public boolean setPower2Probability(int jobType, double prob) {
    	if(jobType > BATCH_JOBS || jobType < INTERACTIVE_JOBS) {
    		return false;
    	}
    	
    	if(useJobType_) {
    		pow2Prob[jobType] = prob;
    	} else {
    		pow2Prob[INTERACTIVE_JOBS] = pow2Prob[BATCH_JOBS] = prob;
    	}
    	
    	return true;
    }