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Compile multiple files at a time in parallel

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korDen:
Does C::B support running multiple compilation processes in parallel, similar to Gentoo MAKEOPTS flag? With my current settings, C::B compiles on file at a time and this is suboptimal nowadays. Compiling multiple files in parallel would decrease compilation time up to 2 times for dual core and up to 4 time for quad core processors. I think it is a nice feature to have. Thank you

MortenMacFly:

--- Quote from: korDen on October 22, 2008, 01:25:35 pm ---Does C::B support running multiple compilation processes in parallel,

--- End quote ---
Yes: Settings -> Compiler and Debugger -> [select your compiler] -> Tab "Other settings" -> Choose "number of processes..."

The question is whether the compiler framework supports it. I once tried with VC6 and it produced very strange errors utiul I realised it was a problem with the multiple processes.

thomas:
I use MinGW/gcc with 5 compile processes on a quadcore, which works just fine and is the sweet spot for my system. This leaves about 10-12% of idle CPU time, because writing out object files starts making the build process I/O bound.

What does not work, funnily, is compiling makefiles with -j 5, although make has been supporting this for much, much longer and should be much, much more mature than Code::Blocks. However, make regularly messes up with several processes, whenever it has to prepare a file that's used later.

MortenMacFly:

--- Quote from: thomas on October 22, 2008, 02:59:16 pm ---I use MinGW/gcc with 5 compile processes on a quadcore

--- End quote ---
Braggart! :lol:
...you know how to make other devs jealous, right?! :cry:

thomas:
How jealous will Yiannis be if I tell him my TV runs on Linux...

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