Is there a way to speed up C++ compilation times in Solaris Sun Studio 12?

Sinc开发者_高级运维e I am compiling my C++ code on a very server box (32 or 64 cores in total), is there a way of tweaking compiler options to speed up the compilation times? E.g. to tell compiler to compile independent .cpp files using multiple threads.

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Sun Studio includes parallel build support in the included dmake version of make. See the dmake manual for details.

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This depends on what toolchain you're using.

If you're using GNU Make, then add -j 32 to your make invocation to tell Make to start 32 jobs (for example) in parallel. Just make sure that you're not exhausting RAM and thrashing your swap file as a result.

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Use something like Boost JAM which does this sort of multithreading for you - and from my experience much more efficiently than multi-threaded make.

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Sun's C++ compiler also has an -xjobs option that makes the compiler fork multiple threads internally. For this to be efficient you would probably have to pass all .cc files to a single invocation of CC.