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Search: Posts Made By: paulunderwood
Forum: Lounge 2021-05-18, 16:05
Replies: 223
Views: 36,569
Posted By paulunderwood
Not true. it will be 15 0's followed by 9. ...

Not true. it will be 15 0's followed by 9.

:orly owl:
Forum: GpuOwl 2021-05-17, 05:17
Replies: 10
Views: 566
Posted By paulunderwood
In a new directory, use git clone...

In a new directory, use git clone https://github.com/preda/gpuowl.git Then make.
Forum: Miscellaneous Math 2021-05-15, 04:04
Replies: 1
Views: 319
Posted By paulunderwood
kronecker(a^2-4*a,n)==-1 ...

kronecker(a^2-4*a,n)==-1
kronecker(a^2+4*a,n)==-1
a^((n-1)/2)==kronecker(a,n) (mod n)
x^((n+1)/2)==kronecker(a,n) (mod n, x^2-(a-2)*x+1)
x^((n+1)/2)==kronecker(-a,n) (mod n, x^2+(a+2)*x+1)
...
Forum: And now for something completely different 2021-05-12, 10:20
Replies: 6
Views: 110
Posted By paulunderwood
PRP means "probable prime". So it is tautological...

PRP means "probable prime". So it is tautological to say probable prime PRP..

Pseudoprimes are abbreviated to PSP.
Forum: And now for something completely different 2021-05-10, 00:04
Replies: 60
Views: 3,215
Posted By paulunderwood
Hah. I'll abort my run,

Hah. I'll abort my run,
Forum: And now for something completely different 2021-05-09, 21:29
Replies: 60
Views: 3,215
Posted By paulunderwood
I'll gladly run it. Starting now.

I'll gladly run it. Starting now.
Forum: GPU Computing 2021-05-09, 20:09
Replies: 20
Views: 459
Posted By paulunderwood
The k80 has a non-standard power socket. This is...

The k80 has a non-standard power socket. This is why we strongly recommend a power feed from two PCI-e to K80 (special) which can get from eBay for a fiver. Search: "K80 power cable"..
Forum: And now for something completely different 2021-05-09, 15:30
Replies: 60
Views: 3,215
Posted By paulunderwood
:party:

:party:
Forum: GPU Computing 2021-05-09, 13:41
Replies: 20
Views: 459
Posted By paulunderwood
:goodposting: :tu:

:goodposting: :tu:
Forum: GPU Computing 2021-05-09, 13:02
Replies: 20
Views: 459
Posted By paulunderwood
https://www.youtube.com/watch?v=wB9QtsDeAMo ...

https://www.youtube.com/watch?v=wB9QtsDeAMo

It looks like you have a power pin-out problem. This guy says you need a CPU plug not PCI-e. Maybe you can get a converter (at your own risk). If you...
Forum: GPU Computing 2021-05-09, 12:45
Replies: 20
Views: 459
Posted By paulunderwood
This was one solution:...

This was one solution: https://www.dell.com/community/Rack-Servers/R730-and-NVIDIA-Tesla-K80-Not-Detected/td-p/7629428
Forum: GPU Computing 2021-05-09, 12:27
Replies: 20
Views: 459
Posted By paulunderwood
The WX 2100 is 250w max and the GV100 is 35w....

The WX 2100 is 250w max and the GV100 is 35w. However, the k80 is 300w and this is possibly too much for your DELL system and risks damage to it.
Forum: Lounge 2021-05-09, 07:50
Replies: 18
Views: 290
Posted By paulunderwood
Not really anything to do with M52 predictions......

Not really anything to do with M52 predictions... If you want a site to be "mobile friendly" why not do the changes needed yourself? Or pay somebody else for the makeover? Why do you expect things to...
Forum: And now for something completely different 2021-05-09, 02:26
Replies: 60
Views: 3,215
Posted By paulunderwood
But, Serge, you have not told what it is! Why the...

But, Serge, you have not told what it is! Why the suspense?

OMG, over 8 million digits!

Bigger than M42, and if it was proven 11th largest prime.
Forum: Hardware 2021-05-07, 10:57
Replies: 172
Views: 23,393
Posted By paulunderwood
Scary number of pads on the "chip" -- would have...

Scary number of pads on the "chip" -- would have to be carefully accurate putting into the socket.
Forum: Miscellaneous Math 2021-05-07, 10:24
Replies: 1
Views: 319
Posted By paulunderwood
Cool Divertimento

Based on the Frobenius tests over:

x^2-a*x+a==0 with kronecker(a^2-4*a,n)==-1
x^2-a*x-a==0 with kronecker(a^2+4*a,n)==-1

which can be transformed into

a^((n-1)/2)==kronecker(a,n) (mod n)...
Forum: Hardware 2021-05-06, 18:09
Replies: 18
Views: 692
Posted By paulunderwood
And sell the system, and wait and buy 2nm tech...

And sell the system, and wait and buy 2nm tech (https://www.bbc.co.uk/news/technology-57009930).
Forum: Hardware 2021-05-06, 01:44
Replies: 18
Views: 692
Posted By paulunderwood
Remove 2 sticks of RAM (DIMMS) if the CPU runs...

Remove 2 sticks of RAM (DIMMS) if the CPU runs with dual channel -- make sure it is running in channel afterwards.

Underclock the CPU and reduce the CPU voltage -- this might require some...
Forum: Lounge 2021-05-05, 03:15
Replies: 40
Views: 2,892
Posted By paulunderwood
Tchaikovsky's 6th symphony, 2nd movement: ...

Tchaikovsky's 6th symphony, 2nd movement:

dLlo3i7qZME
Forum: And now for something completely different 2021-05-05, 02:09
Replies: 54
Views: 18,639
Posted By paulunderwood
Bill Allombert replied to my enquiry to him about...

Bill Allombert replied to my enquiry to him about the certiifcation of U(130021):
Forum: Lounge 2021-05-04, 20:50
Replies: 40
Views: 2,892
Posted By paulunderwood
Mars, "the bringer of war", The Planets, Gustav...

Mars, "the bringer of war", The Planets, Gustav Holst is in 5/4 time

Jmk5frp6-3Q
Forum: And now for something completely different 2021-05-04, 19:41
Replies: 54
Views: 18,639
Posted By paulunderwood
It will interesting to hear of what hardware they...

It will interesting to hear of what hardware they are using -- maybe a cluster?
Forum: Information & Answers 2021-05-04, 18:44
Replies: 15
Views: 449
Posted By paulunderwood
https://www.mersenne.org/report_exponent/?exp_lo=1...

https://www.mersenne.org/report_exponent/?exp_lo=110826539&full=1 now shows "verified" :smile:

I can only reiterate that you run ls -laR | grep root in your mprime directory.
Forum: Information & Answers 2021-05-04, 15:36
Replies: 15
Views: 449
Posted By paulunderwood
gpuOwl comes with a file called upload.py...

gpuOwl comes with a file called upload.py (https://github.com/preda/gpuowl/blob/master/tools/upload.py) which I use like this

./upload.py PaulUnderwood <blah>.proof

mprime should do the upload...
Forum: Information & Answers 2021-05-04, 15:06
Replies: 15
Views: 449
Posted By paulunderwood
Please see my previous post. I defer to another...

Please see my previous post. I defer to another to tell how to do a manual upload of the proof file. Firstly you will have to copy and paste the json information for the exponent from the results.txt...
Showing results 1 to 25 of 1000

 
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