Extend power.tcl to check the power reporting procedure for acceptable numbers

[oharboe]

Description

Start simple, define some smoke-test level criterea for "it worked" and create a PR to update https://github.com/The-OpenROAD-Project/OpenROAD-flow-scripts/blob/master/flow/designs/asap7/mock-array/power.tcl with that check(print error and exit 1).

Perahaps require some factor of difference for the relevant cases below. Is there an OpenSTA .tcl interface that can be used? Didn't find anything in the manual...

Later on as usage and understanding becomes more sophisticated, the regression tests can be refined.

To run:

make DESIGN_CONFIG=designs/asap7/mock-array/config.mk final simulate power

At the end make power outputs something like:

Found 1288 unannotated drivers.
Found 7560 partially unannotated drivers.
Group                  Internal  Switching    Leakage      Total
                          Power      Power      Power      Power (Watts)
----------------------------------------------------------------
Sequential             4.14e-01   1.16e-01   6.43e-06   5.30e-01  59.1%
Combinational          1.24e-01   1.00e-01   4.57e-06   2.25e-01  25.0%
Clock                  6.87e-02   7.36e-02   6.51e-07   1.42e-01  15.9%
Macro                  0.00e+00   0.00e+00   0.00e+00   0.00e+00   0.0%
Pad                    0.00e+00   0.00e+00   0.00e+00   0.00e+00   0.0%
----------------------------------------------------------------
Total                  6.07e-01   2.90e-01   1.16e-05   8.97e-01 100.0%
                          67.7%      32.3%       0.0%
Annotated 217546 pin activities.
Group                  Internal  Switching    Leakage      Total
                          Power      Power      Power      Power (Watts)
----------------------------------------------------------------
Sequential             1.70e+00   7.59e-01   6.46e-06   2.46e+00  60.0%
Combinational          8.28e-01   6.65e-01   4.75e-06   1.49e+00  36.5%
Clock                  6.87e-02   7.36e-02   6.51e-07   1.42e-01   3.5%
Macro                  0.00e+00   0.00e+00   0.00e+00   0.00e+00   0.0%
Pad                    0.00e+00   0.00e+00   0.00e+00   0.00e+00   0.0%
----------------------------------------------------------------
Total                  2.59e+00   1.50e+00   1.19e-05   4.09e+00 100.0%
                          63.4%      36.6%       0.0%

Suggested Solution

Print error and exit 1 on unacceptable result in power.tcl

Additional Context

No response

[maliberty]

I don't see anything either so I'll open a request to sta

[socclosure]

@tspyrou / @maliberty

Do you want me to look into this issue for my first contribution to open Road project?

[maliberty]

@socclosure I don't think this is a good candidate as the problem is in sta itself. We do label good first issues. Perhaps The-OpenROAD-Project/OpenROAD#4041 ?

[socclosure]

@maliberty Make sense. Thanks for information. I will look into Good first issues to start the contribution.

[akashlevy]

Try sta::design_power [sta::cmd_corner]. You can replace sta::cmd_corner with sta::find_corner <corner> for a particular corner