markdown/gh_discussions/Runtime/3014.md

Hold wns resulting infinite

Tool: OpenSTA

Subcategory: Timing analysis issue

Conversation

khaledhasanzami

I was running the riscv model with default setup. When I was trying to find wns for hold after the full run (or in cts, route). It is returning as INF.

Command:

report_worst_slack -min

Returns worst slack INF

pdk: asap7 design: riscv32i

Any idea why is that and how to solve it?

maliberty

In which PDK? How did you load the design? Please give specific steps to reproduce the issue.

maliberty

I guess you meant make gui_6_final.odb without the 'e'. I get:

>>> report_worst_slack -min
worst slack 40.29

What commit id are you using for OR & ORFS? This would have worked better as an issue with the required info.