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25 //
26 // G4UserWorkerThreadInitialization implementation
27 //
28 // Authors: M.Asai, A.Dotti (SLAC), 16 September 2013
29 // --------------------------------------------------------------------
30
31 #include "G4UserWorkerThreadInitialization.hh"
32
33 #include "G4AutoLock.hh"
34 #include "G4MTRunManagerKernel.hh"
35 #include "G4UImanager.hh"
36 #include "G4VUserActionInitialization.hh"
37 #include "G4VUserPhysicsList.hh"
38 #include "G4WorkerRunManager.hh"
39 #include "G4WorkerThread.hh"
40
41 #include <sstream>
42
43 // --------------------------------------------------------------------
44 #ifdef G4MULTITHREADED
45 G4Thread* G4UserWorkerThreadInitialization::CreateAndStartWorker(G4WorkerThread* wTC)
46 {
47 // Note: this method is called by G4MTRunManager,
48 // here we are still sequential.
49 // Create a new thread/worker structure
50 auto worker = new G4Thread;
51 G4THREADCREATE(worker, &G4MTRunManagerKernel::StartThread, wTC);
52 return worker;
53 }
54 #else
55 G4Thread* G4UserWorkerThreadInitialization::CreateAndStartWorker(G4WorkerThread*)
56 {
57 return new G4Thread;
58 }
59 #endif
60
61 // --------------------------------------------------------------------
62 #ifdef G4MULTITHREADED
63 void G4UserWorkerThreadInitialization::JoinWorker(G4Thread* aThread)
64 {
65 G4THREADJOIN(*aThread);
66 }
67 #else // Avoid compilation warning in sequential
68 void G4UserWorkerThreadInitialization::JoinWorker(G4Thread*) {}
69 #endif
70
71 // --------------------------------------------------------------------
72 namespace
73 {
74 G4Mutex rngCreateMutex = G4MUTEX_INITIALIZER;
75 }
76
77 // --------------------------------------------------------------------
78 void G4UserWorkerThreadInitialization::SetupRNGEngine(const CLHEP::HepRandomEngine* aNewRNG) const
79 {
80 G4AutoLock l(&rngCreateMutex);
81 // No default available, let's create the instance of random stuff
82 // A Call to this just forces the creation to defaults
83 G4Random::getTheEngine();
84 // Poor man's solution to check which RNG Engine is used in master thread
85 CLHEP::HepRandomEngine* retRNG = nullptr;
86
87 // Need to make these calls thread safe
88 if (dynamic_cast<const CLHEP::HepJamesRandom*>(aNewRNG) != nullptr) {
89 retRNG = new CLHEP::HepJamesRandom;
90 }
91 else if (dynamic_cast<const CLHEP::MixMaxRng*>(aNewRNG) != nullptr) {
92 retRNG = new CLHEP::MixMaxRng;
93 }
94 else if (dynamic_cast<const CLHEP::RanecuEngine*>(aNewRNG) != nullptr) {
95 retRNG = new CLHEP::RanecuEngine;
96 }
97 else if (dynamic_cast<const CLHEP::RanluxppEngine*>(aNewRNG) != nullptr) {
98 retRNG = new CLHEP::RanluxppEngine;
99 }
100 else if (dynamic_cast<const CLHEP::Ranlux64Engine*>(aNewRNG) != nullptr) {
101 const auto theRNG = dynamic_cast<const CLHEP::Ranlux64Engine*>(aNewRNG);
102 retRNG = new CLHEP::Ranlux64Engine(123, theRNG->getLuxury());
103 }
104 else if (dynamic_cast<const CLHEP::MTwistEngine*>(aNewRNG) != nullptr) {
105 retRNG = new CLHEP::MTwistEngine;
106 }
107 else if (dynamic_cast<const CLHEP::DualRand*>(aNewRNG) != nullptr) {
108 retRNG = new CLHEP::DualRand;
109 }
110 else if (dynamic_cast<const CLHEP::RanluxEngine*>(aNewRNG) != nullptr) {
111 const auto theRNG = dynamic_cast<const CLHEP::RanluxEngine*>(aNewRNG);
112 retRNG = new CLHEP::RanluxEngine(123, theRNG->getLuxury());
113 }
114 else if (dynamic_cast<const CLHEP::RanshiEngine*>(aNewRNG) != nullptr) {
115 retRNG = new CLHEP::RanshiEngine;
116 }
117
118 if (retRNG != nullptr) {
119 G4Random::setTheEngine(retRNG);
120 }
121 else {
122 // Does a new method, such as aNewRng->newEngine() exist to clone it ?
123 G4ExceptionDescription msg;
124 msg << " Unknown type of RNG Engine - " << G4endl
125 << " Can cope only with HepJamesRandom, MixMaxRng, Ranecu, Ranlux64,"
126 << " Ranlux++, MTwistEngine, DualRand, Ranlux or Ranshi." << G4endl
127 << " Cannot clone this type of RNG engine, as required for this thread" << G4endl
128 << " Aborting " << G4endl;
129 G4Exception("G4UserWorkerThreadInitialization::SetupRNGEngine()", "Run0122", FatalException,
130 msg);
131 }
132 }
133
134 // --------------------------------------------------------------------
135 G4WorkerRunManager* G4UserWorkerThreadInitialization::CreateWorkerRunManager() const
136 {
137 return new G4WorkerRunManager();
138 }
139