Automatic Offloading of C++ for the Cell BE Processor: A Case Study Using Offload
Automatic Offloading of C++ for the Cell BE Processor: A Case Study Using Offload
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Cell BE 处理器的 C 自动卸载：使用 Offload 的案例研究
DOI：
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发表时间：
2010
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通讯作者：
G. Russell
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文献类型：
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作者：
Alastair F. Donaldson;Uwe Dolinsky;A. Richards;G. Russell
Offload C++ 是 C++ 语言的扩展版本，与编译器和运行时系统一起，用于自动卸载通用 C++ 代码以在 Cell 宽带引擎 (BE) 处理器的协同处理器元件 (SPE) 上运行。我们通过使用卸载图像处理应用程序的部分方法的案例研究来介绍 Offload C++。案例研究介绍了语言扩展；说明了该技术所基于的核心技术：自动调用图复制和自动生成数据移动代码；展示了如何通过同时将工作卸载到多个 SPE 来实现并行性，同时功率处理器元件 (PPE) 内核同时执行额外的工作；并演示了我们处理复杂语言功能（例如函数指针和多个编译单元）的解决方案。
Offload C++ is an extended version of the C++ language, together with a compiler and runtime system, for automatically offloading general-purpose C++ code to run on the Synergistic Processor Elements (SPEs) of the Cell Broadband Engine (BE) processor. We introduce Offload C++ by presenting a case study using the approach to offload parts of an image processing application. The case study introduces the language extensions; illustrates the core technology on which the technique is based: automatic call-graph duplication, and automatic generation of data-movement code; shows how parallelism can be achieved by offloading work to multiple SPEs simultaneously, while the Power Processor Element (PPE) core simultaneously performs additional work; and demonstrates our solutions to dealing with complex language features such as function pointers and multiple compilation units.