Mean dose prediction errors < 3% for PTV suggest that both algorithms enable highly accurate dose calculations under clinical conditions. However, users should be aware of slightly underestimated OAR doses using the eCC algorithm.
Distributed real-time applications implement distributed applications with timeliness requirements. Such systems require a deterministic communication medium with bounded communication delays. Ethernet is a widely used commodity network with many appliances and network components and represents a natural fit for real-time application; unfortunately, standard Ethernet provides no bounded communication delays. Conditional state-based communication schedules provide expressive means for specifying and executing with choice points, while staying verifiable. Such schedules implement an arbitration scheme and provide the developer with means to fit the arbitration scheme to the application demands instead of requiring the developer to tweak the application to fit a predefined scheme. An evaluation of this approach as software prototypes showed that jitter and execution overhead may diminish the gains. This work successfully addresses this problem with a synthesized soft processor. We present results around the development of the soft processor, the design choices, and the measurements on throughput and robustness. Conditional state-based communication schedules provide expressive means for specifying and executing with choice points, while staying verifiable. Such schedules implement an arbitration scheme and provide the developer with means to fit the arbitration scheme to the application demands instead of requiring the developer to tweak the application to fit a predefined scheme. An evaluation of this approach as software prototypes showed that jitter and execution overhead may diminish the gains.This work successfully addresses this problem with a synthesized soft processor. We present results around the development of the soft processor, the design choices, and the measurements on throughput and robustness.
Distributed real-time applications implement distributed applications with timeliness requirements. Such systems require a deterministic communication medium with bounded communication delays. Ethernet is a widely used commodity network with a large number of appliances and network components and represents a natural fit for real-time application; unfortunately, standard Ethernet provides no bounded communication delays.Network Code Processor is a soft processor implementation for real-time communication on Ethernet. The system provides a smart network-card functionality and can be seen as a co-processor for time-triggered communication. Its most distinguishing feature, the programmability of the processor via the Network Code language, allows developers to write adaptive but verifiable communication schedules tailored to the application needs. In this work we present results around the development of the soft processor, discuss the specific challenges of how to build a reliable and fast communication system, the tradeoffs involved when moving from a generic software prototype to a programmable hardware implementation.
AbstractDistributed real-time applications implement distributed applications with timeliness requirements. Such systems require a deterministic communication medium with bounded communication delays. Ethernet is a widely used commodity network with a large number of appliances and network components and represents a natural fit for real-time application; unfortunately, standard Ethernet provides no bounded communication delays.Network Code Processor is a soft processor implementation for real-time communication on Ethernet. The system provides a smart network-card functionality and can be seen as a co-processor for time-triggered communication. Its most distinguishing feature, the programmability of the processor via the Network Code language, allows developers to write adaptive but verifiable communication schedules tailored to the application needs. In this work we present results around the development of the soft processor, discuss the specific challenges of how to build a reliable and fast communication system, the tradeoffs involved when moving from a generic software prototype to a programmable hardware implementation.
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