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

Example 31 with DoubleBuffer

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

the class Axpy method doUpdate.

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

Example 32 with DoubleBuffer

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

the class Ceil method doUpdate.

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

Example 33 with DoubleBuffer

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

the class Copy method doUpdate.

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

Example 34 with DoubleBuffer

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

the class Div 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 35 with DoubleBuffer

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

the class DivS method doUpdate.

@Override
protected void doUpdate(ServerDenseDoubleRow[] rows, double[] scalars) {
    try {
        rows[1].getLock().writeLock().lock();
        DoubleBuffer from = rows[0].getData();
        DoubleBuffer to = rows[1].getData();
        double value = scalars[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();
    }
}