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G4INCL::Ranecu3 Class Reference

Extended Ranecu-type RNG class. More...

#include <G4INCLRanecu3.hh>

Inheritance diagram for G4INCL::Ranecu3:
Collaboration diagram for G4INCL::Ranecu3:

Public Member Functions

 Ranecu3 ()
 
 Ranecu3 (const Random::SeedVector &sv)
 
virtual ~Ranecu3 ()
 
Random::SeedVector getSeeds ()
 
void setSeeds (const Random::SeedVector &sv)
 
G4double flat ()
 
- Public Member Functions inherited from G4INCL::IRandomGenerator
 IRandomGenerator ()
 
virtual ~IRandomGenerator ()
 

Detailed Description

Extended Ranecu-type RNG class.

This generator implements the C++ version of the generator suggested by Badal and Sempau, Comp. Phys. Comm. 175 (2006) 440. It uses three 32-bit seeds and has a period of ~5E27.

Definition at line 59 of file G4INCLRanecu3.hh.

Constructor & Destructor Documentation

G4INCL::Ranecu3::Ranecu3 ( )

Definition at line 49 of file G4INCLRanecu3.cc.

49  :
50  iseed1(666),
51  iseed2(777),
52  iseed3(1234),
53  i1(0), i2(0), i3(0), iz(0),
54  uscale(1.0/2.147483563e9),
55  m1(2147483563), m2(2147483399), m3(2147482739),
56  a1(40014), a2(40692), a3(45742),
57  q1(m1/a1), q2(m2/a2), q3(m3/a3),
58  r1(m1%a1), r2(m2%a2), r3(m3%a3)
59  {
60  }
G4INCL::Ranecu3::Ranecu3 ( const Random::SeedVector sv)

Definition at line 62 of file G4INCLRanecu3.cc.

62  :
63  i1(0), i2(0), i3(0), iz(0),
64  uscale(1.0/2.147483563e9),
65  m1(2147483563), m2(2147483399), m3(2147482739),
66  a1(53668), a2(52774), a3(46947),
67  q1(m1/a1), q2(m2/a2), q3(m3/a3),
68  r1(m1%a1), r2(m2%a2), r3(m3%a3)
69  {
70  setSeeds(sv);
71  }
void setSeeds(const Random::SeedVector &sv)

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G4INCL::Ranecu3::~Ranecu3 ( )
virtual

Definition at line 73 of file G4INCLRanecu3.cc.

73 {}

Member Function Documentation

G4double G4INCL::Ranecu3::flat ( )
virtual

Implements G4INCL::IRandomGenerator.

Definition at line 75 of file G4INCLRanecu3.cc.

76  {
77  i1=iseed1/q1;
78  iseed1=a1*(iseed1-i1*q1)-i1*r1;
79  if(iseed1 < 0) iseed1 = iseed1 + m1;
80 
81  i2=iseed2/q2;
82  iseed2=a2*(iseed2-i2*q2)-i2*r2;
83  if(iseed2 < 0) iseed2 = iseed2 + m2;
84 
85  i3=iseed3/q3;
86  iseed3=a3*(iseed3-i3*q3)-i3*r3;
87  if(iseed3 < 0) iseed3 = iseed3 + m3;
88 
89  iz = iseed1 - iseed2 + iseed3;
90  if(iz < 1) iz = iz + 2147483562;
91 
92  return iz*uscale;
93  }
Random::SeedVector G4INCL::Ranecu3::getSeeds ( )
inlinevirtual

Implements G4INCL::IRandomGenerator.

Definition at line 65 of file G4INCLRanecu3.hh.

65  {
66  Random::SeedVector sv;
67  sv.push_back(iseed1);
68  sv.push_back(iseed2);
69  sv.push_back(iseed3);
70  return sv;
71  }
void G4INCL::Ranecu3::setSeeds ( const Random::SeedVector sv)
inlinevirtual

Implements G4INCL::IRandomGenerator.

Definition at line 73 of file G4INCLRanecu3.hh.

73  {
74 // assert(sv.size()>=3);
75  iseed1 = sv[0];
76  iseed2 = sv[1];
77  iseed3 = sv[2];
78  }

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The documentation for this class was generated from the following files: