Even I am facing the same issue. I am particularly specifying to run in serial but it starts in parallel. When I compile my UDF , I receive the following error when I try to build the UDF,


Error at Node 0: The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform (win64).

The system cannot find the path specified.


F:trialnext2d_filesdp0FLUFluentlibudfwin642ddp_nodelibudf.dll "



When I try to load  it shows the following error 








** WARNING: Automatically switched to run in parallel -t1 mode. **


** Detected non-parallelized UDF usage, enabling parallel usage. **


** If you encounter any issues, please re-run with -t0 flag. **




****************************************************************************Creating user_nt.udf file for 2ddp_host ..."


How to implement the above mentioned setting with -t0 flag?


I hereby attach the screenshots for your perusal.

Kind regards,