GPU Utility Percentage

We have a Dell PowerEdge R730 Server with Ubuntu 16.04. The server had 2X P100 cards. Cuda
version 9.1 was installed.

I am running a Molecular Dynamics Simulation with Gromacs package.

I have observed that the P100 cards are showing 20-30% utility percentage only.

Why the cards are not able to provide max utility performance? How I can optimize it further?

Please find in the attachment, the output of nvidia-smi:

Thank You

Not enough cpu power to feed two P100? i.e. how high is cpu utilization during computation?

Thank you for your response.

The CPU utilization is always 99% to 100%.

If that’s on all cores, the application is cpu bound so only more cpu cores will help.