Examples with IndexRange org.apache.sysml.runtime.util.IndexRange used on opensource projects

Example 21 with IndexRange

use of org.apache.sysml.runtime.util.IndexRange in project systemml by apache.

the class OperationsOnMatrixValues method performSlice.

/**
 * This function will get slice of the input frame block overlapping in overall slice(Range), slice has requested for.
 *
 * @param in ?
 * @param ixrange index range
 * @param brlen number of rows in a block
 * @param bclen number of columns in a block
 * @param outlist list of pairs of frame blocks
 */
public static void performSlice(Pair<Long, FrameBlock> in, IndexRange ixrange, int brlen, int bclen, ArrayList<Pair<Long, FrameBlock>> outlist) {
    long index = in.getKey();
    FrameBlock block = in.getValue();
    // Get Block indexes (rows and columns boundaries)
    long cellIndexTopRow = index;
    long cellIndexBottomRow = index + block.getNumRows() - 1;
    long cellIndexLeftCol = 1;
    long cellIndexRightCol = block.getNumColumns();
    // Calculate block boundaries with range of slice to be performed (Global index)
    long cellIndexOverlapTop = Math.max(cellIndexTopRow, ixrange.rowStart);
    long cellIndexOverlapBottom = Math.min(cellIndexBottomRow, ixrange.rowEnd);
    long cellIndexOverlapLeft = Math.max(cellIndexLeftCol, ixrange.colStart);
    long cellIndexOverlapRight = Math.min(cellIndexRightCol, ixrange.colEnd);
    // check if block is outside the indexing range
    if (cellIndexOverlapTop > cellIndexOverlapBottom || cellIndexOverlapLeft > cellIndexOverlapRight) {
        return;
    }
    // Create IndexRange for the slice to be performed on this block.
    IndexRange tmpRange = new IndexRange(cellIndexOverlapTop - index, cellIndexOverlapBottom - index, cellIndexOverlapLeft - 1, cellIndexOverlapRight - 1);
    // Get Top Row and Left column cutting point.
    int rowCut = (int) (ixrange.rowStart - index);
    // Get indices for result block
    long resultBlockIndexTop = UtilFunctions.computeBlockIndex(cellIndexOverlapTop, brlen);
    long resultBlockIndexBottom = UtilFunctions.computeBlockIndex(cellIndexOverlapBottom, brlen);
    // allocate space for the output value
    for (long r = resultBlockIndexTop; r <= resultBlockIndexBottom; r++) {
        ValueType[] schema = Arrays.copyOfRange(block.getSchema(), (int) tmpRange.colStart, (int) tmpRange.colEnd + 1);
        long iResultIndex = Math.max(((r - 1) * brlen - ixrange.rowStart + 1), 0);
        Pair<Long, FrameBlock> out = new Pair<>(new Long(iResultIndex + 1), new FrameBlock(schema));
        outlist.add(out);
    }
    // execute actual slice operation
    block.slice(outlist, tmpRange, rowCut);
}

Example 22 with IndexRange

use of org.apache.sysml.runtime.util.IndexRange in project systemml by apache.

the class FrameIndexingSPInstruction method processInstruction.

