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Search: Posts Made By: jcrombie
Forum: EdH 2021-05-30, 18:45
Replies: 118
Views: 36,860
Posted By jcrombie
Just compiled the branches/wip in gcc 10.3. I've...

Just compiled the branches/wip in gcc 10.3. I've attach a patch file. (To patch, "cd branches/wip ; svn patch patchfile") Cheers.
Forum: Factoring 2018-09-14, 16:13
Replies: 446
Views: 65,037
Posted By jcrombie
Thanks for your help Ricky!

Thanks for your help Ricky!
Forum: Math 2018-08-30, 17:35
Replies: 11
Views: 3,079
Posted By jcrombie
Sorry, try this link...

Sorry, try this link (http://myfactorcollection.mooo.com:8090/index.html#AlgebraicFactorsQuery).
Forum: Math 2018-08-30, 15:17
Replies: 11
Views: 3,079
Posted By jcrombie
This...

This (http://myfactors.mooo.com/#AlgebraicFactorsQuery) might be useful for playing around with.
Forum: YAFU 2018-04-27, 16:48
Replies: 18
Views: 4,840
Posted By jcrombie
That would be in top/driver.c Checking my...

That would be in top/driver.c

Checking my own code, I just commented out line 126:



Cheers.
Forum: YAFU 2018-04-27, 16:12
Replies: 18
Views: 4,840
Posted By jcrombie
If you're willing to mess with the code a bit,...

If you're willing to mess with the code a bit, this should work. (I noticed msieve is now at version 1019, but all the modified files seem to be untouched since ver 1015).
Forum: YAFU 2017-10-10, 04:56
Replies: 506
Views: 82,369
Posted By jcrombie
Ooops, guess that wasn't clear. Yafu crashed...

Ooops, guess that wasn't clear. Yafu crashed after about 20 more batch entries. Only crashes on one machine so far.
Forum: YAFU 2017-10-09, 18:04
Replies: 506
Views: 82,369
Posted By jcrombie
Ben, Found a problem and a fix. If your...

Ben,

Found a problem and a fix. If your snfs number has >2 prime factors, yafu may switch over to siqs after finding a single factor. This eventually caused stability issues on one of my...
Forum: Factoring 2017-10-09, 17:07
Replies: 446
Views: 65,037
Posted By jcrombie
Hi Chris, The only info I've got on how much...

Hi Chris,

The only info I've got on how much ecm effort has been done is here (http://maths-people.anu.edu.au/~brent/pub/pub200.html). It states "We would be surprised if many factors of less...
Forum: FactorDB 2017-09-30, 22:11
Replies: 67
Views: 13,567
Posted By jcrombie
If you follow the way it's done on paper with the...

If you follow the way it's done on paper with the Cunningham project, then you significantly reduce the amount of storage required. Just store factors of primitives and recalculate on the fly when...
Forum: YAFU 2017-09-30, 18:02
Replies: 506
Views: 82,369
Posted By jcrombie
Hi Ed, Just tried my freshly compiled wip...

Hi Ed,

Just tried my freshly compiled wip version with your number,


09/30/17 11:46:56 v1.35-beta @ Octacore, System/Build Info:
Using GMP-ECM 7.0.4, Powered by GMP 6.1.2
detected AMD...
Forum: YAFU 2017-09-28, 20:52
Replies: 506
Views: 82,369
Posted By jcrombie
Yep, using /trunk. Will definitely have to check...

Yep, using /trunk. Will definitely have to check out what goodies are in /wip.
Forum: YAFU 2017-09-28, 19:36
Replies: 506
Views: 82,369
Posted By jcrombie
So doing some more poking around. (svn 366 in...

So doing some more poking around. (svn 366 in Ubuntu bash for windows). It does crash later on with the indup variable, but here is where it first does something bad.


(gdb) start...
Forum: YAFU 2017-09-25, 17:37
Replies: 506
Views: 82,369
Posted By jcrombie
It's a buffer overflow. Buffer size is 1024...

It's a buffer overflow. Buffer size is 1024 which means 1023 is the max number of digits for your input number n.

driver.c L109

indup = (char *)malloc(GSTR_MAXSIZE*sizeof(char));

...
Forum: Factoring 2017-04-06, 16:12
Replies: 446
Views: 65,037
Posted By jcrombie
Yikes! I'll see if I can get an alternate url...

Yikes! I'll see if I can get an alternate url working. (Thanks for mentioning that Chris!)
Forum: Factoring 2016-10-24, 01:49
Replies: 446
Views: 65,037
Posted By jcrombie
Yep, just the joys of not having a static ip. ...

Yep, just the joys of not having a static ip. Should be working shortly.
Forum: CADO-NFS 2016-04-24, 02:52
Replies: 22
Views: 7,283
Posted By jcrombie
Sure, deg 5 polys have 6 coefficients. (I'm sure...

Sure, deg 5 polys have 6 coefficients. (I'm sure you'll be kicking yourself for that :smile:)
Forum: Cunningham Tables 2014-08-26, 08:07
Replies: 379
Sticky: 2- table
Views: 84,740
Posted By jcrombie
check out this...

check out this (https://eprint.iacr.org/2014/397).

(from a simple google "arjen miele gpu" and it was working 4 days ago.:smile:)
Forum: Factoring 2014-07-22, 06:05
Replies: 84
Views: 11,622
Posted By jcrombie
No new curves past the Sept 26, 2012 post. (And...

No new curves past the Sept 26, 2012 post. (And I've got a lot on my plate right now, so nothing planned for the near future.) Thanks for the update though and the work:tu:
Forum: Cunningham Tables 2014-05-25, 06:13
Replies: 379
Sticky: 2- table
Views: 84,740
Posted By jcrombie
mea culpa this time. I was just entering...

mea culpa this time. I was just entering 96^127-1, and I noticed no one had entered these new Cunningham factors. They came straight from Wagstaff's page.

How about a little patience guys? ...
Forum: Factoring 2014-05-23, 09:05
Replies: 446
Views: 65,037
Posted By jcrombie
(If I didn't say thanks for the poly for the last...

(If I didn't say thanks for the poly for the last reservation, then I'll say it now. Thanks Chris!!!)

Reserving the next one down:

95^118+1 c176
Forum: Msieve 2014-05-10, 17:58
Replies: 2,065
Views: 186,090
Posted By jcrombie
Thanks Jason for straightening out my muddled...

Thanks Jason for straightening out my muddled thinking there.:davieddy:

(FWIW, I probably heard the order of magnitude ref in regards to how much time the GPU version takes for an equivalent...
Forum: Msieve 2014-05-10, 15:32
Replies: 2,065
Views: 186,090
Posted By jcrombie
pol51 holds its own

Top 3 Candidates:

skew: 1195653.98
# norm 5.84e+22
c5: 22302000
c4: -464777566858860
c3: -99436795485673648928
c2: 578297457968152336612278175
c1: 48812371410286624110411117747644
c0:...
Forum: Msieve 2014-05-08, 02:57
Replies: 2,065
Views: 186,090
Posted By jcrombie
Thanks Chris, I've started 6 CPU cores on...

Thanks Chris,

I've started 6 CPU cores on the old pol51 binaries for something to compare with. They should be done in a couple of days.
Forum: Msieve 2014-05-06, 20:56
Replies: 2,065
Views: 186,090
Posted By jcrombie
Greetings, I've got a c161 from 96^127-1. ...

Greetings,

I've got a c161 from 96^127-1. (ecm pre-tested to t55)
...
Showing results 1 to 25 of 215

 
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