When trying to launch FLUENT in network parallel you receive the following error: /ansys_inc/v120/fluent/fluent12.0.16/multiport/mpi_wrapper/bin/mpirun.fl: line 1941: default_run: command not found.

This is the result of not having the FLUENT installation directory exported and accessible by all compute nodes. This is usually and most efficiently done by installing FLUENT on one system and exporting the file system to the other nodes. In order to export or share a directory you need to edit a file called /etc/exports. The file /etc/exports serves as the access control list for file systems which may be exported to NFS clients.The client computers need to mount the file system using the mount command or /etc/fstab file Read the man page for more information: Type: man exports.

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