Examples with ZeroOutInstruction org.apache.sysml.runtime.instructions.mr.ZeroOutInstruction used on opensource projects

Example 1 with ZeroOutInstruction

use of org.apache.sysml.runtime.instructions.mr.ZeroOutInstruction in project incubator-systemml by apache.

the class MRBaseForCommonInstructions method processOneInstruction.

protected void processOneInstruction(MRInstruction ins, Class<? extends MatrixValue> valueClass, CachedValueMap cachedValues, IndexedMatrixValue tempValue, IndexedMatrixValue zeroInput) {
    if (ins instanceof AggregateBinaryInstruction) {
        byte input = ((AggregateBinaryInstruction) ins).input1;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof ZeroOutInstruction || ins instanceof AggregateUnaryInstruction || ins instanceof RangeBasedReIndexInstruction || ins instanceof CumulativeSplitInstruction) {
        byte input = ((UnaryMRInstructionBase) ins).input;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        if (ins instanceof CumulativeAggregateInstruction)
            ((CumulativeAggregateInstruction) ins).setMatrixCharacteristics(dim);
        if (ins instanceof CumulativeSplitInstruction)
            ((CumulativeSplitInstruction) ins).setMatrixCharacteristics(dim);
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof ReorgInstruction) {
        ReorgInstruction rinst = (ReorgInstruction) ins;
        byte input = rinst.input;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        rinst.setInputMatrixCharacteristics(dim);
        // MMCJMRMapper does not output empty blocks, no need to generate
        rinst.setOutputEmptyBlocks(!(this instanceof MMCJMRMapper));
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof MatrixReshapeMRInstruction) {
        MatrixReshapeMRInstruction mrins = (MatrixReshapeMRInstruction) ins;
        byte input = mrins.input;
        byte output = mrins.output;
        MatrixCharacteristics dimIn = dimensions.get(input);
        MatrixCharacteristics dimOut = dimensions.get(output);
        if (dimIn == null || dimOut == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        mrins.setMatrixCharacteristics(dimIn, dimOut);
        mrins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dimIn.getRowsPerBlock(), dimIn.getColsPerBlock());
    } else if (ins instanceof AppendMInstruction) {
        byte input = ((AppendMInstruction) ins).input1;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof BinaryMInstruction || ins instanceof RemoveEmptyMRInstruction) {
        byte input = ((BinaryMRInstructionBase) ins).input1;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof AppendGInstruction) {
        AppendGInstruction arinst = ((AppendGInstruction) ins);
        byte input = arinst.input1;
        MatrixCharacteristics dimIn = dimensions.get(input);
        if (dimIn == null)
            throw new DMLRuntimeException("Dimensions for instruction " + arinst + "  is unset!!!");
        arinst.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dimIn.getRowsPerBlock(), dimIn.getColsPerBlock());
    } else if (ins instanceof UnaryMRInstructionBase) {
        UnaryMRInstructionBase rinst = (UnaryMRInstructionBase) ins;
        MatrixCharacteristics dimIn = dimensions.get(rinst.input);
        if (dimIn == null)
            throw new DMLRuntimeException("Dimensions for instruction " + rinst + "  is unset!!!");
        rinst.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dimIn.getRowsPerBlock(), dimIn.getColsPerBlock());
    } else if (ins instanceof BinaryMRInstructionBase) {
        BinaryMRInstructionBase rinst = (BinaryMRInstructionBase) ins;
        MatrixCharacteristics dimIn = dimensions.get(rinst.input1);
        if (// not set for all
        dimIn != null)
            rinst.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dimIn.getRowsPerBlock(), dimIn.getColsPerBlock());
        else
            ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, -1, -1);
    } else
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, -1, -1);
// System.out.println(ins.getMRInstructionType()+" in "+time.stop());
}

Example 2 with ZeroOutInstruction

use of org.apache.sysml.runtime.instructions.mr.ZeroOutInstruction in project incubator-systemml by apache.

the class MatrixCharacteristics method computeDimension.