@Override
public void processInstruction(ExecutionContext ec) {
    SparkExecutionContext sec = (SparkExecutionContext) ec;
    String opcode = getOpcode();
    // get indexing range
    long rl = ec.getScalarInput(rowLower.getName(), rowLower.getValueType(), rowLower.isLiteral()).getLongValue();
    long ru = ec.getScalarInput(rowUpper.getName(), rowUpper.getValueType(), rowUpper.isLiteral()).getLongValue();
    long cl = ec.getScalarInput(colLower.getName(), colLower.getValueType(), colLower.isLiteral()).getLongValue();
    long cu = ec.getScalarInput(colUpper.getName(), colUpper.getValueType(), colUpper.isLiteral()).getLongValue();
    IndexRange ixrange = new IndexRange(rl, ru, cl, cu);
    // right indexing
    if (opcode.equalsIgnoreCase(RightIndex.OPCODE)) {
        // update and check output dimensions
        MatrixCharacteristics mcIn = sec.getMatrixCharacteristics(input1.getName());
        MatrixCharacteristics mcOut = sec.getMatrixCharacteristics(output.getName());
        mcOut.set(ru - rl + 1, cu - cl + 1, mcIn.getRowsPerBlock(), mcIn.getColsPerBlock());
        checkValidOutputDimensions(mcOut);
        // execute right indexing operation (partitioning-preserving if possible)
        JavaPairRDD<Long, FrameBlock> in1 = sec.getFrameBinaryBlockRDDHandleForVariable(input1.getName());
        JavaPairRDD<Long, FrameBlock> out = null;
        if (isPartitioningPreservingRightIndexing(mcIn, ixrange)) {
            out = in1.mapPartitionsToPair(new SliceBlockPartitionFunction(ixrange, mcOut), true);
        } else {
            out = in1.filter(new IsFrameBlockInRange(rl, ru, mcOut)).mapToPair(new SliceBlock(ixrange, mcOut));
        }
        // put output RDD handle into symbol table
        sec.setRDDHandleForVariable(output.getName(), out);
        sec.addLineageRDD(output.getName(), input1.getName());
        // update schema of output with subset of input schema
        sec.getFrameObject(output.getName()).setSchema(sec.getFrameObject(input1.getName()).getSchema((int) cl, (int) cu));
    } else // left indexing
    if (opcode.equalsIgnoreCase(LeftIndex.OPCODE) || opcode.equalsIgnoreCase("mapLeftIndex")) {
        JavaPairRDD<Long, FrameBlock> in1 = sec.getFrameBinaryBlockRDDHandleForVariable(input1.getName());
        PartitionedBroadcast<FrameBlock> broadcastIn2 = null;
        JavaPairRDD<Long, FrameBlock> in2 = null;
        JavaPairRDD<Long, FrameBlock> out = null;
        // update and check output dimensions
        MatrixCharacteristics mcOut = sec.getMatrixCharacteristics(output.getName());
        MatrixCharacteristics mcLeft = ec.getMatrixCharacteristics(input1.getName());
        mcOut.set(mcLeft.getRows(), mcLeft.getCols(), mcLeft.getRowsPerBlock(), mcLeft.getColsPerBlock());
        checkValidOutputDimensions(mcOut);
        // note: always frame rhs, scalars are preprocessed via cast to 1x1 frame
        MatrixCharacteristics mcRight = ec.getMatrixCharacteristics(input2.getName());
        // sanity check matching index range and rhs dimensions
        if (!mcRight.dimsKnown()) {
            throw new DMLRuntimeException("The right input frame dimensions are not specified for FrameIndexingSPInstruction");
        }
        if (!(ru - rl + 1 == mcRight.getRows() && cu - cl + 1 == mcRight.getCols())) {
            throw new DMLRuntimeException("Invalid index range of leftindexing: [" + rl + ":" + ru + "," + cl + ":" + cu + "] vs [" + mcRight.getRows() + "x" + mcRight.getCols() + "].");
        }
        if (opcode.equalsIgnoreCase("mapLeftIndex")) {
            broadcastIn2 = sec.getBroadcastForFrameVariable(input2.getName());
            // partitioning-preserving mappartitions (key access required for broadcast loopkup)
            out = in1.mapPartitionsToPair(new LeftIndexPartitionFunction(broadcastIn2, ixrange, mcOut), true);
        } else {
            // general case
            // zero-out lhs
            in1 = in1.flatMapToPair(new ZeroOutLHS(false, ixrange, mcLeft));
            // slice rhs, shift and merge with lhs
            in2 = sec.getFrameBinaryBlockRDDHandleForVariable(input2.getName()).flatMapToPair(new SliceRHSForLeftIndexing(ixrange, mcLeft));
            out = FrameRDDAggregateUtils.mergeByKey(in1.union(in2));
        }
        sec.setRDDHandleForVariable(output.getName(), out);
        sec.addLineageRDD(output.getName(), input1.getName());
        if (broadcastIn2 != null)
            sec.addLineageBroadcast(output.getName(), input2.getName());
        if (in2 != null)
            sec.addLineageRDD(output.getName(), input2.getName());
    } else
        throw new DMLRuntimeException("Invalid opcode (" + opcode + ") encountered in FrameIndexingSPInstruction.");
}

Example 23 with IndexRange

use of org.apache.sysml.runtime.util.IndexRange in project systemml by apache.

the class PartitionedBlock method slice.

/**
 * Utility for slice operations over partitioned matrices, where the index range can cover
 * multiple blocks. The result is always a single result matrix block. All semantics are
 * equivalent to the core matrix block slice operations.
 *
 * @param rl row lower bound
 * @param ru row upper bound
 * @param cl column lower bound
 * @param cu column upper bound
 * @param block block object
 * @return block object
 */
@SuppressWarnings("unchecked")
public T slice(long rl, long ru, long cl, long cu, T block) {
    int lrl = (int) rl;
    int lru = (int) ru;
    int lcl = (int) cl;
    int lcu = (int) cu;
    ArrayList<Pair<?, ?>> allBlks = (ArrayList<Pair<?, ?>>) CacheBlockFactory.getPairList(block);
    int start_iix = (lrl - 1) / _brlen + 1;
    int end_iix = (lru - 1) / _brlen + 1;
    int start_jix = (lcl - 1) / _bclen + 1;
    int end_jix = (lcu - 1) / _bclen + 1;
    for (int iix = start_iix; iix <= end_iix; iix++) for (int jix = start_jix; jix <= end_jix; jix++) {
        IndexRange ixrange = new IndexRange(rl, ru, cl, cu);
        allBlks.addAll(OperationsOnMatrixValues.performSlice(ixrange, _brlen, _bclen, iix, jix, getBlock(iix, jix)));
    }
    if (allBlks.size() == 1) {
        return (T) allBlks.get(0).getValue();
    } else {
        // allocate output matrix
        Constructor<?> constr;
        try {
            constr = block.getClass().getConstructor(int.class, int.class, boolean.class);
            T ret = (T) constr.newInstance(lru - lrl + 1, lcu - lcl + 1, false);
            for (Pair<?, ?> kv : allBlks) {
                ret.merge((T) kv.getValue(), false);
            }
            return ret;
        } catch (Exception e) {
            throw new DMLRuntimeException(e);
        }
    }
}