Threading.hh File Reference

#include "corecel/sys/ThreadId.hh"

Functions
StreamId	celeritas::geant_main_stream ()
	Get the worker stream ID for the program's main thread (null if MT).
StreamId	celeritas::geant_stream ()
	Get a stream ID corresponding to the current worker thread.
StreamId::size_type	celeritas::geant_num_threads ()
	Get the number of threads after initialization.

Function Documentation

geant_main_stream()

StreamId celeritas::geant_main_stream

(

)

Get the worker stream ID for the program's main thread (null if MT).

This can be compared against geant_stream . In serial execution, the main stream is also a "worker" thread (running events). In MT/tasking, the main stream is a separate manager thread, which does not run events.

geant_stream()

StreamId celeritas::geant_stream

(

)

Get a stream ID corresponding to the current worker thread.

The result is null if this is the "master" thread in MT or if the run manager hasn't been started.