LLR V3.8.2 using gwnum 26.2 is available!

Jean Penné · 2010-09-23, 20:21

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

Jeff Gilchrist · 2010-09-24, 14:13

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.

rogue · 2010-09-24, 14:26

Quote:

Originally Posted by Jeff Gilchrist

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.

Jean Penné · 2010-09-24, 14:31

Quote:

Originally Posted by Jeff Gilchrist

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

Jean Penné · 2010-09-24, 19:13

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

Prime95 · 2010-09-24, 21:18

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.

Jeff Gilchrist · 2010-09-25, 10:34

Quote:

Originally Posted by Jean Penné

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.

paulunderwood · 2010-09-25, 11:32

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

rogue · 2010-09-25, 12:52

Quote:

Originally Posted by Jeff Gilchrist

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.

Jean Penné · 2010-09-25, 13:26

Quote:

Originally Posted by Jeff Gilchrist

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

henryzz · 2010-09-25, 13:32

Is there any plans for a 64-bit LLR? According to

Quote:

Originally Posted by rogue

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.

2010-09-23, 20:21	#1
Jean Penné May 2004 FRANCE 3×5×41 Posts	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

2010-09-24, 19:13	#5
Jean Penné May 2004 FRANCE 3×5×41 Posts	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

2010-09-24, 21:18	#6
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 2³×1,021 Posts	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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
GWNUM program	paulunderwood	Programming	54	2021-02-10 12:46
A possible bug in LLR/PFGW while using GWNUM (no bug in P95)	Batalov	Software	77	2015-04-14 09:01
GWNUM?	Unregistered	Information & Answers	3	2010-09-12 19:52
GWNUM as DLL?	Cyclamen Persicum	Software	1	2007-01-02 20:53
GWNUM library	bearnol	Software	6	2006-02-24 11:19

2010-09-24, 14:13	#2
Jeff Gilchrist Jun 2003 Ottawa, Canada 3·17·23 Posts	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.

2010-09-25, 11:32	#8
paulunderwood Sep 2002 Database er0rr 1000110010000₂ Posts	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