Re: [Boost-users] Boost MPI Serialization : Sending serialized array of user defined classes

Subject: Re: [Boost-users] Boost MPI Serialization : Sending serialized array of user defined classes
From: Noman Javed (noman_bwp_at_[hidden])
Date: 2010-06-04 03:59:05

Matthias Troyer <troyer <at> phys.ethz.ch> writes:

> 
> Hi Noman,
> 
> Do you just want to know how it can be done or what would be needed to make it
efficient? 
> 
Both

> To just make it work, all you have to do is write serialize functions for your
Array class and your complex struct.
> 
Is it some specialized serialize function for array class or its the same as we
normally write for boost serialization?

> To make it efficient there are two considerations:
> 
> 1.) it is very inefficient to store your complex numbers as a std::vector -
each complex number will require
> a dynamic allocation. Why don't you just use std::complex or implement
real_imag as a fixed-size array of
> length 2.
> 
I have used complex here just as an example. Infact it can be any user defined
struct/class containing anything

> 2.) to make array serialization of built in types and some of your own structs
efficient you need to use array
> wrappers when you serialize your Array class.
> 
> 3.) consider using the skeleton&contents mechanism if you need to send your
array often and only the
> contents but not the size of the array change
> 
Can you give me some pointer about skeleton&contents mechanism and array wrappers

> I hope this helps
> 
> Matthias

Thanks
Noman
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