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Old 2013-08-07, 22:00   #1
Manpowre
 
"Svein Johansen"
May 2013
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Default NVIDIA TITAN 320.59 driver with cuda 5.5

As most of you know, I have a few titan cards, and I started playing around with Cuda 5.5 tonight, and I saw the installation came with driver called NVIDIA RELEASE 320.59.

I immediately noticed a great 20% speed on the Titans. Iteration times from 4.2-4.4 to 3.1-3.2.

I installed accidentally the latest beta GTX driver, and then I was back to the normal level I had before.

Just wanted you all to know, that the Kepler GPUs might have a great performance boost with this driver. I dont know about Fermi cards since I dont have one.

Last fiddled with by Manpowre on 2013-08-07 at 22:07 Reason: error
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Old 2013-08-07, 22:43   #2
kracker
 
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Looks like people are whining and complaining that BF3 and Metro 2033 has lower performance and artifacts. Well, it is beta though is what they don't realize.
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Old 2013-08-07, 23:04   #3
TheMawn
 
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It is interesting to see the differences between hard computing vs graphics. New driver shows 20% increase in computation but adds artifacts and decreases performance. Strange and interesting... Good for us, I guess. Hang onto those drivers.
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Old 2013-08-08, 08:53   #4
Manpowre
 
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Quote:
Originally Posted by TheMawn View Post
It is interesting to see the differences between hard computing vs graphics. New driver shows 20% increase in computation but adds artifacts and decreases performance. Strange and interesting... Good for us, I guess. Hang onto those drivers.
Well the driver is not exactly new. its been there for half a year with cuda 5.5. I can not find that specific driver anywhere on nvidias website. Only the new beta driers and the last approved driver. the betadriver has same performance. its just that the driver that came with cuda 5.5 has a performance boost.

now this is weird.

First I installed Cuda 5.5.. and saw a driver being installed.. and started to playing around with it and code, compiling etc... then I noticed 20% better iteration times.. I thought mabye they did something to drivers and then I installed latest beta. I installed the beta, and measured that, equals the old driver I used. Then I installed cuda 5.5 again and got the driver I got so good results with.. and iteration times were the same as the beta.. what the heck.
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Old 2013-08-08, 09:48   #5
Robert_JD
 
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Well, all I can say from my own personal experience is that the latest released NVIDIA Linux x86_64 driver, which is 325.15, has finally solved the issue of wrong residual outputs on my Asus Titan running Cudalucas 2.03. Previous drivers including the 325.08 beta apparently did not perform as a fully compatible Titan driver, hence the spurious results either on 64 bit DP mode or 32 bit SP.

Edit: Recently installed Cuda 5.5 which seems to run about 5 % faster than Cuda 5.0 :-)

Last fiddled with by Robert_JD on 2013-08-08 at 09:58 Reason: Additional info
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Old 2013-08-08, 10:32   #6
Manpowre
 
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Quote:
Originally Posted by Robert_JD View Post
Edit: Recently installed Cuda 5.5 which seems to run about 5 % faster than Cuda 5.0 :-)
Did you recompile with cuda 5.5 too ? otherwise cudalucas looks for 5.0 dll's. I saw that yesterday when I uninstalled cuda 5.0.
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Old 2013-08-08, 10:56   #7
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Quote:
Originally Posted by Manpowre View Post
Did you recompile with cuda 5.5 too ? otherwise cudalucas looks for 5.0 dll's. I saw that yesterday when I uninstalled cuda 5.0.
Well what I did was install and compile the RPM version of Cuda 5.5 over the 5.0 version.

After that, then I compiled the Cudalucas 2.03 source code, and testing it out, I got an error message concerning missing "libcuda.so" shared libraries. So as a fix, I simply went into ld.so.conf and typed in "/usr/local/cuda-5.5/bin", then "SAVE", and then typed in "ldconfig" at the terminal and the issue was solved.

P.S. I'm currently using Fedora 18.
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Old 2013-08-08, 17:40   #8
Karl M Johnson
 
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Quote:
Originally Posted by Manpowre View Post
I immediately noticed a great 20% speed on the Titans. Iteration times from 4.2-4.4 to 3.1-3.2.
Nice!
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Old 2013-08-09, 00:02   #9
Robert_JD
 
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Quote:
... I immediately noticed a great 20% speed on the Titans. Iteration times from 4.2-4.4 to 3.1-3.2.
I can report similar iteration improvements, from around 4.2 down to a minimum of 3.1350 which is the lowest...
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File Type: txt CudaLucas_Test.txt (4.2 KB, 214 views)
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Old 2013-08-09, 01:01   #10
owftheevil
 
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I'm liking the new Linux driver too.
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Old 2013-08-09, 01:17   #11
owftheevil
 
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Here's the end of stage 2 and the start of stage 1 with CUDAPm1.
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