public static void computeDimension(HashMap<Byte, MatrixCharacteristics> dims, MRInstruction ins) {
    MatrixCharacteristics dimOut = dims.get(ins.output);
    if (dimOut == null) {
        dimOut = new MatrixCharacteristics();
        dims.put(ins.output, dimOut);
    }
    if (ins instanceof ReorgInstruction) {
        ReorgInstruction realIns = (ReorgInstruction) ins;
        reorg(dims.get(realIns.input), (ReorgOperator) realIns.getOperator(), dimOut);
    } else if (ins instanceof AppendInstruction) {
        AppendInstruction realIns = (AppendInstruction) ins;
        MatrixCharacteristics in_dim1 = dims.get(realIns.input1);
        MatrixCharacteristics in_dim2 = dims.get(realIns.input2);
        if (realIns.isCBind())
            dimOut.set(in_dim1.numRows, in_dim1.numColumns + in_dim2.numColumns, in_dim1.numRowsPerBlock, in_dim2.numColumnsPerBlock);
        else
            dimOut.set(in_dim1.numRows + in_dim2.numRows, in_dim1.numColumns, in_dim1.numRowsPerBlock, in_dim2.numColumnsPerBlock);
    } else if (ins instanceof CumulativeAggregateInstruction) {
        AggregateUnaryInstruction realIns = (AggregateUnaryInstruction) ins;
        MatrixCharacteristics in = dims.get(realIns.input);
        dimOut.set((long) Math.ceil((double) in.getRows() / in.getRowsPerBlock()), in.getCols(), in.getRowsPerBlock(), in.getColsPerBlock());
    } else if (ins instanceof AggregateUnaryInstruction) {
        AggregateUnaryInstruction realIns = (AggregateUnaryInstruction) ins;
        aggregateUnary(dims.get(realIns.input), (AggregateUnaryOperator) realIns.getOperator(), dimOut);
    } else if (ins instanceof AggregateBinaryInstruction) {
        AggregateBinaryInstruction realIns = (AggregateBinaryInstruction) ins;
        aggregateBinary(dims.get(realIns.input1), dims.get(realIns.input2), (AggregateBinaryOperator) realIns.getOperator(), dimOut);
    } else if (ins instanceof MapMultChainInstruction) {
        // output size independent of chain type
        MapMultChainInstruction realIns = (MapMultChainInstruction) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.getInput1());
        MatrixCharacteristics mc2 = dims.get(realIns.getInput2());
        dimOut.set(mc1.numColumns, mc2.numColumns, mc1.numRowsPerBlock, mc1.numColumnsPerBlock);
    } else if (ins instanceof QuaternaryInstruction) {
        QuaternaryInstruction realIns = (QuaternaryInstruction) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.getInput1());
        MatrixCharacteristics mc2 = dims.get(realIns.getInput2());
        MatrixCharacteristics mc3 = dims.get(realIns.getInput3());
        realIns.computeMatrixCharacteristics(mc1, mc2, mc3, dimOut);
    } else if (ins instanceof ReblockInstruction) {
        ReblockInstruction realIns = (ReblockInstruction) ins;
        MatrixCharacteristics in_dim = dims.get(realIns.input);
        dimOut.set(in_dim.numRows, in_dim.numColumns, realIns.brlen, realIns.bclen, in_dim.nonZero);
    } else if (ins instanceof MatrixReshapeMRInstruction) {
        MatrixReshapeMRInstruction mrinst = (MatrixReshapeMRInstruction) ins;
        MatrixCharacteristics in_dim = dims.get(mrinst.input);
        dimOut.set(mrinst.getNumRows(), mrinst.getNumColunms(), in_dim.getRowsPerBlock(), in_dim.getColsPerBlock(), in_dim.getNonZeros());
    } else if (ins instanceof RandInstruction || ins instanceof SeqInstruction) {
        DataGenMRInstruction dataIns = (DataGenMRInstruction) ins;
        dimOut.set(dims.get(dataIns.getInput()));
    } else if (ins instanceof ReplicateInstruction) {
        ReplicateInstruction realIns = (ReplicateInstruction) ins;
        realIns.computeOutputDimension(dims.get(realIns.input), dimOut);
    } else if (// before unary
    ins instanceof ParameterizedBuiltinMRInstruction) {
        ParameterizedBuiltinMRInstruction realIns = (ParameterizedBuiltinMRInstruction) ins;
        realIns.computeOutputCharacteristics(dims.get(realIns.input), dimOut);
