if (output != "square"){ driverMPI(start, end, (outputFile + toString(pid) + ".temp"), size); }
else { driverMPI(start, end, (outputFile + toString(pid) + ".temp"), size, output); }
if (output != "square"){ driverMPI(start, end, (outputFile + toString(pid) + ".temp"), size); }
else { driverMPI(start, end, (outputFile + toString(pid) + ".temp"), size, output); }