Embedded power supply for low-power DSP
IEEE Transactions on Very Large Scale Integration (VLSI) Systems - Special issue on low power electronics and design
Reducing Multimedia Decode Power using Feedback Control
ICCD '03 Proceedings of the 21st International Conference on Computer Design
Managing power consumption in networks on chips
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Formal online methods for voltage/frequency control in multiple clock domain microprocessors
ASPLOS XI Proceedings of the 11th international conference on Architectural support for programming languages and operating systems
Dynamic voltage scheduling with buffers in low-power multimedia applications
ACM Transactions on Embedded Computing Systems (TECS)
Network calculus: a theory of deterministic queuing systems for the internet
Network calculus: a theory of deterministic queuing systems for the internet
Dynamic frequency scaling with buffer insertion for mixed workloads
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Energy adaptation for multimedia information kiosks
EMSOFT '06 Proceedings of the 6th ACM & IEEE International conference on Embedded software
Multimedia power management on a platter: from audio to video & games
MM '08 Proceedings of the 16th ACM international conference on Multimedia
Power management of voltage/frequency island-based systems using hardware-based methods
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Optimality and improvement of dynamic voltage scaling algorithms for multimedia applications
IEEE Transactions on Circuits and Systems Part I: Regular Papers
Adaptive power management for real-time event streams
Proceedings of the 2010 Asia and South Pacific Design Automation Conference
On line power optimization of data flow multi-core architecture based on vdd-hopping for local DVFS
PATMOS'10 Proceedings of the 20th international conference on Integrated circuit and system design: power and timing modeling, optimization and simulation
CODES+ISSS '11 Proceedings of the seventh IEEE/ACM/IFIP international conference on Hardware/software codesign and system synthesis
Combining optimistic and pessimistic DVS scheduling: an adaptive scheme and analysis
Proceedings of the International Conference on Computer-Aided Design
Energy optimization with worst-case deadline guarantee for pipelined multiprocessor systems
Proceedings of the Conference on Design, Automation and Test in Europe
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We present a new scheme for dynamic voltage and frequency scaling (DVS) for processing multimedia streams on architectures with restricted buffer sizes. The main advantage of our scheme over previously published DVS schemes is its ability to provide hard QoS guarantees while still achieving considerable energy savings. Our scheme can handle workloads characterized by both, the data-dependent variability in the execution time of multimedia tasks and the burstiness in the on-chip traffic arising out of multimedia processing. Many previous DVS algorithms capable of handling such workloads rely on control-theoretic feedback mechanisms or prediction schemes based on probabilistic techniques. Usually it is difficult to provide QoS guarantees with such schemes. In contrast, our scheme relies on worst-case interval-based characterization of the workload. The main novelty of our scheme is a combination of offline analysis and runtime monitoring to obtain worst case bounds on the workload and then improving these bounds at runtime. Our scheme is fully scalable and has a bounded application-independent runtime overhead.