[mohamed_]

My Environment:
Windows 7 x64
Intel Core i7 2630
8GB Memory

FLUENT 14.5

Parallel FLUENT works well, and runs for say 21 iterations when it suddenly exits and I get this cortex error.
FLUENT create cortexerror.log file:

Parallel FLUENT received fatal signal ()
1. Note exact events leading to error.
2. Save case/data under new name.
3. Exit program and restart to continue.
4. Report error to your distributor.

I closed the program and tried again and it runs for only 21 iterations, I retried over and over and every time it stops after 21 iterations.
and I keep getting the same error.

I tried Serial FLUENT but no such error occurred.
so I guess its local to Parallel Fluent>

I Appreciate any help on this problem.

[msaeedsadeghi]

have you used a UDF?