Enabling a Uniform Programming Model Across the Software/Hardware Boundary

E. Anderson, J. Agron, W. Peck, Jim Stevens, Fabrice Baijot, E. Komp, R. Sass, D. Andrews
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引用次数: 56

Abstract

In this paper, we present hthreads, a unifying programming model for specifying application threads running within a hybrid CPU/FPGA system. Threads are specified from a single pthreads multithreaded application program and compiled to run on the CPU or synthesized to run on the FPGA. The hthreads system, in general, is unique within the reconfigurable computing community as it abstracts the CPU/FPGA components into a unified custom threaded multiprocessor architecture platform. To support the abstraction of the CPU/FPGA component boundary, we have created the hardware thread interface (HWTI) component that frees the designer from having to specify and embed platform specific instructions to form customized hardware/software interactions. Instead, the hardware thread interface supports the generalized pthreads API semantics, and allows passing of abstract data types between hardware and software threads. Thus the hardware thread interface provides an abstract, platform independent compilation target that enables thread and instruction-level parallelism across the software/hardware boundary
实现跨软件/硬件边界的统一编程模型
在本文中,我们提出了hthreads,一个用于指定在混合CPU/FPGA系统中运行的应用程序线程的统一编程模型。线程从单个pthreads多线程应用程序中指定,并编译以在CPU上运行或合成以在FPGA上运行。一般来说,hthreads系统在可重构计算社区中是独一无二的,因为它将CPU/FPGA组件抽象为统一的自定义线程多处理器体系结构平台。为了支持CPU/FPGA组件边界的抽象,我们创建了硬件线程接口(HWTI)组件,使设计人员不必指定和嵌入平台特定指令来形成自定义的硬件/软件交互。相反,硬件线程接口支持通用pthreads API语义,并允许在硬件和软件线程之间传递抽象数据类型。因此,硬件线程接口提供了一个抽象的、独立于平台的编译目标,支持跨软件/硬件边界的线程和指令级并行性
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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