Threads

Collaboration diagram for Threads:

Files
file	thread.cc
	Implements Dqueue, Thread, ThreadBase and ThreadPool.
file	thread.h
	Implements Dqueue, Thread, ThreadBase and ThreadPool.
file	thread_info.h
	Implements thread introspection.

Classes
class	madness::PoolTaskInterface
	Lowest level task interface. More...
class	madness::PoolTaskNull
	A no-operation task used for various purposes. More...
class	madness::TaskAttributes
	Contains attributes of a task. More...
class	madness::TaskThreadEnv
	Used to pass information about the thread environment to a user's task. More...
class	madness::Thread
	Simplified thread wrapper to hide pthread complexity. More...
class	madness::ThreadBase
	Simplified thread wrapper to hide pthread complexity. More...
class	madness::ThreadPool
	A singleton pool of threads for dynamic execution of tasks. More...
class	madness::ThreadPoolThread
	ThreadPool thread object. More...

Functions
void	madness::threadpool_wait_policy (WaitPolicy policy, int sleep_duration_in_microseconds=0)

Detailed Description

Todo:

Write this section.

Function Documentation

threadpool_wait_policy()

void madness::threadpool_wait_policy ( WaitPolicy  policy, int  sleep_duration_in_microseconds = 0  )

inline

Controls how aggressively ThreadPool holds on to the OS threads while waiting for work. Currently useful only for Pthread pool when it's using spinlocks; NOT used for TBB or PaRSEC.

Parameters

policy

specifies how to wait for work; WaitPolicy::Busy – threads are kept busy (default); recommended when intensive work is only performed by MADNESS threads WaitPolicy::Yield – thread yields; recommended when intensive work is performed primarily by non-MADNESS threads WaitPolicy::Sleep – thread sleeps for sleep_duration_in_microseconds ; recommended when intensive work is performed by MADNESS nd non-MADNESS threads

sleep_duration_in_microseconds

if policy==WaitPolicy::Sleep this specifies the duration of sleep, in microseconds

References madness::ThreadPool::set_wait_policy().