Hi,
I am getting the following run time errors for the code below.
Any suggestions?

_alev

[ceng34:00724] *** Process received signal ***
[ceng34:00724] Signal: Segmentation fault (11)
[ceng34:00724] Signal code: Address not mapped (1)
[ceng34:00724] Failing at address: 0xfffffffffffffff8
[ceng34:00724] [ 0] /lib64/libpthread.so.0 [0x315880de80]
[ceng34:00724] [ 1] /usr/lib64/libstdc++.so.6(_ZN9__gnu_cxx18__exchange_and_addEPVii+0x2) [0x385dab7672]
[ceng34:00724] [ 2] /usr/lib64/libstdc++.so.6(_ZNSs6assignERKSs+0x9b) [0x385da9ca4b]
[ceng34:00724] [ 3] test-boost(_ZN5fieldaSERKS_+0x47) [0x42197f]
[ceng34:00724] [ 4] test-boost(_ZNSt6__copyILb0ESt26random_access_iterator_tagE4copyIPK5fieldPS3_EET0_T_S8_S7_+0x3c) [0x4221be]
[ceng34:00724] [ 5] test-boost(_ZSt10__copy_auxIPK5fieldPS0_ET0_T_S5_S4_+0x29) [0x422203]
[ceng34:00724] [ 6] test-boost(_ZNSt13__copy_normalILb0ELb0EE6copy_nIPK5fieldPS2_EET0_T_S7_S6_+0x25) [0x42222b]
[ceng34:00724] [ 7] test-boost(_ZSt4copyIPK5fieldPS0_ET0_T_S5_S4_+0x2d) [0x42225b]
[ceng34:00724] [ 8] test-boost(_ZN5boost3mpi6detail12scatter_implI5fieldEEvRKNS0_12communicatorEPKT_PS7_iiN4mpl_5bool_ILb0EEE+0x90) [0x42a630]
[ceng34:00724] [ 9] test-boost(_ZN5boost3mpi7scatterI5fieldEEvRKNS0_12communicatorEPKT_PS6_ii+0x50) [0x42b162]
[ceng34:00724] [10] test-boost(_ZN5boost3mpi7scatterI5fieldEEvRKNS0_12communicatorERKSt6vectorIT_SaIS7_EEPS7_ii+0x55) [0x42b1db]
[ceng34:00724] [11] test-boost(main+0x20e) [0x420880]
[ceng34:00724] [12] /lib64/libc.so.6(__libc_start_main+0xf4) [0x3157c1d8b4]
[ceng34:00724] [13] test-boost(__gxx_personality_v0+0x169) [0x420489]
[ceng34:00724] *** End of error message ***
mpirun noticed that job rank 0 with PID 724 on node ceng34-ib exited on signal 11 (Segmentation fault).



#include <boost/mpi/environment.hpp>
#include <boost/mpi/communicator.hpp>
#include <boost/mpi/collectives.hpp>
#include <boost/thread/barrier.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/config.hpp>
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>
#include <boost/serialization/access.hpp>
#include <boost/serialization/string.hpp>
#include <boost/mpi/skeleton_and_content.hpp>
#include <boost/mpi/datatype.hpp>
#include <boost/mpi/allocator.hpp>
#include <boost/archive/tmpdir.hpp>
#include <boost/serialization/utility.hpp>
#include <boost/serialization/base_object.hpp>
#include <boost/mpi.hpp>
#include <boost/tokenizer.hpp>
#include <boost/archive/tmpdir.hpp>
#include <boost/archive/binary_oarchive.hpp>
#include <boost/serialization/export.hpp>
#include <boost/serialization/base_object.hpp>
#include <boost/serialization/utility.hpp>
#include <boost/serialization/hash_map.hpp>
#include <boost/serialization/map.hpp>



#include <string>
#include <iostream>
#include <vector>
#include <fstream>

#define MASTER 0

int arraySize = 7;

using namespace std;
namespace mpi = boost::mpi;

struct field {
    string field_name;
    string field_type;
    string field_ref;
    string field_colType;   
   
};

namespace boost {
    namespace serialization{
        template<class Archive>
        void serialize(Archive & ar, struct field & f,  unsigned int version){
            ar & f.field_name;
            ar & f.field_type;
            ar & f.field_ref;
            ar & f.field_colType;
        }
    }
}

int main(int argc, char* argv[])
{
    mpi::environment env(argc, argv);
    mpi::communicator world;
    int m_mySize, w_mySize, kk,i;   
    struct field *relAllValues;
    struct field *relMyValues;
    vector<struct field> C;
    struct field c;   
         
    w_mySize = arraySize / world.size();
    cout << "w_mySize = " << w_mySize << endl;
    if (world.rank() == MASTER){     
        for(int i = 0; i < arraySize; i++){           
            c.field_name = "field_name=" ;
            c.field_type = "field_type=";
            c.field_ref = "field_ref=";
            c.field_colType = "field_colType=";
            C.push_back(c);
        }
          m_mySize = arraySize / world.size() + arraySize % world.size();
        relMyValues = (struct field *) malloc(sizeof(struct field) * w_mySize);
        relAllValues = (struct field *) malloc(sizeof(struct field) * arraySize);
       
    }
      else{
         relMyValues = (struct field *) malloc(sizeof(struct field) * w_mySize);
      }
     
      if (world.rank() == MASTER){
          scatter(world, C, relMyValues, w_mySize, 0);
      }
      else{
          scatter(world, C, relMyValues, w_mySize, 0);
      }
    if (world.rank() == 1){
        cout << "MY RANK IS " << world.rank() << endl;
    }
}