Is it any compilator option of flag?
As you wished, VS IDE does support multi-core build process.
Building larger solutions in Visual Studio can be tediously slow. Part of the reason is that the compiler does not make use of multiple CPU cores well.
You can if you setup an external tool pointing to MsBuild to build the solution with the multiple process flag /m.
Scott Hanselman wrote a nice post on how to accomplish this, so I won't repeat what he has already done.
MSDN answers your question:
Using Multiple Processors to Build Projects
In case anyone comes across this, VS2012 introduced parallel builds as a standard feature. Quote from the article:
Visual Studio 2010 included an option for "maximum number of parallel project builds." Although there was no indication of any restriction, this IDE option only worked for C++ projects. Fortunately, this restriction no longer applies to Visual Studio 11. Rather, there's now full support for parallel builds in other languages as well. To view this, run a copy of Process Explorer at the same time a solution with numerous projects is building. You'll see that multiple MSBuild instances are created -- as many as specified in the "maximum number of parallel project builds."
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