Forum: Hardware
2010-09-09, 14:12
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Replies: 5
Views: 1,208
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Forum: Hardware
2010-09-09, 13:56
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Replies: 5
Views: 1,208
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Forum: Hardware
2010-09-09, 13:48
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Replies: 5
Views: 1,208
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Forum: Factoring
2010-08-26, 09:09
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Replies: 19
Views: 5,377
N =...
N = 67265468438158925156029310985265926133792339483088426060945720579389614045244727695101069671293650665794246539609007915477818493
c =...
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Forum: Factoring
2010-08-25, 20:14
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Replies: 19
Views: 5,377
Excellent, will do that when I'm back at the...
Excellent, will do that when I'm back at the machine that has the factors (I got part way through a GMP program to calculate the numbers before realising I didn't have the factors to hand!)
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Forum: Factoring
2010-08-24, 08:57
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Replies: 19
Views: 5,377
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Forum: Factoring
2010-08-16, 09:29
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Replies: 19
Views: 5,377
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Forum: GMP-ECM
2007-05-29, 12:31
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Replies: 11
Views: 2,463
The web page is automatically generated by the...
The web page is automatically generated by the ecmnet server.
To change the information on that page you'll need C++ programming skills and a copy of the ecmnet (just stick "ecmnet" in google and...
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Forum: GMP-ECM
2007-05-16, 13:51
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Replies: 6
Views: 3,972
But what about a case such as 123012031 ?
...
But what about a case such as 123012031 ?
which is 4523 * 27197
Depending on the sigma I can discover either factor:-
GMP-ECM 6.1 [powered by GMP 4.1.4] [ECM]
Input number is 123012031 (9...
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Forum: Prime Sierpinski Project
2007-05-15, 13:24
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Replies: 51
Views: 10,368
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Forum: Factoring
2007-05-14, 16:59
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Replies: 96
Views: 10,277
What about a script for Homogeneous Cunningham...
What about a script for Homogeneous Cunningham numbers (a^n +/- b^n) (i.e., takes a, b, n, known factors) and spits out an SNFS poly file?
I'm going to try and knock up my own based but someone...
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Forum: Prime Sierpinski Project
2007-05-14, 16:56
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Replies: 51
Views: 10,368
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Forum: Prime Sierpinski Project
2007-04-18, 10:44
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Replies: 17
Views: 4,525
Great work Geoff.
I'm beginning to wonder if...
Great work Geoff.
I'm beginning to wonder if SPH really is worth the trouble it is. I wrote a whole load of stuff about sieving (Riesel/Sierpinski, DL problem, BSGS and SPH) over at the SoB forum:...
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Forum: Sierpinski/Riesel Base 5
2007-03-14, 18:57
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Replies: 172
Views: 18,907
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Forum: Sierpinski/Riesel Base 5
2007-03-09, 15:37
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Replies: 172
Views: 18,907
Must be compiled with -m64
Only tested on...
Must be compiled with -m64
Only tested on MacOS X on 64-bit PPC, not Linux (not sure if the sysctl interface is the same).
#include <stdio.h>
#include <stdint.h>
#include <sys/sysctl.h>
...
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Forum: Sierpinski/Riesel Base 5
2007-03-09, 15:19
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Replies: 172
Views: 18,907
MacOS X command line:-
sysctl...
MacOS X command line:-
sysctl hw.l1icachesize
sysctl hw.l1dcachesize
sysctl hw.l2cachesize
So I'm guessing there'll be somewhere in the sysctl() function call...indeed, in...
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Forum: Factoring
2007-03-06, 12:07
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Replies: 13
Views: 2,091
I agree, in my hacked version of ecmnet I test...
I agree, in my hacked version of ecmnet I test for primality when adding the number to the server, not before each and every curve.
It may be ok if you're making ecm do multiple curves on the same...
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Forum: Lounge
2007-03-02, 15:39
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Replies: 6
Views: 695
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Forum: Sierpinski/Riesel Base 5
2007-02-20, 12:00
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Replies: 172
Views: 18,907
That looks great Geoff.
I hope my message...
That looks great Geoff.
I hope my message didn't come over as "my sieve is faster than yours", it certainly wasn't meant that way.
If we work together and share code/results we can make each...
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Forum: Sierpinski/Riesel Base 5
2007-02-16, 09:28
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Replies: 172
Views: 18,907
Yes. 1 kp= 1000 p/s.
So 612kp/sec could be...
Yes. 1 kp= 1000 p/s.
So 612kp/sec could be anything from 612000 p/sec to 612999 p/sec.
If you want it to report p/sec then remove the multiple of 0.001 on line 770 in proth_sieve.c and change...
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Forum: Sierpinski/Riesel Base 5
2007-02-15, 12:59
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Replies: 172
Views: 18,907
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Forum: Sierpinski/Riesel Base 5
2007-02-15, 11:42
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Replies: 172
Views: 18,907
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Forum: Octoproth Search
2007-02-14, 16:37
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Replies: 1
Views: 9,185
History
Sorry, other things came up and I don't have time for this any more.
You can download zip files of my octo/dodeca/hexadeca-proth directories here:-
There may be all manner of rubbish in there,...
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Forum: Factoring
2007-02-09, 10:37
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Replies: 1,859
Views: 211,644
Got some free time to play with my factoring...
Got some free time to play with my factoring daemon code on the blade server and used the latest comps.gz file for a while.
3,2,403+ was a c160
p27 = 107785168849898377990351109 Method=ECM ...
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Forum: Sierpinski/Riesel Base 5
2007-01-15, 13:13
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Replies: 172
Views: 18,907
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