GTX 460 superclocked

[Frizz]

I have such a setup running too

Successfully? What OS/Catalyst ? I failed to launch such config because ATI's lack of support for Win 2003 Server OS, Claggy had bad failures for different apps when both GPUs installed... Interesting what makes your config so successful

- Windows 7 x64
- Catalyst 10.6
- GeForce 257.21

I have a GT240 and a HD5770.

It was a pain in the ass to get it running, since the GT240 had to be in PCIe slot 0 and the HD5770 in slot 1 - the other way round didn't work. Catalyst had to be installed first, then GeForce, ... etc.  ... so trial and error.

http://setiathome.berkeley.edu/hosts_user.php?userid=8395885

[Josef W. Segur]

...
There is an exact threshold above which is considered VHAR, and that makes shorties.  I forget exactly what that threshold is, around 1.1 I think.  Joe keeps that kind of information around here  .  Above that, whatever it is, they all tend to take pretty much the same short time to process.

<pot_max_slew>*<nsamples>/<sample_rate>

1.12742890 or thereabouts is the maximum AR at which Gaussian searching is done, so that's still midrange. At 1.12742891 AR, Gaussians are gone along with a lot of FFTs done only for them.
                                                                                   Joe

[TouchuvGrey]

July 27, 2010

Architecture:     GenuineIntel Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz [Family 6 Model 26 Stepping 5]
OS Details:     Microsoft Windows 7 Home Premium x64 Edition, (06.01.7600.00)
Number of CPU's:     8
Created:     Sat, 26 Dec 09 17:11:17 -0700
Timezone:     GMT -5
Floating Point Speed:     2,260.79 million ops/sec
Integer Speed:     8,033.70 million ops/sec
Memory Bandwidth:     125Mbit/sec
Ram:     11.99Gb
Cache:     256.00Kb
Swap:     23.98Gb
Disk Total:     419.93Gb
Disk Free:     356.30Gb
Ave Upload Rate:     10.80 Kb/sec
Ave Download Rate:     52.21 Kb/sec
Ave Turnaround:(tbf)     365,377.22
cpid:    a23269cdfd792a32f4cdad5ec3412d55
Rank:     2,320
Last Update:     12,874
7 Day Average:     12,625
Last 7 Days:     101,245
Last 28 Days:     286,597
RAC:     11,973
Coprocessor:     0 x 6.10.56CUDA with 2 (BOINC)

August 15, 2010

Architecture:     GenuineIntel Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz [Family 6 Model 26 Stepping 5]
OS Details:     Microsoft Windows 7 Home Premium x64 Edition, (06.01.7600.00)
Number of CPU's:     8
Created:     Sat, 26 Dec 09 17:11:17 -0700
Timezone:     GMT -5
Floating Point Speed:     2,597.84 million ops/sec
Integer Speed:     6,304.23 million ops/sec
Memory Bandwidth:     125Mbit/sec
Ram:     11.99Gb
Cache:     256.00Kb
Swap:     23.98Gb
Disk Total:     419.93Gb
Disk Free:     346.69Gb
Ave Upload Rate:     13.36 Kb/sec
Ave Download Rate:     7.53 Mb/sec
Ave Turnaround:(tbf)     852,254.82
cpid:    a23269cdfd792a32f4cdad5ec3412d55
Rank:     1,987
Last Update:     7,648
7 Day Average:     8,826
Last 7 Days:     69,429
Last 28 Days:     310,103
RAC:     10,372
Coprocessor:     0 x 6.10.58CUDA with 2 (BOINC)

     It seems as if the GTX460 is doing less than the GT220 was. Floating point speed is up
while integer speed is down.

[Josef W. Segur]

The "Floating Point Speed:" is merely BOINC's somewhat mangled version of the Whetstone benchmark, similarly "Integer Speed:" is a Dhrystone benchmark. They test CPU only and are run with crunching suspended, so the GPU has no effect. They cannot turn off anything non-BOINC which is running, of course, so quite a lot of variability is normal particularly on multicore CPUs. You might want to try rerunning them a few times just to see how much variation is normal for your system, in BOINC 6.10.58 the Advanced menu has the needed item.
                                                                                   Joe

[TouchuvGrey]

GPU-Z  0.4.5 shows CUDA to not be available og my GTX-460, nor is
DirectCompute 4.0. It shows both ARE available on my GTS 250.
Any thoughts or suggestions will be greatly appreciated.

