simplex
Use a minimal simplex for the search pattern
Specification
Alias: None
Arguments: None
Description
If pattern_basis
is simplex
, then pattern search uses a minimal
positive basis simplex for the parameter space, for a total of n+1
function evaluations in the pattern. Note that the simplex
pattern
basis can be used for unbounded problems only. The
total_pattern_size
specification can be used to augment the basic
coordinate
and simplex
patterns with additional function
evaluations, and is particularly useful for parallel load balancing.
For example, if some function evaluations in the pattern are dropped
due to duplication or bound constraint interaction, then the
total_pattern_size
specification instructs the algorithm to generate
new offsets to bring the total number of evaluations up to this
consistent total.