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DMLTranslator.java
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DMLTranslator.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sysds.parser;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.sysds.api.DMLScript;
import org.apache.sysds.common.Builtins;
import org.apache.sysds.common.Types.AggOp;
import org.apache.sysds.common.Types.DataType;
import org.apache.sysds.common.Types.Direction;
import org.apache.sysds.common.Types.FileFormat;
import org.apache.sysds.common.Types.OpOp1;
import org.apache.sysds.common.Types.OpOp2;
import org.apache.sysds.common.Types.OpOp3;
import org.apache.sysds.common.Types.OpOpDG;
import org.apache.sysds.common.Types.OpOpData;
import org.apache.sysds.common.Types.OpOpDnn;
import org.apache.sysds.common.Types.OpOpN;
import org.apache.sysds.common.Types.ParamBuiltinOp;
import org.apache.sysds.common.Types.ReOrgOp;
import org.apache.sysds.common.Types.ValueType;
import org.apache.sysds.conf.ConfigurationManager;
import org.apache.sysds.conf.DMLConfig;
import org.apache.sysds.hops.AggBinaryOp;
import org.apache.sysds.hops.AggUnaryOp;
import org.apache.sysds.hops.BinaryOp;
import org.apache.sysds.hops.DataGenOp;
import org.apache.sysds.hops.DataOp;
import org.apache.sysds.hops.DnnOp;
import org.apache.sysds.hops.FunctionOp;
import org.apache.sysds.hops.FunctionOp.FunctionType;
import org.apache.sysds.hops.Hop;
import org.apache.sysds.hops.HopsException;
import org.apache.sysds.hops.IndexingOp;
import org.apache.sysds.hops.LeftIndexingOp;
import org.apache.sysds.hops.LiteralOp;
import org.apache.sysds.hops.MemoTable;
import org.apache.sysds.hops.NaryOp;
import org.apache.sysds.hops.OptimizerUtils;
import org.apache.sysds.hops.ParameterizedBuiltinOp;
import org.apache.sysds.hops.ReorgOp;
import org.apache.sysds.hops.TernaryOp;
import org.apache.sysds.hops.UnaryOp;
import org.apache.sysds.hops.codegen.SpoofCompiler;
import org.apache.sysds.hops.codegen.SpoofCompiler.IntegrationType;
import org.apache.sysds.hops.codegen.SpoofCompiler.PlanCachePolicy;
import org.apache.sysds.hops.ipa.InterProceduralAnalysis;
import org.apache.sysds.hops.recompile.Recompiler;
import org.apache.sysds.hops.rewrite.HopRewriteUtils;
import org.apache.sysds.hops.rewrite.ProgramRewriter;
import org.apache.sysds.lops.Lop;
import org.apache.sysds.lops.LopsException;
import org.apache.sysds.lops.compile.Dag;
import org.apache.sysds.lops.rewrite.LopRewriter;
import org.apache.sysds.parser.PrintStatement.PRINTTYPE;
import org.apache.sysds.runtime.DMLRuntimeException;
import org.apache.sysds.runtime.controlprogram.BasicProgramBlock;
import org.apache.sysds.runtime.controlprogram.ForProgramBlock;
import org.apache.sysds.runtime.controlprogram.FunctionProgramBlock;
import org.apache.sysds.runtime.controlprogram.IfProgramBlock;
import org.apache.sysds.runtime.controlprogram.ParForProgramBlock;
import org.apache.sysds.runtime.controlprogram.Program;
import org.apache.sysds.runtime.controlprogram.ProgramBlock;
import org.apache.sysds.runtime.controlprogram.WhileProgramBlock;
import org.apache.sysds.runtime.instructions.Instruction;
import org.apache.sysds.runtime.instructions.cp.VariableCPInstruction;
public class DMLTranslator
{
private static final Log LOG = LogFactory.getLog(DMLTranslator.class.getName());
private DMLProgram _dmlProg;
public DMLTranslator(DMLProgram dmlp) {
_dmlProg = dmlp;
//setup default size for unknown dimensions
OptimizerUtils.resetDefaultSize();
//reinit rewriter according to opt level flags
Recompiler.reinitRecompiler();
}
public void validateParseTree(DMLProgram dmlp) {
validateParseTree(dmlp, true);
}
public void validateParseTree(DMLProgram dmlp, boolean inclFuns)
{
//STEP1: Pre-processing steps for validate - e.g., prepare read-after-write meta data
boolean fWriteRead = prepareReadAfterWrite(dmlp, new HashMap<String, DataIdentifier>());
