Ejemplo n.º 1
0
  /** Simple test of spmv work with files. You should specify paths. */
  @Test
  public void simpleSpMVTestFile() {
    try {
      int size = 4;
      String matrixPath = "";
      String vectorPath = "";
      String outputPath = "";
      if (matrixPath.isEmpty() || vectorPath.isEmpty() || outputPath.isEmpty()) {
        LOG.info(
            "Please setup input path for vector and matrix and output path for result, "
                + "if you want to run this example");
        return;
      }
      SpMV.main(new String[] {matrixPath, vectorPath, outputPath, "4"});

      String resultPath = SpMV.getResultPath();
      DenseVectorWritable result = new DenseVectorWritable();
      SpMV.readFromFile(resultPath, result, conf);

      double expected[] = {38, 12, 24, 11};
      if (result.getSize() != size) throw new Exception("Incorrect size of output vector");
      for (int i = 0; i < result.getSize(); i++)
        if ((result.get(i) - expected[i]) < 0.01) expected[i] = 0;

      for (int i = 0; i < expected.length; i++)
        if (expected[i] != 0) throw new Exception("Result doesn't meets expectations");

    } catch (Exception e) {
      e.printStackTrace();
      fail(e.getLocalizedMessage());
    }
  }
Ejemplo n.º 2
0
  /**
   * Simple test. multiplying [1 0 6 0] [2] [38] [0 4 0 0] * [3] = [12] [0 2 3 0] [6] [24] [3 0 0 5]
   * [1] [11]
   */
  @Test
  public void simpleSpMVTest() {
    HamaConfiguration conf = new HamaConfiguration();
    String testDir = "/simple/";
    int size = 4;
    String matrixPath = baseDir + testDir + "inputMatrix";
    String vectorPath = baseDir + testDir + "inputVector";
    String outputPath = baseDir + testDir;

    try {
      if (fs.exists(new Path(baseDir))) {
        fs.delete(new Path(baseDir), true);
      }

      // creating test matrix
      HashMap<Integer, Writable> inputMatrix = new HashMap<Integer, Writable>();
      SparseVectorWritable vector0 = new SparseVectorWritable();
      vector0.setSize(size);
      vector0.addCell(0, 1);
      vector0.addCell(2, 6);
      SparseVectorWritable vector1 = new SparseVectorWritable();
      vector1.setSize(size);
      vector1.addCell(1, 4);
      SparseVectorWritable vector2 = new SparseVectorWritable();
      vector2.setSize(size);
      vector2.addCell(1, 2);
      vector2.addCell(2, 3);
      SparseVectorWritable vector3 = new SparseVectorWritable();
      vector3.setSize(size);
      vector3.addCell(0, 3);
      vector3.addCell(3, 5);
      inputMatrix.put(0, vector0);
      inputMatrix.put(1, vector1);
      inputMatrix.put(2, vector2);
      inputMatrix.put(3, vector3);
      writeMatrix(matrixPath, conf, inputMatrix);

      HashMap<Integer, Writable> inputVector = new HashMap<Integer, Writable>();
      DenseVectorWritable vector = new DenseVectorWritable();
      vector.setSize(size);
      vector.addCell(0, 2);
      vector.addCell(1, 3);
      vector.addCell(2, 6);
      vector.addCell(3, 1);
      inputVector.put(0, vector);
      writeMatrix(vectorPath, conf, inputVector);

      SpMV.main(new String[] {matrixPath, vectorPath, outputPath, "4"});

      String resultPath = SpMV.getResultPath();
      DenseVectorWritable result = new DenseVectorWritable();
      SpMV.readFromFile(resultPath, result, conf);
      LOG.info("result is a file: " + fs.isFile(new Path(resultPath)));

      double expected[] = {38, 12, 24, 11};
      if (result.getSize() != size) throw new Exception("Incorrect size of output vector");
      for (int i = 0; i < result.getSize(); i++)
        if ((result.get(i) - expected[i]) < 0.01) expected[i] = 0;

      for (int i = 0; i < expected.length; i++)
        if (expected[i] != 0) throw new Exception("Result doesn't meets expectations");

      fs.delete(new Path(baseDir), true);
    } catch (Exception e) {
      e.printStackTrace();
      fail(e.getLocalizedMessage());
    } finally {
    }
  }