Contents

1

Congestion Analysis Task Assistant

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Getting Started

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What is Congestion Analysis?

What are the prerequisites for running congestion analysis?

How do I open the Congestion Analysis Assistant?

Is there a workspace available for congestion analysis?

How do I use the Congestion Analysis assistant?

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How do I run congestion analysis on a design?

How do I view congestion in a design?

How do I visualize congestion data in a heat map?

How do I visualize congestion data in the histogram?

How do I visualize congestion in the Global Cell Track Utilization table?

How do I analyze congestion in a design?

How do I analyze congestion by using the filtering modes?

How do I analyze congestion by filtering the histogram?

How do I analyze congestion by filtering the layers?

What tasks can I perform using the Congestion Analysis assistant?

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How do I customize the histogram to display the most congested ranges?

How do I find the most congested gcells in a design?

How do I identify congestion hot spots in a design?

How do I reset the histogram and heat map to display every gcell?

How do I see gcells with no congestion?

How do I sort the global cell track utilization table?

How do I toggle the display of the heat map?

How do I view the nets selected in the Navigator assistant in the heat map?

How do I use global bias constraints to plan routing?

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How do I create a global bias positive region constraint?

How do I create a global bias negative region constraint?

How do I create a global bias path constraint?

How do I create multiple global bias constraints for specific layers?

How can I assign specific layers for a bias path?

How do I add and remove nets in the Global Bias Setup form?

How do I correct a region created in error?

Can I rename default global bias constraint name to a user-defined name?

What is scenic ratio with respect to congestion analysis?

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How can I view the scenic ratio value for a net?

How can I sort the scenic ratio of nets?

How can I modify the scenic ratio of a net?