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120 lines
3.7 KiB
120 lines
3.7 KiB
/* |
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* Copyright 2008-2012 NVIDIA Corporation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/*! \file random.h |
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* \brief Pseudo-random number generators. |
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*/ |
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#pragma once |
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#include <thrust/detail/config.h> |
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#include <thrust/detail/cstdint.h> |
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// RNGs |
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#include <thrust/random/discard_block_engine.h> |
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#include <thrust/random/linear_congruential_engine.h> |
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#include <thrust/random/linear_feedback_shift_engine.h> |
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#include <thrust/random/subtract_with_carry_engine.h> |
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#include <thrust/random/xor_combine_engine.h> |
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// distributions |
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#include <thrust/random/uniform_int_distribution.h> |
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#include <thrust/random/uniform_real_distribution.h> |
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#include <thrust/random/normal_distribution.h> |
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namespace thrust |
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{ |
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/*! \addtogroup random Random Number Generation |
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* \{ |
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*/ |
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/*! \namespace thrust::random |
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* \brief \p thrust::random is the namespace which contains random number engine class templates, |
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* random number engine adaptor class templates, engines with predefined parameters, |
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* and random number distribution class templates. They are provided in a separate namespace |
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* for import convenience but are also aliased in the top-level \p thrust namespace for |
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* easy access. |
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*/ |
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namespace random |
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{ |
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/*! \addtogroup predefined_random Random Number Engines with Predefined Parameters |
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* \ingroup random |
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* \{ |
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*/ |
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/*! \typedef ranlux24 |
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* \brief A random number engine with predefined parameters which implements the |
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* RANLUX level-3 random number generation algorithm. |
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* \note The 10000th consecutive invocation of a default-constructed object of type \p ranlux24 |
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* shall produce the value \c 9901578 . |
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*/ |
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typedef discard_block_engine<ranlux24_base, 223, 23> ranlux24; |
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/*! \typedef ranlux48 |
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* \brief A random number engine with predefined parameters which implements the |
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* RANLUX level-4 random number generation algorithm. |
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* \note The 10000th consecutive invocation of a default-constructed object of type \p ranlux48 |
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* shall produce the value \c 88229545517833 . |
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*/ |
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typedef discard_block_engine<ranlux48_base, 389, 11> ranlux48; |
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/*! \typedef taus88 |
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* \brief A random number engine with predefined parameters which implements |
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* L'Ecuyer's 1996 three-component Tausworthe random number generator. |
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* |
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* \note The 10000th consecutive invocation of a default-constructed object of type \p taus88 |
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* shall produce the value \c 3535848941 . |
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*/ |
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typedef xor_combine_engine< |
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linear_feedback_shift_engine<thrust::detail::uint32_t, 32u, 31u, 13u, 12u>, |
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0, |
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xor_combine_engine< |
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linear_feedback_shift_engine<thrust::detail::uint32_t, 32u, 29u, 2u, 4u>, 0, |
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linear_feedback_shift_engine<thrust::detail::uint32_t, 32u, 28u, 3u, 17u>, 0 |
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>, |
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0 |
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> taus88; |
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/*! \typedef default_random_engine |
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* \brief An implementation-defined "default" random number engine. |
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* \note \p default_random_engine is currently an alias for \p minstd_rand, and may change |
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* in a future version. |
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*/ |
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typedef minstd_rand default_random_engine; |
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/*! \} // end predefined_random |
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*/ |
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} // end random |
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/*! \} // end random |
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*/ |
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// import names into thrust:: |
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using random::ranlux24; |
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using random::ranlux48; |
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using random::taus88; |
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using random::default_random_engine; |
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} // end thrust |
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