mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 1000
Search took 0.26 seconds.
Search: Posts Made By: bsquared
Forum: Factoring 2021-06-12, 02:06
Replies: 234
Views: 5,317
Posted By bsquared
If it helps at all, I am pretty close to...

If it helps at all, I am pretty close to finishing a skew optimizer for yafu as well, after learning about the possibility in this thread. yafu calls msieve internally to evaluate polynomials, and...
Forum: Factoring 2021-06-11, 13:24
Replies: 234
Views: 5,317
Posted By bsquared
I will work on line 128 (3,-9) next. At...

I will work on line 128 (3,-9) next. At difficulty 221 and 222 both should be doable by SNFS if it comes to that.
Forum: Factoring 2021-06-11, 00:57
Replies: 234
Views: 5,317
Posted By bsquared
line 103 c199 factors as: P76 =...

line 103 c199 factors as:

P76 = 4898445353203033358835060865914937725146210574984871217927446522308970298701
P123 =...
Forum: Factoring 2021-06-10, 14:54
Replies: 234
Views: 5,317
Posted By bsquared
a2 was the best poly, sieving now. Getting a...

a2 was the best poly, sieving now. Getting a little over 2 rels/q average so far with a poly very highly skewed toward rational and the 14e siever.
Forum: Factoring 2021-06-10, 13:37
Replies: 234
Views: 5,317
Posted By bsquared
(9, -10) GCD c159 factors as PRP30 =...

(9, -10) GCD c159 factors as

PRP30 = 474691209469028714385947310001
PRP30 = 343529014609848460590154775291
PRP56 = 13581444414842401684004799943789251748189207442075102209
PRP44 =...
Forum: Factoring 2021-06-10, 13:08
Replies: 234
Views: 5,317
Posted By bsquared
Line 105 is done, c158 split as p77 * p85 by...

Line 105 is done, c158 split as p77 * p85 by SNFS.

Should I continue with SNFS on line 103 or something else a higher target?
Forum: Factoring 2021-06-09, 22:58
Replies: 234
Views: 5,317
Posted By bsquared
Thanks for the new polys... if the methods to...

Thanks for the new polys... if the methods to generate a5 thru a8 apply in general then I'm interested to see the formulas.

I've started sieving line 105 already, should be done when I wake up...
Forum: Factoring 2021-06-09, 20:24
Replies: 234
Views: 5,317
Posted By bsquared
The small differences I guess are due to the...

The small differences I guess are due to the different skews that cownoise comes up with. But the algebraic poly is the same in all cases and therefore (c0 / c4) ^ (1 / 4) should also be the same,...
Forum: Factoring 2021-06-09, 18:37
Replies: 234
Views: 5,317
Posted By bsquared
Thanks! Sorry I missed that. The 4 possible...

Thanks! Sorry I missed that.

The 4 possible polys scores I see are:

a1 Murphy = 1.533000e-11
a2 Murphy = 9.510000e-12
a3 Murphy = 1.335000e-11
a4 Murphy = 1.274000e-11

So the first one...
Forum: Factoring 2021-06-09, 18:04
Replies: 234
Views: 5,317
Posted By bsquared
Sure. I was able to create this poly using your...

Sure. I was able to create this poly using your instructions in post 27.

n:...
Forum: Factoring 2021-06-09, 03:00
Replies: 234
Views: 5,317
Posted By bsquared
Remaining composites for (4,-9) and (3,-9) got...

Remaining composites for (4,-9) and (3,-9) got more work at 11M, no more factors.


06/08/21 17:59:09, Finished 5120 curves using AVX-ECM method on C198 input, B1=11M, B2=1100M
06/08/21 19:00:52,...
Forum: Factoring 2021-06-08, 21:33
Replies: 234
Views: 5,317
Posted By bsquared
Sorry! The line was blank when I looked at the...

Sorry! The line was blank when I looked at the sheet - didn't realize you had it.

The two lines have had a first round of ECM:

06/08/21 15:38:50, Finished 5120 curves using AVX-ECM method on...
Forum: Factoring 2021-06-08, 20:30
Replies: 234
Views: 5,317
Posted By bsquared
Line 127 (4,-9): found factor...

