[gmx-users] cpu/gpu utilization

Mahmood Naderan nt_mahmood at yahoo.com
Mon Feb 26 20:02:18 CET 2018


While the cut-off is set to Verlet and I run "gmx mdrun -nb gpu -deffnm input_md", I see that 9 threads out of total logical 16 threads are running on the cpu while the gpu is utilized. The gmx also says

No option -multi
Using 1 MPI thread
Using 16 OpenMP threads 

I want to know, why 9 threads are running? 
Is that normal? Ryzen 1800x has 8 physical cores. 


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