//STEP2: Actual Validate
if( inclFuns ) {
// handle functions in namespaces (current program has default namespace)
for (String namespaceKey : dmlp.getNamespaces().keySet()) {
// for each function defined in the namespace
for (String fname : dmlp.getFunctionStatementBlocks(namespaceKey).keySet()) {
FunctionStatementBlock fblock = dmlp.getFunctionStatementBlock(namespaceKey,fname);
validateFunction(dmlp, fblock);
}
}
}
// handle regular blocks -- "main" program
VariableSet vs = new VariableSet();
HashMap<String, ConstIdentifier> constVars = new HashMap<>();
for (int i = 0; i < dmlp.getNumStatementBlocks(); i++) {
StatementBlock sb = dmlp.getStatementBlock(i);
vs = sb.validate(dmlp, vs, constVars, fWriteRead);
constVars = sb.getConstOut();
}
//STEP3: Post-processing steps after validate - e.g., prepare read-after-write meta data
if( fWriteRead )
{
//propagate size and datatypes into read
prepareReadAfterWrite(dmlp, new HashMap<>());
//re-validate main program for datatype propagation
vs = new VariableSet();
constVars = new HashMap<>();
for (int i = 0; i < dmlp.getNumStatementBlocks(); i++) {
StatementBlock sb = dmlp.getStatementBlock(i);
vs = sb.validate(dmlp, vs, constVars, fWriteRead);
constVars = sb.getConstOut();
}
}
}
public void validateFunction(DMLProgram dmlp, FunctionStatementBlock fsb) {
validateFunction(dmlp, fsb, false);
}
public void validateFunction(DMLProgram dmlp, FunctionStatementBlock fsb, boolean conditional) {
HashMap<String, ConstIdentifier> constVars = new HashMap<>();
VariableSet vs = new VariableSet();
// add the input variables for the function to input variable list
FunctionStatement fstmt = (FunctionStatement)fsb.getStatement(0);
for (DataIdentifier currVar : fstmt.getInputParams()) {
if (currVar.getDataType() == DataType.SCALAR)
currVar.setDimensions(0, 0);
vs.addVariable(currVar.getName(), currVar);
}
fsb.validate(dmlp, vs, constVars, conditional);
}
public void liveVariableAnalysis(DMLProgram dmlp) {
liveVariableAnalysis(dmlp, true);
}
public void liveVariableAnalysis(DMLProgram dmlp, boolean inclFuns) {
// for each namespace, handle function statement blocks
if( inclFuns ) {
for (String namespaceKey : dmlp.getNamespaces().keySet()) {
for (String fname: dmlp.getFunctionStatementBlocks(namespaceKey).keySet()) {
FunctionStatementBlock fsb = dmlp.getFunctionStatementBlock(namespaceKey, fname);
liveVariableAnalysisFunction(dmlp, fsb);
}
}
}
// handle regular program blocks
VariableSet currentLiveOut = new VariableSet();
VariableSet activeIn = new VariableSet();
// handle function inlining
dmlp.setStatementBlocks(StatementBlock.mergeFunctionCalls(dmlp.getStatementBlocks(), dmlp));
for (int i = 0; i < dmlp.getNumStatementBlocks(); i++) {
StatementBlock sb = dmlp.getStatementBlock(i);
activeIn = sb.initializeforwardLV(activeIn);
}
if (dmlp.getNumStatementBlocks() > 0){
StatementBlock lastSb = dmlp.getStatementBlock(dmlp.getNumStatementBlocks() - 1);
lastSb._liveOut = new VariableSet();
for (int i = dmlp.getNumStatementBlocks() - 1; i >= 0; i--) {
StatementBlock sb = dmlp.getStatementBlock(i);
currentLiveOut = sb.analyze(currentLiveOut);
}
}
cleanupLiveOutVariables(dmlp.getStatementBlocks(), new VariableSet());
}
public void liveVariableAnalysisFunction(DMLProgram dmlp, FunctionStatementBlock fsb) {
//STEP 1: forward direction
FunctionStatement fstmt = (FunctionStatement)fsb.getStatement(0);
// perform function inlining
fstmt.setBody(StatementBlock.mergeFunctionCalls(fstmt.getBody(), dmlp));
VariableSet activeIn = new VariableSet();
for (DataIdentifier id : fstmt.getInputParams()){
activeIn.addVariable(id.getName(), id);
}
fsb.initializeforwardLV(activeIn);
//STEP 2: backward direction
VariableSet currentLiveOut = new VariableSet();
VariableSet currentLiveIn = new VariableSet();
VariableSet unionLiveIn = new VariableSet();
for (DataIdentifier id : fstmt.getInputParams())
currentLiveIn.addVariable(id.getName(), id);
