You can use the regular timing or clock network reports to review the clock paths. These reports help identify the situations where two clocks propagate on a same clock tree. A timing path uses the clocks simultaneously. The same clock tree connects the startpoint and endpoint clock pins.
This analysis can be a time consuming task. Instead, you can review the
multiple_clock section of the Check Timing report.
This section returns a list of clock pins and their associated timing clocks.
Based on the clock tree topology, you must apply different constraints as described in the following sections.