Creo ModelCHECK > config_init_options > DIR_REPORT
  
DIR_REPORT
<directory path>
Specifies the path to a directory in which Creo ModelCHECK , including ModelUPDATE, reports are to be written. If the specified directory does not exist or is specified incorrectly, reports are placed in the directory from which Creo Parametric was started.
If Creo ModelCHECK is running on a server and is used by many clients, it is suggested that each user have his or her own report directory. To do this, create a directory called mc_reports as a subdirectory of your home directory. Then set the DIR_REPORT configuration option to $HOME/mc_reports.
To optimize Creo ModelCHECK for speed, place the directory specified by the DIR_REPORT configuration option on your machine.
The reports generated in the ModelUPDATE mode have mu as a part of the filename.
 
* This option is used only if the DIR_REPORT_NT or DIR_REPORT_U configuration options are not set.