    } else if (ins instanceof ScalarInstruction || ins instanceof AggregateInstruction || (ins instanceof UnaryInstruction && !(ins instanceof MMTSJMRInstruction)) || ins instanceof ZeroOutInstruction) {
        UnaryMRInstructionBase realIns = (UnaryMRInstructionBase) ins;
        dimOut.set(dims.get(realIns.input));
    } else if (ins instanceof MMTSJMRInstruction) {
        MMTSJMRInstruction mmtsj = (MMTSJMRInstruction) ins;
        MMTSJType tstype = mmtsj.getMMTSJType();
        MatrixCharacteristics mc = dims.get(mmtsj.input);
        dimOut.set(tstype.isLeft() ? mc.numColumns : mc.numRows, tstype.isLeft() ? mc.numColumns : mc.numRows, mc.numRowsPerBlock, mc.numColumnsPerBlock);
    } else if (ins instanceof PMMJMRInstruction) {
        PMMJMRInstruction pmmins = (PMMJMRInstruction) ins;
        MatrixCharacteristics mc = dims.get(pmmins.input2);
        dimOut.set(pmmins.getNumRows(), mc.numColumns, mc.numRowsPerBlock, mc.numColumnsPerBlock);
    } else if (ins instanceof RemoveEmptyMRInstruction) {
        RemoveEmptyMRInstruction realIns = (RemoveEmptyMRInstruction) ins;
        MatrixCharacteristics mc = dims.get(realIns.input1);
        long min = realIns.isEmptyReturn() ? 1 : 0;
        if (realIns.isRemoveRows())
            dimOut.set(Math.max(realIns.getOutputLen(), min), mc.getCols(), mc.numRowsPerBlock, mc.numColumnsPerBlock);
        else
            dimOut.set(mc.getRows(), Math.max(realIns.getOutputLen(), min), mc.numRowsPerBlock, mc.numColumnsPerBlock);
    } else if (// needs to be checked before binary
    ins instanceof UaggOuterChainInstruction) {
        UaggOuterChainInstruction realIns = (UaggOuterChainInstruction) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.input1);
        MatrixCharacteristics mc2 = dims.get(realIns.input2);
        realIns.computeOutputCharacteristics(mc1, mc2, dimOut);
    } else if (ins instanceof GroupedAggregateMInstruction) {
        GroupedAggregateMInstruction realIns = (GroupedAggregateMInstruction) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.input1);
        realIns.computeOutputCharacteristics(mc1, dimOut);
    } else if (ins instanceof BinaryInstruction || ins instanceof BinaryMInstruction || ins instanceof CombineBinaryInstruction) {
        BinaryMRInstructionBase realIns = (BinaryMRInstructionBase) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.input1);
        MatrixCharacteristics mc2 = dims.get(realIns.input2);
        if (mc1.getRows() > 1 && mc1.getCols() == 1 && mc2.getRows() == 1 && // outer
        mc2.getCols() > 1) {
            dimOut.set(mc1.getRows(), mc2.getCols(), mc1.getRowsPerBlock(), mc2.getColsPerBlock());
        } else {
            // default case
            dimOut.set(mc1);
        }
    } else if (ins instanceof TernaryInstruction) {
        dimOut.set(dims.get(ins.getInputIndexes()[0]));
    } else if (ins instanceof CombineTernaryInstruction) {
        CtableInstruction realIns = (CtableInstruction) ins;
        dimOut.set(dims.get(realIns.input1));
    } else if (ins instanceof CombineUnaryInstruction) {
        dimOut.set(dims.get(((CombineUnaryInstruction) ins).input));
    } else if (ins instanceof CM_N_COVInstruction || ins instanceof GroupedAggregateInstruction) {
        dimOut.set(1, 1, 1, 1);
    } else if (ins instanceof RangeBasedReIndexInstruction) {
        RangeBasedReIndexInstruction realIns = (RangeBasedReIndexInstruction) ins;
        MatrixCharacteristics dimIn = dims.get(realIns.input);
        realIns.computeOutputCharacteristics(dimIn, dimOut);
    } else if (ins instanceof CtableInstruction) {
        CtableInstruction realIns = (CtableInstruction) ins;
        MatrixCharacteristics in_dim = dims.get(realIns.input1);
        dimOut.set(realIns.getOutputDim1(), realIns.getOutputDim2(), in_dim.numRowsPerBlock, in_dim.numColumnsPerBlock);
    } else {
        /*
			 * if ins is none of the above cases then we assume that dim_out dimensions are unknown
			 */
        dimOut.numRows = -1;
        dimOut.numColumns = -1;
        dimOut.numRowsPerBlock = 1;
        dimOut.numColumnsPerBlock = 1;
    }
}

