예제 #1
0
    private static void WriteNewCentroids(Context context) throws IOException {
      FileSystem fs = FileSystem.get(context.getConfiguration());
      Path nextCFile = new Path(context.getConfiguration().get("NEXTCFILE"));
      DataOutputStream d = new DataOutputStream(fs.create(nextCFile, false));
      BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(d));

      for (String centroid : newCentroids) {
        writer.write(centroid + "\n");
      }

      writer.close();
    }
예제 #2
0
  public static void main(String[] args) throws Exception {
    Configuration conf = new Configuration();
    FileSystem fs = FileSystem.get(conf);

    Path matFile = new Path(args[0]);
    FSDataInputStream matData = fs.open(matFile);
    BufferedReader br = new BufferedReader(new InputStreamReader(matData));

    int i = 0;
    String line;
    while ((line = br.readLine()) != null) {
      StringTokenizer tokenizer = new StringTokenizer(line);
      String iRow = tokenizer.nextToken();
      String iCol = tokenizer.nextToken();
      if (Integer.parseInt(iRow) == Integer.parseInt(iCol)) {
        i++;
      }
    }
    br.close();
    int dimention = i;

    conf.setInt("DIMENTION", dimention);
    Path xFile = new Path("preX/Result");
    FSDataOutputStream xData = fs.create(xFile);
    BufferedWriter iniX = new BufferedWriter(new OutputStreamWriter(xData));
    for (int j = 0; j < dimention; j++) {
      iniX.write(String.valueOf(j) + " 0");
      iniX.newLine();
    }
    iniX.close();

    URI matVec = new URI(args[0]);
    DistributedCache.addCacheFile(matVec, conf);

    int iteration = 0;
    do {
      ToolRunner.run(conf, new Jacobi(), args);
    } while (iteration++ < max_iter && (!stopIteration(conf)));
  }