SFMT: Main Page

This is SIMD oriented Fast Mersenne Twister pseudorandom number generator(SFMT). This Project provides pseudorandom number generators of various Mersenne Prime Period: from 2⁶⁰⁷-1 to 2²¹⁶⁰⁹¹-1.

Please check endianness in source codes carefully, if you are using BIG ENDIAN.

void sfmt_init_gen_rand() initializes the generator with a 32-bit integer seed.
void sfmt_init_by_array() initializes the generator with an array of 32-bit integers as the seeds.
uint32_t sfmt_genrand_uint32() generates and returns a pseudorandom 32-bit unsigned integer.
uint32_t sfmt_genrand_uint64() generates and returns a pseudorandom 64-bit unsigned integer.
void sfmt_fill_array32() fills the user-specified array with 32-bit pseudorandom integers.
void sfmt_fill_array64() fills the user-specified array with 64-bit pseudorandom integers.
inline static double sfmt_to_real1(uint32_t v) convert v to double on [0,1]-real-interval.
inline static double sfmt_genrand_real1(sfmt_t * sfmt) generates a random number on [0,1]-real-interval.
inline static double sfmt_to_real2(uint32_t v) convert v to double on [0,1)-real-interval.
inline static double sfmt_genrand_real2(sfmt_t * sfmt) generates a random number on [0,1)-real-interval.
inline static double sfmt_to_real3(uint32_t v) convert v to double on (0,1)-real-interval.
inline static double sfmt_genrand_real3(sfmt_t * sfmt) generates a random number on (0,1)-real-interval.
inline static double sfmt_to_res53(uint64_t v) convert v to double on [0,1) with 53-bit resolution
inline static double sfmt_genrand_res53(sfmt_t * sfmt) generates a random number on [0,1) with 53-bit resolution
inline static double sfmt_to_res53_mix(uint32_t x, uint32_t y) convert v to double on [0,1) with 53-bit resolution from two 32bit integers.
inline static double sfmt_genrand_res53_mix(sfmt_t * sfmt) generates a random number on [0,1) with 53-bit resolution using 32bit generation.
+
Each SFMT.xxx.out.txt file contains 1000 outputs of sfmt_genrand_uint32() initialized by sfmt_init_gen_rand(1234), and 1000 outputs of sfmt_genrand_uint32() initialized by sfmt_init_by_array() with an array of {0x1234, 0x5678, 0x9abc, 0xdef0}.
+
see How to compile to compile your program with SFMT optimized for SIMD.
+

Author:: Mutsuo Saito (saito.nosp@m.@mat.nosp@m.h.sci.nosp@m..hir.nosp@m.oshim.nosp@m.a-u..nosp@m.ac.jp) (Hiroshima University); +Makoto Matsumoto (The University of Tokyo)

Date:: 2012-6-27

Copyright (C) 2006, 2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima University. All rights reserved. Copyright (C) 2012 Mutsuo Saito, Makoto Matsumoto, Hiroshima University and The University of Tokyo. All rights reserved.

The 3-clause BSD License is applied to this software, see LICENSE.txt

Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
+University.
+Copyright (c) 2012 Mutsuo Saito, Makoto Matsumoto, Hiroshima University
+and The University of Tokyo.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the names of Hiroshima University, The University of
+      Tokyo nor the names of its contributors may be used to endorse
+      or promote products derived from this software without specific
+      prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+