A parallel wrapper for 'ghc --make'.

Latest on Hackage:0.1.9

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow to host generated Haddocks.

BSD3 licensed by Mikhail Glushenkov


Build Status

ghc-parmake is a parallel wrapper for ghc --make intended to work as its drop-in replacement. It can build your Haskell program in parallel using multiple cores and will be integrated with cabal build eventually (though I also plan to support the standalone version).

To use it with cabal, try cabal build --with-ghc=ghc-parmake --ghc-options="-j N".

ghc-parmake works by first extracting a module dependency graph with ghc -M and then running multiple ghc -c processes in parallel. Currently, it can build itself and some small test programs (see the tests directory).

To set the number of concurrent jobs, use the -j option.


ghc-parmake OPTS FILES

-j N             - Run N jobs in parallel.
--ghc-path=PATH  - Set the path to the ghc executable.

-vv[N]           - Set verbosity to N (only for ghc-parmake).
                   N is 0-3, default 1.
-v[N]            - Set verbosity to N (both for GHC and ghc-parmake itself).
--help           - Print usage information.
-V               - Print version information.

Other options are passed to GHC unmodified.

Known limitations

  • Build fails when -odir != -hidir.
  • Tested only on Linux.
Used by 1 package:
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