Synchronous Data Flow (SDF) is a graphical computation model used for analyzing digital signal processing and real time multimedia applications. In general, these applications have two primary performance metrics -throughput and latency. Latency is important in multimedia processing applications such as video-conferencing, Internet telephony and games since latency surpassing a specific limit results in poor quality of service (QoS). Past work had focused on computing the latency of SDF graphs

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... n homogeneous multiprocessor platforms. In this paper, we present an approach to compute the latency of a static schedule for a given unfolding factor with an optimal throughput for an SDF graph on a heterogeneous multiprocessor platform using timed automata. We use timed automata as a semantic model to represent the system model, which includes a synchronous data flow graph and an execution platform. We use the UPPAAL model-checker to specify the resulting network of timed automata and compute the latency. INDEX TERMS Synchronous dataflow, throughput, latency, timed automata, UPPAAL.