boost::mpi + boost::shared_ptr

6 Jul 2007

      Dear All,
I have encountered a problem I cannot go through
regarding boost::mpi and shared_ptr.

Please consider the following code:

class Foo
{
    friend class boost::serialization::access;
    template<class Archive>
    void serialize(Archive &ar, const unsigned int
version)
    {
    //...
    }
};

//...
    mpi::communicator world;
    boost::shared_ptr<Foo> pFoo;

    if (world.rank() == 0)
        pFoo = boost::shared_ptr<Foo>(new Foo);

    mpi::broadcast(world, pFoo, 0);
//...

Now unfortunately this doesn't compile, I get the
following error message:

/home/jooam/usr/include/boost-1_35/boost/serialization/shared_ptr.hpp:
In function 'void boost::serialization::load(Archive&,
boost::shared_ptr<U>&, unsigned int) [with Archive =
boost::mpi::packed_iarchive, T = Foo]':
/home/jooam/usr/include/boost-1_35/boost/serialization/split_free.hpp:58:
  instantiated from 'static void
boost::serialization::free_loader::invoke(Archive&, T&, unsigned int) [with Archive =
boost::mpi::packed_iarchive, T =
boost::shared_ptr<Foo>]'
/home/jooam/usr/include/boost-1_35/boost/serialization/split_free.hpp:74:
  instantiated from 'void
boost::serialization::split_free(Archive&, T&,
unsigned int) [with Archive =
boost::mpi::packed_iarchive, T =
boost::shared_ptr<Foo>]'
/home/jooam/usr/include/boost-1_35/boost/serialization/shared_ptr.hpp:152:
  instantiated from 'void
boost::serialization::serialize(Archive&,
boost::shared_ptr<U>&, unsigned int) [with Archive =
boost::mpi::packed_iarchive, T = Foo]'
/home/jooam/usr/include/boost-1_35/boost/serialization/serialization.hpp:140:
  instantiated from 'void
boost::serialization::serialize_adl(Archive&, T&,
unsigned int) [with Archive =
boost::mpi::packed_iarchive, T =
boost::shared_ptr<Foo>]'
/home/jooam/usr/include/boost-1_35/boost/archive/detail/iserializer.hpp:161:
  instantiated from 'void
boost::archive::detail::iserializer::load_object_data(boost::archive::detail::basic_iarchive&,
void*, unsigned int) const [with Archive =
boost::mpi::packed_iarchive, T =
boost::shared_ptr<Foo>]'
/home/jooam/evolearn/src/evolearn.cpp:75:  
instantiated from here
/home/jooam/usr/include/boost-1_35/boost/serialization/shared_ptr.hpp:137:
error: 'class boost::mpi::packed_iarchive' has no
member named 'reset'

Could you tell me please, what I'm doing wrong? I
would appreciate any help.

Have a nice day,
Andras

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Matthias Troyer

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