The SLR Net Crossing Reporting is only applicable to SSI Devices and reports the number of nets contained in a module that cross the SLR boundaries. For each module, the table provides further details of which SLRs are crossed by the nets. The following figure shows an example of the SLR Net Crossing Reporting table.
When analyzing the SLR Net Crossing Reporting Table of your design for Congestion and Timing QoR, look for the following:
- When using SSI Devices, the SSI placement directives can be beneficial for both timing and congestion.
- If a particular module that is crossing SLRs is consistently experiencing timing issues across multiple implementation runs using various placement directives, attempt light Pblocking to constrain the module to a single SLR.