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
and then running multiple
ghc -c processes in parallel. Currently, it can
build itself and some small test programs (see the
To set the number of concurrent jobs, use the
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.
- Build fails when
- Tested only on Linux.