Signal 9 error during xpecfem run

Hi everyone!

I keep getting this message when running xgenerate_databases on 4 processors on my computer mica

Mpirun noticed that process rank 1 with PID 0 on node mica exited on signal 9 (Killed)

I have recalculated the courant number, time step, and double checked the Par_file. I am unsure where to turn next and any useful direction would be greatly appreciated.

Thank you,

Katrina Burch