Hello, the flow for my design is fine up to CTS, after that, during post cts the flow is doing buffer insertion, but it errors out because it reaches the buffer limit: [193244] ERROR [RSZ-0060] Max buffer count reached. In the openroad documentation i found that is possible raise the percentage of buffers allowed (repair_timing -> max_buffer_percent). I guess there should be a way to add this in the openlane2 config.json, does anyone here know what would be the equivalent setup for this in the config? (btw, this issue did not appear before, i was able to complete the full flow without issue, but i recently updated my openlane2 git repo and this issue started popping up...)
Jose W Orozco
02/23/2025, 10:59 PM
I found the parameter by grepping the openlane2 scripts: "PL_RESIZER_HOLD_MAX_BUFFER_PCT", there is another similar for routing.
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Vijayan Krishnan
02/24/2025, 6:27 AM
file a github issue with issue_reproducible generated by flow
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