Dynamic Dispatch Scheduling for High Performance VLIW Architecture
Keywords:
VLIW, ILP, Reorder Buffer, Dynamic DispatchAbstract
VLIW architecture has become widespread due to the combined bene?ts of simple hardware and compiler-extracted instruction-level parallelism. However, the VLIW instruction set architecture and its hardware implementation are tightly coupled, a novel simultaneous multithreading VLIW architecture with dynamic dispatch mechanism to address the challenge of the underutilization of computing resources. The SMT technology exploits the unused instruction slots by converting the thread level parallelism to the instruction-level parallelism, improving the efficiency. On the availability of the corresponding functional units. With the dynamic dispatch mechanism, the issues instructions to functional unit at run-time rather than at compile-time, such that the issue conflicts among multiple threads are reduced significantly. The new VLIW architecture shows that it can effectively increase the processor throughput and improve the performance.
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