TIMING DRIVEN ROUTING IN INTEGRATED CIRCUIT DESIGN
First Claim
1. A computer implemented method for timing driven routing in a design of an integrated circuit (IC), the method comprising:
- performing, using a router application executing in a data processing system, a pre-global routing optimization of the design;
setting a plurality of wirelength target constraints on a plurality of subsets of a set of nets in the design;
performing global routing on the design;
adjusting the design using wires placed in the design during the global routing;
assigning a priority to each net in the set of nets; and
performing detailed routing on the design.
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Abstract
A method, system, and computer program product for timing driven routing in a design of an integrated circuit (IC) are provided in the illustrative embodiments. A router application executing in a data processing system performs a pre-global routing optimization of the design. A plurality of wirelength target constraints are set on a plurality of subsets of a set of nets in the design. Global routing is performed on the design. The design is adjusted using wires placed in the design during the global routing. A priority is assigned to each net in the set of nets. Detailed routing is performed on the design.
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Citations
20 Claims
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1. A computer implemented method for timing driven routing in a design of an integrated circuit (IC), the method comprising:
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performing, using a router application executing in a data processing system, a pre-global routing optimization of the design; setting a plurality of wirelength target constraints on a plurality of subsets of a set of nets in the design; performing global routing on the design; adjusting the design using wires placed in the design during the global routing; assigning a priority to each net in the set of nets; and performing detailed routing on the design. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer usable program product comprising a computer usable storage medium including computer usable code for timing driven routing in a design of an integrated circuit (IC), the computer usable code comprising:
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computer usable code for performing, using a router application executing in a data processing system, a pre-global routing optimization of the design; computer usable code for setting a plurality of wirelength target constraints on a plurality of subsets of a set of nets in the design; computer usable code for performing global routing on the design; computer usable code for adjusting the design using wires placed in the design during the global routing; computer usable code for assigning a priority to each net in the set of nets; and computer usable code for performing detailed routing on the design. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A data processing system for timing driven routing in a design of an integrated circuit (IC), the data processing system comprising:
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a storage device including a storage medium, wherein the storage device stores computer usable program code; and a processor, wherein the processor executes the computer usable program code, and wherein the computer usable program code comprises; computer usable code for performing, using a router application executing in a data processing system, a pre-global routing optimization of the design; computer usable code for setting a plurality of wirelength target constraints on a plurality of subsets of a set of nets in the design; computer usable code for performing global routing on the design; computer usable code for adjusting the design using wires placed in the design during the global routing; computer usable code for assigning a priority to each net in the set of nets; and computer usable code for performing detailed routing on the design.
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Specification