Re: [Boost-users] [Boost.MPI] question about serializingcustomobject

Subject: Re: [Boost-users] [Boost.MPI] question about serializingcustomobject
From: Cristobal Navarro (axischire_at_[hidden])
Date: 2010-08-30 17:05:13

yes i thought too,
sadly at this point changing from

Lattice* lat(filename");

to

Lattice lat("filename");

means changing many lines of code of the algorithm asociated (which was
initially a secuential program)
anyways, this whole experience and problems debugging, resulted in a lot of
learning.

On Mon, Aug 30, 2010 at 5:53 PM, Robert Ramey <ramey_at_[hidden]> wrote:

>  Cristobal Navarro wrote:
> > i found the problem, and found a solution, but would be better if i
> > learn some explanations of you guys which know much more.
> >
> >
> > problem was that i was sending the pointer of my object
> > {
> > Lattice* lat = new Lattice("filename");
> > world.send(1, 1, lat);
> > }
> > that generated the errors on the packing algorithms i suppose
> > (correct me if im wrong)
> >
> >
> > so instead of changing all my program i only sent the object pointed
> >
> >
> > world.send(1, 1, *lat );
> >
> >
> > and on the receiver process i receive it with
> >
> >
> > Lattice lat;
> > world.recv(0, 1, lat);
> >
> >
> > then i can transform it to pointer again to keep my algorithms
> > unchanged,
> >
> >
> > Lattice plat = &lat;
> >
> >
> >
> >
> >
> >
> > i wonder, is this a good approach to solve the error i was having??
> > at least does work and i can continue programming, which makes me
> > happy :)
> >
> If it were me I would declare
>
> world.send(?, ?,  const Lattice & lat);
> world.recv(0, 1, Lattice & lat);
>
> then:
> Lattice lat("filename");
>
> world.send(1, 1, lat);
> and
> Lattice lat;
> world.recv(0, 1, lat);
>
> transparent, easy and guarenteed correct.
>
> Robert Ramey
>
>
>
>
>
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