Got CUDA to work... But now one of my CPU cores is disabled?

[jackjohnson64]

Pyrit took advantage of both my CPU cores before I got CUDA working. Now that it’s enabled, only one of my CPU cores is working. It’s still tons faster using just one core + my GPU, though the additional 650 PMKs that one core put out would be nice.

Is this just the way pyrit/CUDA works or is there hope to use both cores?

[spiers]

I think thats just how it worked. Only uses 3/4 cores on my system, but its all about GPU cores, im sure your graphics card is a lot better at crunching than your CPU?

If you run Pyrit im sure you will notice lag when trying to do anything else. I imagine using all the CPU cores would make the system to unstable.

A quote from a webpage i Googled, its using a different program but still Cuda.

"One core is always used to keep track of what the GPU does."
Cuda not using all my proc cores

[AlphaandOmega]

When you are using Cuda, for each GPU being used, one CPU core is used. Somewhere, I can't recall where but PureHate mentioned this, either in one of his many tutorials, or in a posting somewhere.

[Renek]

Well isn't that what you wanted when you installed CUDA? To offload the processing work to your GPU? Doing some quick research (which can always be done by yourself in the future) it looks like Pyrit uses that one core to chat with the GPU and coordinate who is doing what. You can read more about it there.

[jackjohnson64]

I think thats just how it worked. Only uses 3/4 cores on my system, but its all about GPU cores, im sure your graphics card is a lot better at crunching than your CPU?

If you run Pyrit im sure you will notice lag when trying to do anything else. I imagine using all the CPU cores would make the system to unstable.

A quote from a webpage i Googled, its using a different program but still Cuda.

"One core is always used to keep track of what the GPU does."
Cuda not using all my proc cores

Yup my GPU puts out about 2300 pmk + 650 from one of my CPU cores.

Does every GPU need its own dedicated core (ie if I had 3 GPUs would 3 of 4 cores in a quad core be used for managing them?)? Or does one core manage several GPUs?

Ty all for answering

[spiers]

Yup my GPU puts out about 2300 pmk + 650 from one of my CPU cores.

Does every GPU need its own dedicated core (ie if I had 3 GPUs would 3 of 4 cores in a quad core be used for managing them?)? Or does one core manage several GPUs?

Ty all for answering

Not quite sure on that but id love to run 3 GPU's.
Pureh@te here gets 100,000 PMK/s with his four GTX 495.

His build pics are here

Cuda Cruncher