global routing cell - understanding

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bx14zz

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Good Morning friends,


I have a tiny question for you:
Astro use the GRC - global routing cells when he starting the global route.
What is the GRC percentage actually means? If I have a total GRC = 0.1% - what is actually describe? How Astro calculate this number?

Thank you in advance,
faeez
 

i think, ur saying about overflow in results of routing
 

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