"unspecified launch failure"

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi,

I just upgraded to c2050.
When trying to run my application, i get a cuda error of type “unspecified launch failure”.

The same code works just fine on machines with c1060.

Driver version: 258.96

Any ideas anyone?

2

Check your shared memory access. Fermi doesn’t forgive out-of-bounds when accessing shared memory arrays, G80/G92/G200 is more forgiving, unless you overwrite your kernel launch parameters or block and grid size.

3

Indeed a shared memory access violation!

Thanks a bunch!

eldad.