Example 3 with ZeroOutInstruction

use of org.apache.sysml.runtime.instructions.mr.ZeroOutInstruction in project systemml by apache.

the class MRBaseForCommonInstructions method processOneInstruction.

protected void processOneInstruction(MRInstruction ins, Class<? extends MatrixValue> valueClass, CachedValueMap cachedValues, IndexedMatrixValue tempValue, IndexedMatrixValue zeroInput) {
    if (ins instanceof AggregateBinaryInstruction) {
        byte input = ((AggregateBinaryInstruction) ins).input1;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof ZeroOutInstruction || ins instanceof AggregateUnaryInstruction || ins instanceof RangeBasedReIndexInstruction || ins instanceof CumulativeSplitInstruction) {
        byte input = ((UnaryMRInstructionBase) ins).input;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        if (ins instanceof CumulativeAggregateInstruction)
            ((CumulativeAggregateInstruction) ins).setMatrixCharacteristics(dim);
        if (ins instanceof CumulativeSplitInstruction)
            ((CumulativeSplitInstruction) ins).setMatrixCharacteristics(dim);
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof ReorgInstruction) {
        ReorgInstruction rinst = (ReorgInstruction) ins;
        byte input = rinst.input;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        rinst.setInputMatrixCharacteristics(dim);
        // MMCJMRMapper does not output empty blocks, no need to generate
        rinst.setOutputEmptyBlocks(!(this instanceof MMCJMRMapper));
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof MatrixReshapeMRInstruction) {
        MatrixReshapeMRInstruction mrins = (MatrixReshapeMRInstruction) ins;
        byte input = mrins.input;
        byte output = mrins.output;
        MatrixCharacteristics dimIn = dimensions.get(input);
        MatrixCharacteristics dimOut = dimensions.get(output);
        if (dimIn == null || dimOut == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        mrins.setMatrixCharacteristics(dimIn, dimOut);
        mrins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dimIn.getRowsPerBlock(), dimIn.getColsPerBlock());
    } else if (ins instanceof AppendMInstruction) {
        byte input = ((AppendMInstruction) ins).input1;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof BinaryMInstruction || ins instanceof RemoveEmptyMRInstruction) {
        byte input = ((BinaryMRInstructionBase) ins).input1;
        MatrixCharacteristics dim = dimensions.get(input);
        if (dim == null)
            throw new DMLRuntimeException("dimension for instruction " + ins + "  is unset!!!");
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dim.getRowsPerBlock(), dim.getColsPerBlock());
    } else if (ins instanceof AppendGInstruction) {
        AppendGInstruction arinst = ((AppendGInstruction) ins);
        byte input = arinst.input1;
        MatrixCharacteristics dimIn = dimensions.get(input);
        if (dimIn == null)
            throw new DMLRuntimeException("Dimensions for instruction " + arinst + "  is unset!!!");
        arinst.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dimIn.getRowsPerBlock(), dimIn.getColsPerBlock());
    } else if (ins instanceof UnaryMRInstructionBase) {
        UnaryMRInstructionBase rinst = (UnaryMRInstructionBase) ins;
        MatrixCharacteristics dimIn = dimensions.get(rinst.input);
        if (dimIn == null)
            throw new DMLRuntimeException("Dimensions for instruction " + rinst + "  is unset!!!");
        rinst.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dimIn.getRowsPerBlock(), dimIn.getColsPerBlock());
    } else if (ins instanceof BinaryMRInstructionBase) {
        BinaryMRInstructionBase rinst = (BinaryMRInstructionBase) ins;
        MatrixCharacteristics dimIn = dimensions.get(rinst.input1);
        if (// not set for all
        dimIn != null)
            rinst.processInstruction(valueClass, cachedValues, tempValue, zeroInput, dimIn.getRowsPerBlock(), dimIn.getColsPerBlock());
        else
            ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, -1, -1);
    } else
        ins.processInstruction(valueClass, cachedValues, tempValue, zeroInput, -1, -1);
// System.out.println(ins.getMRInstructionType()+" in "+time.stop());
}

Example 4 with ZeroOutInstruction

use of org.apache.sysml.runtime.instructions.mr.ZeroOutInstruction in project systemml by apache.

the class MatrixCharacteristics method computeDimension.

