libsc 2.8.5.210-64a7
The SC library provides support for parallel scientific applications.
sc_random.h
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1/*
2 This file is part of the SC Library.
3 The SC Library provides support for parallel scientific applications.
4
5 Copyright (C) 2010 The University of Texas System
6 Additional copyright (C) 2011 individual authors
7
8 The SC Library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
12
13 The SC Library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public
19 License along with the SC Library; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 02110-1301, USA.
22*/
23
24#ifndef SC_RANDOM_H
25#define SC_RANDOM_H
26
31#include <sc.h>
32
36typedef uint64_t sc_rand_state_t;
37
42double sc_rand (sc_rand_state_t * state);
43
54 double *second_result);
55
61int sc_rand_small (sc_rand_state_t * state, double d);
62
68int sc_rand_poisson (sc_rand_state_t * state, double mean);
69
70#endif /* !SC_RANDOM_H */
Support for process management (memory allocation, logging, etc.)
int sc_rand_small(sc_rand_state_t *state, double d)
Randomly draw either 0 or 1 where the probability for 1 is small.
double sc_rand_normal(sc_rand_state_t *state, double *second_result)
Sample the Gauss standard normal distribution.
uint64_t sc_rand_state_t
The internal state of sc_rand and derived functions.
Definition: sc_random.h:36
double sc_rand(sc_rand_state_t *state)
Draw a (pseudo-)random variable uniformly distributed in [0, 1).
int sc_rand_poisson(sc_rand_state_t *state, double mean)
Draw from a random variable following the Poisson distribution.