for (DataIdentifier id : fstmt.getOutputParams()) {
currentLiveOut.addVariable(id.getName(), id);
unionLiveIn.addVariable(id.getName(), id);
}
fsb._liveOut = currentLiveOut;
fsb.analyze(currentLiveIn, currentLiveOut);
cleanupLiveOutVariables(fstmt.getBody(), unionLiveIn);
}
public void cleanupLiveOutVariables(List<StatementBlock> sbs, VariableSet unionLiveIn) {
//backwards pass to collect union of livein variables of all successors
//and cleanup unnecessary liveout variables
for(int i=sbs.size()-1; i>=0; i--) {
StatementBlock sb = sbs.get(i);
//remove liveout variables that are not in unionLivein
sb.liveOut().removeVariables(
VariableSet.minus(sb.liveOut(), unionLiveIn));
//collect all livein information
unionLiveIn.addVariables(sb.liveIn());
}
}
public void constructHops(DMLProgram dmlp) {
constructHops(dmlp, true);
}
public void constructHops(DMLProgram dmlp, boolean inclFuns) {
// Step 1: construct hops for all functions
if( inclFuns ) {
// for each namespace, handle function program blocks
for( FunctionDictionary<FunctionStatementBlock> fdict : dmlp.getNamespaces().values() )
for( FunctionStatementBlock fsb : fdict.getFunctions().values() )
constructHops(fsb);
}
// Step 2: construct hops for main program
// handle regular program blocks
for (int i = 0; i < dmlp.getNumStatementBlocks(); i++) {
StatementBlock current = dmlp.getStatementBlock(i);
constructHops(current);
}
}
public void rewriteHopsDAG(DMLProgram dmlp)
{
//apply hop rewrites (static rewrites)
ProgramRewriter rewriter = new ProgramRewriter(true, false);
rewriter.rewriteProgramHopDAGs(dmlp, false); //rewrite and merge
resetHopsDAGVisitStatus(dmlp);
rewriter.rewriteProgramHopDAGs(dmlp, true); //rewrite and split
resetHopsDAGVisitStatus(dmlp);
//propagate size information from main into functions (but conservatively)
if( OptimizerUtils.ALLOW_INTER_PROCEDURAL_ANALYSIS ) {
InterProceduralAnalysis ipa = new InterProceduralAnalysis(dmlp);
ipa.analyzeProgram(OptimizerUtils.IPA_NUM_REPETITIONS);
resetHopsDAGVisitStatus(dmlp);
}
//apply hop rewrites (dynamic rewrites, after IPA)
ProgramRewriter rewriter2 = new ProgramRewriter(false, true);
rewriter2.rewriteProgramHopDAGs(dmlp);
resetHopsDAGVisitStatus(dmlp);
//compute memory estimates for all the hops. These estimates are used
//subsequently in various optimizations, e.g. CP vs. MR scheduling and parfor.
refreshMemEstimates(dmlp);
resetHopsDAGVisitStatus(dmlp);
//enhance HOP DAGs by automatic operator fusion
DMLConfig dmlconf = ConfigurationManager.getDMLConfig();
if( ConfigurationManager.isCodegenEnabled() ){
SpoofCompiler.PLAN_CACHE_POLICY = PlanCachePolicy.get(
dmlconf.getBooleanValue(DMLConfig.CODEGEN_PLANCACHE),
dmlconf.getIntValue(DMLConfig.CODEGEN_LITERALS)==2);
SpoofCompiler.setConfiguredPlanSelector();
SpoofCompiler.setExecTypeSpecificJavaCompiler();
if( SpoofCompiler.INTEGRATION==IntegrationType.HOPS )
codgenHopsDAG(dmlp);
}
}
public void rewriteLopDAG(DMLProgram dmlp) {
LopRewriter rewriter = new LopRewriter();
rewriter.rewriteProgramLopDAGs(dmlp);
}
public void codgenHopsDAG(DMLProgram dmlp) {
SpoofCompiler.generateCode(dmlp);
}
public void codgenHopsDAG(Program rtprog) {
SpoofCompiler.generateCode(rtprog);
}
public void codgenHopsDAG(ProgramBlock pb) {
SpoofCompiler.generateCodeFromProgramBlock(pb);
}
public void constructLops(DMLProgram dmlp) {
// for each namespace, handle function program blocks
for( FunctionDictionary<FunctionStatementBlock> fdict : dmlp.getNamespaces().values() ) {
//handle optimized functions
for( FunctionStatementBlock fsb : fdict.getFunctions().values() )
constructLops(fsb);
//handle unoptimized functions
if( fdict.getFunctions(false) != null )
for( FunctionStatementBlock fsb : fdict.getFunctions(false).values() )
constructLops(fsb);
}
// handle regular program blocks
for( StatementBlock sb : dmlp.getStatementBlocks() )
constructLops(sb);
}
public boolean constructLops(StatementBlock sb)
