seed
Seed of the random number generator
Specification
Alias: None
Arguments: INTEGER
Default: system-generated (non-repeatable)
Description
The random seed
control provides a mechanism for making a
stochastic method repeatable. That is, the use of the same random seed
in identical studies will generate identical results.
Default Behavior
If not specified, the seed is randomly generated.
Expected Output
If seed
is specified, a stochastic study will generate identical
results when repeated using the same seed value. Otherwise, results
are not guaranteed to be the same.
Usage Tips
If a stochastic study was run without seed
specified, and the user
later wishes to repeat the study using the same seed, the value of the
seed used in the original study can be found in the output Dakota
prints to the screen. That value can then be added to the Dakota
input file.
Examples
method
sampling
sample_type lhs
samples = 10
seed = 15347