does anybody know whether I can disable cores in a CUDA run.
Problem is, I have a rather old 8600GT with 32 cores and a GTX280 with 240 cores.
My App runs 8.5 times faster on the second one.
Seems resonable for 7.5 times more cores and better coalesced read/writes.
BUT: I just found out, memory access is 7GB/s on the older one and 110GB/s on the new one.
Now I would like to know what part of the speed-up is done by the faster gloabal memory access and what by the increase of cores.
If I could restrict the GTX280 to use only 32 cores I could get a figure!
Any ideas how to do this… or to solve my problem otherwise?
Thanks and Cheers,