Examples with WhileStatement org.apache.sysml.parser.WhileStatement used on opensource projects

Example 16 with WhileStatement

use of org.apache.sysml.parser.WhileStatement in project systemml by apache.

the class InterProceduralAnalysis method propagateStatisticsAcrossBlock.

// ///////////////////////////
// INTRA-PROCEDURE ANALYSIS
// ////
private void propagateStatisticsAcrossBlock(StatementBlock sb, LocalVariableMap callVars, FunctionCallSizeInfo fcallSizes, Set<String> fnStack) {
    if (sb instanceof FunctionStatementBlock) {
        FunctionStatementBlock fsb = (FunctionStatementBlock) sb;
        FunctionStatement fstmt = (FunctionStatement) fsb.getStatement(0);
        for (StatementBlock sbi : fstmt.getBody()) propagateStatisticsAcrossBlock(sbi, callVars, fcallSizes, fnStack);
    } else if (sb instanceof WhileStatementBlock) {
        WhileStatementBlock wsb = (WhileStatementBlock) sb;
        WhileStatement wstmt = (WhileStatement) wsb.getStatement(0);
        // old stats into predicate
        propagateStatisticsAcrossPredicateDAG(wsb.getPredicateHops(), callVars);
        // remove updated constant scalars
        Recompiler.removeUpdatedScalars(callVars, wsb);
        // check and propagate stats into body
        LocalVariableMap oldCallVars = (LocalVariableMap) callVars.clone();
        for (StatementBlock sbi : wstmt.getBody()) propagateStatisticsAcrossBlock(sbi, callVars, fcallSizes, fnStack);
        if (Recompiler.reconcileUpdatedCallVarsLoops(oldCallVars, callVars, wsb)) {
            // second pass if required
            propagateStatisticsAcrossPredicateDAG(wsb.getPredicateHops(), callVars);
            for (StatementBlock sbi : wstmt.getBody()) propagateStatisticsAcrossBlock(sbi, callVars, fcallSizes, fnStack);
        }
        // remove updated constant scalars
        Recompiler.removeUpdatedScalars(callVars, sb);
    } else if (sb instanceof IfStatementBlock) {
        IfStatementBlock isb = (IfStatementBlock) sb;
        IfStatement istmt = (IfStatement) isb.getStatement(0);
        // old stats into predicate
        propagateStatisticsAcrossPredicateDAG(isb.getPredicateHops(), callVars);
        // check and propagate stats into body
        LocalVariableMap oldCallVars = (LocalVariableMap) callVars.clone();
        LocalVariableMap callVarsElse = (LocalVariableMap) callVars.clone();
        for (StatementBlock sbi : istmt.getIfBody()) propagateStatisticsAcrossBlock(sbi, callVars, fcallSizes, fnStack);
        for (StatementBlock sbi : istmt.getElseBody()) propagateStatisticsAcrossBlock(sbi, callVarsElse, fcallSizes, fnStack);
        callVars = Recompiler.reconcileUpdatedCallVarsIf(oldCallVars, callVars, callVarsElse, isb);
        // remove updated constant scalars
        Recompiler.removeUpdatedScalars(callVars, sb);
    } else if (// incl parfor
    sb instanceof ForStatementBlock) {
        ForStatementBlock fsb = (ForStatementBlock) sb;
        ForStatement fstmt = (ForStatement) fsb.getStatement(0);
        // old stats into predicate
        propagateStatisticsAcrossPredicateDAG(fsb.getFromHops(), callVars);
        propagateStatisticsAcrossPredicateDAG(fsb.getToHops(), callVars);
        propagateStatisticsAcrossPredicateDAG(fsb.getIncrementHops(), callVars);
        // remove updated constant scalars
        Recompiler.removeUpdatedScalars(callVars, fsb);
        // check and propagate stats into body
        LocalVariableMap oldCallVars = (LocalVariableMap) callVars.clone();
        for (StatementBlock sbi : fstmt.getBody()) propagateStatisticsAcrossBlock(sbi, callVars, fcallSizes, fnStack);
        if (Recompiler.reconcileUpdatedCallVarsLoops(oldCallVars, callVars, fsb))
            for (StatementBlock sbi : fstmt.getBody()) propagateStatisticsAcrossBlock(sbi, callVars, fcallSizes, fnStack);
        // remove updated constant scalars
        Recompiler.removeUpdatedScalars(callVars, sb);
    } else // generic (last-level)
    {
        // remove updated constant scalars
        Recompiler.removeUpdatedScalars(callVars, sb);
        // old stats in, new stats out if updated
        ArrayList<Hop> roots = sb.getHops();
        DMLProgram prog = sb.getDMLProg();
        // replace scalar reads with literals
        Hop.resetVisitStatus(roots);
        propagateScalarsAcrossDAG(roots, callVars);
        // refresh stats across dag
        Hop.resetVisitStatus(roots);
        propagateStatisticsAcrossDAG(roots, callVars);
        // propagate stats into function calls
        Hop.resetVisitStatus(roots);
        propagateStatisticsIntoFunctions(prog, roots, callVars, fcallSizes, fnStack);
    }
}

