if(rank==0) {
        while(1) {
            ilong[0]=incrementcounter*rangeLength;
            if (ilong[0]+rangeLength <= numberOfCombinations) {
                ilong[1]=ilong[0]+rangeLength;
                communicate
                incrementcounter++;
            }
            else {
                ilong[1] = numberOfCombinations;
                communicate
                ilong[2]=1;
                for(i=1; i<numprocs; i++)
                    communicate
                break;
            }
        }
    }