SequentialAlgSequencerTest.py

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from Gaudi.Configuration import *
from Configurables import (HiveWhiteBoard, HiveSlimEventLoopMgr,
                           AvalancheSchedulerSvc, AlgResourcePool, CPUCruncher,
                           ContextEventCounterPtr, ContextEventCounterData,
                           CPUCrunchSvc, GaudiSequencer)

# metaconfig -------------------------------------------------------------------
# It's confortable to collect the relevant parameters at the top of the optionfile
evtslots = 5
evtMax = 20
cardinality = 5
algosInFlight = 10
# -------------------------------------------------------------------------------

# The configuration of the whiteboard ------------------------------------------
# It is useful to call it EventDataSvc to replace the usual data service with
# the whiteboard transparently.

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

# -------------------------------------------------------------------------------

# Event Loop Manager -----------------------------------------------------------
# It's called slim since it has less functionalities overall than the good-old
# event loop manager. Here we just set its outputlevel to DEBUG.

slimeventloopmgr = HiveSlimEventLoopMgr(OutputLevel=DEBUG)

# -------------------------------------------------------------------------------

# Avalanche Scheduler ----------------------------------------------------------
# We just decide how many algorithms in flight we want to have and how many
# threads in the pool. The default value is -1, which is for TBB equivalent
# to take over the whole machine.

scheduler = AvalancheSchedulerSvc(
    ThreadPoolSize=algosInFlight, OutputLevel=DEBUG)

# -------------------------------------------------------------------------------

# Algo Resource Pool -----------------------------------------------------------
# Nothing special here, we just set the debug level.
AlgResourcePool(OutputLevel=DEBUG)

CPUCrunchSvc(shortCalib=True)

# -------------------------------------------------------------------------------

# Set up of the crunchers, daily business --------------------------------------

a1 = CPUCruncher("A1")
a1.outKeys = ['/Event/a1']

a2 = CPUCruncher("A2")
a2.inpKeys = ['/Event/a1']
a2.outKeys = ['/Event/a2']

a3 = CPUCruncher("A3")
a3.inpKeys = ['/Event/a1']
a3.outKeys = ['/Event/a3']

a4 = CPUCruncher("A4")
a4.inpKeys = ['/Event/a2']
a4.outKeys = ['/Event/a4']

for algo in [a1, a2, a3, a4]:
    algo.OutputLevel = DEBUG
    algo.varRuntime = .3
    algo.avgRuntime = .5

for algo in [a3]:
    algo.Cardinality = cardinality

seq = GaudiSequencer(
    "CriticalSection",
    Members=[a1, a2, a4],
    Sequential=True,
    OutputLevel=VERBOSE)

# Application Manager ----------------------------------------------------------
# We put everything together and change the type of message service

ApplicationMgr(
    EvtMax=evtMax,
    EvtSel='NONE',
    ExtSvc=[whiteboard],
    EventLoop=slimeventloopmgr,
    TopAlg=[seq, a3],
    MessageSvcType="InertMessageSvc")