Cooperative Multithreading in Dynamically Reconfigurable Systems
Multithreaded programming is an increasingly popular way to express concurrency in applications. Preemptive multitasking, a popular technique for timesharing of computational resources in software-based systems, faces considerable difficulties when applied to partially reconfigurable hardware. In this paper, the authors propose a cooperative scheduling technique for reconfigurable hardware threads as a feasible compromise between computational efficiency and implementation complexity. They have implemented this mechanism for the multithreaded reconfigurable operating system ReconOS and evaluated its overheads and performance on a prototype.
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