{
boolean ret = false;
if (sb instanceof WhileStatementBlock)
{
WhileStatementBlock wsb = (WhileStatementBlock)sb;
WhileStatement whileStmt = (WhileStatement)wsb.getStatement(0);
ArrayList<StatementBlock> body = whileStmt.getBody();
// step through stmt blocks in while stmt body
for (StatementBlock stmtBlock : body)
ret |= constructLops(stmtBlock);
// handle while stmt predicate
Lop l = wsb.getPredicateHops().constructLops();
wsb.setPredicateLops(l);
ret |= wsb.updatePredicateRecompilationFlag();
}
else if (sb instanceof IfStatementBlock)
{
IfStatementBlock isb = (IfStatementBlock) sb;
IfStatement ifStmt = (IfStatement)isb.getStatement(0);
ArrayList<StatementBlock> ifBody = ifStmt.getIfBody();
ArrayList<StatementBlock> elseBody = ifStmt.getElseBody();
// step through stmt blocks in if stmt ifBody
for (StatementBlock stmtBlock : ifBody)
ret |= constructLops(stmtBlock);
// step through stmt blocks in if stmt elseBody
for (StatementBlock stmtBlock : elseBody)
ret |= constructLops(stmtBlock);
// handle if stmt predicate
Lop l = isb.getPredicateHops().constructLops();
isb.setPredicateLops(l);
ret |= isb.updatePredicateRecompilationFlag();
}
else if (sb instanceof ForStatementBlock) //NOTE: applies to ForStatementBlock and ParForStatementBlock
{
ForStatementBlock fsb = (ForStatementBlock) sb;
ForStatement fs = (ForStatement)sb.getStatement(0);
ArrayList<StatementBlock> body = fs.getBody();
// step through stmt blocks in FOR stmt body
for (StatementBlock stmtBlock : body)
ret |= constructLops(stmtBlock);
// handle for stmt predicate
if (fsb.getFromHops() != null){
Lop llobs = fsb.getFromHops().constructLops();
fsb.setFromLops(llobs);
}
if (fsb.getToHops() != null){
Lop llobs = fsb.getToHops().constructLops();
fsb.setToLops(llobs);
}
if (fsb.getIncrementHops() != null){
Lop llobs = fsb.getIncrementHops().constructLops();
fsb.setIncrementLops(llobs);
}
ret |= fsb.updatePredicateRecompilationFlags();
}
else if (sb instanceof FunctionStatementBlock) {
FunctionStatementBlock fsb = (FunctionStatementBlock) sb;
FunctionStatement functStmt = (FunctionStatement)sb.getStatement(0);
ArrayList<StatementBlock> body = functStmt.getBody();
// step through stmt blocks in while stmt body
for( StatementBlock stmtBlock : body )
ret |= constructLops(stmtBlock);
if( fsb.isRecompileOnce() )
fsb.setRecompileOnce(ret);
}
// handle default case for regular StatementBlock
else {
if (sb.getHops() == null)
sb.setHops(new ArrayList<Hop>());
ArrayList<Lop> lops = new ArrayList<>();
for (Hop hop : sb.getHops())
lops.add(hop.constructLops());
sb.setLops(lops);
ret |= sb.updateRecompilationFlag();
}
return ret;
}
public Program getRuntimeProgram(DMLProgram prog, DMLConfig config)
throws LanguageException, DMLRuntimeException, LopsException, HopsException
{
// constructor resets the set of registered functions
Program rtprog = new Program(prog);
// for all namespaces, translate function statement blocks into function program blocks
for (String namespace : prog.getNamespaces().keySet()){
for (String fname : prog.getFunctionStatementBlocks(namespace).keySet()){
// add program block to program
FunctionStatementBlock fsb = prog.getFunctionStatementBlocks(namespace).get(fname);
prepareAndAddFunctionProgramBlock(rtprog, config, namespace, fname, fsb, true);
// add unoptimized block to program (for second-order calls)
if( prog.getNamespaces().get(namespace).containsFunction(fname, false) ) {
prepareAndAddFunctionProgramBlock(rtprog, config, namespace, fname,
prog.getNamespaces().get(namespace).getFunction(fname, false), false);
}
}
}
// translate all top-level statement blocks to program blocks
for (StatementBlock sb : prog.getStatementBlocks() ) {
// add program block to program
ProgramBlock rtpb = createRuntimeProgramBlock(rtprog, sb, config);
rtprog.addProgramBlock(rtpb);
}
//enhance runtime program by automatic operator fusion
if( ConfigurationManager.isCodegenEnabled()