public static void computeDimension(HashMap<Byte, MatrixCharacteristics> dims, MRInstruction ins) {
    MatrixCharacteristics dimOut = dims.get(ins.output);
    if (dimOut == null) {
        dimOut = new MatrixCharacteristics();
        dims.put(ins.output, dimOut);
    }
    if (ins instanceof ReorgInstruction) {
        ReorgInstruction realIns = (ReorgInstruction) ins;
        reorg(dims.get(realIns.input), (ReorgOperator) realIns.getOperator(), dimOut);
    } else if (ins instanceof AppendInstruction) {
        AppendInstruction realIns = (AppendInstruction) ins;
        MatrixCharacteristics in_dim1 = dims.get(realIns.input1);
        MatrixCharacteristics in_dim2 = dims.get(realIns.input2);
        if (realIns.isCBind())
            dimOut.set(in_dim1.numRows, in_dim1.numColumns + in_dim2.numColumns, in_dim1.numRowsPerBlock, in_dim2.numColumnsPerBlock);
        else
            dimOut.set(in_dim1.numRows + in_dim2.numRows, in_dim1.numColumns, in_dim1.numRowsPerBlock, in_dim2.numColumnsPerBlock);
    } else if (ins instanceof CumulativeAggregateInstruction) {
        AggregateUnaryInstruction realIns = (AggregateUnaryInstruction) ins;
        MatrixCharacteristics in = dims.get(realIns.input);
        dimOut.set((long) Math.ceil((double) in.getRows() / in.getRowsPerBlock()), in.getCols(), in.getRowsPerBlock(), in.getColsPerBlock());
    } else if (ins instanceof AggregateUnaryInstruction) {
        AggregateUnaryInstruction realIns = (AggregateUnaryInstruction) ins;
        aggregateUnary(dims.get(realIns.input), (AggregateUnaryOperator) realIns.getOperator(), dimOut);
    } else if (ins instanceof AggregateBinaryInstruction) {
        AggregateBinaryInstruction realIns = (AggregateBinaryInstruction) ins;
        aggregateBinary(dims.get(realIns.input1), dims.get(realIns.input2), (AggregateBinaryOperator) realIns.getOperator(), dimOut);
    } else if (ins instanceof MapMultChainInstruction) {
        // output size independent of chain type
        MapMultChainInstruction realIns = (MapMultChainInstruction) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.getInput1());
        MatrixCharacteristics mc2 = dims.get(realIns.getInput2());
        dimOut.set(mc1.numColumns, mc2.numColumns, mc1.numRowsPerBlock, mc1.numColumnsPerBlock);
    } else if (ins instanceof QuaternaryInstruction) {
        QuaternaryInstruction realIns = (QuaternaryInstruction) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.getInput1());
        MatrixCharacteristics mc2 = dims.get(realIns.getInput2());
        MatrixCharacteristics mc3 = dims.get(realIns.getInput3());
        realIns.computeMatrixCharacteristics(mc1, mc2, mc3, dimOut);
    } else if (ins instanceof ReblockInstruction) {
        ReblockInstruction realIns = (ReblockInstruction) ins;
        MatrixCharacteristics in_dim = dims.get(realIns.input);
        dimOut.set(in_dim.numRows, in_dim.numColumns, realIns.brlen, realIns.bclen, in_dim.nonZero);
    } else if (ins instanceof MatrixReshapeMRInstruction) {
        MatrixReshapeMRInstruction mrinst = (MatrixReshapeMRInstruction) ins;
        MatrixCharacteristics in_dim = dims.get(mrinst.input);
        dimOut.set(mrinst.getNumRows(), mrinst.getNumColunms(), in_dim.getRowsPerBlock(), in_dim.getColsPerBlock(), in_dim.getNonZeros());
    } else if (ins instanceof RandInstruction || ins instanceof SeqInstruction) {
        DataGenMRInstruction dataIns = (DataGenMRInstruction) ins;
        dimOut.set(dims.get(dataIns.getInput()));
    } else if (ins instanceof ReplicateInstruction) {
        ReplicateInstruction realIns = (ReplicateInstruction) ins;
        realIns.computeOutputDimension(dims.get(realIns.input), dimOut);
    } else if (// before unary
    ins instanceof ParameterizedBuiltinMRInstruction) {
        ParameterizedBuiltinMRInstruction realIns = (ParameterizedBuiltinMRInstruction) ins;
        realIns.computeOutputCharacteristics(dims.get(realIns.input), dimOut);
