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 22 of file RandomEngineGlue.h.

Constructor & Destructor Documentation

RandomEngineGlue()

RandomEngineGlue::RandomEngineGlue

(

)

Definition at line 18 of file RandomEngineGlue.cc.

: randomEngine(nullptr) {}

~RandomEngineGlue()

RandomEngineGlue::~RandomEngineGlue ( )

override

Definition at line 20 of file RandomEngineGlue.cc.

{}

Member Function Documentation

clone()

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

inlineoverrideprotected

Definition at line 63 of file RandomEngineGlue.h.

{ return new_ptr(*this); }

doinit()

void RandomEngineGlue::doinit ( )

overrideprotectednoexcept

Definition at line 43 of file RandomEngineGlue.cc.

                                              {
  RandomGenerator::doinit();
 
  std::shared_ptr<Proxy> proxy = Proxy::find(proxyID);
  if (!proxy)
    throw InitException();
 
  proxy->instance = this;
  randomEngine = proxy->getRandomEngine();
  flush();
}

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

fill()

void RandomEngineGlue::fill ( void  )

overrideprotected

Definition at line 27 of file RandomEngineGlue.cc.

                            {
  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();
}

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

flush()

void RandomEngineGlue::flush

(

)

Definition at line 22 of file RandomEngineGlue.cc.

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

Referenced by doinit().

fullclone()

IBPtr ThePEG::RandomEngineGlue::fullclone ( ) const

inlineoverrideprotected

Definition at line 64 of file RandomEngineGlue.h.

{ return new_ptr(*this); }

getRandomEngine()

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

inline

Definition at line 28 of file RandomEngineGlue.h.

{ return randomEngine; }

References randomEngine.

Init()

void RandomEngineGlue::Init ( void  )

static

Definition at line 57 of file RandomEngineGlue.cc.

                            {
  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);
}

References proxyID.

setRandomEngine()

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

inline

Definition at line 27 of file RandomEngineGlue.h.

{ randomEngine = v; }

References randomEngine, and findQualityFiles::v.

Referenced by Herwig7Interface::setPEGRandomEngine().

setSeed()

void RandomEngineGlue::setSeed ( long  seed )

overrideprotected

Definition at line 39 of file RandomEngineGlue.cc.

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

Member Data Documentation

initRandomEngineGlue

ClassDescription< RandomEngineGlue > RandomEngineGlue::initRandomEngineGlue

staticprivate

Definition at line 72 of file RandomEngineGlue.h.

proxyID

Proxy::ProxyID ThePEG::RandomEngineGlue::proxyID

private

Definition at line 69 of file RandomEngineGlue.h.

Referenced by doinit(), and Init().

randomEngine

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

private

Definition at line 70 of file RandomEngineGlue.h.

Referenced by doinit(), fill(), getRandomEngine(), and setRandomEngine().