Package java.util.concurrent

Examples of java.util.concurrent.ThreadLocalRandom$RandomDoublesSpliterator

42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
    {
      public void writeData(Attributes attributes)
      {
        try
        {
          final ThreadLocalRandom random = ThreadLocalRandom.current();
          DataSource dataSource = WicketApplication.get().getDataSource();
          World[] worlds = new World[queries];
          try (Connection connection = dataSource.getConnection())
          {
            try (PreparedStatement statement = connection.prepareStatement(
                       "SELECT * FROM World WHERE id = ?",
                       ResultSet.TYPE_FORWARD_ONLY,
                       ResultSet.CONCUR_READ_ONLY))
            {
              for (int i = 0; i < queries; i++)
              {
                  statement.setInt(1, random.nextInt(DB_ROWS) + 1);
                  try (ResultSet resultSet = statement.executeQuery())
                  {
                      resultSet.next();
                      worlds[i] = new World(
                              resultSet.getInt("id"),
View Full Code Here
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
    response.setWriteCallback(new WriteCallback() {
      public void writeData(Attributes attributes)
      {
        try
        {
          final ThreadLocalRandom random = ThreadLocalRandom.current();
          DataSource dataSource = WicketApplication.get().getDataSource();

          World[] worlds = new World[queries];
          try (Connection connection = dataSource.getConnection();
               PreparedStatement query = connection.prepareStatement(
                       "SELECT * FROM World WHERE id = ?",
                       ResultSet.TYPE_FORWARD_ONLY,
                       ResultSet.CONCUR_READ_ONLY);
               PreparedStatement update = connection.prepareStatement(
                       "UPDATE World SET randomNumber = ? WHERE id= ?"))
          {
            for (int i = 0; i < queries; i++)
            {
              query.setInt(1, random.nextInt(DB_ROWS) + 1);
              World world;
              try (ResultSet resultSet = query.executeQuery())
              {
                resultSet.next();
                world = new World(
                    resultSet.getInt("id"),
                    resultSet.getInt("randomNumber"));
              }
              world.randomNumber = random.nextInt(DB_ROWS) + 1;
              update.setInt(1, world.randomNumber);
              update.setInt(2, world.id);
              update.executeUpdate();
              worlds[i] = world;
            }
View Full Code Here
68
69
70
71
72
73
74
75
76
77
78
79
80
    }

    private Set<MeasurementDataNumeric> generateData() {
        Set<MeasurementDataNumeric> data = new HashSet<MeasurementDataNumeric>(batchSize);
        long timestamp = dateTimeService.nowInMillis();
        ThreadLocalRandom random = ThreadLocalRandom.current();

        for (int i = 0; i < batchSize; ++i) {
            data.add(new MeasurementDataNumeric(timestamp, startingScheduleId + i, random.nextDouble()));
        }

        return data;
    }
View Full Code Here
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
      Collection<Example> examples = input.first();
      FeedforwardParams params = input.second();

      // We can't fix the seed used with ThreadLocalRandom
      // TODO: Is this a serious problem?
      ThreadLocalRandom random = ThreadLocalRandom.current();

      gradW1 = new double[W1.length][W1[0].length];
      gradb1 = new double[b1.length];
      gradW2 = new double[W2.length][W2[0].length];
      gradE = new double[E.length][E[0].length];

      double cost = 0.0;
      double correct = 0.0;

      for (Example ex : examples) {
        List<Integer> feature = ex.getFeature();
        List<Integer> label = ex.getLabel();

        double[] scores = new double[numLabels];
        double[] hidden = new double[config.hiddenSize];
        double[] hidden3 = new double[config.hiddenSize];

        // Run dropout: randomly drop some hidden-layer units. `ls`
        // contains the indices of those units which are still active
        int[] ls = IntStream.range(0, config.hiddenSize)
                            .filter(n -> random.nextDouble() > params.getDropOutProb())
                            .toArray();

        int offset = 0;
        for (int j = 0; j < config.numTokens; ++j) {
          int tok = feature.get(j);
View Full Code Here
71
72
73
74
75
76
77
78
79
80
81
82
        final ScheduledExecutorService sched;

