Texture Memory and Emulation Mode

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi!

I have code which runs perfect in device-mode but it doesn’t give the right results in the emulation mode.
When I debug my program, it seems that when I read from the texture memory something goes wrong.
I want to use emulation to debug but unfortunately the code doens’t work :unsure:

I get the problem on several os’es and several nvidia cards…

Has anyone got the same problem and knows how to solve it?

Greeting,
Johannes

2

There shouldn’t be any problem. Emulation mode emulates textures, too. Can you narrow down the issue to a very small reproduction case that you can post here?

Here is another possibility. Are you taking advantage of syncthreads()-less syncing between threads in a warp anywhere? In emulation, the warp size is one so this often results in big differences between device and emulation.