/MP and the -j option

Added by Andreas Fredriksson over 4 years ago

Hi, I was toying around with JamPlus on an existing codebase the other day and I noticed that adding /MP4 (VS 2008) on a four core system seems to spawn lots and lots of cl.exe processes.

It seems as if JamPlus is already spawing jobs in parallel by defaulting the -j option to the number of CPUs, because if I specify -j1 the build runs nicely with 4 cl.exe active most of the time. If that is the case, is there a way to control it from inside e.g. Jamrules?

// Andreas

Replies (2)

RE: /MP and the -j option - Added by Andreas Fredriksson over 4 years ago

Maybe I should have looked at the previous post with almost the same exact subject.. :)

Sorry about that.

RE: /MP and the -j option - Added by Joshua Jensen over 4 years ago

There isn't a variable that you can set in Jam to control the number of processes. I will look into adding one. It shouldn't be hard.

Josh

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