&& SpoofCompiler.INTEGRATION==IntegrationType.RUNTIME ){
codgenHopsDAG(rtprog);
}
return rtprog ;
}
private void prepareAndAddFunctionProgramBlock(Program rtprog, DMLConfig config,
String fnamespace, String fname, FunctionStatementBlock fsb, boolean opt)
{
FunctionProgramBlock rtpb = (FunctionProgramBlock)createRuntimeProgramBlock(rtprog, fsb, config);
rtprog.addFunctionProgramBlock(fnamespace, fname, rtpb, opt);
rtpb.setRecompileOnce(fsb.isRecompileOnce());
rtpb.setNondeterministic(fsb.isNondeterministic());
}
public ProgramBlock createRuntimeProgramBlock(Program prog, StatementBlock sb, DMLConfig config) {
Dag<Lop> dag = null;
Dag<Lop> pred_dag = null;
ArrayList<Instruction> instruct;
ArrayList<Instruction> pred_instruct = null;
ProgramBlock retPB = null;
// process While Statement - add runtime program blocks to program
if (sb instanceof WhileStatementBlock){
// create DAG for loop predicates
pred_dag = new Dag<>();
((WhileStatementBlock) sb).getPredicateLops().addToDag(pred_dag);
// create instructions for loop predicates
pred_instruct = new ArrayList<>();
ArrayList<Instruction> pInst = pred_dag.getJobs(null, config);
for (Instruction i : pInst ) {
pred_instruct.add(i);
}
// create while program block
WhileProgramBlock rtpb = new WhileProgramBlock(prog, pred_instruct);
//// process the body of the while statement block ////
WhileStatementBlock wsb = (WhileStatementBlock)sb;
WhileStatement wstmt = (WhileStatement)wsb.getStatement(0);
for (StatementBlock sblock : wstmt.getBody()){
// process the body
ProgramBlock childBlock = createRuntimeProgramBlock(prog, sblock, config);
rtpb.addProgramBlock(childBlock);
}
retPB = rtpb;
//post processing for generating missing instructions
retPB.setExitInstruction(deriveExitInstruction(sb));
// add statement block
retPB.setStatementBlock(sb);
// add location information
retPB.setParseInfo(sb);
}
// process If Statement - add runtime program blocks to program
else if (sb instanceof IfStatementBlock){
// create DAG for loop predicates
pred_dag = new Dag<>();
((IfStatementBlock) sb).getPredicateLops().addToDag(pred_dag);
// create instructions for loop predicates
pred_instruct = new ArrayList<>();
ArrayList<Instruction> pInst = pred_dag.getJobs(null, config);
for (Instruction i : pInst ) {
pred_instruct.add(i);
}
// create if program block
IfProgramBlock rtpb = new IfProgramBlock(prog, pred_instruct);
// process the body of the if statement block
IfStatementBlock isb = (IfStatementBlock)sb;
IfStatement istmt = (IfStatement)isb.getStatement(0);
// process the if body
for (StatementBlock sblock : istmt.getIfBody()){
ProgramBlock childBlock = createRuntimeProgramBlock(prog, sblock, config);
rtpb.addProgramBlockIfBody(childBlock);
}
// process the else body
for (StatementBlock sblock : istmt.getElseBody()){
ProgramBlock childBlock = createRuntimeProgramBlock(prog, sblock, config);
rtpb.addProgramBlockElseBody(childBlock);
}
retPB = rtpb;
//post processing for generating missing instructions
retPB.setExitInstruction(deriveExitInstruction(sb));
// add statement block
retPB.setStatementBlock(sb);
// add location information
retPB.setParseInfo(sb);
}
// process For Statement - add runtime program blocks to program
// NOTE: applies to ForStatementBlock and ParForStatementBlock
else if (sb instanceof ForStatementBlock)
{
ForStatementBlock fsb = (ForStatementBlock) sb;
// create DAGs for loop predicates
Dag<Lop> fromDag = new Dag<>();
Dag<Lop> toDag = new Dag<>();
Dag<Lop> incrementDag = new Dag<>();
if( fsb.getFromHops()!=null )
fsb.getFromLops().addToDag(fromDag);
if( fsb.getToHops()!=null )
fsb.getToLops().addToDag(toDag);
if( fsb.getIncrementHops()!=null )
fsb.getIncrementLops().addToDag(incrementDag);
// create instructions for loop predicates
ArrayList<Instruction> fromInstructions = fromDag.getJobs(null, config);
ArrayList<Instruction> toInstructions = toDag.getJobs(null, config);
