Importance

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Abstract

A computer-implemented method of balancing logic resource usage in a circuit design for a programmable integrated circuit (IC) includes determining that an assignment of elements of the circuit design to a first type of logic resource is unbalanced compared to an assignment of elements to an alternate type of logic resource. Binary variables are defined for circuit elements assigned to the first and alternate types of logic resources, where each binary variable indicates whether the associated circuit element is to be re-assigned to the first or alternate type of logic resource. Constraints are defined specifying relationships among selected variables. Values for the variables are obtained according to the constraints by minimizing a function dependent on a sum of the binary variables. Circuit elements are re-assigned to the first or alternate types of logic resources according to the values determined for the binary variables, and the circuit design is output.

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First Claim