Sliding time window control mechanism for parallel execution of multiple processor core models in a virtual platform simulation

US10445445B2 · kind B2 · utility

Assignee

• SYNOPSYS, INC. · US

Inventors

• Dietmar Petras · Eschweiler, DE
• Thomas Philipp · Eilsbrunn, DE
• Stephan Tobies · Erkelenz, DE
• Kristof A. Niederholtmeyer · Aachen, DE
• Koen M. C. Velle · Roeselare, BE

Key dates

• Filing date: Apr 18, 2017
• Grant date: Oct 15, 2019
• Expiry date: Feb 3, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F9/4498
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Embodiments of the present disclosure support a simulation of a plurality of processor core models. The processor core models are executed in parallel within a sliding time window of a defined size. Each processor core model is executed in a different corresponding thread and advances a local core time within the sliding time window. The sliding time window advances by updating a start time of the sliding time window based on the local core time of each processor core model. One or more hardware models and a simulation kernel are executed in a separate thread having a simulation time and simulation events. The start time of the sliding time window is updated based further on an event time of a next event of the simulation events scheduled in the separate thread.