I have a Visual Studio 2008 C++ project that has support for using multiple CPUs/cores when compiling. In the VCPROJ file I see this:
<Tool
Name="VCCLCompilerTool"
AdditionalOptions="/MP"
...
I can't find where that was turned added via the IDE and I want to set up another project that uses all of my cores during compilation.
I found tons of references to the MSDN /MP page but that is for using the command line; I have yet to find any references to setting that with the IDE. How do I do that?
EDIT: To clarify, the two projects are completely separate and are not in the same VCPROJ file. I wanted to turn on support for multiple cores during the C++ compilation phase.
And for 1000 files, each core of the processor can happily compile one file at a time, keeping all cores totally busy. Tip: "make" uses multiple cores if you give it the right command line option. Without that it will compile one file after the other on a 16 core system.
Visual Studio has the option of choosing number of maximum parallel builds - they use as many CPU cores as you wish. However, you shouldn't really focus too much on this option when deciding which CPU to buy.
To enable /MP option you could add it to Project Settings->C/C++->Command Line|Additional options
. This is the only way to switch it on in vcproj.
Tools > Options > Projects and Solutions > Build and Run > maximum number of parallel project builds
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