[mpich-discuss] Problem in sending vector <string> by MPI c++

[Vineet Pratap (Vampaier)]

Hello can somebody help me to sending it................

#include <iostream>
#include <vector>
#include <string>
#include"mpi.h"
using namespace std;

main(int argc, char *argv[])
{

        MPI::Status status;
        MPI::Init(argc,argv);
        int myrank = MPI::COMM_WORLD.Get_rank();
        int numprocs = MPI::COMM_WORLD.Get_size();
        MPI_Datatype strtype;
        //int blocklen=16;
        //MPI_Aint disp[3]={0,16,32};
        MPI_Type_contiguous(16,MPI::CHAR,&strtype);
        MPI_Type_commit(&strtype);
   vector<string> SS;
 if(myrank == 0){
   SS.push_back("The number is 10");
   SS.push_back("The number is 20");
   SS.push_back("The number is 30");

   cout << "At root Node: " << endl;

   int ii;
   for(ii=0; ii < SS.size(); ii++)
   {
      cout << SS[ii] << endl;
   }
        //MPI_Type_contiguous(16,MPI::CHAR,strtype);
        MPI::COMM_WORLD.Send(&SS[0],3,strtype, 1, 1);
 }
else{
        SS.reserve(3);
        MPI::COMM_WORLD.Recv(&SS[0],3,strtype,0,1);
   int ii;
         cout << "At worker Node: " << endl;
   for(ii=0; ii < SS.size(); ii++)
   {
      cout << SS[ii] << endl;
   }
 }
        MPI::Finalize();
}



Now My  O/P is:
$ mpicxx vecDemo.cpp -o vDemo.out -DMPICH_IGNORE_CXX_SEEK
$ mpirun -np 2 ./vDemo.out
At root Node:
The number is 10
The number is 20
The number is 30
At worker Node:
$

BUT i want O/P like.......
$ mpirun -np 2 ./vDemo.out
At root Node:
The number is 10
The number is 20
The number is 30
At worker Node:
The number is 10
The number is 20
The number is 30
$
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