Re: [Boost-users] mpi/serialization: broadcasting derivedclass through base pointer

Subject: Re: [Boost-users] mpi/serialization: broadcasting derivedclass through base pointer
From: MM (finjulhich_at_[hidden])
Date: 2012-01-29 08:26:23

>From: boost-users-bounces_at_[hidden]
[mailto:boost-users-bounces_at_[hidden]] On Behalf Of Matthias Troyer
>Sent: 29 January 2012 12:32
>To: boost-users_at_[hidden]
>Subject: Re: [Boost-users] mpi/serialization: broadcasting derivedclass
through base pointer
>
>
>this is not an infinite loop since it calls operator>> with a different
type - can you please post more if you think there is an infinite >loop. I
am still confused as to what the reason for your problems is.
>
>Also, did you test whether what you want to do works if you use binary
archives, to store and load the object?
>
>Matthias

This was happening at a stage where I was not consistent in the sending
broadcast with the receiving broadcast.

Just to double check, I assume that it should be possible to:

1. send with mpi::broadcast( ,  const base_pointer, ) and receive with
mpi::broadcast( ,  const base_pointer, ), granted the derived classes have
been exported with BOOST_CLASS_EXPORT_KEY in both translation units.

2. send with mpi::broadcast( ,  const derived_pointer, ) and receive with
mpi::broadcast( ,  const base_pointer, ), granted the derived classes have
been exported with BOOST_CLASS_EXPORT_KEY in both translation units.

I am doing 1. and 2.. In both cases the receiver throws "class unregistered"
even though the BOOST_CLASS_EXPORT_KEY expands correctly in both sender and
receiver(slave) translation units.

What was the fix you were comitting over the weekend?

thanks

MM