--- trunk/OOPSE-4/src/math/ParallelRandNumGen.hpp 2005/03/01 23:02:33 2072 +++ trunk/OOPSE-4/src/math/ParallelRandNumGen.hpp 2005/04/15 22:04:00 2204 @@ -1,4 +1,4 @@ - /* +/* * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved. * * The University of Notre Dame grants you ("Licensee") a @@ -43,93 +43,40 @@ #define MATH_PARALLELRANDNUMGEN_HPP #include -#include "MersenneTwister.hpp" -#include "utils/simError.h" +#include "utils/simError.h" +#include "math/RandNumGen.hpp" #ifdef IS_MPI namespace oopse { -/** - * @class ParallelRandNumGen a parallel random number generator - * @note use MTRand if you want a non-parallel random number generator in MPI enviroment - */ -class ParallelRandNumGen{ - public: - typedef unsigned long uint32; + /** + * @class ParallelRandNumGen a parallel random number generator + * @note use SeqRandNumGen if you want a non-parallel random number generator. + */ + class ParallelRandNumGen : public RandNumGen{ + public: + typedef unsigned long uint32; - ParallelRandNumGen( const uint32& oneSeed); - ParallelRandNumGen(); + ParallelRandNumGen( const uint32& oneSeed); - ~ParallelRandNumGen() { - delete mtRand_; - } - - /** Returns a real number in [0,1] */ - double rand() { - return mtRand_->rand(); - } - - /** Returns a real number in [0, n] */ - double rand( const double& n ) { - return mtRand_->rand(n); - } - - /** Returns a real number in [0, 1) */ - double randExc() { - return mtRand_->randExc(); - } - - /** Returns a real number in [0, n) */ - double randExc( const double& n ) { - return mtRand_->randExc(n); - } - - /** Returns a real number in (0, 1) */ - double randDblExc() { - return mtRand_->randDblExc(); - } - - /** Returns a real number in (0, n) */ - double randDblExc( const double& n ) { - return mtRand_->randDblExc(n); - } - - /** Returns aninteger in [0,2^32-1] */ - uint32 randInt() { - return mtRand_->randInt(); - } - - /** Returns aninteger in [0, n] for n < 2^32 */ - uint32 randInt( const uint32& n ) { - return mtRand_->randInt(n); - } + ParallelRandNumGen(); - /** Returns a 53-bitreal number in [0,1) (capacity of IEEE double precision) */ - double rand53() { - return mtRand_->rand53(); - } + virtual void seed( const uint32 oneSeed ); - /** Access to nonuniform random number distributions */ - double randNorm( const double& mean, const double& variance) { - return mtRand_->randNorm(mean, variance); - } - - // Re-seeding functions with same behavior as initializers - void seed( const uint32 oneSeed ); - - void seed(); + virtual void seed(); - private: + private: + + ParallelRandNumGen(const ParallelRandNumGen&); + ParallelRandNumGen& operator =(const ParallelRandNumGen&); - MTRand* mtRand_; + static int nCreatedRNG_; /**< number of created random number of generator*/ + int myRank_; /**@todo Fixed Me */ + }; - static int nCreatedRNG_; /**< number of created random number of generator*/ - -}; - } #endif