testWhiteBoard.py

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from Gaudi.Configuration import *
from Configurables import HiveWhiteBoard, HiveSlimEventLoopMgr, HiveTestAlgorithm, ForwardSchedulerSvc

evtslots = 10

whiteboard   = HiveWhiteBoard("EventDataSvc",
                              EventSlots = evtslots)

slimeventloopmgr = HiveSlimEventLoopMgr(OutputLevel=DEBUG)

scheduler = ForwardSchedulerSvc(MaxAlgosInFlight = 20,
                                ThreadPoolSize = 8,
                                OutputLevel=WARNING)

a1 = HiveTestAlgorithm("A1", Output = ['/Event/a1'])
a2 = HiveTestAlgorithm("A2", Input = ['/Event/a1'],
                             Output = ['/Event/a2'])
a3 = HiveTestAlgorithm("A3", Input = ['/Event/a1'],
                             Output = ['/Event/a3'])
a4 = HiveTestAlgorithm("A4", Input = ['/Event/a2','/Event/a3'],
                             Output = ['/Event/a4'])

ApplicationMgr( EvtMax = 100,
                EvtSel = 'NONE',
                ExtSvc =[whiteboard],
                EventLoop = slimeventloopmgr,
                TopAlg = [a1, a2, a3, a4],
                MessageSvcType="InertMessageSvc")