Example 17 with WhileStatement

use of org.apache.sysml.parser.WhileStatement in project systemml by apache.

the class ProgramRecompiler method isApplicableForReuseVariable.

private static boolean isApplicableForReuseVariable(StatementBlock sb, StatementBlock parforSB, String var) {
    boolean ret = false;
    if (sb instanceof IfStatementBlock) {
        IfStatement is = (IfStatement) sb.getStatement(0);
        for (StatementBlock lsb : is.getIfBody()) ret |= isApplicableForReuseVariable(lsb, parforSB, var);
        for (StatementBlock lsb : is.getElseBody()) ret |= isApplicableForReuseVariable(lsb, parforSB, var);
    } else if (sb instanceof WhileStatementBlock) {
        WhileStatement ws = (WhileStatement) sb.getStatement(0);
        for (StatementBlock lsb : ws.getBody()) ret |= isApplicableForReuseVariable(lsb, parforSB, var);
    } else if (sb instanceof ForStatementBlock) {
        // for or parfor
        ForStatementBlock fsb = (ForStatementBlock) sb;
        ForStatement fs = (ForStatement) fsb.getStatement(0);
        if (fsb == parforSB) {
            // found parfor statement
            ret = true;
        } else {
            for (StatementBlock lsb : fs.getBody()) ret |= isApplicableForReuseVariable(lsb, parforSB, var);
        }
    }
    return ret && !sb.variablesUpdated().containsVariable(var);
}

Example 18 with WhileStatement

use of org.apache.sysml.parser.WhileStatement in project systemml by apache.

the class ProgramRecompiler method replaceConstantScalarVariables.

public static void replaceConstantScalarVariables(StatementBlock sb, LocalVariableMap vars) {
    if (sb instanceof IfStatementBlock) {
        IfStatementBlock isb = (IfStatementBlock) sb;
        IfStatement is = (IfStatement) sb.getStatement(0);
        replacePredicateLiterals(isb.getPredicateHops(), vars);
        for (StatementBlock lsb : is.getIfBody()) replaceConstantScalarVariables(lsb, vars);
        for (StatementBlock lsb : is.getElseBody()) replaceConstantScalarVariables(lsb, vars);
    } else if (sb instanceof WhileStatementBlock) {
        WhileStatementBlock wsb = (WhileStatementBlock) sb;
        WhileStatement ws = (WhileStatement) sb.getStatement(0);
        replacePredicateLiterals(wsb.getPredicateHops(), vars);
        for (StatementBlock lsb : ws.getBody()) replaceConstantScalarVariables(lsb, vars);
    } else if (// for or parfor
    sb instanceof ForStatementBlock) {
        ForStatementBlock fsb = (ForStatementBlock) sb;
        ForStatement fs = (ForStatement) fsb.getStatement(0);
        replacePredicateLiterals(fsb.getFromHops(), vars);
        replacePredicateLiterals(fsb.getToHops(), vars);
        replacePredicateLiterals(fsb.getIncrementHops(), vars);
        for (StatementBlock lsb : fs.getBody()) replaceConstantScalarVariables(lsb, vars);
    } else // last level block
    {
        ArrayList<Hop> hops = sb.getHops();
        if (hops != null) {
            // replace constant literals
            Hop.resetVisitStatus(hops);
            for (Hop hopRoot : hops) Recompiler.rReplaceLiterals(hopRoot, vars, true);
        }
    }
}

Example 19 with WhileStatement

use of org.apache.sysml.parser.WhileStatement in project systemml by apache.

the class ProgramRecompiler method rFindAndRecompileIndexingHOP.

