yafu 1.32

bsquared · 2012-07-10, 04:45

link

Changelog:

Code:

+ fixed restart-with-factor bug by logging factors removed during
	restart with add_to_factor_list (thanks 10_metreh)
+ fiddled with q-range table again, and changed multi-threaded nfs sieving
	so that q-ranges are split over the threads, instead of each
	thread getting its own range.  
+ split blocksize dependent code in siqs into separate functions; runtime
	decisions are made based on cpu architecture as to which function to use.  
        This eliminates the need for separate 32k/64k executables.
+ much improved fermat factorization routine: 50x+ faster and accepts
	user supplied multipliers (thanks neonsignal!)
+ watch for ggnfs siever crash error code (thanks WraithX)
+ added ETA estimate to ecm for larger B1 values
+ added ETA estimate to the filtering stage of NFS, while sieving
+ cosmetic changes to factor() messages
+ resume nfs in factor() if input matches .job file
+ -ns bug fix and small changes to nfs state machine (thanks Dubslow)

Happy factoring!

Dubslow · 2012-07-10, 16:56

Multithreaded ECM doesn't seem to have quite as high utilization, maybe 97% instead of 100%, but no threads are getting "left behind" either. The ETA is pretty cool.

Edit: The longer each curve (i.e. the higher the bound), the higher utilization it shows.

bsquared · 2012-07-10, 17:24

I'm glad you're seeing better ECM performance, but I didn't do anything to upgrade the threading model for ECM. Maybe you just have less load from other programs this time. (Note: upgrading the threading model is still on my todo list.)

The new ETA's are kinda neat to watch - that was a good idea from swellman!

Batalov · 2012-07-10, 18:46

That was always the idea behind having the blinkenlights on the command line!

...make something enjoyable to watch and people will download it.
(Come for a smashing BIONC screensaver, get hooked on the whole deal! Come for a two-girls-one-cup reaction video, get a virus not counting the permanent brain scar)

Dubslow · 2012-07-10, 20:49

Est-ce seulement moi, or is the filtering more verbose? (If it isn't just me, I like it! Now what's a cycle?

[Don't answer if you're just going to say "figure it out" or "google it".])

Batalov · 2012-07-10, 22:49

No google answer, eh? Well you asked for it then:

Quote:

IST NICHT FÜR GEWERKEN BEI DUMMKOPFEN. DER RUBBERNECKEN SIGHTSEEREN KEEPEN DAS COTTONPICKEN HÄNDER IN DAS POCKETS MUSS.

ZO RELAXEN UND WATSCHEN DER BLINKENLICHTEN.

(Caps retained verbatim from the source of the quote and are not mine.)

Also, this is a cycle:

jasonp · 2012-07-11, 00:11

Quote:

Originally Posted by Dubslow

Est-ce seulement moi, or is the filtering more verbose? (If it isn't just me, I like it! Now what's a cycle?

[Don't answer if you're just going to say "figure it out" or "google it".])

Okay.

Dubslow · 2012-07-11, 00:33

Quote:

Originally Posted by jasonp

Okay.

Oh my goodness! That's the most remarkably succinct yet informative reply I've gotten in a long time! Now I even know how filtering differs from remdupsing (and I haven't even looked past the third slide, title included).

Thanks! (The question had been an offhanded one that I wasn't expecting to follow up, but with the information right there...)

Edit: It's still 80% gibberish to me, but I feel that my OQ has been satisfactorily answered within the rather small limits of my current knowledge.

Dubslow · 2012-07-12, 22:42

Code:

ecm: 906/906 curves on C131 input, at B1 = 1M, B2 = gmp-ecm default ETA: 3 seccc

ecm.c

Code:

charcount2 = printf(" ETA: %1.0f sec", est_time);

-->

Code:

charcount2 = printf(" ETA: %1.0f sec         ", est_time);

That will handle ETAs of up to ten digits

ET_ · 2012-07-13, 08:53

Quote:

Originally Posted by Dubslow

Code:

ecm: 906/906 curves on C131 input, at B1 = 1M, B2 = gmp-ecm default ETA: 3 seccc

ecm.c

Code:

charcount2 = printf(" ETA: %1.0f sec", est_time);

-->

Code:

charcount2 = printf(" ETA: %1.0f sec         ", est_time);

That will handle ETAs of up to ten digits

But not old screens of 80 chars per line...

Luigi

Dubslow · 2012-07-13, 14:23

Quote:

Originally Posted by ET_

But not old screens of 80 chars per line...

Luigi

Whoops

I really like the resume-nfs-from-factor feature, that means I can pause an NFS job and resume it with aliqueit, rather than having to be around right when it finishes to restart aliqueit.

2012-07-10, 16:56	#2
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 16065₈ Posts	Multithreaded ECM doesn't seem to have quite as high utilization, maybe 97% instead of 100%, but no threads are getting "left behind" either. The ETA is pretty cool. Edit: The longer each curve (i.e. the higher the bound), the higher utilization it shows. Last fiddled with by Dubslow on 2012-07-10 at 17:01

2012-07-10, 17:24	#3
bsquared "Ben" Feb 2007 5×727 Posts	I'm glad you're seeing better ECM performance, but I didn't do anything to upgrade the threading model for ECM. Maybe you just have less load from other programs this time. (Note: upgrading the threading model is still on my todo list.) The new ETA's are kinda neat to watch - that was a good idea from swellman! Last fiddled with by bsquared on 2012-07-10 at 19:02 Reason: didn't need the quote...

2012-07-12, 22:42	#9
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 3×29×83 Posts	Code: ecm: 906/906 curves on C131 input, at B1 = 1M, B2 = gmp-ecm default ETA: 3 seccc ecm.c Code: charcount2 = printf(" ETA: %1.0f sec", est_time); --> Code: charcount2 = printf(" ETA: %1.0f sec ", est_time); That will handle ETAs of up to ten digits

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2012-07-10, 18:46	#4
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 3×3,301 Posts	That was always the idea behind having the blinkenlights on the command line! ...make something enjoyable to watch and people will download it. (Come for a smashing BIONC screensaver, get hooked on the whole deal! Come for a two-girls-one-cup reaction video, get a virus not counting the permanent brain scar)

2012-07-10, 20:49	#5
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 7221₁₀ Posts	Est-ce seulement moi, or is the filtering more verbose? (If it isn't just me, I like it! Now what's a cycle? [Don't answer if you're just going to say "figure it out" or "google it".])