Hi, On a Ryzen 1800x which has 8 cores and 16 threads, when I run "mpirun -np 16 lammps..." I get an error that there is not enough slot. It seems that --oversubscribe option will fix that.
Odd thing is that when I run "mpirun -np 8 lammps" it takes about 46 minutes to complete the job while with "mpirun --oversubscribe -np 16 lammps" it takes about 39 minutes. I want to be sure that I "-np 16" uses are logical cores. Is that confirmed with --oversubscribe? Regards, Mahmood
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