Jump to content
cojoMan

SLI for openCL

Recommended Posts

Ya - the proprietry stuff is a bit scary - i.e. today's Apple Security update for OsX 10.10.2 has disabled the GTX 980 Web drivers and the card no longer works. S

 

o whilst I wait for the Nvidia to update those, the AMD backup card and dual Xeon CPUs cannot run Octane.... if I was relying on it.... 

Share this post


Link to post
Share on other sites

Speaking of which, I have an old Windows Vista box at home, and last month, a security update broke *font* rendering. All my Arial font text had this 50% dithered look.

Share this post


Link to post
Share on other sites

but how does a CPU core scale to a GPU one ?

because I am guessing it's not one-to-one....and I see GPUz out there with smth crazy like 512 cores...and that would just laugh at my 6 core machine :))

 

Starting to dig more properly into GPUs, apparently the so-called core count to compare them to CPU that we all use is a pretty good marketing piece. The GPU Compute Unit is more analogous to a CPU core. i.e. the GTX 960 has ~2000 cores but only 16 Compute Units. When data is processed is has to use a complete Compute Unit as one, therefore the it is comparable to a CPU core.

 

http://devgurus.amd.com/thread/166930

 

 

"GPU marketing literature often uses the term "GPU core" or equivalent. This is essentially a single precision (32-bit) ALU or equivalent. By this definition, an 8-core Sandy Bridge with AVX instructions has 64 GPU core-equivalents."

 

https://www.pgroup.com/lit/articles/insider/v5n2a1.htm

Edited by marty

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×