toolbox::loadbalancing::DefaultConfiguration Class Reference

#include <Configuration.h>

Inheritance diagram for toolbox::loadbalancing::DefaultConfiguration:

Collaboration diagram for toolbox::loadbalancing::DefaultConfiguration:

Public Member Functions
	DefaultConfiguration (int maxTreesPerRank=0)
	Create default configuration.
virtual bool	makeSplitDependOnMemory (State state) override
	Use the operating system's memory queries to get the memory out and to veto too many local splits.
virtual int	getMaxLocalTreesPerRank (State state) override
	Constraint on the number of trees per rank.
virtual double	getWorstCaseBalancingRatio (State state) override
	Control when to balance between ranks.
virtual int	getMinTreeSize (State state) override
	Minimum tree size.
virtual peano4::SplitInstruction::Mode	getMode (State state) override
Public Member Functions inherited from toolbox::loadbalancing::Configuration
virtual	~Configuration ()=default
virtual std::string	toString () const

Private Attributes
const int	_maxTreesPerRank

Detailed Description

Definition at line 66 of file Configuration.h.

Constructor & Destructor Documentation

DefaultConfiguration()

toolbox::loadbalancing::DefaultConfiguration::DefaultConfiguration

(

int

maxTreesPerRank = 0

)

Create default configuration.

If you don't specify how many trees you allow per rank, then the code will try to maximise the utilisation.

Definition at line 10 of file Configuration.cpp.

Member Function Documentation

getMaxLocalTreesPerRank()

int toolbox::loadbalancing::DefaultConfiguration::getMaxLocalTreesPerRank ( State state )

overridevirtual

Constraint on the number of trees per rank.

The number is always constrained by peano4::parallel::Node::MaxSpacetreesPerRank, but you can cut it down further.

You can use an arbitary large value if you don't care bout a maximum number of subpartitions per rank. I however do recommend that you return peano4::parallel::Node::MaxSpacetreesPerRank.

Implements toolbox::loadbalancing::Configuration.

Definition at line 18 of file Configuration.cpp.

getMinTreeSize()

int toolbox::loadbalancing::DefaultConfiguration::getMinTreeSize ( State state )

overridevirtual

Minimum tree size.

Implements toolbox::loadbalancing::Configuration.

Definition at line 26 of file Configuration.cpp.

getMode()

peano4::SplitInstruction::Mode toolbox::loadbalancing::DefaultConfiguration::getMode ( State state )

overridevirtual

Implements toolbox::loadbalancing::Configuration.

Definition at line 30 of file Configuration.cpp.

References peano4::SplitInstruction::BottomUp.

getWorstCaseBalancingRatio()

double toolbox::loadbalancing::DefaultConfiguration::getWorstCaseBalancingRatio ( State state )

overridevirtual

Control when to balance between ranks.

Implements toolbox::loadbalancing::Configuration.

Definition at line 22 of file Configuration.cpp.

makeSplitDependOnMemory()

bool toolbox::loadbalancing::DefaultConfiguration::makeSplitDependOnMemory ( State state )

overridevirtual

Use the operating system's memory queries to get the memory out and to veto too many local splits.

Each split creates some overhead, so it can happen that we run out of memory.

Implements toolbox::loadbalancing::Configuration.

Definition at line 14 of file Configuration.cpp.

Field Documentation

_maxTreesPerRank

const int toolbox::loadbalancing::DefaultConfiguration::_maxTreesPerRank

private

Definition at line 68 of file Configuration.h.

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The documentation for this class was generated from the following files:

• src/toolbox/loadbalancing/Configuration.h
• src/toolbox/loadbalancing/Configuration.cpp