Problems with staring parallel ANSYS FluentV18 on a Linux system
 

Hi, everybody.
I am trying to run the Fluent18.0 in parallel mode on CentOS 6.5 Linux platform. The command i used is:" fluent -lsf 2ddp -g -t8 -pic -ssh -i case-2". The attached fig. is the error output.
Moreover, i have tried to add -mpi=openmpi in the command, but it didn't work.
Any tutorial also can help me. Thanks.