Quote Originally Posted by audiofreak View Post
One very important thing to note:

You will have to have (at least) two NVIDIA GPUs in your system to run SuperPI or any other CUDA applicaton on a GPU for more than 5 seconds.

Primary display adapter in Windows cannot work under full load for more than 5 seconds without the task being aborted by the operating system because the OS assumes that the driver has got stuck.

Such a limitation does not apply to the secondary adapter. Therefore, you will be able to use only secondary adapter for running any CUDA applications which take more than 5 seconds to complete their workload.

That means you will have to invest in a dual PCI-Express x16 mainboard and into another NVIDIA card, even if it is only 9600GT (or cheaper) for the primary display adapter.

And when you are already investing, why not go SLI? That way NVIDIA sells two cards and a mainboard chipset. Nice way of to boost the sales.

Some of you already have SLI, and some may want to get it because of this "exciting" announcement so a word of warning to you:

1. You won't be able to run CUDA applications with SLI enabled EVER. Each CUDA application must manage multiple GPUs on its own.

2. Multi-GPU CUDA applications require that each GPU thread be associated with a distinct CPU thread. It means that for maximum performance on a Quad GPU setup you would need Quad-Core CPU as well.
ewwwwww....

thats not good,,,,
pi doesnt run full core % though maybe we'll be ok.. (atleast it doesnt for CPU)
still an interesting twist

that would be a neat tool since you touched on it, a GPU based task manager... something to show GPU load, processes and memory usage.

someone get on that lol...