ThePEG::RandomEngineGlue Class Reference

#include <RandomEngineGlue.h>

Inheritance diagram for ThePEG::RandomEngineGlue:

Classes
class	Proxy

Public Member Functions
void	flush ()
CLHEP::HepRandomEngine *	getRandomEngine () const
	RandomEngineGlue ()
void	setRandomEngine (CLHEP::HepRandomEngine *v)
	~RandomEngineGlue () override

Static Public Member Functions
static void	Init ()

Protected Member Functions
IBPtr	clone () const override
void	doinit () noexcept(false) override
void	fill () override
IBPtr	fullclone () const override
void	setSeed (long seed) override

Private Attributes
Proxy::ProxyID	proxyID
CLHEP::HepRandomEngine *	randomEngine

Static Private Attributes
static ClassDescription< RandomEngineGlue >	initRandomEngineGlue

Detailed Description

Definition at line 24 of file RandomEngineGlue.h.

Constructor & Destructor Documentation

RandomEngineGlue::RandomEngineGlue

(

)

Definition at line 18 of file RandomEngineGlue.cc.

                                   :
    randomEngine(nullptr)
{
}

RandomEngineGlue::~RandomEngineGlue ( )

override

Definition at line 23 of file RandomEngineGlue.cc.

{
}

Member Function Documentation

IBPtr ThePEG::RandomEngineGlue::clone ( void  ) const

inlineoverrideprotected

Definition at line 65 of file RandomEngineGlue.h.

{ return new_ptr(*this); }

void RandomEngineGlue::doinit ( )

overrideprotectednoexcept

Definition at line 52 of file RandomEngineGlue.cc.

References ThePEG::Proxy< Proxy >::find(), flush(), initRandomEngineGlue, proxyID, and randomEngine.

{
    RandomGenerator::doinit();

    boost::shared_ptr<Proxy> proxy = Proxy::find(proxyID);
    if (!proxy)
        throw InitException();

    proxy->instance = this;
        randomEngine = proxy->getRandomEngine();
    flush();
}

void RandomEngineGlue::fill ( void  )

overrideprotected

Definition at line 33 of file RandomEngineGlue.cc.

References Exception, edm::errors::LogicError, and randomEngine.

{
        if(randomEngine == nullptr) {
          throw edm::Exception(edm::errors::LogicError)
            << "The PEG code attempted to a generate random number while\n"
            << "the engine pointer was null. This might mean that the code\n"
            << "was tried to generate a random number outside the event and\n"
            << "beginLuminosityBlock methods, which is not allowed.\n";
        }
    nextNumber = theNumbers.begin();
    for(RndVector::iterator it = nextNumber; it != theNumbers.end(); ++it)
        *it = randomEngine->flat();
}

void RandomEngineGlue::flush

(

)

Definition at line 27 of file RandomEngineGlue.cc.

Referenced by doinit().

{
    RandomGenerator::flush();
    gaussSaved = false;
}

IBPtr ThePEG::RandomEngineGlue::fullclone ( ) const

inlineoverrideprotected

Definition at line 66 of file RandomEngineGlue.h.

References noexcept.

{ return new_ptr(*this); }

CLHEP::HepRandomEngine* ThePEG::RandomEngineGlue::getRandomEngine ( ) const

inline

Definition at line 30 of file RandomEngineGlue.h.

References randomEngine.

{ return randomEngine; }

void RandomEngineGlue::Init ( void  )

static

Definition at line 67 of file RandomEngineGlue.cc.

References proxyID.

                            {
    typedef Proxy::ProxyID ProxyID;

    static ClassDocumentation<RandomEngineGlue> documentation
        ("Interface to the CMSSW RandomNumberEngine.");
    static Parameter<RandomEngineGlue, ProxyID> interfaceProxyID
        ("ProxyID", "The ProxyID.",
         &RandomEngineGlue::proxyID, ProxyID(),
         ProxyID(), ProxyID(), false, false, false);

    interfaceProxyID.rank(11);
}

void ThePEG::RandomEngineGlue::setRandomEngine ( CLHEP::HepRandomEngine *  v )

inline

Definition at line 29 of file RandomEngineGlue.h.

References randomEngine, and findQualityFiles::v.

Referenced by Herwig7Interface::setPEGRandomEngine().

{ randomEngine = v; }

void RandomEngineGlue::setSeed ( long  seed )

overrideprotected

Definition at line 47 of file RandomEngineGlue.cc.

{
    // we ignore this, CMSSW overrides the seed from ThePEG
}

Member Data Documentation

ClassDescription< RandomEngineGlue > RandomEngineGlue::initRandomEngineGlue

staticprivate

Definition at line 74 of file RandomEngineGlue.h.

Referenced by doinit().

Proxy::ProxyID ThePEG::RandomEngineGlue::proxyID

private

Definition at line 71 of file RandomEngineGlue.h.

Referenced by doinit(), and Init().

CLHEP::HepRandomEngine* ThePEG::RandomEngineGlue::randomEngine

private

Definition at line 72 of file RandomEngineGlue.h.

Referenced by doinit(), and fill().