anonymous_namespace{numa.cpp}::NodeData Class Reference

Public Member Functions
	NodeData (int id)
numa_node_id_t	get_id () const
void	add_cpu (cpu_id_t cpu_id)
bool	empty () const
int	num_threads () const
int	max_load () const
cpu_id_t	place_thread ()

Private Attributes
numa_node_id_t	m_ID
std::vector< cpu_id_t >	m_CPUs
	Vector of CPU ids that are on this NUMA node. More...
std::vector< int >	m_LoadIndicator
	How much work have we placed on that CPU. More...
int	NumThreads = 0

Detailed Description

Definition at line 135 of file numa.cpp.

Constructor & Destructor Documentation

NodeData()

anonymous_namespace{numa.cpp}::NodeData::NodeData ( int  id )

inlineexplicit

Definition at line 137 of file numa.cpp.

Member Function Documentation

add_cpu()

void anonymous_namespace{numa.cpp}::NodeData::add_cpu ( cpu_id_t  cpu_id )

inline

Definition at line 144 of file numa.cpp.

empty()

bool anonymous_namespace{numa.cpp}::NodeData::empty ( ) const

inline

Definition at line 149 of file numa.cpp.

get_id()

numa_node_id_t anonymous_namespace{numa.cpp}::NodeData::get_id ( ) const

inline

Definition at line 140 of file numa.cpp.

max_load()

int anonymous_namespace{numa.cpp}::NodeData::max_load ( ) const

inline

Definition at line 157 of file numa.cpp.

num_threads()

int anonymous_namespace{numa.cpp}::NodeData::num_threads ( ) const

inline

Definition at line 153 of file numa.cpp.

place_thread()

cpu_id_t anonymous_namespace{numa.cpp}::NodeData::place_thread ( )

inline

Definition at line 162 of file numa.cpp.

References dismec::parallel::COST_PLACE_HYPER_THREAD, dismec::parallel::COST_PLACE_THREAD, anonymous_namespace{numa.cpp}::for_each_shared_cache_sibling(), and anonymous_namespace{numa.cpp}::for_each_sibling().

Member Data Documentation

m_CPUs

std::vector<cpu_id_t> anonymous_namespace{numa.cpp}::NodeData::m_CPUs

private

Vector of CPU ids that are on this NUMA node.

Definition at line 187 of file numa.cpp.

m_ID

numa_node_id_t anonymous_namespace{numa.cpp}::NodeData::m_ID

private

Definition at line 186 of file numa.cpp.

m_LoadIndicator

std::vector<int> anonymous_namespace{numa.cpp}::NodeData::m_LoadIndicator

private

How much work have we placed on that CPU.

Currently uses the following heuristic: Placing a thread on the core increases the load by a value of 10, and increases the load of any core that is shared by hyperthreading by 5.

Definition at line 193 of file numa.cpp.

NumThreads

int anonymous_namespace{numa.cpp}::NodeData::NumThreads = 0

private

Definition at line 195 of file numa.cpp.

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

• src/parallel/numa.cpp