Cadence Design Systems, Inc.

Charles Winston Grant

Randall Scott Lawson

Ken Wadland

Sean Bergan

Richard Woodward

William Schilp

Glendine Kingsbury

Steve Russo

Jia Wu

Kota Sujan Reddy

Davis Tsai

Keith Woodward

Brett Allen Neal

Richard Allen Woodward, Jr

Jelena Radumilo-Franklin

Joseph Dexter Smedley

Abhay K Agarwal

Jelena Radumilo-Frankilin

Stephen Ralph Russo

The present disclosure relates to a computer-implemented method for electronic design simulation. The method may include providing, at an electronic design associated with one or more computing devices, a differential pair between a driver and a receiver. The method may further include identifying one or more segments associated with the differential pair and automatically solving, using the one or more computing devices, for a dynamic phase associated with the one or more segments.

System, method, and computer program product for static and dynamic phase matching in an electronic circuit design

A method, computer program product and apparatus for utilizing simulated locking prior to starting concurrent execution are disclosed. The results of this simulated locking are used to define a canonical ordering which controls the order of execution and the degree of parallelism that can be used.

Deterministic, parallel execution with overlapping regions

In one embodiment of the invention, an object oriented autorouter is disclosed for routing nets in a circuit. The object oriented autorouter includes a routing data model (RDM); at least one routing engine, such as a single connection router (SCR), a topographical (TOPO) transformation engine, and a detail geometric (DETAIL) engine, and a command and control module (CCM) coupled together. The RDM reads and write data with a design database as well as reading one or more object oriented design constraints. Each of the routing engines have at least one action to operate on the design database to improve compliance of the circuit to a constraint. The CCM controls the overall routing process of the nets in the circuit and includes at least one director to invoke at least one of the routing engines to achieve compliance with one or more constraints.

Systems for automatic circuit routing with object oriented constraints

Circuit autorouter with object oriented constraints

Disclosed is a method, system, and computer program product for implementing a costed-search approach that supports concurrent operation on a multi-CPU system that enables out-of-order search evaluation that does not affect the final outcome of the algorithm. The algorithm is guaranteed to produce identical results when run as a single-threaded application on a single-CPU system. This allows a single regression test suite to be used to test single-threaded and multi-threaded versions of the product.

Method and system for implementing deterministic multi-processing

Growing community of inventors

Leominster, MA, United States of America

Charles Winston Grant