Re: [Boost-users] [MPI] Derived class not properly registered, even if it is.

AMDG Mathieu Larose wrote:

I realized that if I uncomment these lines in main.cpp:

#include <boost/serialization/export.hpp> BOOST_CLASS_EXPORT(B);

My code runs correctly.

It seems that BOOST_CLASS_EXPORT needs to be in the same .cpp file (i.e main.cpp) where MPI is used. When using serialization only, BOOST_CLASS_EXPORT could be in any .cpp files.

Is this normal?

Also, if A is no more an abstract class, BOOST_CLASS_EXPORT(B); could be called from other.cpp and the code runs correctly.

I'm using version 1.39.0.

You need to #include all the appropriate archive headers before using BOOST_CLASS_EXPORT. In this case you need <boost/mpl/packed_oarchive.hpp> and <boost/mpi/packed_iarchive.hpp>, I think. In Christ, Steven Watanabe