多核处理器与单核多个处理器的解释 [英] explanation regarding multi-core processor vs multiple processors with single core

问题描述

我知道OS会调度线程并由CPU执行它，并且线程数与内核数之间没有直接关系，这意味着具有多个内核(例如n)的单个处理器与n个单核处理器相同在这两种情况下，处理能力是否相同还是有所不同?

I know OS schedules thread and CPU executes it and there is direct relationship between no of threads and no of cores.Is that mean single processor with multiple cores (say n) is same as that of n single core processors, I mean In both of these cases processing ability is same or there is some difference?

推荐答案

是，存在差异，但是对于常规的编程决策而言，差异几乎微不足道，而且低级的.

yes, there is a difference, but for normal programming decisions the difference is almost insignificant and too low-level.

英特尔®64和IA -32体系结构软件开发人员手册在英特尔®超线程技术"和多核技术"一章中包含一些解释.

Intel® 64 and IA-32 Architectures Software Developer’s Manual contains some explanation in chapters "Intel® Hyper-Threading Technology" and "Multi-Core Technology"

类似的问题:

• 超级用户:超线程和双核，有什么区别?
• 堆栈溢出:多CPU，多核和超线程.

• SuperUser: Hyper-Threading and Dual-Core, What's the Difference?
• Stack Overflow: multi-CPU, multi-core and hyper-thread.

典型的程序员在解决并行编程问题时可能会关心的问题:

What typical programmers might care about when solving parallel programming problems/questions:

• 英特尔®开发人员专区:性能
• 英特尔公司开发多线程应用程序指南

• Intel® Developer Zone: Performance
• Intel Guide for Developing Multithreaded Applications

相关文章:

• 维基百科:多核处理器
• 维基百科:超线程

• Wikipedia: Multi-core processor
• Wikipedia: Hyper-threading

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