mersenneforum.org  

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

Reply
 
Thread Tools
Old 2019-08-21, 21:19   #364
Prime95
P90 years forever!
 
Prime95's Avatar
 
Aug 2002
Yeehaw, FL

3·13·197 Posts
Default

Quote:
Originally Posted by Evil Genius View Post
But if you have time to spare give it a try on a Zen 1. The results may surprise you.
I'm not sure what you are referring to when you say "Zen 1".

All the benchmark results I've seen from Ryzen chips indicate they are excellent performers. Like Intel chips, they are memory bandwidth limited (for large FFT sizes).
Prime95 is offline   Reply With Quote
Old 2019-08-21, 21:23   #365
Evil Genius
 
Evil Genius's Avatar
 
Jul 2019
the Netherlands

1616 Posts
Default

Quote:
Originally Posted by Prime95 View Post
I'm not sure what you are referring to when you say "Zen 1".

All the benchmark results I've seen from Ryzen chips indicate they are excellent performers. Like Intel chips, they are memory bandwidth limited (for large FFT sizes).
Zen 1 comprises the AMD Ryzen 1000 series, Zen 1+ the 2000 series, and Zen 2 the 3000 series.

AMD Threadrippers will have double the memory channels however.

Last fiddled with by Evil Genius on 2019-08-21 at 21:27
Evil Genius is offline   Reply With Quote
Old 2019-08-22, 05:53   #366
Bulldozer
 
Jun 2019

3·7 Posts
Default

Quote:
Originally Posted by Evil Genius View Post
Zen 1 comprises the AMD Ryzen 1000 series, Zen 1+ the 2000 series, and Zen 2 the 3000 series.

AMD Threadrippers will have double the memory channels however.
Nope. Ryzen 1000 series is Zen, 2000 series is Zen+, and the 3000 series is Zen 2.
Bulldozer is offline   Reply With Quote
Old 2019-08-25, 05:48   #367
ixfd64
Bemusing Prompter
 
ixfd64's Avatar
 
"Danny"
Dec 2002
California

97816 Posts
Default

Very minor issue: on macOS, part of the text box is always cut off.
Attached Thumbnails
Click image for larger version

Name:	Screen Shot 2019-08-24 at 10.47.09 PM.png
Views:	112
Size:	950.0 KB
ID:	20945  
ixfd64 is offline   Reply With Quote
Old 2019-08-25, 22:19   #368
pepi37
 
pepi37's Avatar
 
Dec 2011
After milion nines:)

1,487 Posts
Default

Can Prime95 be configured in such way to show what FFT will be used when processing of candidate is started?
To put that info in some log file or something like that
pepi37 is online now   Reply With Quote
Old 2019-08-25, 22:44   #369
hansl
 
hansl's Avatar
 
Apr 2019

20510 Posts
Default

Quote:
Originally Posted by pepi37 View Post
Can Prime95 be configured in such way to show what FFT will be used when processing of candidate is started?
To put that info in some log file or something like that
It does already appear in the main worker window for me, but not specifically in a log from what I can see:
Code:
Starting primality test of MXXXXXXXX using FMA3 FFT length 2560K, Pass1=640, Pass2=4K, clm=4, 4 threads
hansl is offline   Reply With Quote
Old 2019-08-25, 23:30   #370
pepi37
 
pepi37's Avatar
 
Dec 2011
After milion nines:)

1,487 Posts
Default

Quote:
Originally Posted by hansl View Post
It does already appear in the main worker window for me, but not specifically in a log from what I can see:
Code:
Starting primality test of MXXXXXXXX using FMA3 FFT length 2560K, Pass1=640, Pass2=4K, clm=4, 4 threads

I would like to put list of candidates in worktodo.txt so Prime95 scan and write what FFT will be used.
pepi37 is online now   Reply With Quote
Old 2019-08-26, 02:38   #371
ssybesma
 
"Steve Sybesma"
May 2012
Brighton, CO USA

89 Posts
Default take a look at the link for Mac OS X from the top posting

Mac OS X: https://mersenne.org/gimps/ftp_root/...8b6.MacOSX.zip


The web folders ftp_root and gimps are transposed and so it won't download.
Takes you to the Home tab on the main website.
ssybesma is offline   Reply With Quote
Old 2019-08-26, 04:50   #372
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

11×461 Posts
Default

Quote:
Originally Posted by pepi37 View Post
I would like to put list of candidates in worktodo.txt so Prime95 scan and write what FFT will be used.
With a little bit of experience, you'll know which FFT is used; it's not like LLR where the FFT choice has multiple inputs (k and n), so you'll learn the approximate cutoffs in fairly short time.

If you post the architecture you run P95 on, I bet some experienced user can share them from (human) memory.
VBCurtis is offline   Reply With Quote
Old 2019-08-26, 06:14   #373
S485122
 
S485122's Avatar
 
"Jacob"
Sep 2006
Brussels, Belgium

22×439 Posts
Default

Quote:
Originally Posted by ssybesma View Post
Mac OS X: https://mersenne.org/gimps/ftp_root/...8b6.MacOSX.zip


The web folders ftp_root and gimps are transposed and so it won't download.
Takes you to the Home tab on the main website.
On the website also there are some links that deserve corrections, it is still version 3 that is posted. Also on the site on the download page all links point to http instead of https.

Jacob
S485122 is offline   Reply With Quote
Old 2019-08-26, 07:07   #374
ssybesma
 
"Steve Sybesma"
May 2012
Brighton, CO USA

89 Posts
Default

Quote:
Originally Posted by S485122 View Post
On the website also there are some links that deserve corrections, it is still version 3 that is posted. Also on the site on the download page all links point to http instead of https.

Jacob



Yep, if I see something I'll let you know.
ssybesma is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Prime95 version 29.2 Prime95 Software 71 2017-09-16 16:55
Prime95 version 29.1 Prime95 Software 95 2017-08-22 22:46
Prime95 version 26.5 Prime95 Software 175 2011-04-04 22:35
Prime95 version 25.9 Prime95 Software 143 2010-01-05 22:53
Prime95 version 25.8 Prime95 Software 159 2009-09-21 16:30

All times are UTC. The time now is 13:44.


Fri Dec 3 13:44:01 UTC 2021 up 133 days, 8:13, 0 users, load averages: 0.95, 1.06, 1.12

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, 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.