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Old 2021-12-18, 05:25   #166
Prime95
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Quote:
Originally Posted by emiller View Post
Is it possible to get a Mac OS 64 bit version or instructions for how to compile?
Try this: https://www.dropbox.com/s/xo7psmmjfk...SX.tar.gz?dl=0

It is version 30.3 command line version which supports PRP proofs. As always, only for Intel CPUs.
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Old 2021-12-18, 17:20   #167
emiller
 
Apr 2017

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Thanks for the link but this version is giving me the following:

Code:
dyld: Symbol not found: _curl_mime_init
  Referenced from: /Users/emiller/prime95/p95v303b6.MacOSX/./mprime
  Expected in: /usr/lib/libcurl.4.dylib

Abort trap: 6
I found a link to this build earlier, thought I'd ask if there was a more recent build.
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Old 2021-12-27, 02:16   #168
emiller
 
Apr 2017

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Maybe a build with only static linking?
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Old 2022-01-02, 23:22   #169
Prime95
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Quote:
Originally Posted by emiller View Post
Thanks for the link but this version is giving me the following:

Code:
dyld: Symbol not found: _curl_mime_init
  Referenced from: /Users/emiller/prime95/p95v303b6.MacOSX/./mprime
  Expected in: /usr/lib/libcurl.4.dylib

Abort trap: 6
I found a link to this build earlier, thought I'd ask if there was a more recent build.
I just built 30.7 build 9. It likely has the same libcurl problem. If so, let me know and I'll see if static linking is possible.
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Old 2022-01-02, 23:30   #170
James Heinrich
 
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"James Heinrich"
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ex-Northern Ontario

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Quote:
Originally Posted by Prime95 View Post
I just built 30.7 build 9. It likely has the same libcurl problem. If so, let me know and I'll see if static linking is possible.
Available here, if that wasn't immediately apparent:
https://mersenne.org/ftp_root/gimps/....MacOSX.tar.gz
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Old 2022-01-03, 04:00   #171
Prime95
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Quote:
Originally Posted by emiller View Post
Maybe a build with only static linking?
I think I figured out how to do this, please report on whether it worked.
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Old 2022-01-10, 10:02   #172
congsz
 
"Cong Shengzhuo"
Sep 2021
Nanjing, China

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Default A small advice to the Prime95 software

In the Prime95 software, when I clicked on 'Advanced--ECM', the default setting of the 'number to factor' is 2^1061-1. However, this number has been completely factored roughly ten years ago, so I wish the default could be changed to 2^1277-1, which is currently the smallest Mersenne composite that we haven't found any factors of.
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Old 2022-01-10, 10:09   #173
Zhangrc
 
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Quote:
Originally Posted by congsz View Post
In the Prime95 software, when I clicked on 'Advanced--ECM', the default setting of the 'number to factor' is 2^1061-1. However, this number has been completely factored roughly ten years ago, so I wish the default could be changed to 2^1277-1, which is currently the smallest Mersenne composite that we haven't found any factors of.
Yes, but millions of GHZ-days have already been spent on that exponent with no factor found. the smallest factor might be at least 2^300.
Maybe no default number?
(Happy to see another Chinese user )
(ps: why don't you suggest 2^1949001-1 ....)

Last fiddled with by Zhangrc on 2022-01-10 at 10:14
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Old 2022-01-16, 06:35   #174
pyajve
 
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Aug 2015

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Default Segmentation fault on Debian Linux

Not very popular case, P-1 then TF-LMH, but still. Version mprime-30.7b9 on Linux Debian on 4-core E3-1240 v6 CPU crashes when completing P-1 and switching to trial factoring.
My configuration has 1 worker and 4 cores.

worktodo.txt
PFactor=3D003848AAF4D766D47DC6759098C9B1,1,2,108611647,-1,77,2
Factor=621092F3083ADEA698FF551DF07864ED,238617823,73,74

When trying to send the result to server and switch from 4 threads on P-1 (one main, three helpers) to 8 threads on TF the application crashes.

./mprime -d -c

This reports the completed work unit to server leaving only Factor= in the worktodo.

./mprime -d

[Main thread Jan 16 06:28] Mersenne number primality test program version 30.7
[Main thread Jan 16 06:28] Optimizing for CPU architecture: Core i3/i5/i7, L2 cache size: 4x256 KB, L3 cache size: 8 MB
[Main thread Jan 16 06:28] Starting worker.
[Work thread Jan 16 06:28] Worker starting
[Work thread Jan 16 06:28] Setting affinity to run worker on CPU core #1
[Work thread Jan 16 06:28] Setting affinity to run helper thread 1 on CPU core #1
[Work thread Jan 16 06:28] Setting affinity to run helper thread 3 on CPU core #2
[Work thread Jan 16 06:28] Setting affinity to run helper thread 5 on CPU core #3
[Work thread Jan 16 06:28] Setting affinity to run helper thread 7 on CPU core #4
[Work thread Jan 16 06:28] Starting trial factoring of M238617823 to 2^74
[Work thread Jan 16 06:28] Setting affinity to run helper thread 2 on CPU core #2
Segmentation fault

Manually run TF on mfaktc on Windows, so no work unit is lost.

Could somebody please look at the Seg fault issue.
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Old 2022-01-16, 09:24   #175
S485122
 
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"Jacob"
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With an AVX512F capable processor I see 2 to 4 % lower iteration times on bigger exponents using a 3200 K FFT than lower exponents using a 3136 K FFT. I could force the FFT length.
As far as I know, the benchmarks do not test different FFT length for a given exponent.
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Old 2022-01-19, 05:09   #176
Prime95
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Quote:
Originally Posted by pyajve View Post
Version mprime-30.7b9 on Linux Debian on 4-core E3-1240 v6 CPU crashes when completing P-1 and switching to trial factoring.

Could somebody please look at the Seg fault issue.
Will be fixed in next 30.8 build. Only affects TF using the AVX-512 instruction set. It is an assembler bug with an easy workaround.
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