[gmx-users] Problem with mpirun

[Seketoulie Keretsu]

Dear Sir/Madam,

We just installed gromacs 2019 today (MPI compiled) and we're currently
testing the commands with MPI. The installations went fine however,we are
having issues with the commands.

$ echo $PATH
/opt/vmd/1.9.3/bin:/opt/g_mmpbsa/bin:/opt/gromacs/2019.5/bin

However, when we execute the commands we get the following response.

mpirun -np 8 gmx_mpi mdrun -s md_0_10.tpr -o md_0_10.trr -cpi md_0_10.cpt
-c md_0_10.gro -e md_0_10.edr -g md_0_10.log

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 15 PID 23681 RUNNING AT biopo1
=   KILLED BY SIGNAL: 4 (Illegal instruction)
===================================================================================

We get the same error for 'mpirun -np 16 gmx_mpi mdrun -h'  or ' mpirun -np
8 gmx_mpi mdrun -v -deffnm md_0_10'

What are we missing here, please advise.

Sincerely,
Seket