    } else if (ins instanceof ScalarInstruction || ins instanceof AggregateInstruction || (ins instanceof UnaryInstruction && !(ins instanceof MMTSJMRInstruction)) || ins instanceof ZeroOutInstruction) {
        UnaryMRInstructionBase realIns = (UnaryMRInstructionBase) ins;
        dimOut.set(dims.get(realIns.input));
    } else if (ins instanceof MMTSJMRInstruction) {
        MMTSJMRInstruction mmtsj = (MMTSJMRInstruction) ins;
        MMTSJType tstype = mmtsj.getMMTSJType();
        MatrixCharacteristics mc = dims.get(mmtsj.input);
        dimOut.set(tstype.isLeft() ? mc.numColumns : mc.numRows, tstype.isLeft() ? mc.numColumns : mc.numRows, mc.numRowsPerBlock, mc.numColumnsPerBlock);
    } else if (ins instanceof PMMJMRInstruction) {
        PMMJMRInstruction pmmins = (PMMJMRInstruction) ins;
        MatrixCharacteristics mc = dims.get(pmmins.input2);
        dimOut.set(pmmins.getNumRows(), mc.numColumns, mc.numRowsPerBlock, mc.numColumnsPerBlock);
    } else if (ins instanceof RemoveEmptyMRInstruction) {
        RemoveEmptyMRInstruction realIns = (RemoveEmptyMRInstruction) ins;
        MatrixCharacteristics mc = dims.get(realIns.input1);
        long min = realIns.isEmptyReturn() ? 1 : 0;
        if (realIns.isRemoveRows())
            dimOut.set(Math.max(realIns.getOutputLen(), min), mc.getCols(), mc.numRowsPerBlock, mc.numColumnsPerBlock);
        else
            dimOut.set(mc.getRows(), Math.max(realIns.getOutputLen(), min), mc.numRowsPerBlock, mc.numColumnsPerBlock);
    } else if (// needs to be checked before binary
    ins instanceof UaggOuterChainInstruction) {
        UaggOuterChainInstruction realIns = (UaggOuterChainInstruction) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.input1);
        MatrixCharacteristics mc2 = dims.get(realIns.input2);
        realIns.computeOutputCharacteristics(mc1, mc2, dimOut);
    } else if (ins instanceof GroupedAggregateMInstruction) {
        GroupedAggregateMInstruction realIns = (GroupedAggregateMInstruction) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.input1);
        realIns.computeOutputCharacteristics(mc1, dimOut);
    } else if (ins instanceof BinaryInstruction || ins instanceof BinaryMInstruction || ins instanceof CombineBinaryInstruction) {
        BinaryMRInstructionBase realIns = (BinaryMRInstructionBase) ins;
        MatrixCharacteristics mc1 = dims.get(realIns.input1);
        MatrixCharacteristics mc2 = dims.get(realIns.input2);
        if (mc1.getRows() > 1 && mc1.getCols() == 1 && mc2.getRows() == 1 && // outer
        mc2.getCols() > 1) {
            dimOut.set(mc1.getRows(), mc2.getCols(), mc1.getRowsPerBlock(), mc2.getColsPerBlock());
        } else {
            // default case
            dimOut.set(mc1);
        }
    } else if (ins instanceof TernaryInstruction) {
        dimOut.set(dims.get(ins.getInputIndexes()[0]));
    } else if (ins instanceof CombineTernaryInstruction) {
        CtableInstruction realIns = (CtableInstruction) ins;
        dimOut.set(dims.get(realIns.input1));
    } else if (ins instanceof CombineUnaryInstruction) {
        dimOut.set(dims.get(((CombineUnaryInstruction) ins).input));
    } else if (ins instanceof CM_N_COVInstruction || ins instanceof GroupedAggregateInstruction) {
        dimOut.set(1, 1, 1, 1);
    } else if (ins instanceof RangeBasedReIndexInstruction) {
        RangeBasedReIndexInstruction realIns = (RangeBasedReIndexInstruction) ins;
        MatrixCharacteristics dimIn = dims.get(realIns.input);
        realIns.computeOutputCharacteristics(dimIn, dimOut);
    } else if (ins instanceof CtableInstruction) {
        CtableInstruction realIns = (CtableInstruction) ins;
        MatrixCharacteristics in_dim = dims.get(realIns.input1);
        dimOut.set(realIns.getOutputDim1(), realIns.getOutputDim2(), in_dim.numRowsPerBlock, in_dim.numColumnsPerBlock);
    } else {
        /*
			 * if ins is none of the above cases then we assume that dim_out dimensions are unknown
			 */
        dimOut.numRows = -1;
        dimOut.numColumns = -1;
        dimOut.numRowsPerBlock = 1;
        dimOut.numColumnsPerBlock = 1;
    }
}