Examples with DoubleBuffer java.nio.DoubleBuffer used on opensource projects

Example 41 with DoubleBuffer

use of java.nio.DoubleBuffer in project angel by Tencent.

the class MinA method doUpdate.

@Override
protected void doUpdate(ServerDenseDoubleRow row, double[] other) {
    try {
        row.getLock().writeLock().lock();
        DoubleBuffer data = row.getData();
        int size = row.size();
        for (int i = 0; i < size; i++) {
            data.put(i, Math.min(data.get(i), other[i]));
        }
    } finally {
        row.getLock().writeLock().unlock();
    }
}

Example 42 with DoubleBuffer

use of java.nio.DoubleBuffer in project angel by Tencent.

the class Mul method doUpdate.

@Override
protected void doUpdate(ServerDenseDoubleRow[] rows) {
    try {
        rows[2].getLock().writeLock().lock();
        DoubleBuffer from1 = rows[0].getData();
        DoubleBuffer from2 = rows[1].getData();
        DoubleBuffer to = rows[2].getData();
        int size = rows[0].size();
        for (int i = 0; i < size; i++) {
            to.put(i, from1.get(i) * from2.get(i));
        }
    } finally {
        rows[2].getLock().writeLock().unlock();
    }
}

Example 43 with DoubleBuffer

use of java.nio.DoubleBuffer in project angel by Tencent.

the class MulS method doUpdate.

@Override
protected void doUpdate(ServerDenseDoubleRow[] rows, double[] values) {
    try {
        rows[1].getLock().writeLock().lock();
        DoubleBuffer from = rows[0].getData();
        DoubleBuffer to = rows[1].getData();
        double value = values[0];
        int size = rows[0].size();
        for (int i = 0; i < size; i++) {
            to.put(i, from.get(i) * value);
        }
    } finally {
        rows[1].getLock().writeLock().unlock();
    }
}

Example 44 with DoubleBuffer

use of java.nio.DoubleBuffer in project angel by Tencent.

the class Push method doUpdate.

@Override
protected void doUpdate(ServerDenseDoubleRow row, double[] values) {
    DoubleBuffer data = row.getData();
    int size = row.size();
    for (int i = 0; i < size; i++) {
        data.put(i, values[i]);
    }
}

Example 45 with DoubleBuffer

use of java.nio.DoubleBuffer in project angel by Tencent.

the class Random method doUpdate.

@Override
protected void doUpdate(ServerDenseDoubleRow[] rows, double[] value) {
    for (ServerDenseDoubleRow row : rows) {
        try {
            row.getLock().writeLock().lock();
            DoubleBuffer rowData = row.getData();
            java.util.Random rand = new java.util.Random(row.getRowId());
            for (int j = 0; j < row.size(); j++) {
                rowData.put(j, rand.nextDouble());
            }
        } finally {
            row.getLock().writeLock().unlock();
        }
    }
}