void retrieval(char *indexPath,queryManager *queries,char *outputFile)
{
IndexReader *theIndex = new IndexReader(indexPath);
char blockInfoName[] = "BM25-02";
theIndex -> loadBlockInfo(blockInfoName);
ofstream F1;
F1.open(outputFile);
if(!F1) {cerr << "Error: file "<<outputFile<<" Could not be writ to"<<endl; return;}
double totalEval=0;
TimeCounter *timer = new TimeCounter();
unsigned i;
for(i=0;i<queries->num();i++)
{
timer->start();
query* qry = queries -> getQuery(i);
RetManager *reter = new RetManager(theIndex,qry);
reter->retrieval(RetNum);
timer->stop();
cout<<qry->topicNum<<'\t'<<timer->getTrackTime()<<'\t'<<reter->getEvalCounter()<<endl;
totalEval+=reter->getEvalCounter();
reter->show(F1);
//cout<<"\r retrieval topic "<<qry->topicNum<<flush;
delete reter;
}
cout<<endl;
cout<<"Used total time "<<timer->getTotalTime()<<"ms, average "<<timer->getAverageTime()<<"ms"<<" with "<<totalEval/queries->num()<<" evaluateions"<<endl;
F1.close();
delete(theIndex);
delete(timer);
}
