Fatal error: Unexpected cudaStreamQuery failure

User discussions
1

GROMACS version:2020.3
GROMACS modification: No
Hi! All,
I have been trying protein-Complex tutorial. Everything went on smooth untill the MD run

gmx mdrun -deffnm md_0_10
got the error as below:

Source file: src/gromacs/gpu_utils/cudautils.cuh (line 260)
Fatal error:
Unexpected cudaStreamQuery failure: unspecified launch failure

I have installed cuda 10.2 for my GPU ( Quadro P620) on Ubuntu 18.04
NVIDIA driver version: 440.33.01

I don’t think it is a problem with gromacs, as i could run the equilibration NVE and NPT, but unable to run only the MD run. I wonder if it is the problem with cuda

Thanks in advance

2

did you solve it ?

3

Hi! Sam,
The issue was solved with a simple change in screen lock time. The problem was due to lesser display time. So I removed the screen lock and got rid of the error

4

thanks for replying and helping. i will try it now

5

Hello, @sam !

I have the similar problem with Gromacs 2020.2 when start calculation on RTX 4090.

Did simple change a screen lock time help you to solve the problem?