/**
 * NOTE: if force is set, we set and recompile the respective indexing hops;
 * otherwise, we release the forced exec type and recompile again. Hence,
 * any changes can be exactly reverted with the same access behavior.
 *
 * @param sb statement block
 * @param pb program block
 * @param var variable
 * @param ec execution context
 * @param force if true, set and recompile the respective indexing hops
 */
public static void rFindAndRecompileIndexingHOP(StatementBlock sb, ProgramBlock pb, String var, ExecutionContext ec, boolean force) {
    if (pb instanceof IfProgramBlock && sb instanceof IfStatementBlock) {
        IfProgramBlock ipb = (IfProgramBlock) pb;
        IfStatementBlock isb = (IfStatementBlock) sb;
        IfStatement is = (IfStatement) sb.getStatement(0);
        // process if condition
        if (isb.getPredicateHops() != null)
            ipb.setPredicate(rFindAndRecompileIndexingHOP(isb.getPredicateHops(), ipb.getPredicate(), var, ec, force));
        // process if branch
        int len = is.getIfBody().size();
        for (int i = 0; i < ipb.getChildBlocksIfBody().size() && i < len; i++) {
            ProgramBlock lpb = ipb.getChildBlocksIfBody().get(i);
            StatementBlock lsb = is.getIfBody().get(i);
            rFindAndRecompileIndexingHOP(lsb, lpb, var, ec, force);
        }
        // process else branch
        if (ipb.getChildBlocksElseBody() != null) {
            int len2 = is.getElseBody().size();
            for (int i = 0; i < ipb.getChildBlocksElseBody().size() && i < len2; i++) {
                ProgramBlock lpb = ipb.getChildBlocksElseBody().get(i);
                StatementBlock lsb = is.getElseBody().get(i);
                rFindAndRecompileIndexingHOP(lsb, lpb, var, ec, force);
            }
        }
    } else if (pb instanceof WhileProgramBlock && sb instanceof WhileStatementBlock) {
        WhileProgramBlock wpb = (WhileProgramBlock) pb;
        WhileStatementBlock wsb = (WhileStatementBlock) sb;
        WhileStatement ws = (WhileStatement) sb.getStatement(0);
        // process while condition
        if (wsb.getPredicateHops() != null)
            wpb.setPredicate(rFindAndRecompileIndexingHOP(wsb.getPredicateHops(), wpb.getPredicate(), var, ec, force));
        // process body
        // robustness for potentially added problem blocks
        int len = ws.getBody().size();
        for (int i = 0; i < wpb.getChildBlocks().size() && i < len; i++) {
            ProgramBlock lpb = wpb.getChildBlocks().get(i);
            StatementBlock lsb = ws.getBody().get(i);
            rFindAndRecompileIndexingHOP(lsb, lpb, var, ec, force);
        }
    } else if (// for or parfor
    pb instanceof ForProgramBlock && sb instanceof ForStatementBlock) {
        ForProgramBlock fpb = (ForProgramBlock) pb;
        ForStatementBlock fsb = (ForStatementBlock) sb;
        ForStatement fs = (ForStatement) fsb.getStatement(0);
        if (fsb.getFromHops() != null)
            fpb.setFromInstructions(rFindAndRecompileIndexingHOP(fsb.getFromHops(), fpb.getFromInstructions(), var, ec, force));
        if (fsb.getToHops() != null)
            fpb.setToInstructions(rFindAndRecompileIndexingHOP(fsb.getToHops(), fpb.getToInstructions(), var, ec, force));
        if (fsb.getIncrementHops() != null)
            fpb.setIncrementInstructions(rFindAndRecompileIndexingHOP(fsb.getIncrementHops(), fpb.getIncrementInstructions(), var, ec, force));
        // process body
        // robustness for potentially added problem blocks
        int len = fs.getBody().size();
        for (int i = 0; i < fpb.getChildBlocks().size() && i < len; i++) {
            ProgramBlock lpb = fpb.getChildBlocks().get(i);
            StatementBlock lsb = fs.getBody().get(i);
            rFindAndRecompileIndexingHOP(lsb, lpb, var, ec, force);
        }
    } else // last level program block
    {
        try {
            // process actual hops
            boolean ret = false;
            Hop.resetVisitStatus(sb.getHops());
            if (force) {
                // set forced execution type
                for (Hop h : sb.getHops()) ret |= rFindAndSetCPIndexingHOP(h, var);
            } else {
                // release forced execution type
                for (Hop h : sb.getHops()) ret |= rFindAndReleaseIndexingHOP(h, var);
            }
            // recompilation on-demand
            if (ret) {
                // construct new instructions
                ArrayList<Instruction> newInst = Recompiler.recompileHopsDag(sb, sb.getHops(), ec.getVariables(), null, true, false, 0);
                pb.setInstructions(newInst);
            }
        } catch (Exception ex) {
            throw new DMLRuntimeException(ex);
        }
    }
}

