atomic function for 8600 and not 8800 ? for 1.1 and not 1.0 ???

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi everyone,

There is something here that I don’t understand. It is said in the guide (and seems to be true when compiling) that atomic operations are only available for 1.1 architecture -arch sm_11 and not 1.0 with -arch sm_10…but the 8600 (1.1) is in middle range of G80 gpus and cheeper than 8800 (1.0) ones.
I don’t understand … I have a 8800 as you have understood and need to use atomic functions.
What is the reason ? is it because 8600 GPUs have been released later than 8800 ones ??

Thanks

2

Yes.
We keep adding features to the GPUs. For now, atomic operations are available on the G84 and G86 (not on the original G80).