Examples with CNode org.apache.sysml.hops.codegen.cplan.CNode used on opensource projects

Example 1 with CNode

use of org.apache.sysml.hops.codegen.cplan.CNode in project incubator-systemml by apache.

the class SpoofCompiler method cleanupCPlans.

/**
	 * Cleanup generated cplans in order to remove unnecessary inputs created
	 * during incremental construction. This is important as it avoids unnecessary 
	 * redundant computation. 
	 * 
	 * @param cplans set of cplans
	 */
private static HashMap<Long, Pair<Hop[], CNodeTpl>> cleanupCPlans(HashMap<Long, Pair<Hop[], CNodeTpl>> cplans) {
    HashMap<Long, Pair<Hop[], CNodeTpl>> cplans2 = new HashMap<Long, Pair<Hop[], CNodeTpl>>();
    for (Entry<Long, Pair<Hop[], CNodeTpl>> e : cplans.entrySet()) {
        CNodeTpl tpl = e.getValue().getValue();
        Hop[] inHops = e.getValue().getKey();
        //collect cplan leaf node names
        HashSet<Long> leafs = new HashSet<Long>();
        if (tpl instanceof CNodeMultiAgg)
            for (CNode out : ((CNodeMultiAgg) tpl).getOutputs()) rCollectLeafIDs(out, leafs);
        else
            rCollectLeafIDs(tpl.getOutput(), leafs);
        //create clean cplan w/ minimal inputs
        if (inHops.length == leafs.size())
            cplans2.put(e.getKey(), e.getValue());
        else {
            tpl.cleanupInputs(leafs);
            ArrayList<Hop> tmp = new ArrayList<Hop>();
            for (Hop hop : inHops) {
                if (hop != null && leafs.contains(hop.getHopID()))
                    tmp.add(hop);
            }
            cplans2.put(e.getKey(), new Pair<Hop[], CNodeTpl>(tmp.toArray(new Hop[0]), tpl));
        }
        //remove invalid plans with column indexing on main input
        if (tpl instanceof CNodeCell) {
            CNodeData in1 = (CNodeData) tpl.getInput().get(0);
            if (rHasLookupRC1(tpl.getOutput(), in1) || isLookupRC1(tpl.getOutput(), in1)) {
                cplans2.remove(e.getKey());
                if (LOG.isTraceEnabled())
                    LOG.trace("Removed cplan due to invalid rc1 indexing on main input.");
            }
        } else if (tpl instanceof CNodeMultiAgg) {
            CNodeData in1 = (CNodeData) tpl.getInput().get(0);
            for (CNode output : ((CNodeMultiAgg) tpl).getOutputs()) if (rHasLookupRC1(output, in1) || isLookupRC1(output, in1)) {
                cplans2.remove(e.getKey());
                if (LOG.isTraceEnabled())
                    LOG.trace("Removed cplan due to invalid rc1 indexing on main input.");
            }
        }
        //remove spurious lookups on main input of cell template
        if (tpl instanceof CNodeCell || tpl instanceof CNodeOuterProduct) {
            CNodeData in1 = (CNodeData) tpl.getInput().get(0);
            rFindAndRemoveLookup(tpl.getOutput(), in1);
        } else if (tpl instanceof CNodeMultiAgg) {
            CNodeData in1 = (CNodeData) tpl.getInput().get(0);
            rFindAndRemoveLookupMultiAgg((CNodeMultiAgg) tpl, in1);
        }
        //remove cplan w/ single op and w/o agg
        if ((tpl instanceof CNodeCell && ((((CNodeCell) tpl).getCellType() == CellType.NO_AGG && TemplateUtils.hasSingleOperation(tpl)) || TemplateUtils.hasNoOperation(tpl))) || tpl instanceof CNodeRow && TemplateUtils.hasSingleOperation(tpl))
            cplans2.remove(e.getKey());
        //remove cplan if empty
        if (tpl.getOutput() instanceof CNodeData)
            cplans2.remove(e.getKey());
    }
    return cplans2;
}

