Check PLIO placement to see if it is causing routing congestion. The most common congestion area for router is in the interface tile region. The device has two more incoming/outgoing stream channels for PLIO than the interface tile has connections going into the AI Engine array.
- If PLIOs are being constrained make sure adequate resources into the AI Engine array are open to handle the locked PLIOs.
- If possible limit PLIO placement near shadow regions to decrease congestion of routing resources.
- Check PLIO placement/constraints to verify that crossing such as
shown in the following image is not occurring.
