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METHOD TO REDUCE THE WIRELENGTH OF ANALYTICAL PLACEMENT TECHNIQUES BY MODULATION OF SPREADING FORCES VECTORS
METHOD TO REDUCE THE WIRELENGTH OF ANALYTICAL PLACEMENT TECHNIQUES BY MODULATION OF SPREADING FORCES VECTORS
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机译:通过展布力矢量的调制来减少分析布置技术的灵活性的方法
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摘要
A method of force directed placement programming is presented. The method includes: assigning a plurality of objects from a cell netlist to bins; shifting the objects based on the bins; computing a magnitude of a spreading force for each object of the plurality of objects based on the shifting; sorting the objects based on the magnitude of the spreading force of the objects; selecting a subset of the sorted objects based on a threshold value indicating at least one of a top percentage, a threshold force, and a threshold value that is based on a placement congestion; adjusting the spreading force of the selected objects to be equal to a predetermined value indicating a minimum spreading force; and determining a placement of the objects based on adjusted spreading force of the selected objects.
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