Main.java

package com.savaskoc.tckn;

import com.amd.aparapi.Kernel;

import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;

public class Main {
    public static void main(String[] args) throws FileNotFoundException, UnsupportedEncodingException {
        int num = 406816900 - 406816880;

        TCKernel kernel = new TCKernel(406816880, num);
        kernel.execute(num);

        System.out.printf("%d numbers in %d ms\n", num, kernel.getAccumulatedExecutionTime());

        PrintWriter writer = new PrintWriter("numbers.txt");
        kernel.saveResults(writer);
        writer.flush();
    }

    public static class TCKernel extends Kernel {
        long[] result;
        int start;

        public TCKernel(int start, int num) {
            this.result = new long[num];
            this.start = start;
        }

        @Override
        public void run() {
            result[getGlobalId()] = calculate(start + getGlobalId());
        }

        public long calculate(int tc) {
            int num = tc;
            int n9 = num % 10;
            num /= 10;
            int n8 = num % 10;
            num /= 10;
            int n7 = num % 10;
            num /= 10;
            int n6 = num % 10;
            num /= 10;
            int n5 = num % 10;
            num /= 10;
            int n4 = num % 10;
            num /= 10;
            int n3 = num % 10;
            num /= 10;
            int n2 = num % 10;
            num /= 10;
            int n1 = num % 10;

            int odds = n1 + n3 + n5 + n7 + n9;
            int evens = n2 + n4 + n6 + n8;

            int n10 = (odds * 7 - evens) % 10;
            int n11 = (odds + evens + n10) % 10;

            return (long) tc * 100 + (n10 * 10 + n11);
        }

        public void saveResults(PrintWriter writer) {
            writer.println("Result\t\tNum\t\tExpected");
            for (int i = 0; i < result.length; i++) {
                int tc = start + i;
                writer.printf("%d\t%d\t%d%s", result[i], tc, calculate(tc), System.lineSeparator());
            }
        }
    }
}