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Subject: Re: [boost] [serialization] failing MPI build
From: Alain Miniussi (alain.miniussi_at_[hidden])
Date: 2015-04-15 12:29:17

Ok, I just missed one related with class_optional_id_type.
The version in the noptfo branch works fine.

I'll merge those changes in develop.


On 15/04/2015 17:42, Robert Ramey wrote:
> Alain Miniussi wrote
>>>> I guess I need to remove some int arguments from the
>>>> (save|load)_override methods of boost::mpi::packed_(i|o)archive classes
>>>> ?
>>> You are correct. It's easy to see the changes. If you do a diff on some
>>> other archive like binary or text in the serialization library you'll see
>>> that the dummy parameter used to emulate partial function template
>>> overload
>>> has been eliminated. And of course eliminate the #include
>>> boost/serialization/ptfo.hpp . That's all that is necessary. This
>>> simplifies code at the cost of eliminating support of borland 5x and mdvc
>>> 7.0 and below which is no longer considered necessary. Since these
>>> headers
>>> are considered implementation features of the serialization library it
>>> didn't occur to me that making these changes would break anything else.
>>> Sorry about that.
>> I am relatively new to that part of Boost.MPI so I cannot tell if these
>> features should have been used in boost mpi in the first place.
> These features were copied from the archive implementations included
> in the serialization library. Their function was to support compilers which
> are
> obsolete. For this reason they were eliminated from the serialization
> library
> and should be eliminated from MPI version as well. These changes did not
> cause any test failures in the serialization library nor require any changes
> in any tests to pass.
> One experiment would be to "resurrect" the ptfo.hpp file from github
> and re-run the tests. If the tests pass then we know that it's because
> ptfo.hpp was removed. Otherwise it would be due to some other change.
>> If you're interested in enhancing, or improving the MPI implementation as
>> it
>> regards serialization, you should let me know so I could acquaint myself
>> with the MPI version and offer some suggestions. I've had some ideas in
>> my
>> head for years would simplify and expedite usage of the serialization
>> library for object transmission over a stream but I've never spend any
>> time
>> on them as it didn't seem anyone had any interest.
> I started doing some modifications that I will put on a branch on github.
> Right now, with those modifications the develop version of Boost.MPI
> compiles again with the develop version of serialization. But I still
> have some runtime failures so I'd like to fix those before going to
> github develop.
> The failure have to do with serialization of "complex" stl data
> structure (stl collections of non PODs). I suspect it has something to
> do with binary serialization optimisation (where non POD are considered
> POD).
> Removal of pfto support entails changing signatures of some save/load
> functions which could easily manifest itself in the problems you're having.
> Double check for save/load functions with "extra" arguments.
> Robert Ramey
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