How to use GDB with openMP and concurrent programming?

I was provided with a text file as input with 1,000,000 entries between 0 and 9. Each entry corresponds to a vote for a candidate made by a national. I was asked to read the file in sequence and then determine who won the race. I've been asked to do this with both parallel and non-parallel programming. My parallel function (pCounter) is not working and I am trying to figure out why, but I cannot get GDB to work in openMP. It just "continues" over the function when I want it to "walk". Does anyone know how I can use GDB for openMP and parallel programming?

EDIT When I try to execute a parallel function I get the following output:

[New Thread 0x7ffff619e700 (LWP 11152)]
[New Thread 0x7ffff599d700 (LWP 11153)]
[New Thread 0x7ffff519c700 (LWP 11154)]

      

        
        
        
      

    

Compiler line: g++ -g homework_5_1.cpp -o hw51 -std=c++11 -fopenmp

code:

void sCounter(myint *x, myint len){
  myint candidates[10];
  for(int i=0; i<10; ++i){
    candidates[i]=0;
  }
  for(int i=0; i<len; ++i){
    candidates[x[i]]+=1;
  }
  int winner=0;
  for(int i=0; i<10; ++i){
    if(i==winner)
      ++i;
    if(candidates[i]>candidates[winner]){
      winner=i;
      i=0;
    }
  }
  cout<<"The winner is candidate "<<winner<<endl;
  for(int i=0; i<10; i++){
    cout<<candidates[i]<<" ";
  }
  cout<<endl;
  int sum=0;
  for(int i=0; i<10; ++i){
    sum+=candidates[i];
  }
  cout<<sum<<endl;
}

void pCounter(myint *x, myint len){
  myint numberOfThreads;
  myint candidates[10];
  for(int i=0; i<10; ++i){
    candidates[i]=0;
  }
  int winner=0;
  #pragma omp parallel
  {
    #pragma omp for
    for(int i=0; i<len; ++i){
      candidates[x[i]]+=1;
    }
    #pragma omp for
    for(int i=0; i<10; ++i){
      if(i==winner)
        ++i;
      if(candidates[i]>candidates[winner]){
        winner=i;
        i=0;
      }
    }
  }
  cout<<"The winner is candidate "<<winner<<endl;
  for(int i=0; i<10; i++){
    cout<<candidates[i]<<" ";
  }
  cout<<endl;
  int sum=0;
  for(int i=0; i<10; ++i){
    sum+=candidates[i];
  }
  cout<<sum<<endl;
}