master/neural_modelling/rng_8h_source.html

 /*

  * Copyright (c) 2017 The University of Manchester

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *     https://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */


 #ifndef __RNG_H__

 #define __RNG_H__


 #include <common-typedefs.h>

 #include <random.h>


 typedef struct rng {

     mars_kiss64_seed_t seed;

 } rng_t;


 rng_t *rng_init(void **region);


 uint32_t rng_generator(rng_t *rng);


 accum rng_exponential(rng_t *rng);


 accum rng_normal(rng_t *rng);


 void rng_free(rng_t *rng);


 extern rng_t *population_rng;


 extern rng_t *core_rng;


 #endif

seed
static mars_kiss64_seed_t seed
YUCK copy and pasted RNG to allow inlining and also to avoid horrific executable bloat.
Definition: random_util.h:31

rng_exponential
accum rng_exponential(rng_t *rng)
Generate an exponentially-distributed random number.
Definition: rng.c:30

rng_normal
accum rng_normal(rng_t *rng)
Generate an normally-distributed random number.
Definition: rng.c:34

core_rng
rng_t * core_rng
An RNG that is local to the current core.
Definition: neuron_expander.c:152

rng_init
rng_t * rng_init(void **region)
Initialise the random number generator.

rng_free
void rng_free(rng_t *rng)
Finish with a random number generator.

population_rng
rng_t * population_rng
An RNG that starts in the same place on every core of the Population.
Definition: neuron_expander.c:151

rng_generator
uint32_t rng_generator(rng_t *rng)
Generate a uniformly-distributed random number.
Definition: rng.c:26

rng_t
The Random number generator parameters.
Definition: rng.h:30

region
region
spike source array region IDs in human readable form
Definition: spike_source_poisson.c:81

rng
static uint32_t rng(void)
Random number generation for the Poisson sources. This is a local version for speed of operation.
Definition: spike_source_poisson.c:265