<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[yang5256的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/yang5256</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; yang5256]]></copyright><item><title><![CDATA[初见C++ SIMD]]></title><link>https://blog.youkuaiyun.com/yang5256/article/details/140573150</link><guid>https://blog.youkuaiyun.com/yang5256/article/details/140573150</guid><author>yang5256</author><pubDate>Sat, 20 Jul 2024 18:52:58 +0800</pubDate><description><![CDATA[OpenMP、intel内置函数(头文件immintrin.h)g++ -O1 等可能会进行自动向量化，并且需要写-O1等才能启动omp的simd功能下面就这两种方法，写一下使用心得。朴素版本代码如下：
navie和optWithSimd的速度相同；
optWithSimd1相较navie1提高一倍；
navie2和optWithSimd2的速度相同；optWithSimd在高长度的情况下较navie快

optWithSimd1发挥出了向量化应有的力量；
optWithSimd2相较navie略快
我们对]]></description><category></category></item><item><title><![CDATA[FastDDS with C++开发经验]]></title><link>https://blog.youkuaiyun.com/yang5256/article/details/139740040</link><guid>https://blog.youkuaiyun.com/yang5256/article/details/139740040</guid><author>yang5256</author><pubDate>Mon, 17 Jun 2024 11:56:30 +0800</pubDate><description><![CDATA[TODO2.存在数据发布不及时的问题，例如发布一条消息对方收不到，但发送10条消息对方可以收到，很多时候运行了消息发布的语句，但和没有发布消息一样，可能是QoS设置的问题。1.默认的数据发送模式是共享内存，需要重复运行项目调试代码的话，最好改成UDP等，不然可能会出现运行任何DDS程序报出类似内存泄漏的错误。TODO3.liveliness策略貌似手动发送活跃断言无用。TODO是已发现待解决的问题。]]></description><category></category></item><item><title><![CDATA[第45届ICPC济南站L.Bit Sequence 数位DP+记忆化搜索]]></title><link>https://blog.youkuaiyun.com/yang5256/article/details/127015408</link><guid>https://blog.youkuaiyun.com/yang5256/article/details/127015408</guid><author>yang5256</author><pubDate>Fri, 23 Sep 2022 17:40:59 +0800</pubDate><description><![CDATA[第45届ICPC济南站L.Bit Sequence 数位DP+记忆化搜索]]></description><category></category></item><item><title><![CDATA[第 45 届ICPC济南站 A.Matrix Equation异或高斯消元+求自由元+bitset优化]]></title><link>https://blog.youkuaiyun.com/yang5256/article/details/127015359</link><guid>https://blog.youkuaiyun.com/yang5256/article/details/127015359</guid><author>yang5256</author><pubDate>Fri, 23 Sep 2022 17:37:41 +0800</pubDate><description><![CDATA[第 45 届ICPC济南站 A.Matrix Equation异或高斯消元+求自由元+bitset优化]]></description><category></category></item><item><title><![CDATA[45届ICPC济南站J-Tree Constructer二分图构造]]></title><link>https://blog.youkuaiyun.com/yang5256/article/details/127015128</link><guid>https://blog.youkuaiyun.com/yang5256/article/details/127015128</guid><author>yang5256</author><pubDate>Fri, 23 Sep 2022 17:33:27 +0800</pubDate><description><![CDATA[45届ICPC济南站J-Tree Constructer二分图构造]]></description><category></category></item></channel></rss>