Examples with MemoTableEntry org.apache.sysml.hops.codegen.template.CPlanMemoTable.MemoTableEntry used on opensource projects

Example 36 with MemoTableEntry

use of org.apache.sysml.hops.codegen.template.CPlanMemoTable.MemoTableEntry in project incubator-systemml by apache.

the class PlanSelectionFuseAll method rSelectPlans.

private void rSelectPlans(CPlanMemoTable memo, Hop current, TemplateType currentType) {
    if (isVisited(current.getHopID(), currentType))
        return;
    //step 1: prune subsumed plans of same type
    if (memo.contains(current.getHopID())) {
        HashSet<MemoTableEntry> rmSet = new HashSet<MemoTableEntry>();
        List<MemoTableEntry> hopP = memo.get(current.getHopID());
        for (MemoTableEntry e1 : hopP) for (MemoTableEntry e2 : hopP) if (e1 != e2 && e1.subsumes(e2))
            rmSet.add(e2);
        memo.remove(current, rmSet);
    }
    //step 2: select plan for current path
    MemoTableEntry best = null;
    if (memo.contains(current.getHopID())) {
        if (currentType == null) {
            best = memo.get(current.getHopID()).stream().filter(p -> isValid(p, current)).min(new BasicPlanComparator()).orElse(null);
        } else {
            best = memo.get(current.getHopID()).stream().filter(p -> p.type == currentType || p.type == TemplateType.CellTpl).min(Comparator.comparing(p -> 7 - ((p.type == currentType) ? 4 : 0) - p.countPlanRefs())).orElse(null);
        }
        addBestPlan(current.getHopID(), best);
    }
    //step 3: recursively process children
    for (int i = 0; i < current.getInput().size(); i++) {
        TemplateType pref = (best != null && best.isPlanRef(i)) ? best.type : null;
        rSelectPlans(memo, current.getInput().get(i), pref);
    }
    setVisited(current.getHopID(), currentType);
}

Example 37 with MemoTableEntry

use of org.apache.sysml.hops.codegen.template.CPlanMemoTable.MemoTableEntry in project incubator-systemml by apache.

the class PlanSelectionFuseCostBased method rPruneSuboptimalPlans.

private static void rPruneSuboptimalPlans(CPlanMemoTable memo, Hop current, HashSet<Long> visited, HashSet<Long> partition, ArrayList<Long> M, boolean[] plan) {
    //memoization (not via hops because in middle of dag)
    if (visited.contains(current.getHopID()))
        return;
    //remove memo table entries if necessary
    long hopID = current.getHopID();
    if (partition.contains(hopID) && memo.contains(hopID)) {
        Iterator<MemoTableEntry> iter = memo.get(hopID).iterator();
        while (iter.hasNext()) {
            MemoTableEntry me = iter.next();
            if (!hasNoRefToMaterialization(me, M, plan) && me.type != TemplateType.OuterProdTpl) {
                iter.remove();
                if (LOG.isTraceEnabled())
                    LOG.trace("Removed memo table entry: " + me);
            }
        }
    }
    //process children recursively
    for (Hop c : current.getInput()) rPruneSuboptimalPlans(memo, c, visited, partition, M, plan);
    visited.add(current.getHopID());
}

Example 38 with MemoTableEntry

use of org.apache.sysml.hops.codegen.template.CPlanMemoTable.MemoTableEntry in project incubator-systemml by apache.

the class PlanSelection method rSelectPlansFuseAll.

protected void rSelectPlansFuseAll(CPlanMemoTable memo, Hop current, TemplateType currentType, HashSet<Long> partition) {
    if (isVisited(current.getHopID(), currentType) || (partition != null && !partition.contains(current.getHopID())))
        return;
    // step 1: prune subsumed plans of same type
    if (memo.contains(current.getHopID())) {
        HashSet<MemoTableEntry> rmSet = new HashSet<>();
        List<MemoTableEntry> hopP = memo.get(current.getHopID());
        for (MemoTableEntry e1 : hopP) for (MemoTableEntry e2 : hopP) if (e1 != e2 && e1.subsumes(e2))
            rmSet.add(e2);
        memo.remove(current, rmSet);
    }
    // step 2: select plan for current path
    MemoTableEntry best = null;
    if (memo.contains(current.getHopID())) {
        if (currentType == null) {
            best = memo.get(current.getHopID()).stream().filter(p -> p.isValid()).min(BASE_COMPARE).orElse(null);
        } else {
            _typedCompare.setType(currentType);
            best = memo.get(current.getHopID()).stream().filter(p -> p.type == currentType || p.type == TemplateType.CELL).min(_typedCompare).orElse(null);
        }
        addBestPlan(current.getHopID(), best);
    }
    // step 3: recursively process children
    for (int i = 0; i < current.getInput().size(); i++) {
        TemplateType pref = (best != null && best.isPlanRef(i)) ? best.type : null;
        rSelectPlansFuseAll(memo, current.getInput().get(i), pref, partition);
    }
    setVisited(current.getHopID(), currentType);
}

Example 39 with MemoTableEntry

use of org.apache.sysml.hops.codegen.template.CPlanMemoTable.MemoTableEntry in project incubator-systemml by apache.

the class PlanSelectionFuseCostBased method createAndAddMultiAggPlans.

