Trace Recovery in Multi-Processing Systems: Architectural Considerations

Execution monitoring plays a central role in most software development tools for parallel and distributed computer systems. However, such monitoring may induce delays that corrupt trace event timing. Recently we demonstrated that, given a safe timed Petri net model of monitored software, timestamp values that would have been observed had the delays not been present can sometimes be recovered from the corrupted trace. In this paper we discuss the architectural implications of applying this result to multi-processing systems.