#include <sim_anneal.h>
The seed of the generator is not fixed initially by calls to mmin(), so if successive calls should reproduce the same results, then the random seed should be set by the user before each call.
For the algorithms here, it is important that all of the inputs x[i] to the function are scaled similarly relative to the temperature. For example, if the inputs x[i] are all of order 1, one might consider a temperature schedule which begins with .
The number of iterations at each temperature is controlled by minimize::ntrial which defaults to 100.
Definition at line 58 of file sim_anneal.h.
Public Member Functions | |
sim_anneal () | |
virtual | ~sim_anneal () |
virtual int | mmin (size_t nvar, vec_t &x, double &fmin, param_t &pa, func_t &func) |
Calculate the minimum fmin of func w.r.t the array x of size nvar . | |
int | set_tptr_schedule (tptr_schedule< vec_t > &tr) |
Specify the temperature schedule. | |
virtual int | print_iter (size_t nv, vec_t &x, double y, int iter, double tptr, std::string comment) |
Print out iteration information. | |
virtual const char * | type () |
Return string denoting type, "sim_anneal" . | |
Data Fields | |
rng_t | def_rng |
The default random number generator. | |
tptr_geoseries< vec_t > | def_schedule |
The default temperature schedule. | |
Protected Attributes | |
tptr_schedule< vec_t > * | tp |
Pointer to the temperature annealing schedule. |
virtual int print_iter | ( | size_t | nv, | |
vec_t & | x, | |||
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 103 of file sim_anneal.h.
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