Dynamic Task Binding for Hardware/Software Reconfigurable Networks

In this paper, a new methodology for tolerating link as well as node defects in self-adaptive reconfigurable networks will be presented. Currently, networked embedded systems need a certain level of redundancy for each node and link in order to tolerate defects and failures in a network. Due to monetary constraints as well as space and power limitations, the replication of each node and link is not an option in most embedded systems. Therefore, we will present a hardware/software partitioning algorithm for reconfigurable networks that optimizes the task binding onto resources at runtime such that node/link defects can be handled and data traffic on links between computational nodes will be minimized. This paper presents a new hardware/software partitioning algorithm, an experimental evaluation and for demonstrating the realizability, an implementation on a network of FPGA-based boards

An Operating System Infrastructure for Fault-Tolerant Reconfigurable Networks

Dynamic hardware reconfiguration is becoming a key technology in embedded system design that offers among others new potentials in dependable computing. To make system designers benefit from this new technology, powerful infrastructures and programming environments are needed. In this paper, we will propose new concepts of an operating system (OS) infrastructure for reconfigurable networks that allow to efficiently design fault-tolerant systems. For this purpose, we consider a hardware/software solution that supports dynamic rerouting, hardware and software task migration, hardware/software task morphing, and online partitioning. Finally. we will present an implementation of such a reconfigurable network providing this OS infrastructure