ITR: Real-Time Systems-on-a-Chip

未来的嵌入式处理器将在单个芯片上集成多个异构处理器，并集成一个大型共享存储器。这种处理器的许多应用都有严格的实时要求。 该项目研究新的架构和系统软件功能，可以让这样的处理器，以支持复杂的实时应用程序。 我们将研究限制共享内存争用和减少同步开销的体系结构特性，以减少延迟并使线程执行时间更具可预测性。 该项目还将探索使用专用I/O处理器，这些处理器可以直接平等地访问共享内存，以最大限度地减少I/O操作对实时线程执行的干扰。 新的技术调度实时线程上的异构多处理器芯片也将进行研究。

The embedded processor of the future will have multiple heterogeneous processors on a single chip integrated with a large shared memory. Many of the applications for this processor will have strict real-time requirements. This project investigates novel architectural and system software features that can allow such a processor to support complex real-time applications. Architectural features that limit shared memory contention and reduce synchronization overhead will be studied in order to reduce latencies and make thread execution times more predictable. The project will also explore the use of specialized I/O processors having direct and equal access to shared memory in order to minimize interference of I/O operations on real-time thread execution. Novel techniques for scheduling real-time threads on a heterogeneous multiprocessor-on-a-chip will also be studied.