Example 20 with WhileStatement

use of org.apache.sysml.parser.WhileStatement in project systemml by apache.

the class OptTreeConverter method rCreateAbstractOptNode.

public static OptNode rCreateAbstractOptNode(StatementBlock sb, ProgramBlock pb, LocalVariableMap vars, boolean topLevel, Set<String> memo) {
    OptNode node = null;
    if (pb instanceof IfProgramBlock && sb instanceof IfStatementBlock) {
        IfProgramBlock ipb = (IfProgramBlock) pb;
        IfStatementBlock isb = (IfStatementBlock) sb;
        IfStatement is = (IfStatement) isb.getStatement(0);
        node = new OptNode(NodeType.IF);
        _hlMap.putProgMapping(sb, pb, node);
        node.setExecType(ExecType.CP);
        node.setLineNumbers(isb.getBeginLine(), isb.getEndLine());
        // handle predicate
        isb.getPredicateHops().resetVisitStatus();
        node.addChilds(rCreateAbstractOptNodes(isb.getPredicateHops(), vars, memo));
        // process if branch
        OptNode ifn = new OptNode(NodeType.GENERIC);
        _hlMap.putProgMapping(sb, pb, ifn);
        ifn.setExecType(ExecType.CP);
        node.addChild(ifn);
        int len = is.getIfBody().size();
        for (int i = 0; i < ipb.getChildBlocksIfBody().size() && i < len; i++) {
            ProgramBlock lpb = ipb.getChildBlocksIfBody().get(i);
            StatementBlock lsb = is.getIfBody().get(i);
            ifn.addChild(rCreateAbstractOptNode(lsb, lpb, vars, false, memo));
        }
        // process else branch
        if (ipb.getChildBlocksElseBody() != null) {
            OptNode efn = new OptNode(NodeType.GENERIC);
            _hlMap.putProgMapping(sb, pb, efn);
            efn.setExecType(ExecType.CP);
            node.addChild(efn);
            int len2 = is.getElseBody().size();
            for (int i = 0; i < ipb.getChildBlocksElseBody().size() && i < len2; i++) {
                ProgramBlock lpb = ipb.getChildBlocksElseBody().get(i);
                StatementBlock lsb = is.getElseBody().get(i);
                efn.addChild(rCreateAbstractOptNode(lsb, lpb, vars, false, memo));
            }
        }
    } else if (pb instanceof WhileProgramBlock && sb instanceof WhileStatementBlock) {
        WhileProgramBlock wpb = (WhileProgramBlock) pb;
        WhileStatementBlock wsb = (WhileStatementBlock) sb;
        WhileStatement ws = (WhileStatement) wsb.getStatement(0);
        node = new OptNode(NodeType.WHILE);
        _hlMap.putProgMapping(sb, pb, node);
        node.setExecType(ExecType.CP);
        node.setLineNumbers(wsb.getBeginLine(), wsb.getEndLine());
        // handle predicate
        wsb.getPredicateHops().resetVisitStatus();
        node.addChilds(rCreateAbstractOptNodes(wsb.getPredicateHops(), vars, memo));
        // process body
        int len = ws.getBody().size();
        for (int i = 0; i < wpb.getChildBlocks().size() && i < len; i++) {
            ProgramBlock lpb = wpb.getChildBlocks().get(i);
            StatementBlock lsb = ws.getBody().get(i);
            node.addChild(rCreateAbstractOptNode(lsb, lpb, vars, false, memo));
        }
    } else if (pb instanceof ForProgramBlock && sb instanceof ForStatementBlock && !(pb instanceof ParForProgramBlock)) {
        ForProgramBlock fpb = (ForProgramBlock) pb;
        ForStatementBlock fsb = (ForStatementBlock) sb;
        ForStatement fs = (ForStatement) fsb.getStatement(0);
        node = new OptNode(NodeType.FOR);
        _hlMap.putProgMapping(sb, pb, node);
        node.setExecType(ExecType.CP);
        node.setLineNumbers(fsb.getBeginLine(), fsb.getEndLine());
        // determine number of iterations
        long N = OptimizerUtils.getNumIterations(fpb, vars, CostEstimator.FACTOR_NUM_ITERATIONS);
        node.addParam(ParamType.NUM_ITERATIONS, String.valueOf(N));
        // handle predicate
        fsb.getFromHops().resetVisitStatus();
        fsb.getToHops().resetVisitStatus();
        if (fsb.getIncrementHops() != null)
            fsb.getIncrementHops().resetVisitStatus();
        node.addChilds(rCreateAbstractOptNodes(fsb.getFromHops(), vars, memo));
