Geant4  10.03.p03
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
G4MPIrandomSeedGenerator.cc
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
27 
28 #include "mpi.h"
29 #include "Randomize.hh"
30 #include "G4MPImanager.hh"
32 
33 // --------------------------------------------------------------------------
36 {
37  GenerateSeeds();
38 }
39 
40 // --------------------------------------------------------------------------
42 {
43 }
44 
45 // --------------------------------------------------------------------------
47 {
49 
50  G4int nsize = g4mpi-> GetSize();
51 
52  for ( G4int i = 0; i < nsize; i++ ) {
53  for ( G4int j = 0; j < nsize; j++ ) {
54  if( (i != j) && (seed_list_[i] == seed_list_[j]) ) {
56  seed_list_[j] = G4long(x*LONG_MAX);
57  return false;
58  }
59  }
60  }
61 
62  return true;
63 }
64 
65 // --------------------------------------------------------------------------
67 {
69 
70  G4int nsize = g4mpi-> GetSize();
71 
72  seed_list_.clear();
73 
74  for ( G4int i = 0; i < nsize; i++ ) {
76  G4int seed = G4long(x*LONG_MAX);
77  seed_list_.push_back(seed);
78  }
79 
80  while(! CheckDoubleCount()) {
81  continue;
82  }
83 }
An implementation of random number seed distribution.
long G4long
Definition: G4Types.hh:80
tuple x
Definition: test.py:50
int G4int
Definition: G4Types.hh:78
#define G4UniformRand()
Definition: Randomize.hh:97
MPI manager class.
long seed
Definition: chem4.cc:68
bool G4bool
Definition: G4Types.hh:79
static G4MPImanager * GetManager()
std::vector< G4long > seed_list_
double G4double
Definition: G4Types.hh:76