RISC-V生态系统中Decompression计算软硬件协同设计的周期精确评估
Cycle-Accurate Evaluation of Software-Hardware Co-Design of Decimal Computation in RISC-V Ecosystem
摘要：
针对十进制计算的软硬件协同设计解决方案可以在硬件成本和性能方面为嵌入式系统的开发提供几个帕累托点。本文演示了如何使用RISC-V生态系统准确评估此类协同设计解决方案。在软件-硬件协同设计解决方案中，解决方案的一部分需要专用硬件。在我们的评估框架中，我们开发了新的十进制的加速器支持的指令。该框架可以实现对性能的周期精确分析，以及十进制计算的协同设计解决方案的硬件开销。所得到的性能结果进行了比较与虚拟功能的估计。
英文摘要：
Software-hardware co-design solutions for decimal computation can provide several Pareto points to development of embedded systems in terms of hardware cost and performance. This paper demonstrates how to accurately evaluate such co-design solutions using RISC-V ecosystem. In a software-hardware co-design solution, a part of solution requires dedicated hardware. In our evaluation framework, we develop new decimal oriented instructions supported by an accelerator. The framework can realize cycle-accurate analysis for performance as well as hardware overhead for co-design solutions for decimal computation. The obtained performance result is compared with an estimation with dummy functions.
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