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Old 2010-09-23, 20:21   #1
Jean Penné
 
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Default LLR V3.8.2 using gwnum 26.2 is available!

Hi,

LLR Version 3.8.2 using the last version 26.2 of the gwnum library is now available as a development version.
The source code of the precedent version 3.8.1 can be compiled and linked with the new gwnum library without any problem, so, I just made very slight appearance updates on it, and no change on the logic.

You may find the compressed binaries and source at this address :

http://jpenne.free.fr/Development/

As usual, I need your help to build the MacIntel binary...

This new version seems to work fine, but I did not make much tests on it...
Thank you by advance to inform me if you have any problem while using this program!

Best Regards,
Jean
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Old 2010-09-24, 14:13   #2
Jeff Gilchrist
 
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Thanks Jean. The use of the new GWNUM gives a nice speedup to the software. I noticed though that the binary for 3.8.1 went from 4.5MB to 25MB, what happened there, is the new gwnum really that huge?

Jeff.
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Old 2010-09-24, 14:26   #3
rogue
 
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Quote:
Originally Posted by Jeff Gilchrist View Post
Thanks Jean. The use of the new GWNUM gives a nice speedup to the software. I noticed though that the binary for 3.8.1 went from 4.5MB to 25MB, what happened there, is the new gwnum really that huge?
Yes. There are many more FFT sizes and architectures supported by gwnum v26.
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Old 2010-09-24, 14:31   #4
Jean Penné
 
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Quote:
Originally Posted by Jeff Gilchrist View Post
Thanks Jean. The use of the new GWNUM gives a nice speedup to the software. I noticed though that the binary for 3.8.1 went from 4.5MB to 25MB, what happened there, is the new gwnum really that huge?

Jeff.
I think yes! The size of Prime95 binary for this version is also 25.3MB

Jean
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Old 2010-09-24, 19:13   #5
Jean Penné
 
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Default Round off problem fixed on Windows binaries!

While building gwnum.lib for the Windows platforms, I ommited the /Op option...
As I am using VC6.0, this option is necessary to avoid some round off errors on primality tests of not-base-two numbers.

This is now fixed, but you must download again the files :

"cllr382dev.zip" and/or "llr382dev.zip" in order to have up-to-date Windows binaries.

Indeed, I also updated the source in "llr382devsrc.zip" accordingly.

Sorry for this drawback and Best Regards,
Jean
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Old 2010-09-24, 21:18   #6
Prime95
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See the known bugs list, http://www.mersenneforum.org/showpos...81&postcount=2 , to see if this version is right for you. Gwnum 26.3 will be available within a week or two.

Last fiddled with by Prime95 on 2010-09-24 at 21:19
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Old 2010-09-25, 10:34   #7
Jeff Gilchrist
 
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Quote:
Originally Posted by Jean Penné View Post
While building gwnum.lib for the Windows platforms, I ommited the /Op option...
As I am using VC6.0, this option is necessary to avoid some round off errors on primality tests of not-base-two numbers.
If you are only building 32bit Windows binaries, is there a reason you haven't upgraded to Visual C++ 2010 Express which is free?
http://www.microsoft.com/express/Windows/

Jeff.
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Old 2010-09-25, 11:32   #8
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Here are some total times for Wagstaff tests on K10 computers:

LLR 3.8.1 -- 43011.812 seconds
LLR 3.8.2 -- 33774.899 seconds
speed increase 27.34%

LLR 3.8.1 -- 48203.240 seconds
LLR 3.8.2 -- 38311.809 seconds
speed increase 25.81%

Thanks George and Jean
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Old 2010-09-25, 12:52   #9
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Quote:
Originally Posted by Jeff Gilchrist View Post
If you are only building 32bit Windows binaries, is there a reason you haven't upgraded to Visual C++ 2010 Express which is free?
http://www.microsoft.com/express/Windows/

Jeff.
Visual Studio Express has a number of restrictions, such as the inability to build certain types of applications. Ones using a GUI are one of them.
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Old 2010-09-25, 13:26   #10
Jean Penné
 
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Quote:
Originally Posted by Jeff Gilchrist View Post
If you are only building 32bit Windows binaries, is there a reason you haven't upgraded to Visual C++ 2010 Express which is free?
http://www.microsoft.com/express/Windows/

Jeff.
Thank you for the info, I did not know that. However, I could not install it on my current development machine which has an old Windows 2000 OS...
I am now installing it on a machine having a Windows Vista OS, and I hope it will be possible for me to use it for future developments of my programs.

Regards,
Jean
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Old 2010-09-25, 13:32   #11
henryzz
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Is there any plans for a 64-bit LLR? According to
Quote:
Originally Posted by rogue View Post
Already in progress. In fact I am working on a 64-bit build, which is even faster than the 32-bit build of v26.2.
pfgw is expected to get some improvement from this with v26.2. Another speedup if available would be great.
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