ArrayList<Instruction> incrementInstructions = incrementDag.getJobs(null, config);
// create for program block
ForProgramBlock rtpb = null;
IterablePredicate iterPred = fsb.getIterPredicate();
if( sb instanceof ParForStatementBlock && ConfigurationManager.isParallelParFor() ) {
rtpb = new ParForProgramBlock(prog, iterPred.getIterVar().getName(),
iterPred.getParForParams(), ((ParForStatementBlock)sb).getResultVariables());
ParForProgramBlock pfrtpb = (ParForProgramBlock)rtpb;
pfrtpb.setStatementBlock(sb); //used for optimization and creating unscoped variables
}
else {//ForStatementBlock
rtpb = new ForProgramBlock(prog, iterPred.getIterVar().getName());
}
rtpb.setFromInstructions(fromInstructions);
rtpb.setToInstructions(toInstructions);
rtpb.setIncrementInstructions(incrementInstructions);
// process the body of the for statement block
ForStatement fs = (ForStatement)fsb.getStatement(0);
for (StatementBlock sblock : fs.getBody()){
ProgramBlock childBlock = createRuntimeProgramBlock(prog, sblock, config);
rtpb.addProgramBlock(childBlock);
}
retPB = rtpb;
//post processing for generating missing instructions
retPB.setExitInstruction(deriveExitInstruction(sb));
// add statement block
retPB.setStatementBlock(sb);
// add location information
retPB.setParseInfo(sb);
}
// process function statement block - add runtime program blocks to program
else if (sb instanceof FunctionStatementBlock){
FunctionStatementBlock fsb = (FunctionStatementBlock)sb;
FunctionStatement fstmt = (FunctionStatement)fsb.getStatement(0);
FunctionProgramBlock rtpb = null;
// create function program block
rtpb = new FunctionProgramBlock(prog, fstmt.getInputParams(), fstmt.getOutputParams());
// process the function statement body
for (StatementBlock sblock : fstmt.getBody()){
// process the body
ProgramBlock childBlock = createRuntimeProgramBlock(prog, sblock, config);
rtpb.addProgramBlock(childBlock);
}
// check there are actually Lops in to process (loop stmt body will not have any)
if (fsb.getLops() != null && !fsb.getLops().isEmpty()){
throw new LopsException(fsb.printBlockErrorLocation() + "FunctionStatementBlock should have no Lops");
}
retPB = rtpb;
// add statement block
retPB.setStatementBlock(sb);
// add location information
retPB.setParseInfo(sb);
}
else {
// handle general case
BasicProgramBlock rtpb = new BasicProgramBlock(prog);
// DAGs for Lops
dag = new Dag<>();
// check there are actually Lops in to process (loop stmt body will not have any)
if (sb.getLops() != null && !sb.getLops().isEmpty()){
for (Lop l : sb.getLops()) {
l.addToDag(dag);
}
// Instructions for Lops DAGs
instruct = dag.getJobs(sb, config);
rtpb.addInstructions(instruct);
}
retPB = rtpb;
//post processing for generating missing instructions
//retPB.setExitInstruction(deriveExitInstruction(sb));
// add statement block
retPB.setStatementBlock(sb);
// add location information
retPB.setParseInfo(sb);
}
return retPB;
}
public static void refreshMemEstimates(DMLProgram dmlp) {
// for each namespace, handle function program blocks -- forward direction
for (String namespaceKey : dmlp.getNamespaces().keySet()){
for (String fname : dmlp.getFunctionStatementBlocks(namespaceKey).keySet()){
FunctionStatementBlock fsblock = dmlp.getFunctionStatementBlock(namespaceKey, fname);
refreshMemEstimates(fsblock);
}
}
// handle statement blocks in "main" method
for (int i = 0; i < dmlp.getNumStatementBlocks(); i++) {
StatementBlock current = dmlp.getStatementBlock(i);
refreshMemEstimates(current);
}
}
private static Instruction deriveExitInstruction(StatementBlock sb) {
Set<String> rmVars = VariableSet.union(
VariableSet.minus(sb.liveIn(), sb.liveOut()),
VariableSet.minus(sb.getKill(), sb.liveOut())).getVariableNames();
return rmVars.isEmpty() ? null :
VariableCPInstruction.prepareRemoveInstruction(rmVars.toArray(new String[0]));
}
public static void refreshMemEstimates(StatementBlock current) {
