c++ - Open MP parallel loop never ends -


i programming in c++ , want parallelize part of code improve speed. need rerun same functions multiple times changing input. type of program following:

classa model = classa(); std::stringstream  * outputstring = new std::stringstream[thetains]; double       #pragma omp parallel shared(model, thetains, thetains, thetains)  (int thetain = 0; thetain < thetains; thetain++)  {     double output;     classa modelcore = model;     int thetarn;     int phirn      (thetarn = 0; thetarn < thetarns; thetarn++)      {         (phirn = 0; phirn < phirns; phirn++)          {             output= modelcore.output(thetain, thetarn, phirn);             outputstring [thetain] << output; << "\n";             phir = phir + phirs;         }     } } string final = ""; (int thetain = 0; thetain < thetains; thetain++)  {     final += outputstring[thetain].str(); } ofstream outputfile("outputfile.txt"); outputfile << final;

the program works fine part of time enters in infinite loop. has idea why happening?

many dylan


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