#include <mapping_utilities.h>

Classes
struct	MemoizedMapping

Public Member Functions
bool	has_mapping (Processor target, const Task *task, unsigned index) const

bool	recall_mapping (Processor target, const Task *task, unsigned index, std::vector< Memory > &ranking) const

Memory	recall_chosen (Processor target, const Task *task, unsigned index) const

void	record_mapping (Processor target, const Task *task, unsigned index, const std::vector< Memory > &ranking)

void	notify_mapping (Processor target, const Task *task, unsigned index, Memory result)

void	commit_mapping (Processor target, const Task *task)

Protected Types
typedef std::pair< Processor, Processor::TaskFuncID >	MappingKey

Protected Attributes
std::map< MappingKey, MemoizedMapping >	temporary_mappings

std::map< MappingKey, MemoizedMapping >	permanent_mappings

Detailed Description

A mapping memoizer class for storing mappings for (processor,task_id) pairs. There is a two-phase process with the memoizer. All calls to record and notify mapping will update a temporary memoized mapping. If the performance of the mapping is good, then the programmer can commit the mapping as the permanent mapping for the pair. Otherwise the next calls to record and notify will overwrite the temporary mapping. If no temporary mapping is commited then the mapping memoizer will continue to return false for calls to has_mapping.

Member Function Documentation

◆ commit_mapping()

void Legion::Mapping::Utilities::MappingMemoizer::commit_mapping	(	Processor	target,
		const Task *	task
	)

Commit the mapping as the permanent mapping

◆ has_mapping()

bool Legion::Mapping::Utilities::MappingMemoizer::has_mapping	(	Processor	target,
		const Task *	task,
		unsigned	index
	)		const

Check to see if there is a memoized mapping for this task on the given processor.

◆ notify_mapping()

void Legion::Mapping::Utilities::MappingMemoizer::notify_mapping	(	Processor	target,
		const Task *	task,
		unsigned	index,
		Memory	result
	)

Remember exactly which memory was chosen for the temporary mapping

◆ recall_chosen()

Memory Legion::Mapping::Utilities::MappingMemoizer::recall_chosen	(	Processor	target,
		const Task *	task,
		unsigned	index
	)		const

Get the memory chosen for this mapping. Returns NO_MEMORY if it can't find it.

◆ recall_mapping()

bool Legion::Mapping::Utilities::MappingMemoizer::recall_mapping	(	Processor	target,
		const Task *	task,
		unsigned	index,
		std::vector< Memory > &	ranking
	)		const

Get back the mapping for this task on the given processor. Returns true on success.

◆ record_mapping()

void Legion::Mapping::Utilities::MappingMemoizer::record_mapping	(	Processor	target,
		const Task *	task,
		unsigned	index,
		const std::vector< Memory > &	ranking
	)

Store a temporary mapping for this task on the given processor

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

mappers/mapping_utilities.h

Classes

Public Member Functions

Protected Types

Protected Attributes