Aliqueit.exe discussion

[mklasson]

Thanks! Glad you like it.

[Andi47]

Is it possible to add an option to tune P+/-1 to the logfile in the next version of aliqueit? I personally would run P+/-1 to a bit higher limits, especially to a higher B2. (I assume that it uses the default B2?)

[mklasson]

Originally Posted by Andi47

Is it possible to add an option to tune P+/-1 to the logfile in the next version of aliqueit?

I'm not sure what you mean here. Tune to the logfile?

Originally Posted by Andi47

I personally would run P+/-1 to a bit higher limits, especially to a higher B2. (I assume that it uses the default B2?)

Yeah, default B2 is used.

edit: oh... you probably mean inifile and not logfile, right?

[mklasson]

Well, I could easily add a B2scale parameter to aliqueit.ini that's just passed along to gmp-ecm. I should probably have three different B2scale parameters, one for p-1, p+1, and ecm respectively.

Sounds good?

[Andi47]

Originally Posted by mklasson

Well, I could easily add a B2scale parameter to aliqueit.ini that's just passed along to gmp-ecm. I should probably have three different B2scale parameters, one for p-1, p+1, and ecm respectively.

Sounds good?

Yes, and additionally B1 options for P+/-1.

Edit: And please add the B2 to the output when it says "running x curves at B1=y" or "running P+/-1 at B1=y".

[mklasson]

Originally Posted by Andi47

Edit: And please add the B2 to the output when it says "running x curves at B1=y" or "running P+/-1 at B1=y".

I don't know what the B2 value will be, so that's a bit tricky. You can find it in the ecm tempfile if you're quick.

For the other stuff though, here's aliqueit v1.07.

+ can resume from elf files with a partial last line.

+ added a simple Makefile for linux (g++).

+ <b1scale_*> and <b2scale_*> settings can be used to tune p-1/p+1/ecm work. B1 is multiplied by b1scale_*, and b2scale_* is passed to gmp-ecm using the -B2scale arg. Note that b2scale=2 doesn't result in a B2 value twice as big as with b2scale=1.

* flushes stdout output for status messages. No difference on windows, but linux seems to need it.

* redirects msieve's stderr output when hiding.

[Andi47]

According to the .ini file, a cheerful message will be printed if a big ecm- or p+/-1 factor is found.

How would such a message look like? Would this also be printed into the logfile?

[10metreh]

Originally Posted by Andi47

According to the .ini file, a cheerful message will be printed if a big ecm- or p+/-1 factor is found.

How would such a message look like? Would this also be printed into the logfile?

Lower the neat factor limit to something like 20 digits and you'll find out

[Andi47]

Originally Posted by 10metreh

Lower the neat factor limit to something like 20 digits and you'll find out

Ok, found out: It would say "*** Neat 23-digit factor found: 65940312173747112366521"

[Andi47]

Is there an option / switch to resume a GNFS-factorization when it was interrupted?

[10metreh]

Originally Posted by Andi47

Is there an option / switch to resume a GNFS-factorization when it was interrupted?

I presume you were sieving at the time. Go into the folder aliqueit has created for the ggnfs job. Rename "spairs.out" to "spairs.add". Get the last special q from ".last_spq0" and change the q0 in "test.job" to that value. (Do not change qintsize or q1.) Restart aliqueit with the -e switch. First it will call msieve to do the poly search. As it has already found a poly, it will stop and aliqueit will run factMsieve.pl, resuming from where you left off.