mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > Software

Reply
 
Thread Tools
Old 2018-08-24, 17:31   #309
a1call
 
a1call's Avatar
 
"Rashid Naimi"
Oct 2015
Out of my Body

17·107 Posts
Default

Quote:
Originally Posted by paulunderwood View Post
GIGO. What is "it"? "***"?
It's there integer that I input, I replaced it with*** before posting here (for privacy).
The actual GUI output shows the integer.
a1call is offline   Reply With Quote
Old 2018-08-24, 18:11   #310
paulunderwood
 
paulunderwood's Avatar
 
Sep 2002
Database er0rr

17×193 Posts
Default

Quote:
Originally Posted by a1call View Post
It's there integer that I input, I replaced it with*** before posting here (for privacy).
The actual GUI output shows the integer.
With up to something like 10^10000000 for us to try to find your weird output, I don't think you are being very helpful in tracking down your problem, which maybe due to a bad expression or a bad switch.

Last fiddled with by paulunderwood on 2018-08-24 at 18:34 Reason: changed specifier to switch
paulunderwood is online now   Reply With Quote
Old 2018-08-24, 20:50   #311
a1call
 
a1call's Avatar
 
"Rashid Naimi"
Oct 2015
Out of my Body

17×107 Posts
Default

The input to the GUI is:
Code:
pfgw -t -f -q2*3^19+1


The output from the GUI is:
Code:
PFGW Version 3.8.3.64BIT.20161203.Win_Dev [GWNUM 28.6]

Primality testing 2*3^19+1 [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3


Done.

The actual exponent is not 19 but rather a slightly larger integer.

Thank you for your time.
a1call is offline   Reply With Quote
Old 2018-08-24, 21:01   #312
paulunderwood
 
paulunderwood's Avatar
 
Sep 2002
Database er0rr

17·193 Posts
Default

Quote:
Originally Posted by a1call View Post
The input to the GUI is:
Code:
pfgw -t -f -q2*3^19+1


The output from the GUI is:
Code:
PFGW Version 3.8.3.64BIT.20161203.Win_Dev [GWNUM 28.6]

Primality testing 2*3^19+1 [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3


Done.
The actual exponent is not 19 but rather a slightly larger integer.

Thank you for your time.

Dropping the "-t" switch will run a much faster PRP check.

Try putting the expession after -q in quotes i.e. -q"2*3^39+1".

Oh and with the GUI, you don't need to have pfgw in the input line.

Last fiddled with by paulunderwood on 2018-08-24 at 21:13
paulunderwood is online now   Reply With Quote
Old 2018-08-24, 21:32   #313
rogue
 
rogue's Avatar
 
"Mark"
Apr 2003
Between here and the

16A916 Posts
Default

IIRC, ou an also add -Cverbose to get the residue output to the screen.
rogue is online now   Reply With Quote
Old 2018-08-25, 01:01   #314
a1call
 
a1call's Avatar
 
"Rashid Naimi"
Oct 2015
Out of my Body

17×107 Posts
Default

Thank you for the replies.

When i try some known primes of the same format with the same input format the program states that it is prime and adds it to the prime-log.


Code:
PFGW Version 3.7.10.64BIT.20150809.Win_Dev [GWNUM 28.6]

Primality testing 2*3^105106+1 [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
2*3^105106+1 is prime! (50.0695s+0.0029s)

Done.
With my original candidate there is no is-prime statement and the candidate is not added to the prime-log.

Am I safe to assume that
"Running N-1 test using base 3"
has determined that the candidate is not prime?
Or should I consider the result inconclusive?


Thank you in advance.
a1call is offline   Reply With Quote
Old 2018-08-25, 06:15   #315
a1call
 
a1call's Avatar
 
"Rashid Naimi"
Oct 2015
Out of my Body

17×107 Posts
Default

Ran the exact same input on a different computer with the folder copied from the 1st.
Set the "Output" to "Screen Verbose"


Code:
pfgw -t -f -q2*3^1982877+1
Code:
PFGW Version 3.7.10.64BIT.20150809.Win_Dev [GWNUM 28.6]

Primality testing 2*3^1982877+1 [N-1, Brillhart-Lehmer-Selfridge]
trial factoring to 371935266
Running N-1 test using base 3
Special modular reduction using all-complex FMA3 FFT length 192K, Pass1=128, Pass2=1536 on 2*3^1982877+1
2*3^1982877+1 is composite (13905.0449s+0.0390s)


Done.
a1call is offline   Reply With Quote
Old 2018-09-14, 05:26   #316
calimero22
 
Nov 2015

2·32 Posts
Default

Hi
Is there the 32-bit version of PFGW?
Thank you
GIovanni
calimero22 is offline   Reply With Quote
Old 2018-09-14, 11:58   #317
ET_
Banned
 
ET_'s Avatar
 
"Luigi"
Aug 2002
Team Italia

3·5·317 Posts
Default

Quote:
Originally Posted by calimero22 View Post
Hi
Is there the 32-bit version of PFGW?
Thank you
GIovanni
Yes, I have version PFGW 3.7.7 for MAC, Windows and Linux.

http://www.fermatsearch.org/prog/pfg...7_20130722.zip
http://www.fermatsearch.org/prog/pfg...7_20130722.zip
http://www.fermatsearch.org/prog/pfg...7_20130722.zip

Please consider donating part of your CPU time to our Team_Italia

Luigi
ET_ is offline   Reply With Quote
Old 2018-09-14, 12:02   #318
calimero22
 
Nov 2015

2×32 Posts
Default

Thank You Luigi.
Ciao
Giovanni
calimero22 is offline   Reply With Quote
Old 2018-09-15, 16:16   #319
a1call
 
a1call's Avatar
 
"Rashid Naimi"
Oct 2015
Out of my Body

17·107 Posts
Default

Code:
-t -f -q36669253978236339433616874595555104797964800838891441708308116060327868852459
Code:
PFGW Version 3.8.3.64BIT.20161203.Win_Dev [GWNUM 28.6]

Primality testing 36669253978236339433616874595555104797964800838891441708308116060327868852459 [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
36669253978236339433616874595555104797964800838891441708308116060327868852459 is PRP! (0.0331s+0.5524s)

Done.
Isn't the -t switch supposed to be deterministic?
Else, how can I make a deterministic primality test of this prime?
Thank you for your time.

Last fiddled with by a1call on 2018-09-15 at 16:29
a1call is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
A possible bug in LLR/PFGW while using GWNUM (no bug in P95) Batalov Software 77 2015-04-14 09:01
PFGW 3.2.0 has been Released rogue Software 94 2010-09-14 21:39
PFGW 3.2.3 has been Released rogue Software 10 2009-10-28 07:07
PFGW 3.2.2 has been Released rogue Software 20 2009-08-23 12:14
PFGW 3.2.1 has been released rogue Software 5 2009-08-10 01:43

All times are UTC. The time now is 20:38.

Fri Jul 10 20:38:53 UTC 2020 up 107 days, 18:11, 1 user, load averages: 2.17, 1.89, 1.76

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.