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1
2 =========================================================
3 Geant4 - an Object-Oriented Toolkit for Simulation in HEP
4 =========================================================
5
6 TBB/B2b
7 --------
8
9 This example shows how to integrate Intel Threading Building Block and Geant4
10 to achieve event-level parallelism.
11
12 Note that this is a preliminary version which should not be considered a
13 feature-complete example and which presents some limitations (no merging of
14 output, no correct clean-up of heap). It will be substantially improved
15 in 2014.
16
17 This example adds to B2b example, originally provided in basic example,
18 the TBB based classes:
19
20 tbbMasterRunManager:
21 --------------------
22 This class implements the master model run manager for TBB bases
23 application.
24 It is instantiated by user main (or equivalent function) instead
25 of G4[MT]RunManager. It controls the creation of tbb::tasks.
26 See G4MTRunManager for documentation of methods relative to base
27 class. Only class specific methods are documented here.
28
29 tbbWorkerRunManager
30 --------------------
31 This class implements the worker model run manager for TBB based
32 application.
33 It is instantiated by tbbUserWorkerInitialization and used by
34 tbbMasterRunManager.
35 See G4WorkerRunManager for documentation of methods relative to
36 base class. Only class specific methods are documented here.
37
38 tbbUserWorkerInitialization
39 ---------------------------
40 This class implements TBB specific worker initialization.
41 It is a sub-class of G4UserWorkerThreadInitialization.
42 Its role is to instantiate a tbbWorkerRunManager to be used by
43 tbb tasks.
44
45 tbbTask
46 ---------------------------
47 This class represents one TBB task.
