RngCompsConfig.py

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"""Define functions to construct random number services
 
Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
"""
from AthenaConfiguration.ComponentAccumulator import ComponentAccumulator
from AthenaConfiguration.ComponentFactory import CompFactory
 
 
AtDSFMTGenSvc,AtRanluxGenSvc,AtRndmGenSvc,AthRNGSvc=\
CompFactory.getComps("AtDSFMTGenSvc","AtRanluxGenSvc","AtRndmGenSvc","AthRNGSvc")
 
# Translate between names in AthRNGSvc and elsewhere
AthEngines = {
    "dSFMT" : "AtDSFMTGenSvc",
    "Ranlux64" : "AtRanluxGenSvc",
    "Ranecu" : "AtRndmGenSvc",
}
 
def dSFMT(seed, name="AtDSFMTGenSvc"):
    """Return a ComponentAccumulator containing an AtDSFMTGenSvc with seed"""
    acc = ComponentAccumulator()
    service = AtDSFMTGenSvc(name)
    service.Seeds.append(seed)
    acc.addService(service, primary=True)
    return acc
 
def Ranlux64(seed, name="AtRanluxGenSvc"):
    """Return a ComponentAccumulator containing an AtRanluxGenSvc with seed"""
    acc = ComponentAccumulator()
    service = AtRanluxGenSvc(name)
    service.Seeds.append(seed)
    acc.addService(service, primary=True)
    return acc
 
def Ranecu(seed, name="AtRndmGenSvc"):
    """Return a ComponentAccumulator containing an AtRndmGenSvc with seed"""
    acc = ComponentAccumulator()
    service = AtRndmGenSvc(name)
    service.Seeds.append(seed)
    acc.addService(service, primary=True)
    return acc
 
def RNG(engine="dSFMT", name="AthRNGSvc"):
    """Return a ComponentAccumulator containing an AthRNGSvc"""
    acc = ComponentAccumulator()
    service = AthRNGSvc(name)
    service.EngineType = engine
    acc.addService(service, primary=True)
    return acc
 
def AthRNGSvcCfg(flags, name="AthRNGSvc"):
    """Return a ComponentAccumulator containing an AthRNGSvc"""
    acc = ComponentAccumulator()
    service = AthRNGSvc(name)
    service.EngineType = flags.Random.Engine
    acc.addService(service, primary=True)
    return acc