Possible bug: Cant find all my Cuda cores?

[pckmark]

Hey Hmm, is this the right place to report bugs?

I am using the 260.19 Nvidia driver (not developer driver), and the cuda toolkit 3.0.

No matter what version i use, Octane only finds 125 cores, and i am pretty sure that i were supposed to have access to 192 of them.

http://www.nvidia.com/object/product-ge ... 50-us.html <--- gts 450 page

[pckmark]

btw, it is a gainward "golden sample", so it is clocked a bit higher than on the nvidia page.

[Lutze]

Hey Hmm, is this the right place to report bugs?

I am using the 260.19 Nvidia driver (not developer driver), and the cuda toolkit 3.0.

No matter what version i use, Octane only finds 125 cores, and i am pretty sure that i were supposed to have access to 192 of them.

http://www.nvidia.com/object/product-ge ... 50-us.html <--- gts 450 page

Is is the same with me. 3.0 Developper Drivers and Toolkit with my Quadro 2000 (192 cores) and only 125 are seen and used by octane. I believe the Quadro 2000 and GTX 450 are the same cards under the hood.

Very strange...

Lutze

[face]

Maybe thats the cuda bug.
With the release of Octane v6 with cuda 3.2 it should be ok...

face

[matej]

I think that 450 is based on the same chip as 460 (GF 104), so it suffers from the same problem as 460 - ie. only 2/3 of cores are currently usable.

We will have to wait for Octane with CUDA 3.2, which will address this.

[pckmark]

Never knew these cards were this close, very interesting card you have though. Never really read up on what makes the quadro cards different.

Thanks for the info everyone, now i am calmer Thought maybe something was wrong with this card. It does really get punished sometimes!

[radiance]

The next 5b release will use cuda 3.2 and support GF104 chips's 1/3rd missing cores.

Radiance

[matej]

ho! ho! ho!

[bepeg4d]

very very good news, should we expect a 64 bit mac version also?

ciao beppe

[pckmark]

Oh, very glad to hear that! I know its probably not much, but still i am very anxious too see how much faster octane gets for me in the next version.

So, Thanks

-Mark