// across-partition multi-agg templates with shared reads
private void createAndAddMultiAggPlans(CPlanMemoTable memo, ArrayList<Hop> roots) {
    // collect full aggregations as initial set of candidates
    HashSet<Long> fullAggs = new HashSet<>();
    Hop.resetVisitStatus(roots);
    for (Hop hop : roots) rCollectFullAggregates(hop, fullAggs);
    Hop.resetVisitStatus(roots);
    // remove operators with assigned multi-agg plans
    fullAggs.removeIf(p -> memo.contains(p, TemplateType.MAGG));
    // check applicability for further analysis
    if (fullAggs.size() <= 1)
        return;
    if (LOG.isTraceEnabled()) {
        LOG.trace("Found across-partition ua(RC) aggregations: " + Arrays.toString(fullAggs.toArray(new Long[0])));
    }
    // collect information for all candidates
    // (subsumed aggregations, and inputs to fused operators)
    List<AggregateInfo> aggInfos = new ArrayList<>();
    for (Long hopID : fullAggs) {
        Hop aggHop = memo.getHopRefs().get(hopID);
        AggregateInfo tmp = new AggregateInfo(aggHop);
        for (int i = 0; i < aggHop.getInput().size(); i++) {
            Hop c = HopRewriteUtils.isMatrixMultiply(aggHop) && i == 0 ? aggHop.getInput().get(0).getInput().get(0) : aggHop.getInput().get(i);
            rExtractAggregateInfo(memo, c, tmp, TemplateType.CELL);
        }
        if (tmp._fusedInputs.isEmpty()) {
            if (HopRewriteUtils.isMatrixMultiply(aggHop)) {
                tmp.addFusedInput(aggHop.getInput().get(0).getInput().get(0).getHopID());
                tmp.addFusedInput(aggHop.getInput().get(1).getHopID());
            } else
                tmp.addFusedInput(aggHop.getInput().get(0).getHopID());
        }
        aggInfos.add(tmp);
    }
    if (LOG.isTraceEnabled()) {
        LOG.trace("Extracted across-partition ua(RC) aggregation info: ");
        for (AggregateInfo info : aggInfos) LOG.trace(info);
    }
    // sort aggregations by num dependencies to simplify merging
    // clusters of aggregations with parallel dependencies
    aggInfos = aggInfos.stream().sorted(Comparator.comparing(a -> a._inputAggs.size())).collect(Collectors.toList());
    // greedy grouping of multi-agg candidates
    boolean converged = false;
    while (!converged) {
        AggregateInfo merged = null;
        for (int i = 0; i < aggInfos.size(); i++) {
            AggregateInfo current = aggInfos.get(i);
            for (int j = i + 1; j < aggInfos.size(); j++) {
                AggregateInfo that = aggInfos.get(j);
                if (current.isMergable(that)) {
                    merged = current.merge(that);
                    aggInfos.remove(j);
                    j--;
                }
            }
        }
        converged = (merged == null);
    }
    if (LOG.isTraceEnabled()) {
        LOG.trace("Merged across-partition ua(RC) aggregation info: ");
        for (AggregateInfo info : aggInfos) LOG.trace(info);
    }
    // construct and add multiagg template plans (w/ max 3 aggregations)
    for (AggregateInfo info : aggInfos) {
        if (info._aggregates.size() <= 1)
            continue;
        Long[] aggs = info._aggregates.keySet().toArray(new Long[0]);
        MemoTableEntry me = new MemoTableEntry(TemplateType.MAGG, aggs[0], aggs[1], (aggs.length > 2) ? aggs[2] : -1, aggs.length);
        for (int i = 0; i < aggs.length; i++) {
            memo.add(memo.getHopRefs().get(aggs[i]), me);
            addBestPlan(aggs[i], me);
            if (LOG.isTraceEnabled())
                LOG.trace("Added multiagg* plan: " + aggs[i] + " " + me);
        }
    }
}

Example 40 with MemoTableEntry

use of org.apache.sysml.hops.codegen.template.CPlanMemoTable.MemoTableEntry in project incubator-systemml by apache.

the class PlanSelectionFuseCostBased method rPruneInvalidPlans.

private static void rPruneInvalidPlans(CPlanMemoTable memo, Hop current, HashSet<Long> visited, HashSet<Long> partition, ArrayList<Long> M, boolean[] plan) {
    // memoization (not via hops because in middle of dag)
    if (visited.contains(current.getHopID()))
        return;
    // process children recursively
    for (Hop c : current.getInput()) rPruneInvalidPlans(memo, c, visited, partition, M, plan);
    // find invalid row aggregate leaf nodes (see TemplateRow.open) w/o matrix inputs,
    // i.e., plans that become invalid after the previous pruning step
    long hopID = current.getHopID();
    if (partition.contains(hopID) && memo.contains(hopID, TemplateType.ROW)) {
        for (MemoTableEntry me : memo.get(hopID)) {
            if (me.type == TemplateType.ROW) {
                // convert leaf node with pure vector inputs
                if (!me.hasPlanRef() && !TemplateUtils.hasMatrixInput(current)) {
                    me.type = TemplateType.CELL;
                    if (LOG.isTraceEnabled())
                        LOG.trace("Converted leaf memo table entry from row to cell: " + me);
                }
                // convert inner node without row template input
                if (me.hasPlanRef() && !ROW_TPL.open(current)) {
                    boolean hasRowInput = false;
                    for (int i = 0; i < 3; i++) if (me.isPlanRef(i))
                        hasRowInput |= memo.contains(me.input(i), TemplateType.ROW);
                    if (!hasRowInput) {
                        me.type = TemplateType.CELL;
                        if (LOG.isTraceEnabled())
                            LOG.trace("Converted inner memo table entry from row to cell: " + me);
                    }
                }
            }
        }
    }
    visited.add(current.getHopID());
}