[Jason G]

Any thoughts or suggestions will be greatly appreciated.

Hi,
   Still no Cuda documentation detailing these directly from nVidia in the last SDK.  You would have to ask the makers of GPU-Z what interface they use to query the device and  drivers. My guess is nVidia's driver API.  Since there's only one driver listed on nVidia's site for that card, it's doubtful IMO that it's mature and completely bug free for them.

On the GTX 460 in general: Some technical questions I had over these cards have slowly had some answers clarified from articles here and there.  These namely involve the changed Cuda core geometry in GF104 over GF100.  Thankfully the extra cores, 48 instead of 32 per multiprocessor, which would have been difficult to program for requiring extensive code modification, are a hardware optimisation for superscalar execution (instruction level parallelism), so will run  Fermi optimised kernels without needing special ones as I feared when I first heard those numbers.  Looks good, for programming purposes it seems to me these should probably be treated as 32 cores per multiprocessor, but theoretically up to 50% faster by superscalar execution. so the math works out the same if we just call it 48  .  It's just a way of cramming in and using more cores effectively without having to get everyone to rebuild their Fermi software, or duplicate other components on die only to sit idle.  It'll take a while yet before any of these cards,( GF100 & GF104) can be used to their full potential.

Jason

[TouchuvGrey]

Given what we do know about the GTX 460, what application will
put it to use best ?

[Jason G]

Cuda 3.0 build of x32f (seeing as you're a squire).  Probably 2 instances per Fermi card at a time.

[Ghost0210]

GPU-Z  0.4.5 shows CUDA to not be available og my GTX-460, nor is
DirectCompute 4.0. It shows both ARE available on my GTS 250.
Any thoughts or suggestions will be greatly appreciated.

I get the same on the 465 with GPU-Z, no cuda, no DirectCompute 5.0 But do have OpenCL available

[MarkJ]

I get the same on the 465 with GPU-Z, no cuda, no DirectCompute 5.0 But do have OpenCL available

Seems okay on mine (GTX460). Shows as having all the boxes ticked down the bottom. Did you get this on the machine with mixed cards?

[Ghost0210]

Seems okay on mine (GTX460). Shows as having all the boxes ticked down the bottom. Did you get this on the machine with mixed cards?

Yes, its currently got the GTX 465 and a HD5670 in it. Admittedly I've uninstalled PhysX, so I'm not expecting that to show up (possible issue with runnnig Raistmers CPU/GPU AP build) but not really sure why CUDA atleast isn't showing up

[Frizz]

I get the same on the 465 with GPU-Z, no cuda, no DirectCompute 5.0 But do have OpenCL available

I have a "mixed" system with ATI + NVIDIA too. GPUZ seems to have problems with this. Have you tried something like "GPU Caps Viewer" instead?

[Ghost0210]

I have a "mixed" system with ATI + NVIDIA too. GPUZ seems to have problems with this. Have you tried something like "GPU Caps Viewer" instead?

Thanks, have just downloaded this - lot more information available in Caps Viewer - now seeing CUDA is available on the 465
Looks like a bit of a better app than GPU-Z for mixed systems

[TouchuvGrey]

Downloaded installed and ran  Caps Viewer. More puzzled than ever.

GTS 250
Compute Capability 1.1
Shader Clock 1836 Mhz
MulitiProcessors 16
Warp Size 32
Grid Size 65535 x 65535 x 1
Block Dim 512 x 512 x 64
Thread/Block 512
Registers/Block 8192

GTX 460
Compute Capability 2.1
Shader Clock 810 Mhz
MulitiProcessors 7
Warp Size 32
Grid Size 65535 x 65535 x 1
Block Dim 1024 x 1024 x 64
Thread/Block 1024
Registers/Block 32768

Can someone explain to me ( in small words please )
just what i'm seeing and what it means ?

[HSchmirPo]

Can't explain, but  - hey - it looks funny !