Discrete Time Dataflow in Ptolemy II
C. Fong, UC Berkeley

The Discrete Time (DT) domain in Ptolemy II is a timed extension of the Synchronous Dataflow (SDF) domain. Although not completely backward compatible with SDF, DT keeps most of the desirable properties of SDF like static scheduling, regular/periodic execution, bounded memory usage, and a guarantee that deadlock will never occur. In addition, DT has some desirable temporal properties such as uniformly-timed token flow and causality. This poster presentation will present the semantics and implementation of the DT domain in Ptolemy II.