#include <anneal_mt.h>
See also the unthreaded version of this class in gsl_anneal.
Definition at line 51 of file anneal_mt.h.
Public Member Functions | |
virtual const char * | type () |
Return string denoting type ("anneal_mt"). | |
virtual int | print_iter (size_t nv, vec_t &xx, double y, int iter, double tptr, std::string comment) |
Print out iteration information. | |
Basic usage | |
virtual int | mmin (size_t nv, vec_t &x0, double &fmin, func_t &func, size_t np, param_vec_t &pars) |
Calculate the minimum fmin of func w.r.t the array x0 of size nv using np threads. | |
Iteration control | |
virtual int | next (size_t nv, vec_t &x_old, double min_old, vec_t &x_new, double min_new, double &T, size_t n_moves, bool &finished) |
Determine how to change the minimization for the next iteration. | |
virtual int | start (size_t nv, double &T) |
Setup initial temperature and stepsize. | |
Data Fields | |
rng_t | def_rng |
The default random number generator. | |
Parameters | |
double | boltz |
Boltzmann factor (default 1.0). | |
int | ntrial |
Number of iterations. | |
int | verbose |
Output control. | |
double | tolx |
The independent variable tolerance. | |
Protected Member Functions | |
void | func_wrapper (size_t ip) |
The function wrapper executed by thread with index ip . | |
virtual int | allocate (size_t nv, size_t np) |
Allocate memory for a minimizer over n dimensions with stepsize step . | |
virtual int | free (size_t np) |
Free allocated memory. | |
virtual int | step (vec_t &sx, int nv) |
Make a step to a new attempted minimum. | |
Protected Attributes | |
std::ostream * | outs |
Stream for verbose output. | |
std::istream * | ins |
Stream for verbose input. | |
size_t | nproc |
The number of threads to run. | |
param_vec_t * | params |
The user-specified parameters. | |
size_t | nvar |
The number of variables over which we minimize. | |
func_t * | f |
The function to minimize. | |
alloc_t | ao |
Allocation object. | |
size_t | nstep |
Number of step sizes. | |
double * | step_sizes |
Step sizes. | |
Storage for present, next, and best vectors | |
alloc_vec_t | x |
alloc_vec_t * | new_x |
alloc_vec_t | best_x |
alloc_vec_t | new_E |
alloc_vec_t | old_x |
virtual int print_iter | ( | size_t | nv, | |
vec_t & | xx, | |||
double | y, | |||
int | iter, | |||
double | tptr, | |||
std::string | comment | |||
) | [inline, virtual] |
Print out iteration information.
Depending on the value of the variable verbose, this prints out the iteration information. If verbose=0, then no information is printed, while if verbose>1, then after each iteration, the present values of x and y are output to std::cout along with the iteration number. If verbose>=2 then each iteration waits for a character.
Definition at line 247 of file anneal_mt.h.
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