A simulated annealing search, with all parameters varied at each step.
simul-ann-2 [nloop] [tchn] [nsamp] [iseed] [tiny]
The SIMUL-ANN-2 method is a simulated annealing method,
analogous to SIMUL-ANN-1 in every way except that at each
randomization, all the parameters are varied, not just one.
Note that the default temperature cycle change factor, and the number
of temperature cycles, correspond to more and faster changes of
temperature than SIMUL-ANN-1.
This is because of the increased mobility within parameter space,
since all values are changed with each randomization.
| nloop |
integer |
1024 |
64 |
16384 |
| tchn |
real |
0.95 |
0.1 |
0.9999 |
| nsamp |
integer |
512 |
32 |
8192 |
| iseed |
integer |
14391 |
-1.e+20 |
1.e+20 |
| tiny |
real |
1.e-12 |
1.e-20 |
1.e-6 |
Parameter=nloop (integer default=1024 min=64 max=16384)
Maximum number of temperatures.
Parameter=tchn (real default=0.95 min=0.1 max=0.9999)
Factor for temperature reduction.
Parameter=nsamp (integer default=512 min=32 max=8192)
Number of movements at each temperature.
Parameter=iseed (integer default=14391 min=-1.e+20 max=1.e+20)
Seed for random number generator.
Parameter=tiny (real default=1.e-12 min=1.e-20 max=1.e-6)
Smallest temperature allowed.
- sherpa
-
get_method_expr,
grid,
grid-powell,
levenberg-marquardt,
method,
monte-lm,
monte-powell,
montecarlo,
powell,
sigma-rejection,
simplex,
simul-ann-1,
simul-pow-1,
simul-pow-2,
usermethod
|
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