        node.addChilds(rCreateAbstractOptNodes(fsb.getToHops(), vars, memo));
        if (fsb.getIncrementHops() != null)
            node.addChilds(rCreateAbstractOptNodes(fsb.getIncrementHops(), vars, memo));
        // process body
        int len = fs.getBody().size();
        for (int i = 0; i < fpb.getChildBlocks().size() && i < len; i++) {
            ProgramBlock lpb = fpb.getChildBlocks().get(i);
            StatementBlock lsb = fs.getBody().get(i);
            node.addChild(rCreateAbstractOptNode(lsb, lpb, vars, false, memo));
        }
    } else if (pb instanceof ParForProgramBlock && sb instanceof ParForStatementBlock) {
        ParForProgramBlock fpb = (ParForProgramBlock) pb;
        ParForStatementBlock fsb = (ParForStatementBlock) sb;
        ParForStatement fs = (ParForStatement) fsb.getStatement(0);
        node = new OptNode(NodeType.PARFOR);
        node.setLineNumbers(fsb.getBeginLine(), fsb.getEndLine());
        _hlMap.putProgMapping(sb, pb, node);
        node.setK(fpb.getDegreeOfParallelism());
        long N = fpb.getNumIterations();
        node.addParam(ParamType.NUM_ITERATIONS, (N != -1) ? String.valueOf(N) : String.valueOf(CostEstimator.FACTOR_NUM_ITERATIONS));
        switch(fpb.getExecMode()) {
            case LOCAL:
                node.setExecType(ExecType.CP);
                break;
            case REMOTE_MR:
            case REMOTE_MR_DP:
                node.setExecType(ExecType.MR);
                break;
            case REMOTE_SPARK:
            case REMOTE_SPARK_DP:
                node.setExecType(ExecType.SPARK);
                break;
            case UNSPECIFIED:
                node.setExecType(null);
        }
        if (!topLevel) {
            fsb.getFromHops().resetVisitStatus();
            fsb.getToHops().resetVisitStatus();
            if (fsb.getIncrementHops() != null)
                fsb.getIncrementHops().resetVisitStatus();
            node.addChilds(rCreateAbstractOptNodes(fsb.getFromHops(), vars, memo));
            node.addChilds(rCreateAbstractOptNodes(fsb.getToHops(), vars, memo));
            if (fsb.getIncrementHops() != null)
                node.addChilds(rCreateAbstractOptNodes(fsb.getIncrementHops(), vars, memo));
        }
        // process body
        int len = fs.getBody().size();
        for (int i = 0; i < fpb.getChildBlocks().size() && i < len; i++) {
            ProgramBlock lpb = fpb.getChildBlocks().get(i);
            StatementBlock lsb = fs.getBody().get(i);
            node.addChild(rCreateAbstractOptNode(lsb, lpb, vars, false, memo));
        }
        // parameters, add required parameters
        Map<String, String> lparams = fpb.getParForParams();
        node.addParam(ParamType.DATA_PARTITIONER, lparams.get(ParForStatementBlock.DATA_PARTITIONER));
        node.addParam(ParamType.TASK_PARTITIONER, lparams.get(ParForStatementBlock.TASK_PARTITIONER));
        node.addParam(ParamType.RESULT_MERGE, lparams.get(ParForStatementBlock.RESULT_MERGE));
    // TODO task size
    } else // last level program block
    {
        sb = pb.getStatementBlock();
        // process all hops
        node = new OptNode(NodeType.GENERIC);
        _hlMap.putProgMapping(sb, pb, node);
        node.addChilds(createAbstractOptNodes(sb.getHops(), vars, memo));
        node.setExecType(ExecType.CP);
        node.setLineNumbers(sb.getBeginLine(), sb.getEndLine());
        // TODO remove this workaround once this information can be obtained from hops/lops compiler
        if (node.isCPOnly()) {
            boolean isSparkExec = OptimizerUtils.isSparkExecutionMode();
            if (!isSparkExec && containsMRJobInstruction(pb, false, false))
                node.setExecType(ExecType.MR);
            else if (isSparkExec && containsMRJobInstruction(pb, false, true))
                node.setExecType(ExecType.SPARK);
        }
    }
    // final cleanup
    // NOTE: required because this function is also used to create subtrees
    node.checkAndCleanupLeafNodes();
    return node;
}