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grep

thevansakthi

hi

i need to know how to grep only the negative  slack value from the report

  • There's probably a better way than grep. Try "calNegSlack" or "get_metric timing.setup.WNS.reg2reg" for example. 

  • Hi,,,Bob

    calNegslack is very useful to see WNS..

    However using that command, One is unable to see beginpoint and endpoint of violated path.

    I think So its better to grep negative slack only so that one can see begin and endpoint.

    Or If this can be done using any other command then please let me know.

     

    Thanks,

    Chirag Maniya

  • I find that parsing the .mtarpt.gz file that is used for the timing debug is the easiest  way to get simple start,  end,  slack reports.

    report_timing -machine_readable -max_points 50000 -max_slack 5.00   > ${DATE}/${DESIGN}_2_preCTS/${DESIGN}.mtarpt.gz

     gzip -cd *.mtarpt.gz | egrep "BEGINPT |ENDPT |SLK |PATH " | egrep -v " END_LAUNCH_CLK_PATH| DATA_PATH|END_PATH" >! END_BEGIN_SLK.summary

     Shawn

     

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