System and method for supporting multi-rate simulation of a circuit having hierarchical data structure
US7269541B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2003 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Dec 31, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/33
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for supporting multi-rate simulation of a circuit having a hierarchical data structure includes a simulator module having one or more computer programs for 1) partitioning the circuit into a plurality of group circuits, each group circuit includes one or more leaf circuits, where each leaf circuit produces a predictable set of output signals with a given set of input signals, 2) storing the group circuits in a scheduled event queue in accordance with priority in time which the group circuits need to be simulated, 3) retrieving from the scheduled event queue a set of group circuits for simulation within a predetermined time period, 4) distributing the set of group circuits into a set of predefined event lists, where each of the predefined event list stores one or more group circuits of a corresponding event type, and 5) simulating the one or more group circuits in each of the predefined event list in accordance with a rate of change of signal conditions of each individual group circuit. Hence, the system provides an efficient way to support multi-rate simulation by dynamically scheduling and synchronizing multiple group simulation event types and by communicating correspond…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.