Cortex received a fatal signal (ILLEGAL INSTRUCTION)

Comments: When starting FLUENT or TGRID on an AIX 5.2 system, the Cortex process fails to start and gives the message:

Error: Cortex received a fatal signal (ILLEGAL INSTRUCTION).
Error Object: ()
Resolution: Set the: nofiles (descriptors) limit to less than 32000

Check it with the command:

ulimit -n

If it is set to over 32000 or unlimited reset with the command:

ulimit -n 30000

Try FLUENT or TGRID again. You may want to put this command in your:

.profile or .login file.

If you still have trouble, send the output of:

ulimit -a

to your local Installation Support Specialist. Email addresses listed at the bottom of this page:

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