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Forum: YAFU 2020-05-27, 18:48
Replies: 35
Views: 4,442
Posted By bsquared
I've been spending a little time with the TLP...

I've been spending a little time with the TLP variation again... integrating jasonp's batch factoring code and investigating parameters. The batch factoring code provides a huge speedup for TLP,...
Forum: YAFU 2020-05-22, 16:24
Replies: 35
Views: 4,442
Posted By bsquared
You'll probably have to get the latest wip-branch...

You'll probably have to get the latest wip-branch SVN, so put it somewhere that it won't bother existing installs. I have had some success getting it to work, but chances are it won't work well...
Forum: YAFU 2020-05-21, 18:29
Replies: 35
Views: 4,442
Posted By bsquared
Aliquot sequences entirely within yafu :max: ...

Aliquot sequences entirely within yafu :max:

./yafu "for(input=840; input>1; print(input); forfactors(sum=1, factor(input); t=1;, for(i=1; lte(i,_fpow); i=i+1; t=t+_f^i;), sum=sum*t;),...
Forum: YAFU 2020-05-21, 18:26
Replies: 35
Views: 4,442
Posted By bsquared
You must not have seen this from 2 years ago (I...

You must not have seen this from 2 years ago (I was kinda wondering why I never got a comment from you at the time): https://mersenneforum.org/showthread.php?t=23362

It is hugely inefficient and...
Forum: YAFU 2020-05-07, 13:52
Replies: 35
Views: 4,442
Posted By bsquared
I found this thesis comparing Kleinjung's...

I found this thesis comparing Kleinjung's algorithm with traditional SIQS:
https://prism.ucalgary.ca/bitstream/handle/1880/111529/ucalgary_2020_luo_qinglong.pdf?sequence=2&isAllowed=y

The...
Forum: Puzzles 2020-04-28, 17:08
Replies: 2
Views: 1,157
Posted By bsquared
I was not familiar with the notation used to...

I was not familiar with the notation used to describe the rules... for others who may be in the same state, this helped me: https://www.conwaylife.com/wiki/Rule_integer
Forum: Lounge 2020-04-27, 14:35
Replies: 83
Views: 4,658
Posted By bsquared
More info on that picture and more high-voltage...

More info on that picture and more high-voltage goodness.

http://teslamania.delete.org/frames/longarc.htm#Pos-Lightning1
Forum: Lounge 2020-04-22, 13:44
Replies: 42
Views: 819
Posted By bsquared
As seen on social media recently... 100% truth.

As seen on social media recently... 100% truth.
Forum: Lounge 2020-04-21, 19:46
Replies: 42
Views: 819
Posted By bsquared
Why not?

Why not?
Forum: Msieve 2020-04-15, 17:25
Replies: 11
Views: 702
Posted By bsquared
yafu also fails for this input as it requires...

yafu also fails for this input as it requires that all intermediate calculations are also integers. This is an assumption I think a lot of basic integer calculators make. Even it could deal with...
Forum: EdH 2020-04-06, 16:54
Replies: 14
Views: 1,467
Posted By bsquared
Can I ask what input number you used for this...

Can I ask what input number you used for this experiment? I'd like to see what yafu does by default with it. It has some machinery for deciding between gnfs and snfs and this experience may help...
Forum: YAFU 2020-03-31, 19:42
Replies: 35
Views: 4,442
Posted By bsquared
I don't think anyone approaches 130 digit...

I don't think anyone approaches 130 digit problems with any kind of toy implementation. Even so, maybe optimization beyond what they have is possible. In my experience that usually means hand-tuned...
Forum: EdH 2020-03-26, 19:00
Replies: 84
Views: 7,821
Posted By bsquared
Yep, I can let him (jasonp) know. Thank you...

Yep, I can let him (jasonp) know.

Thank you very much for your reports and testing! This is how these projects get better.

:smile:
Forum: EdH 2020-03-26, 17:56
Replies: 84
Views: 7,821
Posted By bsquared
I've traced this back into the msieve library. ...

I've traced this back into the msieve library. Seems msieve has the same problem yafu did w.r.t gmp-6.2.0. I don't have developer privileges for the msieve repository but making this change locally...
Forum: EdH 2020-03-26, 16:43
Replies: 84
Views: 7,821
Posted By bsquared
Sorry - sometimes svn is frustrating. I removed...

Sorry - sometimes svn is frustrating. I removed the SVN-inserted conflict marker junk... Try it now.
Forum: EdH 2020-03-26, 16:00
Replies: 84
Views: 7,821
Posted By bsquared
gmp-6.2.0 has a new lazy allocation strategy that...

gmp-6.2.0 has a new lazy allocation strategy that makes it even more dangerous to access mpz_t internals directly (like _mp_d). I was bad and had some code accessing internals... that's what was...
Forum: EdH 2020-03-24, 20:33
Replies: 84
Views: 7,821
Posted By bsquared
Thank you, this is extremely helpful! It seems...

Thank you, this is extremely helpful! It seems to isolate the problem to when trial division succeeds.
Forum: EdH 2020-03-24, 20:11
Replies: 84
Views: 7,821
Posted By bsquared
All inputs get converted into mpz_t's (GMP's...

All inputs get converted into mpz_t's (GMP's signed-integer data type). And it has no way of knowing the input is a '2' except by running trial division (on the mpt_z) or is_probab_prime_p() (on the...
Forum: EdH 2020-03-24, 19:48
Replies: 84
Views: 7,821
Posted By bsquared
Thank you very much. Looks like something is...

Thank you very much. Looks like something is incompatible with gmp 6.2.0. I would imagine whatever this is, is there no matter the yafu version. So until I figure out what changed, going back to...
Forum: EdH 2020-03-24, 16:05
Replies: 84
Views: 7,821
Posted By bsquared
Oh, sorry. Didn't refresh the page before...

Oh, sorry. Didn't refresh the page before responding. I will take a look.
Forum: EdH 2020-03-24, 15:34
Replies: 84
Views: 7,821
Posted By bsquared
Good! Glad that worked out. Even more incentive...

Good! Glad that worked out. Even more incentive (as if I needed it) for me to get the wip branch merged back into trunk. Based on this and possibly EdH's trials it appears that trunk might no...
Forum: EdH 2020-03-23, 17:35
Replies: 84
Views: 7,821
Posted By bsquared
Ok, thanks. If you are willing, you could try...

Ok, thanks. If you are willing, you could try (independently) older versions of ecm and gmp.
That might help pinpoint where the incompatibility occurred.
Forum: EdH 2020-03-23, 15:58
Replies: 84
Views: 7,821
Posted By bsquared
I don't know why it is failing this way, but I'm...

I don't know why it is failing this way, but I'm using a different version of gcc and much older versions of ECM and GMP.

It may be more productive to move forward in yafu releases rather than...
Forum: EdH 2020-03-23, 13:45
Replies: 84
Views: 7,821
Posted By bsquared
Hmm, I am not having any problems with this one. ...

Hmm, I am not having any problems with this one.

Can you re-run with -v -v on the command line?

Also can you post your gcc version (gcc -v)?
Forum: Alberico Lepore 2020-02-27, 16:52
Replies: 20
Views: 1,686
Posted By bsquared
For the n-th time: no one will care that you...

For the n-th time: no one will care that you typed some letters and numbers unless you demonstrate something on a number *at least* 10 orders of magnitude larger. I encourage you to work on the test...
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