PRP or LLR?

edorajh · 2006-03-08, 00:26

Just to clear my confusion... when we reserve range for primality testing dowe use PRP or LLR program? It seems to my that we use LLR. If that is so, then why you call your primality testing PRP?

Thanks for clarification.

Edo

Citrix · 2006-03-08, 00:52

The 2 programs use different algorithms. LLR uses proth test and PRP uses the PRP test. Initially LLR did not use proth's test but PRP test hence the terminology has stuck since the start of the project. Use any program you like, both are equally fast. Just let us know which one you used.

edorajh · 2006-03-08, 01:02

Thanks for respons. But if I use PRP don't I have results from PRP use as input in proth (LLR)? I think I read something like that on Prime pages, but it's possible I missundetood.

I downloaded LLR from here (manual PRP client)...
http://www.ldausch.de/guides/prp.html

Is this the same LLR used in Riesel Prime Search? What one report if discover prime with that program? LLR or PRP under program? and in that case does discoverer of new prime report sieving program (even discoverer use presieved ranges)?

Thanks,
Edo

Citrix · 2006-03-08, 02:31

I recommend you should report the sieving program, to give credit to the author, even if you did not use it personally. But it is upto you since you found the prime. For LLR vs PRP, report the one you used. Remember, PRP does not prove prime so you will have to test the prime with LLR anyway.

As for the program from ldaush.de, it is the same one that the riesel search uses. The input to LLR and PRP is same only the output differs.

If you have found a prime for a particular project, I could tell you which programs to give credit to.

edorajh · 2006-03-08, 08:40

Thank you very much for your clarification.

I didn't (still) find prime, but I hope I will. That's why I'm interesting in this. And I spend some time on top-5000 list looking at different provers codes and rankings for different projects. I notice there that people report different things so I was curious.

Anyway I plan to reserve one of PSP ranges for primality testing as soon as I finish search I'm currently doing.

Edo

Citrix · 2006-03-10, 01:29

good luck finding primes!

2006-03-08, 00:26	#1
edorajh Oct 2003 Croatia 456₁₀ Posts	PRP or LLR? Just to clear my confusion... when we reserve range for primality testing dowe use PRP or LLR program? It seems to my that we use LLR. If that is so, then why you call your primality testing PRP? Thanks for clarification. Edo

2006-03-08, 00:52	#2
Citrix Jun 2003 2·7·113 Posts	The 2 programs use different algorithms. LLR uses proth test and PRP uses the PRP test. Initially LLR did not use proth's test but PRP test hence the terminology has stuck since the start of the project. Use any program you like, both are equally fast. Just let us know which one you used. Last fiddled with by Citrix on 2006-03-08 at 00:53

2006-03-08, 01:02	#3
edorajh Oct 2003 Croatia 710₈ Posts	Thanks for respons. But if I use PRP don't I have results from PRP use as input in proth (LLR)? I think I read something like that on Prime pages, but it's possible I missundetood. I downloaded LLR from here (manual PRP client)... http://www.ldausch.de/guides/prp.html Is this the same LLR used in Riesel Prime Search? What one report if discover prime with that program? LLR or PRP under program? and in that case does discoverer of new prime report sieving program (even discoverer use presieved ranges)? Thanks, Edo

2006-03-08, 02:31	#4
Citrix Jun 2003 1582₁₀ Posts	I recommend you should report the sieving program, to give credit to the author, even if you did not use it personally. But it is upto you since you found the prime. For LLR vs PRP, report the one you used. Remember, PRP does not prove prime so you will have to test the prime with LLR anyway. As for the program from ldaush.de, it is the same one that the riesel search uses. The input to LLR and PRP is same only the output differs. If you have found a prime for a particular project, I could tell you which programs to give credit to.

2006-03-08, 08:40	#5
edorajh Oct 2003 Croatia 2³·3·19 Posts	Thank you very much for your clarification. I didn't (still) find prime, but I hope I will. That's why I'm interesting in this. And I spend some time on top-5000 list looking at different provers codes and rankings for different projects. I notice there that people report different things so I was curious. Anyway I plan to reserve one of PSP ranges for primality testing as soon as I finish search I'm currently doing. Edo

2006-03-10, 01:29	#6
Citrix Jun 2003 2×7×113 Posts	good luck finding primes!