| # estimate_parasitics -global_routing on a post-global_route design loaded via read_db |
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| Tool: Parasitics Extraction |
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| Subcategory: Global routing error |
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| ## Conversation |
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| ### nayiri-k |
| Is it possible to run `estimate_parasitics -global_routing` on a post-global_route design that's been loaded via the `read_db` command? As in, `global_route` has been run on the design before it was saved with `write_db`, but `global_route` has not been run in this current OpenROAD session. I keep getting this error:
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| ```
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| >>> read_db post_global_route
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| >>> estimate_parasitics -global_routing
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| [ERROR RSZ-0005] Run global_route before estimating parasitics for global routing.
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| ``` |
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| ### maliberty |
| @eder-matheus I thought this was possible. Please comment |
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| ### maliberty |
| Are you using a very old version of OR for this? The guides should be saved in the db. |
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| ### maliberty |
| OR improves a lot over time so it is a good practice to test with a current version when you find a problem. |
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