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The-OpenROAD-Project / OpenROAD

OpenROAD's unified application implementing an RTL-to-GDS Flow. Documentation at https://openroad.readthedocs.io/en/latest/
https://theopenroadproject.org/
BSD 3-Clause "New" or "Revised" License
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Make info message more actionable `[INFO GPL-0100] worst slack -1.54e-09` #5203

Closed oharboe closed 2 days ago

oharboe commented 1 month ago

Description

What is OpenROAD trying to tell me here?

Is OpenROAD trying to tell me that removing -timing_driven could speed things up?

For architectural exploration, I initially want fast turnaround time with less accurate results.

[INFO GPL-0100] worst slack -1.54e-09
[INFO GPL-0103] Weighted 41603 nets.

Suggested Solution

Make the error message more actionable.

Additional Context

No response

gudeh commented 4 weeks ago

Hi @oharboe, this message is not an error message actually. This is printing the worst slack after calling repair design with resizer. Maybe we should transform this into a debug message.

oharboe commented 4 weeks ago

@gudeh Understood. However, it may be useful for the user to know that they can relax the optimization target to improve running times. If message can be rearticulated to communicate this, it would be helpful.

maliberty commented 4 weeks ago

It seems that having some document or global options on fast analysis is better than sprinkling hints throughout the log

oharboe commented 4 weeks ago

@rovinski Had an idea to collect data on running times vs quality of results and creating a tool that recommended options?

gudeh commented 2 days ago

I am closing this issue. I am currently working on the timing driven mode in global placer, which is what generates the mentioned logs. We should have further modifications on timing driven in the near future.