如何利用nmake的所有内核？(How do I utilise all the cores for nmake?)

如何利用nmake的所有内核？(How do I utilise all the cores for nmake?)

我刚刚获得了一台新的四核电脑，并注意到nmake只使用1个进程。

我曾经使用make，它有开关-j4启动4个进程。 nmake等价物是什么？

根据下面的信息，我已经能够向我的qmake项目文件添加一个命令：

QMAKE_CXXFLAGS + = / MP

哪个有效地为我做了 非常感谢。

I just got a new quad core computer and noticed that nmake is only using 1 process.

I used to use make which had the switch -j4 for launching 4 processes. What is the nmake equivalent?

[edit] Based on the information below I have been able to add a command to my qmake project file:

QMAKE_CXXFLAGS += /MP

Which effectively did it for me. Many thanks.

最满意答案

根据MSDN ， nmake没有这样的选择。

然而，您可以通过使用VC ++命令行编译器的/MP选项并同时传递多个文件来使编译器并行构建多个文件：

> cl /MP a.cpp b.cpp c.cpp

但是请注意，大多数Makefile不像这样调用编译器 - 他们通常会为每个单独的源文件调用编译器，这将阻止/MP选项执行任何有用的操作。

According to MSDN, there's no such option for nmake.

You can however make the compiler build multiple files in parallel by using the /MP option with the VC++ command line compiler and passing multiple files at the same time:

> cl /MP a.cpp b.cpp c.cpp

However note that most Makefiles don't call the compiler like this - they usual invoke the compiler separate for each individual source file, which would prevent the /MP option from doing anything useful.