Can I chose the number of GPU core to use?

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi people, I want say if I can chose the number of GPU core to use or if is automatic scalable. Thank you :)

2

only if u have SLI and u don’t want to use first or second cards cuda cores.
maybe u can turn of some of cores by remaking bios, but i never tryed that.

3

Then if I have a Tesla S2050 with 448 core for GPU, the CUDA program to exploits all the core??

4

Automatically scalable. It will fill the gpu if it is needed.

5

Hi,

i am new to cuda , just read this topic mentioned here…hence thought to ask my doubt…hope you people don’t mind.

if in a code ,i have max number of threads and blocks that my card can support then is all my cores utilized…or it depends on the operation?

6

Depends on the operation. There is the theoretical occupancy which depends on the resources used (registers, shared memory, etc…). For me the only criteria to how I choose the grid of blocks and threads is how fast does it finish.