Examples with Range edu.rit.util.Range used on opensource projects

Example 66 with Range

use of edu.rit.util.Range in project ffx by mjschnie.

the class IntegerBuf method colSliceBuffer.

/**
 * Create a buffer for one column slice of the given integer matrix. The
 * returned buffer encompasses all the rows, and <TT>theColRange</TT> of
 * columns, in <TT>theMatrix</TT>. The range's stride may be 1 or greater
 * than 1.
 *
 * @param theMatrix Matrix.
 * @param theColRange Range of columns to include.
 * @return Buffer.
 * @exception NullPointerException (unchecked exception) Thrown if
 * <TT>theMatrix</TT> is null or
 * <TT>theColRange</TT> is null.
 * @exception IndexOutOfBoundsException (unchecked exception) Thrown if
 * <TT>theMatrix</TT>'s allocation does not include <TT>theColRange</TT>.
 */
public static IntegerBuf colSliceBuffer(int[][] theMatrix, Range theColRange) {
    if (theMatrix == null) {
        throw new NullPointerException("IntegerBuf.colSliceBuffer(): theMatrix is null");
    }
    int nr = Arrays.rowLength(theMatrix);
    int nc = Arrays.colLength(theMatrix, 0);
    if (0 > theColRange.lb() || theColRange.ub() >= nc) {
        throw new IndexOutOfBoundsException("IntegerBuf.colSliceBuffer(): theMatrix column index range = 0.." + (nc - 1) + ", theColRange = " + theColRange);
    }
    if (theColRange.stride() == 1) {
        return new IntegerMatrixBuf_1(theMatrix, new Range(0, nr - 1), theColRange);
    } else {
        return new IntegerMatrixBuf(theMatrix, new Range(0, nr - 1), theColRange);
    }
}

Example 67 with Range

use of edu.rit.util.Range in project ffx by mjschnie.

the class IntegerBuf method buffer.

/**
 * Create a buffer for the entire given integer matrix. The returned buffer
 * encompasses all the rows and all the columns in
 * <TT>theMatrix</TT>.
 *
 * @param theMatrix Matrix.
 * @return Buffer.
 * @exception NullPointerException (unchecked exception) Thrown if
 * <TT>theMatrix</TT> is null.
 */
public static IntegerBuf buffer(int[][] theMatrix) {
    if (theMatrix == null) {
        throw new NullPointerException("IntegerBuf.buffer(): theMatrix is null");
    }
    int nr = Arrays.rowLength(theMatrix);
    int nc = Arrays.colLength(theMatrix, 0);
    return new IntegerMatrixBuf_1(theMatrix, new Range(0, nr - 1), new Range(0, nc - 1));
}

Example 68 with Range

use of edu.rit.util.Range in project ffx by mjschnie.

the class Unsigned16BitIntegerBuf method patchBuffers.

/**
 * Create an array of buffers for multiple patches of the given integer
 * matrix. The length of the returned buffer array is equal to the length of
 * <TT>theRowRanges</TT> times the length of <TT>theColRanges</TT>. Each
 * element of the returned buffer array encompasses the rows given in one
 * element of <TT>theRowRanges</TT> array, and the columns given in one
 * element of <TT>theColRanges</TT> array, in all possible combinations, of
 * <TT>theMatrix</TT>. Each range's stride may be 1 or greater than 1.
 *
 * @param theMatrix Matrix.
 * @param theRowRanges Array of ranges of rows to include.
 * @param theColRanges Array of ranges of columns to include.
 * @return Array of buffers.
 * @exception NullPointerException (unchecked exception) Thrown if
 * <TT>theMatrix</TT> is null,
 * <TT>theRowRanges</TT> or any element thereof is null, or
 * <TT>theColRanges</TT> or any element thereof is null.
 * @exception IndexOutOfBoundsException (unchecked exception) Thrown if
 * <TT>theMatrix</TT>'s allocation does not include any element of
 * <TT>theRowRanges</TT> or
 * <TT>theColRanges</TT>.
 */
public static Unsigned16BitIntegerBuf[] patchBuffers(int[][] theMatrix, Range[] theRowRanges, Range[] theColRanges) {
    int m = theRowRanges.length;
    int n = theColRanges.length;
    Unsigned16BitIntegerBuf[] result = new Unsigned16BitIntegerBuf[m * n];
    int k = 0;
    for (int i = 0; i < m; ++i) {
        Range rowrange = theRowRanges[i];
        for (int j = 0; j < n; ++j) {
            result[k++] = patchBuffer(theMatrix, rowrange, theColRanges[j]);
        }
    }
    return result;
}

Example 69 with Range

use of edu.rit.util.Range in project ffx by mjschnie.

the class WorkerIntegerForLoop method workerExecuteNonFixed.

/**
 * Execute this worker for loop in a worker thread using a non-fixed
 * schedule.
 *
 * @param w Worker index.
 *
 * @exception Exception This method may throw any exception.
 */
void workerExecuteNonFixed(int w) throws Exception {
    Comm comm = myTeam.comm;
    int r = myTeam.masterRank();
    int tag = tagFor(w);
    start();
    ObjectItemBuf<Range> buf = ObjectBuf.buffer();
    for (; ; ) {
        comm.receive(r, tag, buf);
        Range range = buf.item;
        if (range == null) {
            break;
        }
        receiveTaskInput(range, comm, r, tag);
        run(range.lb(), range.ub());
        // messages, or the master can deadlock.
        synchronized (myTeam) {
            comm.send(r, tag, buf);
            sendTaskOutput(range, comm, r, tag);
        }
    }
    finish();
}

Example 70 with Range

use of edu.rit.util.Range in project ffx by mjschnie.

the class DynamicIntegerSchedule method next.

/**
 * {@inheritDoc}
 *
 * Obtain the next chunk of iterations for the given thread index. If there
 * are more iterations, a range object is returned whose lower bound, upper
 * bound, and stride specify the chunk of iterations to perform. The
 * returned range object's stride is the same as that given to the
 * <TT>start()</TT> method. The returned range object's lower bound and
 * upper bound are contained within the range given to the <TT>start()</TT>
 * method. If there are no more iterations, null is returned.
 * <P>
 * The <TT>next()</TT> method is called by multiple parallel team threads in
 * the Parallel Java middleware. The <TT>next()</TT> method must be multiple
 * thread safe.
 */
public Range next(int theThreadIndex) {
    for (; ; ) {
        int oldN1 = N1.get();
        Range result = myLoopRange.chunk(oldN1, N2);
        int N = result.length();
        if (N == 0) {
            return null;
        }
        int newN1 = oldN1 + N;
        if (N1.compareAndSet(oldN1, newN1)) {
            return result;
        }
    }
}