It Normal effect?

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi All,

When I doing this setings:

dim3 dimThreads(1,1,1)
dim3 dimBlock(1,1,1)

DATA SIZE = 36byte.

I’m getting speed for kernel: 269msec

When settings:
dim3 dimThreads(10,10,1)
dim3 dimBlock(1,1,1)
DATA SIZE = 36*100byte.

I’m getting speed for kernel: 168.866msec

It normal?

2

This is normal; I wouldn’t expect to get precise timings for such a small workload in your first example.