Utilization tracking can be used to detect whether the compiler usage exceeds your entitlement based on the number of Concurrent User licenses you have purchased.
Utilization tracking is disabled by default. You can enable it by modifying the entry -qnoenabletracking to -qenabletracking in the utilization tracking configuration file, urt_client.cfg. Various other aspects of utilization tracking can also be specified in this file. In each installation of the compiler, there is a symlink named urt_client.cfg that points to the utilization tracking configuration file. You might need to change the symlink if you use a copy of the utilization tracking configuration file in a different location or if you use multiple copies of the file. For more information about utilization tracking, see Configuring utilization tracking in the XL C/C++ Compiler Reference.