Line 127 (4,-9):

found factor 1256932771138527281215161529683362839 in stage 2 in thread 25, vec position 4, with sigma = 1241247507
ecm: 320/5120 curves on C140 @ B1=3000000, B2=100*B1
ecm:...
Forum: Factoring 2021-06-08, 19:53
Replies: 234
Views: 5,317
Posted By bsquared
The 4 composites on line 121 (9,-8) have survived...

The 4 composites on line 121 (9,-8) have survived 5120 curves at B1=3M (B2=300M)
Forum: Msieve 2021-06-08, 18:23
Replies: 23
Views: 4,389
Posted By bsquared
No, doesn't look like it. It builds ok and now...

No, doesn't look like it. It builds ok and now it doesn't complain about missing files. But it seems to get stuck somewhere when I run it... uses 0% gpu and hangs.
Forum: Factoring 2021-06-08, 17:36
Replies: 234
Views: 5,317
Posted By bsquared
found factor...

found factor 2850628818775824597811218609167856483893 in stage 2 in thread 36, vec position 5, with sigma = 3461579417
ecm: 2240/5120 curves on C162 @ B1=3000000, B2=100*B1
ecm: process took...
Forum: Msieve 2021-06-08, 16:59
Replies: 23
Views: 4,389
Posted By bsquared
Working now, thanks!

Working now, thanks!
Forum: Msieve 2021-06-08, 16:28
Replies: 23
Views: 4,389
Posted By bsquared
After adjusting the project files to point to my...

After adjusting the project files to point to my nvidia cuda toolkit location, I just built msieve with compute_75. I have an up-to-date sort_engine.dll and stage1_core_sm75.ptx file. But when...
Forum: YAFU 2021-06-08, 14:55
Replies: 137
Views: 6,361
Posted By bsquared
Ok, sounds good. Just use the -x64 version. I...

Ok, sounds good. Just use the -x64 version. I might just remove the mingw versions from git.

[extra info]
A long-running background project for yafu is to get all assembly optimizations working...
Forum: YAFU 2021-06-08, 14:38
Replies: 137
Views: 6,361
Posted By bsquared
That is a AVX512F instruction, weird. Thank you...

That is a AVX512F instruction, weird. Thank you for tracking that down.

I didn't realize you were using the mingw executable. Do you have the same problem if you use the yafu-x64 version? That...
Forum: Factoring 2021-06-08, 14:27
Replies: 234
Views: 5,317
Posted By bsquared
C160 ecm hit: found factor...

C160 ecm hit:
found factor 22031531048711156338186004493354173819943199 in stage 2 in thread 1, vec position 4, with sigma = 2115475423
ecm: 640/9600 curves on C160 @ B1=43000000, B2=100*B1
ecm:...
Forum: YAFU 2021-06-08, 14:13
Replies: 7
Views: 213
Posted By bsquared
I appreciate the ideas! I'm not super keen...

I appreciate the ideas!

I'm not super keen on handling specific return codes (after my first failed attempt) because they are subject to change and I don't want to have to keep tabs on them.
...
Forum: Factoring 2021-06-08, 13:58
Replies: 234
Views: 5,317
Posted By bsquared
I'm running ECM on the two composites in line 103...

I'm running ECM on the two composites in line 103 (8,9)
Forum: YAFU 2021-06-08, 13:49
Replies: 7
Views: 213
Posted By bsquared
Good idea, but I've tried that :smile: ...

Good idea, but I've tried that :smile:


But it's not portable... I've seen different numbers returned at different times on different systems.

Waiting for a second is a good idea also. Will...
Forum: YAFU 2021-06-08, 13:39
Replies: 137
Views: 6,361
Posted By bsquared
WSL2 would work, yes. I'm a huge fan of WSL. It...

WSL2 would work, yes. I'm a huge fan of WSL. It can be a bit of a chore getting all of the build tools and building everything but it can be done.

I use Ubuntu on WSL2. For that distro to get a...
Showing results 1 to 25 of 1000

 
All times are UTC. The time now is 11:08.

Sat Jun 12 11:08:15 UTC 2021 up 15 days, 8:55, 0 users, load averages: 1.50, 1.53, 1.54

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.