MemoTable memo = new MemoTable();
if( HopRewriteUtils.isLastLevelStatementBlock(current) ) {
ArrayList<Hop> hopsDAG = current.getHops();
if (hopsDAG != null && !hopsDAG.isEmpty())
for( Hop hop : hopsDAG )
hop.refreshMemEstimates(memo);
}
if (current instanceof FunctionStatementBlock) {
FunctionStatement fstmt = (FunctionStatement)current.getStatement(0);
for (StatementBlock sb : fstmt.getBody()){
refreshMemEstimates(sb);
}
}
else if (current instanceof WhileStatementBlock) {
// handle predicate
WhileStatementBlock wstb = (WhileStatementBlock) current;
wstb.getPredicateHops().refreshMemEstimates(new MemoTable());
if (wstb.getNumStatements() > 1)
LOG.debug("While statement block has more than 1 stmt");
WhileStatement ws = (WhileStatement)wstb.getStatement(0);
for (StatementBlock sb : ws.getBody()){
refreshMemEstimates(sb);
}
}
else if (current instanceof IfStatementBlock) {
// handle predicate
IfStatementBlock istb = (IfStatementBlock) current;
istb.getPredicateHops().refreshMemEstimates(new MemoTable());
if (istb.getNumStatements() > 1)
LOG.debug("If statement block has more than 1 stmt");
IfStatement is = (IfStatement)istb.getStatement(0);
for (StatementBlock sb : is.getIfBody()){
refreshMemEstimates(sb);
}
for (StatementBlock sb : is.getElseBody()){
refreshMemEstimates(sb);
}
}
else if (current instanceof ForStatementBlock) {
// handle predicate
ForStatementBlock fsb = (ForStatementBlock) current;
if (fsb.getFromHops() != null)
fsb.getFromHops().refreshMemEstimates(new MemoTable());
if (fsb.getToHops() != null)
fsb.getToHops().refreshMemEstimates(new MemoTable());
if (fsb.getIncrementHops() != null)
fsb.getIncrementHops().refreshMemEstimates(new MemoTable());
if (fsb.getNumStatements() > 1)
LOG.debug("For statement block has more than 1 stmt");
ForStatement ws = (ForStatement)fsb.getStatement(0);
for (StatementBlock sb : ws.getBody()){
refreshMemEstimates(sb);
}
}
}
public static void resetHopsDAGVisitStatus(DMLProgram dmlp) {
// for each namespace, handle function program blocks -- forward direction
for (String namespaceKey : dmlp.getNamespaces().keySet()){
for (String fname : dmlp.getFunctionStatementBlocks(namespaceKey).keySet()){
FunctionStatementBlock fsblock = dmlp.getFunctionStatementBlock(namespaceKey, fname);
resetHopsDAGVisitStatus(fsblock);
}
}
// handle statement blocks in "main" method
for (int i = 0; i < dmlp.getNumStatementBlocks(); i++) {
StatementBlock current = dmlp.getStatementBlock(i);
resetHopsDAGVisitStatus(current);
}
}
public static void resetHopsDAGVisitStatus(StatementBlock current) {
if( HopRewriteUtils.isLastLevelStatementBlock(current) ) {
ArrayList<Hop> hopsDAG = current.getHops();
if (hopsDAG != null && !hopsDAG.isEmpty() ) {
Hop.resetVisitStatus(hopsDAG);
}
}
if (current instanceof FunctionStatementBlock) {
FunctionStatement fstmt = (FunctionStatement)current.getStatement(0);
for (StatementBlock sb : fstmt.getBody()){
resetHopsDAGVisitStatus(sb);
}
}
else if (current instanceof WhileStatementBlock) {
// handle predicate
WhileStatementBlock wstb = (WhileStatementBlock) current;
wstb.getPredicateHops().resetVisitStatus();
WhileStatement ws = (WhileStatement)wstb.getStatement(0);
for (StatementBlock sb : ws.getBody())
resetHopsDAGVisitStatus(sb);
}
else if (current instanceof IfStatementBlock) {
// handle predicate
IfStatementBlock istb = (IfStatementBlock) current;
istb.getPredicateHops().resetVisitStatus();
IfStatement is = (IfStatement)istb.getStatement(0);
for (StatementBlock sb : is.getIfBody())
resetHopsDAGVisitStatus(sb);
for (StatementBlock sb : is.getElseBody())
resetHopsDAGVisitStatus(sb);
}
else if (current instanceof ForStatementBlock) {
// handle predicate
ForStatementBlock fsb = (ForStatementBlock) current;
if (fsb.getFromHops() != null)
fsb.getFromHops().resetVisitStatus();
if (fsb.getToHops() != null)
fsb.getToHops().resetVisitStatus();
if (fsb.getIncrementHops() != null)
fsb.getIncrementHops().resetVisitStatus();
