308314735106429
p128 factor: 82166813913486588479110582880897205365471804935373013724621832979805599282412789990531853408372393288384208484049790807103334207
[/code]

Log: [url]http://pastebin.com/4YTJAwp0[/url]

Reserving C208_148_104 (14e).

I have put a further 100MQ onto C269_140_83 and will attack it with the biggest hammers I have. Reserving.

If I'm going to queue up jobs which are slightly too difficult, it should at least be my hammers that I break on them.

C275_150_116 (23.3M matrix @ TD=136):
[CODE]Tue Sep 13 12:01:07 2016 found 126419294 hash collisions in 502133477 relations
Tue Sep 13 12:01:29 2016 added 1 free relations
Tue Sep 13 12:01:29 2016 commencing duplicate removal, pass 2
Tue Sep 13 13:35:39 2016 found 126374785 duplicates and 375758693 unique relations[/CODE]

C260_140_81 (20M matrix @ TD=130):
[CODE]Wed Jul 27 03:53:34 2016 found 118384806 hash collisions in 495023007 relations
Wed Jul 27 03:53:53 2016 added 1 free relations
Wed Jul 27 03:53:53 2016 commencing duplicate removal, pass 2
Wed Jul 27 05:20:40 2016 found 113561203 duplicates and 381461805 unique relations[/CODE]

C269_140_83 (TD=132 fails, TD=128 in progress):
[CODE]Mon Sep 19 12:18:26 2016 found 116619041 hash collisions in 452743675 relations
Mon Sep 19 12:18:49 2016 commencing duplicate removal, pass 2
Mon Sep 19 13:45:32 2016 found 121479559 duplicates and 331264116 unique relations[/CODE]

Slightly higher duplicate rate (26.8% vs 25.1 and 22.9) and lower total relations count (~450M vs ~500M). I think some additional sieving might help.