Boost logo

Boost :

Subject: Re: [boost] bcp update, was: The boost component dependencies blues
From: Jeremiah Willcock (jewillco_at_[hidden])
Date: 2009-12-16 14:10:47

>> MPI still gets pulled in - this is an artifact of some recent changes to
>> boost.graph (which is used by python) to optionally make use of the
>> parallel graph lib depending upon some #define.
> I see boost/graph/accounting.hpp includes boost/mpi/config.hpp. Is this the
> culprit ? Can't that dependency chain be broken up, to not have boost.python
> depend on boost.mpi ? (I think this is really a general question, not
> specific to boost.graph. I remember seeing a quite rediculous dependency
> graph generated by Troy Straszheim, and breaking out of this would probably
> be a good idea independently from whether someone tries to break out
> individual components or not. (It may well reduce overall compile time.)

There a bunch of other Boost.Graph files that include things from
boost/graph/parallel which uses Boost.MPI. This was done to allow more
transparent use of parallel graph data structures and algorithms, just by
including <boost/graph/use_mpi.hpp>.

-- Jeremiah Willcock

Boost list run by bdawes at, gregod at, cpdaniel at, john at