if (fsb.getNumStatements() > 1)
LOG.debug("For statment block has more than 1 stmt");
ForStatement ws = (ForStatement)fsb.getStatement(0);
for (StatementBlock sb : ws.getBody()){
resetHopsDAGVisitStatus(sb);
}
}
}
public void resetLopsDAGVisitStatus(DMLProgram dmlp) {
// for each namespace, handle function program blocks
for (String namespaceKey : dmlp.getNamespaces().keySet()){
for (String fname : dmlp.getFunctionStatementBlocks(namespaceKey).keySet()){
FunctionStatementBlock fsblock = dmlp.getFunctionStatementBlock(namespaceKey, fname);
resetLopsDAGVisitStatus(fsblock);
}
}
for (int i = 0; i < dmlp.getNumStatementBlocks(); i++) {
StatementBlock current = dmlp.getStatementBlock(i);
resetLopsDAGVisitStatus(current);
}
}
public void resetLopsDAGVisitStatus(StatementBlock current) {
ArrayList<Hop> hopsDAG = current.getHops();
if (hopsDAG != null && !hopsDAG.isEmpty() ) {
Iterator<Hop> iter = hopsDAG.iterator();
while (iter.hasNext()){
Hop currentHop = iter.next();
currentHop.getLops().resetVisitStatus();
}
}
if (current instanceof FunctionStatementBlock) {
FunctionStatementBlock fsb = (FunctionStatementBlock) current;
FunctionStatement fs = (FunctionStatement)fsb.getStatement(0);
for (StatementBlock sb : fs.getBody()){
resetLopsDAGVisitStatus(sb);
}
}
if (current instanceof WhileStatementBlock) {
WhileStatementBlock wstb = (WhileStatementBlock) current;
wstb.getPredicateLops().resetVisitStatus();
if (wstb.getNumStatements() > 1)
LOG.debug("While statement block has more than 1 stmt");
WhileStatement ws = (WhileStatement)wstb.getStatement(0);
for (StatementBlock sb : ws.getBody()){
resetLopsDAGVisitStatus(sb);
}
}
if (current instanceof IfStatementBlock) {
IfStatementBlock istb = (IfStatementBlock) current;
istb.getPredicateLops().resetVisitStatus();
if (istb.getNumStatements() > 1)
LOG.debug("If statement block has more than 1 stmt");
IfStatement is = (IfStatement)istb.getStatement(0);
for (StatementBlock sb : is.getIfBody()){
resetLopsDAGVisitStatus(sb);
}
for (StatementBlock sb : is.getElseBody()){
resetLopsDAGVisitStatus(sb);
}
}
if (current instanceof ForStatementBlock) {
ForStatementBlock fsb = (ForStatementBlock) current;
if (fsb.getFromLops() != null)
fsb.getFromLops().resetVisitStatus();
if (fsb.getToLops() != null)
fsb.getToLops().resetVisitStatus();
if (fsb.getIncrementLops() != null)
fsb.getIncrementLops().resetVisitStatus();
if (fsb.getNumStatements() > 1)
LOG.debug("For statement block has more than 1 stmt");
ForStatement ws = (ForStatement)fsb.getStatement(0);
for (StatementBlock sb : ws.getBody()){
resetLopsDAGVisitStatus(sb);
}
}
}
public void constructHops(StatementBlock sb) {
if (sb instanceof WhileStatementBlock) {
constructHopsForWhileControlBlock((WhileStatementBlock) sb);
return;
}
if (sb instanceof IfStatementBlock) {
constructHopsForIfControlBlock((IfStatementBlock) sb);
return;
}
if (sb instanceof ForStatementBlock) { //incl ParForStatementBlock
constructHopsForForControlBlock((ForStatementBlock) sb);
return;
}
if (sb instanceof FunctionStatementBlock) {
constructHopsForFunctionControlBlock((FunctionStatementBlock) sb);
return;
}
HashMap<String, Hop> ids = new HashMap<>();
ArrayList<Hop> output = new ArrayList<>();
VariableSet liveIn = sb.liveIn();
VariableSet liveOut = sb.liveOut();
VariableSet updated = sb._updated;
VariableSet gen = sb._gen;
VariableSet updatedLiveOut = new VariableSet();
// handle liveout variables that are updated --> target identifiers for Assignment
HashMap<String, Integer> liveOutToTemp = new HashMap<>();
for (int i = 0; i < sb.getNumStatements(); i++) {
Statement current = sb.getStatement(i);
if (current instanceof AssignmentStatement) {
AssignmentStatement as = (AssignmentStatement) current;
DataIdentifier target = as.getTarget();
if (target != null) {
if (liveOut.containsVariable(target.getName())) {
liveOutToTemp.put(target.getName(), Integer.valueOf(i));