| # report_worst_slack returns INF | |
| Tool: OpenSTA | |
| Subcategory: Timing analysis issue | |
| ## Conversation | |
| ### xiaosinju | |
| I have run the following script: | |
| ``` | |
| read_lef ispd19_test6.input.lef | |
| read_def ispd19_test6.input.def | |
| set thread_count 8 | |
| global_route | |
| detailed_route | |
| write_db route.db | |
| report wns | |
| >> wns 0 | |
| report tns | |
| >> tns 0 | |
| report worst_slack | |
| >> worst slack INF | |
| ``` | |
| Did anything go wrong? How can I get correct metrics? Thanks a lot! | |
| ### vijayank88 | |
| Do estimate parasitic and then report the metrics. Refer here: https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/test/flow.tcl#L264-L280 @xiaosinju | |
| ### maliberty | |
| This is a routing test case and has no timing information (no .lib or .sdc). What are you trying to accomplish? | |