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Forum: XYYXF Project 2022-05-19, 15:06
Replies: 37
Views: 14,223
Posted By xilman
3522^851+851^3522 certificate uploaded.

3522^851+851^3522 certificate uploaded.
Forum: And now for something completely different 2022-05-16, 19:07
Replies: 100
Views: 4,066
Posted By xilman
As a consequence of my incompetence, the latest...

As a consequence of my incompetence, the latest git version has an initial probable prime test, and a -t switch to disable that functionality.

My thanks to Andreas!
Forum: Soap Box 2022-05-16, 16:59
Replies: 386
Views: 15,697
Posted By xilman
I loved this one: ...

I loved this one:

https://twitter.com/Kaylan_TX/status/1526197592232796167
Forum: XYYXF Project 2022-05-16, 15:24
Replies: 37
Views: 14,223
Posted By xilman
Thanks. My run is going well now that I...

Thanks.

My run is going well now that I spotted a typo which wasted roughly two core-weeks of computation :blush:
Forum: Soap Box 2022-05-15, 12:13
Replies: 905
Views: 85,376
Posted By xilman
https://www.bbc.co.uk/news/world-us-canada-6145498...

https://www.bbc.co.uk/news/world-us-canada-61454989
Forum: XYYXF Project 2022-05-14, 14:43
Replies: 37
Views: 14,223
Posted By xilman
Started it running with 7 slots on a 6 core...

Started it running with 7 slots on a 6 core hyperthreaded system. It is taking much less memory so far than the earlier run --- 0.65G as opposed to 1.6G per process.
Forum: And now for something completely different 2022-05-14, 14:41
Replies: 100
Views: 4,066
Posted By xilman
Andreas got back to me. The magic incantation is...

Andreas got back to me. The magic incantation is "autoreconf -vfi". A "git reset --hard" afterwards is advisable too.
Forum: XYYXF Project 2022-05-14, 14:22
Replies: 37
Views: 14,223
Posted By xilman
I will take 3522,851 if noone else wants it. ...

I will take 3522,851 if noone else wants it.

Seems only fair because it was I who found it PRP.

Paul
Forum: And now for something completely different 2022-05-14, 11:07
Replies: 100
Views: 4,066
Posted By xilman
Remembered to start with aclocal (doh!) but now...

Remembered to start with aclocal (doh!) but now get pcl@thoth:~/nums/cm$ ./configure
configure: error: cannot find required auxiliary files: ltmain.sh compile config.guess config.sub missing...
Forum: And now for something completely different 2022-05-14, 10:57
Replies: 100
Views: 4,066
Posted By xilman
Anyone had problems with the git version? ...

Anyone had problems with the git version?

There is no configure script, which is fair enough, but running autoconf producespcl@thoth:~/nums/cm$ autoconf
configure.ac:29: error: possibly undefined...
Forum: Factoring 2022-05-13, 18:08
Replies: 86
Views: 88,828
Posted By xilman
Looks like someone beat me to it.

Looks like someone beat me to it.
Forum: And now for something completely different 2022-05-13, 18:05
Replies: 100
Views: 4,066
Posted By xilman
Anyone any idea how long it generally takes...

Anyone any idea how long it generally takes factordb to verify a certificate?

3178^1543+1543^3178 is still in the Processing state.
Forum: And now for something completely different 2022-05-13, 18:01
Replies: 100
Views: 4,066
Posted By xilman
I have little doubt that it will fix it, as...

I have little doubt that it will fix it, as claimed, but not that it is necessarily a good idea for general use in pari/gp, especially on systems which may be memory bound.

Most of the time I...
Forum: And now for something completely different 2022-05-13, 15:58
Replies: 100
Views: 4,066
Posted By xilman
Hint: gp -q -s 100000000; seemed to work nicely. ...

Hint: gp -q -s 100000000; seemed to work nicely.

Certificate now uploaded. Let's see if it is acceptable.
Forum: And now for something completely different 2022-05-13, 07:36
Replies: 100
Views: 4,066
Posted By xilman
A simple cut and paste gave me *** at...

A simple cut and paste gave me *** at top-level: C=read("/tmp/temp");write("/tmp/temp.out",prim
*** ^--------------------------------------------
*** read: the PARI stack...
Forum: And now for something completely different 2022-05-11, 20:12
Replies: 100
Views: 4,066
Posted By xilman
--- Total time for ECPP: 976676.0...

--- Total time for ECPP: 976676.0 (197674.8)
--- Time for ECPP check (true): 15687.0

real 1373m20.172s
user 8416m44.292s
sys 2m44.721s
Forum: MattcAnderson 2022-05-11, 16:42
Replies: 8
Views: 682
Posted By xilman
Life is like a sewer. What you get out of it...

Life is like a sewer. What you get out of it depends on what you put into it.
Forum: Soap Box 2022-05-11, 14:04
Replies: 425
Views: 67,048
Posted By xilman
https://twitter.com/joeypiccola/status/15241344649...

https://twitter.com/joeypiccola/status/1524134464992931840

A cert expired and so the blinds won't open.
Forum: XYYXF Project 2022-05-11, 10:42
Replies: 37
Views: 14,223
Posted By xilman
--- Time for first ECPP step, depth 572: ...

--- Time for first ECPP step, depth 572: 813973.9 (165129.5)
Forum: XYYXF Project 2022-05-10, 21:17
Replies: 37
Views: 14,223
Posted By xilman
Yeah, it is confusing. I suggest that we try to...

Yeah, it is confusing. I suggest that we try to stick to this thread. I have been as promiscuous as anyone :sad:

Mine has now reacched stage 150, 24945 bits still to go.
Forum: And now for something completely different 2022-05-10, 18:36
Replies: 100
Views: 4,066
Posted By xilman
Interesting. Looks like my choice of 1...

Interesting.

Looks like my choice of 1 process per core was (accidentally) correct. Still wondering whether n+1 on a n-core machine might be a better choice to soak up some of the hyperthreading...
Forum: XYYXF Project 2022-05-10, 12:58
Replies: 37
Views: 14,223
Posted By xilman
Good luck. I had three system crashes so far...

Good luck.

I had three system crashes so far from HDMI not playing fair with the gpu and monitor but mpi-ecpp's restart facility works perfectly. Now reached as far as-- Size [96]: 28063 bits
...
Forum: And now for something completely different 2022-05-09, 17:41
Replies: 100
Views: 4,066
Posted By xilman
The step after that is to learn how to drive mpi...

The step after that is to learn how to drive mpi properly.

I am running mpi-ecpp on a 6-core machine. Without additional information it fired up one master process and 5 workers. Because of...
Forum: And now for something completely different 2022-05-09, 17:32
Replies: 100
Views: 4,066
Posted By xilman
:tu: +1

:tu:
+1
Forum: MattcAnderson 2022-05-09, 15:27
Replies: 2
Views: 108
Posted By xilman
Both theorems are trivial. Other than 2, all...

Both theorems are trivial.

Other than 2, all primes are odd. The difference between two odd numbers is even: 2j+1 - (2i+1) = 2(j-i).

x^2+x = x(x+1) and is therefore divisible by x. 41 is prime...
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