genefer/CUDA - Page 6

IBethune · 2011-11-25, 11:26

Mac build 0.99 is now available: http://www.pyramid-productions.net/d...el_0.99.tar.gz

Cheers

- Iain

ET_ · 2011-11-25, 21:16

Wonderful work, it runs flawlessly after the first make

Now, I have a few questions...

1 - How would a input file looks like? Does genefer parse FermFact / NewPGen / npsieve files?
2 - Is there a website where reservations are made?
3 - Is there a genefer user manual (Mark?)?

Luigi

ET_ · 2011-11-25, 21:18

Is there a possibility to have a (generalized) Fermat test program like GMP-Fermat (or GFN from Geoff Reynolds) based on CUDA?

Luigi

rogue · 2011-11-25, 21:45

Quote:

Originally Posted by ET_

1 - How would a input file looks like? Does genefer parse FermFact / NewPGen / npsieve files?
2 - Is there a website where reservations are made?
3 - Is there a genefer user manual (Mark?)?

1. ABC format. I don't recall which flavor format exactly.
2. GFN search projects are run by PrimeGrid using PRPNet. There are some n values not being actively searched yet, one is being searched by David Underbakke and PrimeGrid is sieving the rest.
3. No. All versions of genefer are based upon Yves Gallot's original code.

ET_ · 2011-11-25, 21:47

I'm afraid I did something wrong with genefer CUDA...

Code:

Testing 2868122^16384+1...  348160 steps to go 
maxErr exceeded for 2868122^16384+1, 0.5000 > 0.4500

Are there limitations on the chosen base?

rogue · 2011-11-25, 21:47

Quote:

Originally Posted by ET_

Is there a possibility to have a (generalized) Fermat test program like GMP-Fermat (or GFN from Geoff Reynolds) based on CUDA?

Interesting idea. I think it would be easy to do, but I'll leave the real answer to Shoichiro.

ET_ · 2011-11-25, 22:25

Quote:

Originally Posted by rogue

1. ABC format. I don't recall which flavor format exactly.
2. GFN search projects are run by PrimeGrid using PRPNet. There are some n values not being actively searched yet, one is being searched by David Underbakke and PrimeGrid is sieving the rest.
3. No. All versions of genefer are based upon Yves Gallot's original code.

Thank you Mark!

I stumbled upon Yves Gallot and "The FatPhil" pages, but they seemed out of date.
So, the only way to actively search for such GFNs is joining BOINC and using their pre-sieved ranges. Too bad

Luigi

ET_ · 2011-11-25, 22:31

Quote:

Originally Posted by rogue

Interesting idea. I think it would be easy to do, but I'll leave the real answer to Shoichiro.

I tried to "adapt" Oliver's mfaktc, but with the limitation at 95 bits per factor the project would be useless. Anyway, it could be a good place to start from.

Luigi

msft · 2011-11-27, 09:31

Ver 1.01 source code with Linux64 exec file.

ET_ · 2011-11-27, 09:58

Quote:

Originally Posted by msft

Ver 1.01 source code with Linux64 exec file.

Differences with 0.99?

Luigi

msft · 2011-11-27, 10:10

Quote:

Originally Posted by ET_

Differences with 0.99?

Ken Braziermay`s code changes that may produce a percent or two speed increase in GeneferCUDA.

2011-11-25, 21:18	#58
ET_ Banned "Luigi" Aug 2002 Team Italia 3²×5×107 Posts	A question for Mr. Yamada Is there a possibility to have a (generalized) Fermat test program like GMP-Fermat (or GFN from Geoff Reynolds) based on CUDA? Luigi Last fiddled with by ET_ on 2011-11-25 at 21:20

2011-11-25, 21:47	#60
ET_ Banned "Luigi" Aug 2002 Team Italia 11317₈ Posts	I'm afraid I did something wrong with genefer CUDA... Code: Testing 2868122^16384+1... 348160 steps to go maxErr exceeded for 2868122^16384+1, 0.5000 > 0.4500 Are there limitations on the chosen base?

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2011-11-25, 11:26	#56
IBethune Nov 2010 5² Posts	Mac build 0.99 is now available: http://www.pyramid-productions.net/d...el_0.99.tar.gz Cheers - Iain

2011-11-25, 21:16	#57
ET_ Banned "Luigi" Aug 2002 Team Italia 3²×5×107 Posts	Wonderful work, it runs flawlessly after the first make Now, I have a few questions... 1 - How would a input file looks like? Does genefer parse FermFact / NewPGen / npsieve files? 2 - Is there a website where reservations are made? 3 - Is there a genefer user manual (Mark?)? Luigi