testWhiteBoard.py

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

evtslots = 10

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

slimeventloopmgr = HiveSlimEventLoopMgr(OutputLevel=DEBUG)

scheduler = AvalancheSchedulerSvc(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")