Example 2 with CNode

use of org.apache.sysml.hops.codegen.cplan.CNode in project incubator-systemml by apache.

the class TemplateUtils method countVectorIntermediates.

public static int countVectorIntermediates(CNode node, HashSet<Long> memo) {
    //memoization to prevent double counting
    if (memo.contains(node.getID()))
        return 0;
    memo.add(node.getID());
    //compute vector requirements over all inputs
    int ret = 0;
    for (CNode c : node.getInput()) ret += countVectorIntermediates(c, memo);
    //compute vector requirements of current node
    int cntBin = (node instanceof CNodeBinary && (((CNodeBinary) node).getType().isVectorScalarPrimitive() || ((CNodeBinary) node).getType().isVectorVectorPrimitive())) ? 1 : 0;
    int cntUn = (node instanceof CNodeUnary && ((CNodeUnary) node).getType().isVectorScalarPrimitive()) ? 1 : 0;
    return ret + cntBin + cntUn;
}

Example 3 with CNode

use of org.apache.sysml.hops.codegen.cplan.CNode in project incubator-systemml by apache.

the class SpoofCompiler method cleanupCPlans.

/**
 * Cleanup generated cplans in order to remove unnecessary inputs created
 * during incremental construction. This is important as it avoids unnecessary
 * redundant computation.
 *
 * @param memo memoization table
 * @param cplans set of cplans
 */
private static HashMap<Long, Pair<Hop[], CNodeTpl>> cleanupCPlans(CPlanMemoTable memo, HashMap<Long, Pair<Hop[], CNodeTpl>> cplans) {
    HashMap<Long, Pair<Hop[], CNodeTpl>> cplans2 = new HashMap<>();
    CPlanOpRewriter rewriter = new CPlanOpRewriter();
    CPlanCSERewriter cse = new CPlanCSERewriter();
    for (Entry<Long, Pair<Hop[], CNodeTpl>> e : cplans.entrySet()) {
        CNodeTpl tpl = e.getValue().getValue();
        Hop[] inHops = e.getValue().getKey();
        // remove invalid plans with null inputs
        if (Arrays.stream(inHops).anyMatch(h -> (h == null)))
            continue;
        // perform simplifications and cse rewrites
        tpl = rewriter.simplifyCPlan(tpl);
        tpl = cse.eliminateCommonSubexpressions(tpl);
        // update input hops (order-preserving)
        HashSet<Long> inputHopIDs = tpl.getInputHopIDs(false);
        inHops = Arrays.stream(inHops).filter(p -> p != null && inputHopIDs.contains(p.getHopID())).toArray(Hop[]::new);
        cplans2.put(e.getKey(), new Pair<>(inHops, tpl));
        // remove invalid plans with column indexing on main input
        if (tpl instanceof CNodeCell || tpl instanceof CNodeRow) {
            CNodeData in1 = (CNodeData) tpl.getInput().get(0);
            boolean inclRC1 = !(tpl instanceof CNodeRow);
            if (rHasLookupRC1(tpl.getOutput(), in1, inclRC1) || isLookupRC1(tpl.getOutput(), in1, inclRC1)) {
                cplans2.remove(e.getKey());
                if (LOG.isTraceEnabled())
                    LOG.trace("Removed cplan due to invalid rc1 indexing on main input.");
            }
        } else if (tpl instanceof CNodeMultiAgg) {
            CNodeData in1 = (CNodeData) tpl.getInput().get(0);
            for (CNode output : ((CNodeMultiAgg) tpl).getOutputs()) if (rHasLookupRC1(output, in1, true) || isLookupRC1(output, in1, true)) {
                cplans2.remove(e.getKey());
                if (LOG.isTraceEnabled())
                    LOG.trace("Removed cplan due to invalid rc1 indexing on main input.");
            }
        }
        // remove invalid lookups on main input (all templates)
        CNodeData in1 = (CNodeData) tpl.getInput().get(0);
        if (tpl instanceof CNodeMultiAgg)
            rFindAndRemoveLookupMultiAgg((CNodeMultiAgg) tpl, in1);
        else
            rFindAndRemoveLookup(tpl.getOutput(), in1, !(tpl instanceof CNodeRow));
        // remove invalid row templates (e.g., unsatisfied blocksize constraint)
        if (tpl instanceof CNodeRow) {
            // check for invalid row cplan over column vector
            if (((CNodeRow) tpl).getRowType() == RowType.NO_AGG && tpl.getOutput().getDataType().isScalar()) {
                cplans2.remove(e.getKey());
                if (LOG.isTraceEnabled())
                    LOG.trace("Removed invalid row cplan w/o agg on column vector.");
            } else if (OptimizerUtils.isSparkExecutionMode()) {
                Hop hop = memo.getHopRefs().get(e.getKey());
                boolean isSpark = DMLScript.rtplatform == RUNTIME_PLATFORM.SPARK || OptimizerUtils.getTotalMemEstimate(inHops, hop, true) > OptimizerUtils.getLocalMemBudget();
                boolean invalidNcol = hop.getDataType().isMatrix() && (HopRewriteUtils.isTransposeOperation(hop) ? hop.getDim1() > hop.getRowsInBlock() : hop.getDim2() > hop.getColsInBlock());
                for (Hop in : inHops) invalidNcol |= (in.getDataType().isMatrix() && in.getDim2() > in.getColsInBlock());
                if (isSpark && invalidNcol) {
                    cplans2.remove(e.getKey());
                    if (LOG.isTraceEnabled())
                        LOG.trace("Removed invalid row cplan w/ ncol>ncolpb.");
                }
            }
        }
        // remove cplan w/ single op and w/o agg
        if ((tpl instanceof CNodeCell && ((CNodeCell) tpl).getCellType() == CellType.NO_AGG && TemplateUtils.hasSingleOperation(tpl)) || (tpl instanceof CNodeRow && (((CNodeRow) tpl).getRowType() == RowType.NO_AGG || ((CNodeRow) tpl).getRowType() == RowType.NO_AGG_B1 || ((CNodeRow) tpl).getRowType() == RowType.ROW_AGG) && TemplateUtils.hasSingleOperation(tpl)) || TemplateUtils.hasNoOperation(tpl)) {
            cplans2.remove(e.getKey());
            if (LOG.isTraceEnabled())
                LOG.trace("Removed cplan with single operation.");
        }
        // remove cplan if empty
        if (tpl.getOutput() instanceof CNodeData) {
            cplans2.remove(e.getKey());
            if (LOG.isTraceEnabled())
                LOG.trace("Removed empty cplan.");
        }
        // rename inputs (for codegen and plan caching)
        tpl.renameInputs();
    }
    return cplans2;
}

