Package org.apache.sysds.hops.rewrite

Class ProgramRewriter

java.lang.Object

org.apache.sysds.hops.rewrite.ProgramRewriter

public class ProgramRewriter
extends Object

This program rewriter applies a variety of rule-based rewrites on all hop dags of the given program in one pass over the entire program.

Constructor Summary

Constructors

Constructor	Description
ProgramRewriter()
ProgramRewriter(boolean staticRewrites, boolean dynamicRewrites)
ProgramRewriter(ArrayList<HopRewriteRule> hRewrites, ArrayList<StatementBlockRewriteRule> sbRewrites)	Construct a program rewriter for the given rewrite sets which are passed from outside.
ProgramRewriter(HopRewriteRule... rewrites)	Construct a program rewriter for a given rewrite which is passed from outside.
ProgramRewriter(StatementBlockRewriteRule... rewrites)	Construct a program rewriter for a given rewrite which is passed from outside.

Method Summary

Modifier and Type	Method	Description
void	removeHopRewrite(Class<? extends HopRewriteRule> clazz)
void	removeStatementBlockRewrite(Class<? extends StatementBlockRewriteRule> clazz)
ArrayList<Hop>	rewriteHopDAG(ArrayList<Hop> roots, ProgramRewriteStatus state)
Hop	rewriteHopDAG(Hop root, ProgramRewriteStatus state)
void	rewriteHopDAGsFunction(FunctionStatementBlock fsb, boolean splitDags)
void	rewriteHopDAGsFunction(FunctionStatementBlock fsb, ProgramRewriteStatus state, boolean splitDags)
ProgramRewriteStatus	rewriteProgramHopDAGs(DMLProgram dmlp)
ProgramRewriteStatus	rewriteProgramHopDAGs(DMLProgram dmlp, boolean splitDags)
ProgramRewriteStatus	rewriteProgramHopDAGs(DMLProgram dmlp, boolean splitDags, ProgramRewriteStatus state)
ArrayList<StatementBlock>	rRewriteStatementBlock(StatementBlock sb, ProgramRewriteStatus status, boolean splitDags)
void	rRewriteStatementBlockHopDAGs(StatementBlock current, ProgramRewriteStatus state)
ArrayList<StatementBlock>	rRewriteStatementBlocks(ArrayList<StatementBlock> sbs, ProgramRewriteStatus status, boolean splitDags)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ProgramRewriter

public ProgramRewriter()

ProgramRewriter

public ProgramRewriter(boolean staticRewrites,
                       boolean dynamicRewrites)

ProgramRewriter

public ProgramRewriter(HopRewriteRule... rewrites)

Construct a program rewriter for a given rewrite which is passed from outside.

Parameters:

rewrites - the HOP rewrite rules

ProgramRewriter

public ProgramRewriter(StatementBlockRewriteRule... rewrites)

Construct a program rewriter for a given rewrite which is passed from outside.

Parameters:

rewrites - the statement block rewrite rules

ProgramRewriter

public ProgramRewriter(ArrayList<HopRewriteRule> hRewrites,
                       ArrayList<StatementBlockRewriteRule> sbRewrites)

Construct a program rewriter for the given rewrite sets which are passed from outside.

Parameters:

hRewrites - HOP rewrite rules

sbRewrites - statement block rewrite rules

Method Detail

removeHopRewrite

public void removeHopRewrite(Class<? extends HopRewriteRule> clazz)

removeStatementBlockRewrite

public void removeStatementBlockRewrite(Class<? extends StatementBlockRewriteRule> clazz)

rewriteProgramHopDAGs

public ProgramRewriteStatus rewriteProgramHopDAGs(DMLProgram dmlp)

rewriteProgramHopDAGs

public ProgramRewriteStatus rewriteProgramHopDAGs(DMLProgram dmlp,
                                                  boolean splitDags)

rewriteProgramHopDAGs

public ProgramRewriteStatus rewriteProgramHopDAGs(DMLProgram dmlp,
                                                  boolean splitDags,
                                                  ProgramRewriteStatus state)

rewriteHopDAGsFunction

public void rewriteHopDAGsFunction(FunctionStatementBlock fsb,
                                   boolean splitDags)

rewriteHopDAGsFunction

public void rewriteHopDAGsFunction(FunctionStatementBlock fsb,
                                   ProgramRewriteStatus state,
                                   boolean splitDags)

rRewriteStatementBlockHopDAGs

public void rRewriteStatementBlockHopDAGs(StatementBlock current,
                                          ProgramRewriteStatus state)

rewriteHopDAG

public ArrayList<Hop> rewriteHopDAG(ArrayList<Hop> roots,
                                    ProgramRewriteStatus state)

rewriteHopDAG

public Hop rewriteHopDAG(Hop root,
                         ProgramRewriteStatus state)

rRewriteStatementBlocks

public ArrayList<StatementBlock> rRewriteStatementBlocks(ArrayList<StatementBlock> sbs,
                                                         ProgramRewriteStatus status,
                                                         boolean splitDags)

rRewriteStatementBlock

public ArrayList<StatementBlock> rRewriteStatementBlock(StatementBlock sb,
                                                        ProgramRewriteStatus status,
                                                        boolean splitDags)