Package org.apache.sysds.hops.ipa

Class IPAPassFlagLoopsRecompileOnce

java.lang.Object

org.apache.sysds.hops.ipa.IPAPass

org.apache.sysds.hops.ipa.IPAPassFlagLoopsRecompileOnce

public class IPAPassFlagLoopsRecompileOnce
extends IPAPass

This rewrite marks loops in the main program as recompile once in order to reduce recompilation overhead. We mark only top-level loops and thus don't need any reset because these loops are executed just once. All other loops are handled by the function-recompile-once rewrite already.

Constructor Summary

Constructors

Constructor	Description
IPAPassFlagLoopsRecompileOnce()

Method Summary

Modifier and Type	Method	Description
boolean	isApplicable(FunctionCallGraph fgraph)	Indicates if an IPA pass is applicable for the current configuration such as global flags or the chosen execution mode (e.g., HYBRID).
boolean	rewriteProgram(DMLProgram prog, FunctionCallGraph fgraph, FunctionCallSizeInfo fcallSizes)	Rewrites the given program or its functions in place, with access to the read-only function call graph.
boolean	rFlagFunctionForRecompileOnce(StatementBlock sb)

Methods inherited from class java.lang.Object

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

Constructor Details

IPAPassFlagLoopsRecompileOnce

public IPAPassFlagLoopsRecompileOnce()

Method Details

isApplicable

public boolean isApplicable(FunctionCallGraph fgraph)

Description copied from class: IPAPass

Indicates if an IPA pass is applicable for the current configuration such as global flags or the chosen execution mode (e.g., HYBRID).

Specified by:

isApplicable in class IPAPass

Parameters:

fgraph - function call graph

Returns:

true if applicable.

rewriteProgram

public boolean rewriteProgram(DMLProgram prog,
 FunctionCallGraph fgraph,
 FunctionCallSizeInfo fcallSizes)

Description copied from class: IPAPass

Rewrites the given program or its functions in place, with access to the read-only function call graph.

Specified by:

rewriteProgram in class IPAPass

Parameters:

prog - dml program

fgraph - function call graph

fcallSizes - function call size infos

Returns:

true if function call graph should be rebuild

rFlagFunctionForRecompileOnce

public boolean rFlagFunctionForRecompileOnce(StatementBlock sb)