Example 4 with CNode

use of org.apache.sysml.hops.codegen.cplan.CNode in project incubator-systemml by apache.

the class CPlanCSERewriter method rSetStrictDataNodeComparision.

private void rSetStrictDataNodeComparision(CNode current, boolean flag) {
    // avoid redundant re-evaluation
    if (current.isVisited())
        return;
    // process inputs recursively and node itself
    for (CNode input : current.getInput()) {
        rSetStrictDataNodeComparision(input, flag);
        input.resetHash();
    }
    if (current instanceof CNodeData)
        ((CNodeData) current).setStrictEquals(flag);
    current.setVisited();
}

Example 5 with CNode

use of org.apache.sysml.hops.codegen.cplan.CNode in project incubator-systemml by apache.

the class CPlanCSERewriter method rEliminateCommonSubexpression.

private void rEliminateCommonSubexpression(CNode current, HashMap<CNode, CNode> cseSet) {
    // avoid redundant re-evaluation
    if (current.isVisited())
        return;
    // replace input with existing common subexpression
    for (int i = 0; i < current.getInput().size(); i++) {
        CNode input = current.getInput().get(i);
        if (cseSet.containsKey(input))
            current.getInput().set(i, cseSet.get(input));
    }
    // process inputs recursively
    for (CNode input : current.getInput()) rEliminateCommonSubexpression(input, cseSet);
    // process node itself
    cseSet.put(current, current);
    current.setVisited();
}