Hotspot-Recompile - Quickly Improve Application Performance

 

This is the sample code described in the video:  http://software.intel.com/en-us/videos/hotspot-recompile-pisample/.  It simply computes the value of pi over several million iterations.  It is intended to show how to quickly use Intel® Parallel Amplifier to find the hotspot file, the file in which the biggest performance bottleneck function(s) is found.  Then, it shows how to configure the Microsoft Visual Studio project to only recompile that one file with Intel® Parallel Composer to optimize it.  Doing so results in about an 80% performance boost, without having to rebuild the whole application. 

By installing or copying all or any part of the software components in this page, you agree to the terms of the Intel Sample Source Code License Agreement.

 

Optimization Notice in English

For more complete information about compiler optimizations, see our Optimization Notice.
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Package icon PiSolver Samples.zip55.74 KB

2 comments

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anonymous's picture

我想实验下,看看对我的程序是否有比较大的用处

anonymous's picture

我正在开发一个结合图形数据库的地理信息系统(GIS),渴望提高其整体性能,最为突出的有下述三点:

1、文件IO效率的提升
2、双精度数计算的性能
3、屏幕显示的性能

估计并行编译器会给予我很大的帮助,但不知是否投入大量的附加工作?
非常希望体验该并行编译器的效果。

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