The complexity of System-On-Chip based designs used in Intelligent Systems is growing fast with platforms comprised of multiple different cores with the software stack interacting across these cores. This translates directly to a more complex software stack, that has its own challenges for guaranteeing consistent reliability throughout the devices life cycle. Thus it is ever more important to have system and application debug solutions that provide deep hardware and platform insight as well as visibility of the entire system software stack.

Intel System Studio not only provides a variety of signal processing primitives via Intel® Integrated Performance Primitives (Intel® IPP), and Intel® Math Kernel Library (Intel® MKL), but also allows developing high-performance low-latency custom code (Intel C++ Compiler with Intel Cilk Plus). Since Intel Cilk Plus is built into the compiler, it can be used where it demands an efficient threading runtime in order to extract parallelism. Therefore it's possible to effectively introduce multicore parallelism even without introducing it into each of the important algorithms e.g., by employing a parallel pattern called pipeline. For custom code (e.g., code that's not reused via a library), one can rely (in addition to auto-vectorization) on an extended Array Notation incl. elemental functions (kernels) to explicitly vectorize at a higher level compared to ISA-specific intrinsic functions.

摘要

本文可帮助用户在英特尔® 至强融核™ 协处理器上优化应用。它旨在与英特尔® VTune™ Amplifier XE 性能分析器一同使用，概述了架构，并详细说明了使用什么事件和指标来分析性能，另外还提出了调优建议。

1 内容简介

简介

面向 Linux* 的英特尔® Composer XE 2013 包括英特尔® 调试器，对于运行在主机系统上并可在英特尔® 至强融核™ 协处理器上创建卸载进程的异构应用的编码问题，该调试器可提供若干分析与追踪方法。另外，英特尔® 调试器只允许调试协处理器代码。