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-   -   Very Prime Riesel and Sierpinski k (https://www.mersenneforum.org/showthread.php?t=9755)

Thomas11 2012-02-24 09:03

1 Attachment(s)
Here comes the list for the Sierpinski VPS.
It contains 7357 sequences I've found so far, sorted by increasing k.
Note, that sequences found by others (e.g. Robert) may be missing.

pinhodecarlos 2012-02-24 11:07

Thank you.
My run found so far ~400 Riesel VPS but I still don't know if they are unique.

Carlos Pinho

Thomas11 2012-02-24 11:44

[QUOTE=pinhodecarlos;290711]My run found so far ~400 Riesel VPS but I still don't know if they are unique.
[/QUOTE]

There is also a good chance that some of your E66 sequences are actually E82s. So you should check whether the y-values have 83 as a factor.

pinhodecarlos 2012-02-24 13:35

1 Attachment(s)
E66 sequence (Riesel side) results after a week of run.

Thomas11 2012-02-24 19:24

That's already some nice progress, Carlos!

Note the following equivalences:
[CODE]66 64640529228261 = 82 778801556967
66 66855461035299 = 82 805487482353

66 116867188744879 = 82 1408038418613

66 174048689082875 = 82 2096972157625
66 176227959736563 = 82 2123228430561
66 179381106920693 = 82 2161218155671

66 231720597238563 = 82 2791814424561
66 229615249661549 = 82 2766448791103
66 236807915728611 = 82 2853107418417
66 240706085343121 = 82 2900073317387
[/CODE]

robert44444uk 2012-02-24 19:34

[QUOTE=Thomas11;290744]That's already some nice progress, Carlos!

Note the following equivalences:
[CODE]66 64640529228261 = 82 778801556967
66 66855461035299 = 82 805487482353

66 116867188744879 = 82 1408038418613

66 174048689082875 = 82 2096972157625
66 176227959736563 = 82 2123228430561
66 179381106920693 = 82 2161218155671

66 231720597238563 = 82 2791814424561
66 229615249661549 = 82 2766448791103
66 236807915728611 = 82 2853107418417
66 240706085343121 = 82 2900073317387
[/CODE][/QUOTE]

Athough please note that k == 0 mod 83 does not equate to E82! There are other primes with modulos in the range 67 to 82 that might upset the apple cart. You need to run a slightly more sophisticated program to prove E82ness.

Good progress Carlos lots of 110+ but no big stars yet. Will send you both the updated Riesels by email once I have finished my latest E82 batch - about 70 more to add. Thomas please PM me with details of that.

Regards

Robert

robert44444uk 2012-02-25 13:21

So Pinhodecarlos's 400+ E66's certainly made a difference to the racing records for Riesel E66's, and in the process also claimed one absolute Riesel racing record

23 45 180428480436169 R 66

The E66 Riesel records broken:
[CODE]
11 12 173483375594931 R 66
16 24 175305008039287 R 66
17 28 60349569363979 R 66
18 32 120944701522349 R 66
19 34 120944701522349 R 66
20 38 180241089493793 R 66
22 44 180428480436169 R 66
23 45 180428480436169 R 66
24 51 180428480436169 R 66
38 155 122918667643873 R 66
48 285 120215258092765 R 66
49 314 120215258092765 R 66
50 317 120215258092765 R 66
64 736 177605601970397 R 66
68 859 177605601970397 R 66
69 890 177605601970397 R 66
97 4354 64527418238639 R 66
98 4561 173849449948879 R 66
99 4934 64527418238639 R 66
100 4987 64527418238639 R 66
101 5144 64527418238639 R 66
102 5808 173849449948879 R 66
103 5828 173849449948879 R 66
104 6010 173849449948879 R 66
105 6877 173849449948879 R 66
106 7065 65007399129945 R 66
107 7462 65007399129945 R 66
108 7729 65007399129945 R 66
109 8274 65007399129945 R 66
110 8283 65007399129945 R 66



[/CODE]

Thomas11 2012-02-27 09:47

During the weekend I found the first CC12 for the Sierpinski side.
And actually not one, but two of them:

12 12 157027377772925 S 52
12 12 161934190135579 S 52

gd_barnes 2012-03-01 21:17

I'm interested in doing some contributing to this effort. So that I don't have to look through myriads of posts, can someone post the latest Windows and Linux binaries and quick instructions on how to use them? After doing some reading, I understand the nominclature and what Payam numbers are so there's no need to explain those.

Gary

Thomas11 2012-03-02 09:27

1 Attachment(s)
[QUOTE=gd_barnes;291447]... can someone post the latest Windows and Linux binaries and quick instructions on how to use them?[/QUOTE]

Here are the latest Windows and Linux 64 bit binaries. A Windows 32 bit binary follows in a separate post. The Windows binaries should work out of the box. On Linux machines you will also need to install the gmp library (libgmp). Note, that this is a command line program. Nevertheless, on Windows you may start it with a double click.

Also included are the two input files: in.txt and progress.txt

The example in.txt is configured for E=52 at the Riesel side side, starting from iteration=100. Just do some tests for this configuration to get some feeling of running times, etc.

For production work you will need to change at least in.txt accordingly (e.g. Riesel or Sierpinski side, E level, iteration and sub-iteration).

For E levels higher than E=82 you will also need to adjust the levels of the "Smith check" in progress.txt (see earlier posts, or feel free to ask).

Thomas11 2012-03-02 09:30

1 Attachment(s)
And here comes the 32 bit Windows binary (optimized for P4 machines).
I don't have a Linux 32 bit version at hand now, but you can easily build it by yourself (given that the libgmp-dev package(s) are installed on your system:

[CODE]gcc -O2 -o payam.x payam.c -lm -lgmp[/CODE]

For convenience the source code as well as the two input files are also included in this ZIP file.


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