        TestOrdering(ExecutorService exec, ScheduledExecutorService sched)
        {
            this.sched = sched;
            final ThreadLocalRandom rnd = ThreadLocalRandom.current();
            for (int i = 0 ; i < waitNanos.length ; i++)
                waitNanos[i] = rnd.nextInt(5000);
            for (int i = 0 ; i < PRODUCERS / CONSUMERS ; i++)
                exec.execute(new Producer());
            exec.execute(this);
        }
View Full Code Here
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
    {
        int count = state.rowGen.count(index);
        List<ByteBuffer> src = state.settings.columns.names;
        if (count == src.size())
            return src;
        ThreadLocalRandom rnd = ThreadLocalRandom.current();
        List<ByteBuffer> r = new ArrayList<>();
        int c = 0, o = 0;
        while (c < count && count + o < src.size())
        {
            int leeway = src.size() - (count + o);
            int spreadover = count - c;
            o += Math.round(rnd.nextDouble() * (leeway / (double) spreadover));
            r.add(src.get(o + c++));
        }
        while (c < count)
            r.add(src.get(o + c++));
        return r;
View Full Code Here
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
    }

    @Setup
    public void setup() throws IOException
    {
        ThreadLocalRandom random = ThreadLocalRandom.current();
        int[] randomRunLength = range(this.randomRunLength);
        int[] duplicateLookback = range(this.duplicateLookback);
        rawBytes = new byte[uniquePages][pageSize];
        lz4Bytes = new byte[uniquePages][];
        snappyBytes = new byte[uniquePages][];
        byte[][] runs = new byte[duplicateLookback[1] - duplicateLookback[0]][];
        for (int i = 0 ; i < rawBytes.length ; i++)
        {
            byte[] trg = rawBytes[0];
            int runCount = 0;
            int byteCount = 0;
            while (byteCount < trg.length)
            {
                byte[] nextRun;
                if (runCount == 0 || random.nextDouble() < this.randomRatio)
                {
                    nextRun = new byte[random.nextInt(randomRunLength[0], randomRunLength[1])];
                    random.nextBytes(nextRun );
                    runs[runCount % runs.length] = nextRun;
                    runCount++;
                }
                else
                {
                    int index = runCount < duplicateLookback[1]
                            ? random.nextInt(runCount)
                            : (runCount - random.nextInt(duplicateLookback[0], duplicateLookback[1]));
                    nextRun = runs[index % runs.length];
                }
                System.arraycopy(nextRun, 0, trg, byteCount, Math.min(nextRun.length, trg.length - byteCount));
                byteCount += nextRun.length;
            }
View Full Code Here
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
    }

    @Test
    public void testAddEdgeALot() {
        MatrixGraph graph = new MatrixGraph(17);
        ThreadLocalRandom random = ThreadLocalRandom.current();
        IntStream.range(0, 1000).forEach(index -> {
            int i = random.nextInt(17);
            int j = random.nextInt(17);
            int value = random.nextInt(10_000) - 5_000;
            graph.addEdge(i, j, value);
            assertTrue(graph.hasEdge(i, j));
            assertEquals(value, graph.getWeight(i, j));
        });
    }
View Full Code Here
135
136
137
138
139
140
141
142
143
144
145
        {
            MODIFY.execute(new Runnable()
            {
                public void run()
                {
                    ThreadLocalRandom random = ThreadLocalRandom.current();
                    for (int i = 0 ; i < perThreadTrees ; i++)
                    {
                        Object[] tree = randomTree(10000, random);
                        for (int j = 0 ; j < perTreeSelections ; j++)
                        {
View Full Code Here
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
        int count = (int) columnCount.next();
        int totalCount = settings.columns.names.size();
        if (count == settings.columns.names.size())
            return new ColumnSelection(null, 0, count);
        ThreadLocalRandom rnd = ThreadLocalRandom.current();
        int[] indices = new int[count];
        int c = 0, o = 0;
        while (c < count && count + o < totalCount)
        {
            int leeway = totalCount - (count + o);
            int spreadover = count - c;
            o += Math.round(rnd.nextDouble() * (leeway / (double) spreadover));
            indices[c] = o + c;
            c++;
        }
        while (c < count)
        {
View Full Code Here
TOP

Related Classes of java.util.concurrent.ThreadLocalRandom$RandomDoublesSpliterator

  • co.paralleluniverse.concurrent.util.DelayQueueBenchmark
  • co.paralleluniverse.strands.channels.Selector
  • co.paralleluniverse.strands.channels.TransferChannel
  • edu.stanford.nlp.parser.nndep.Classifier$CostFunction
  • fr.umlv.graph.MatrixGraphTest
  • hellowicket.dbupdates.HelloDbUpdatesResource
  • hellowicket.HelloDbResponse
  • org.apache.cassandra.concurrent.LongOpOrderTest$TestOrdering
  • org.apache.cassandra.stress.Operation
  • org.apache.cassandra.stress.operations.predefined.PredefinedOperation
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.