On 08:10 Sun 13 Jul , Carlos Henrique da Silva Santos wrote:
> Ok. Gabriele,
> But I would like to know, how can I define DATATYPE on send and
> recv? Could you give me an example?
> For example, my class has the following design and I want to
> send/recv Test object.
>
> class Test {
> private:
> int coordinate;
> vector<double> s;
> public:
> void setD(int, vector<double>);
> double getParameter(int);
> vector<double> getAll(void);
> }Hi Carlos, the problem with this object is that it contains a pointer to malloc'd memory (the vector). Since datatypes can only be used for objects with fixed size (and layout), you can't define an MPI_Datatype for this. I'd suggest you to use Boost.MPI in this case (http://www.boost.org/doc/libs/1_35_0/doc/html/mpi.html) Cheers -Andreas -- ============================================ Andreas Schäfer Cluster and Metacomputing Working Group Friedrich-Schiller-Universität Jena, Germany 0049/3641-9-46376 PGP/GPG key via keyserver I'm a bright... http://www.the-brights.net ============================================ (\___/) (+'.'+) (")_(") This is Bunny. Copy and paste Bunny into your signature to help him gain world domination!
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