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Old 2006-09-02, 11:20   #34
akruppa
 
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GMP is statically linked into GMP-ECM so which version of GMP is installed on the system it runs on should not matter, only which version was installed on the system it was compiled on. The different speeds are rather surprising.

Alex

Note: Yamato's post about build problems moved to http://www.mersenneforum.org/showthread.php?t=6186

Last fiddled with by akruppa on 2006-09-02 at 15:35
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Old 2006-09-02, 16:54   #35
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Quote:
Originally Posted by akruppa View Post
I have Linux on a couple of architectures, but sadly, no P4 among them. Only P3, Athlon, Opteron.

Alex
Hi Alex, is that Athlon 64?
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Old 2006-09-02, 17:03   #36
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I have access to a few Athlon, Athlon XP, and Opteron. Opteron uses the AMD64 architecture just like Athlon 64, so I can make binaries for Athlon 64 on the Opterons.

Alex
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Old 2006-09-02, 22:52   #37
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I've rebuild the binary with gmp 4.2.1 - it is quite faster now.

System: Linux (64bit), Athlon64 (gmp 4.2.1, ecm 6.1.1)
File: ecm-6.1.1.tar.gz

Hare's C301 on Athlon64 3400+:

Code:
ecm 3e6 < in.txt >> out.txt
GMP-ECM 6.1.1 [powered by GMP 4.2.1] [ECM]
Input number is 3831565799519436303487742350308454794716675157894098584352121252263510024611805907320592374654433186020517108665467143471934035839395496243353321245760019611207664487665420776742726779780862993590544596916020496510980740067901995154639576852120198067468078357247366647828551141390739467161074462608561 (301 digits)
Using B1=3000000, B2=5706890290, polynomial Dickson(6), sigma=2465834108
Step 1 took 52143ms
Step 2 took 20238ms
Compare these times with those of the P4 3.4GHz (see ATH's posting). That seems to me a stunning improvement within 15 months.

Quote:
The clock speed of my system is slower than yours (2188.896 MHz) according to /proc/cpuinfo.
IIRC the 3500+ has 1024K cache, the 3400+ has only 512K, it might possibly have a significant effect.
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Old 2006-09-03, 13:08   #38
xilman
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Quote:
Originally Posted by akruppa View Post
GMP is statically linked into GMP-ECM so which version of GMP is installed on the system it runs on should not matter, only which version was installed on the system it was compiled on. The different speeds are rather surprising.
Perhaps so.

My experience suggests otherwise. Take a look at the output I quoted. You will note that my machine reported 4.1.4 but that Yamato's reported 4.1.3

Unless he rebuilt it on 4.1.4 after taking his screenshot ...


Paul
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Old 2006-09-26, 18:42   #39
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Is the readme file hosted anywhere for someone playing around with pre-compiled versions?
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Old 2006-09-26, 21:26   #40
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Not as far as I know. It's only in the .tar.gz file.

Alex
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Old 2006-09-26, 21:44   #41
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Is there a way to unzip it (under Windows) without paying out $40 for some unzipping software?
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Old 2006-09-26, 22:05   #42
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WinRAR is free for 40-days, and it works.

but here is readme, news, install from GMP-ECM 6.1.1, I added .txt to them because I'm a windows freak:

README.txt
INSTALL.txt
NEWZ.txt
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Old 2006-09-26, 22:06   #43
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Thanks, I just found the version 5 readme at ElevenSmooth.
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Old 2006-09-26, 22:07   #44
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Quote:
Originally Posted by philmoore View Post
Is there a way to unzip it (under Windows) without paying out $40 for some unzipping software?
You can use 7-Zip.

Last fiddled with by Mystwalker on 2006-09-26 at 22:08
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