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Although electronic devices permeate the home and offer unsurpassed power and features, many impediments still exist to realizing the concept of the smart-home: configuration complexity, minimal device interoperability, difficulty of use, lack of personalization, and no integration with sensors for awareness and adaptation. We define four tenets of smart-home environment: Zero-configuration, Universality, Multiuser optimality, and Adaptability (ZUMA), and describe a platform based on a set of clean abstractions for users, content, and devices. The platform enables configuration and organization of content and networked heterogeneous devices in a smart-home environment. We validate the platform with a prototype implementation and analyze its flexibility and infrastructure requirements. 1 *The ZUMA project is funded by the Gigascale Systems Research Center www.gigascale.org

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Scalable and power efficient multi-core architectures must be performance heterogeneous to accommodate semiconductor parametric variations and non-uniform access to shared resources. Due to its rate matching, a NoC on a Voltage-Frequency Island architecture can connect cores without forcing each one to give up its own operating point for the chip-wide common worst case. With run-time adaptive routing and task-to-core mapping, a NoC can run at the average not the worst case network saturation bandwidth. These run-time processes compensate for variations because they match application resource requirements with heterogeneous cores and routers.We focus on adaptive routing that simultaneously combats communication load imbalance from on-die variations and application topology. We show that even with static, fixed task-to-core mapping on multi-core architectures affected by stochastic variations, our MATC router increases the expected saturation bandwidth by 7-25% vs Dimension Order router. With systematic variations, the improvements are 5-50%. These gains compensate for saturation bandwidth degradation due to manufacturing variations and help to reduce design guard-bands.