Class: BOAST::GeneticOptimizer

Inherits:
Optimizer show all
Defined in:
lib/BOAST/Optimization/Optimization.rb

Instance Attribute Summary

Attributes inherited from Optimizer

#experiments, #log, #search_space

Instance Method Summary collapse

Methods included from PrivateStateAccessor

#address_size, #address_size=, #annotate, #annotate=, #annotate?, #annotate_indepth_list, #annotate_indepth_list=, #annotate_level, #annotate_level=, #annotate_list, #annotate_list=, #architecture, #architecture=, #array_start, #array_start=, #chain_code, #chain_code=, #chain_code?, #debug, #debug=, #debug?, #debug_source, #debug_source=, #debug_source?, #decl_module, #decl_module=, #decl_module?, #default_align, #default_align=, #default_int_signed, #default_int_signed=, #default_int_signed?, #default_int_size, #default_int_size=, #default_real_size, #default_real_size=, #disable_openmp, #disable_openmp=, #disable_openmp?, #ffi, #ffi=, #ffi?, #fortran_line_length, #fortran_line_length=, #get_address_size, #get_annotate, #get_annotate_indepth_list, #get_annotate_level, #get_annotate_list, #get_architecture, #get_array_start, #get_chain_code, #get_debug, #get_debug_source, #get_decl_module, #get_default_align, #get_default_int_signed, #get_default_int_size, #get_default_real_size, #get_disable_openmp, #get_ffi, #get_fortran_line_length, #get_indent_increment, #get_indent_level, #get_keep_temp, #get_lang, #get_model, #get_optimizer_log, #get_optimizer_log_file, #get_output, #get_replace_constants, #get_use_vla, #get_verbose, #indent_increment, #indent_increment=, #indent_level, #indent_level=, #keep_temp, #keep_temp=, #keep_temp?, #lang, #lang=, #model, #model=, #optimizer_log, #optimizer_log=, #optimizer_log?, #optimizer_log_file, #optimizer_log_file=, #output, #output=, #replace_constants, #replace_constants=, #replace_constants?, #set_address_size, #set_annotate, #set_annotate_indepth_list, #set_annotate_level, #set_annotate_list, #set_architecture, #set_array_start, #set_chain_code, #set_debug, #set_debug_source, #set_decl_module, #set_default_align, #set_default_int_signed, #set_default_int_size, #set_default_real_size, #set_disable_openmp, #set_ffi, #set_fortran_line_length, #set_indent_increment, #set_indent_level, #set_keep_temp, #set_lang, #set_model, #set_optimizer_log, #set_optimizer_log_file, #set_output, #set_replace_constants, #set_use_vla, #set_verbose, #use_vla, #use_vla=, #use_vla?, #verbose, #verbose=, #verbose?

Constructor Details

#initialize(search_space, options = {}) ⇒ GeneticOptimizer 



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# File 'lib/BOAST/Optimization/Optimization.rb', line 60

def initialize(search_space, options = {} )
  super
  require 'darwinning'
  s = "  @organism = Class::new(Darwinning::Organism) do\n    @@block = nil\n    def self.block\n      return @@block\n    end\n    def self.block=(block)\n      @@block = block\n    end\n    @@experiments = 0\n    def self.experiments\n      return @@experiments\n    end\n    def self.experiments=(experiments)\n      @@experiments = experiments\n    end\n"
  @search_space.parameters.each { |param|
  s += "    @genes.push( Darwinning::Gene.new(name: \#{param.name.inspect}, value_range: \#{param.values.inspect}) )\n"
  }
  s += "    def initialize(*args)\n      super\n    end\n\n    def fitness\n      return @fitness if @fitness\n      opts = {}\n      genes.each { |gene|\n        opts[gene.name] = genotypes[gene]\n      }\n      @fitness = @@block.call(opts)\n      @@experiments = @@experiments + 1\n      return fitness\n    end\n\n    def to_a\n      opts = {}\n      genes.each { |gene|\n        opts[gene.name] = genotypes[gene]\n      }\n      return [opts, fitness]\n    end\n\n    def to_s\n      return [opts, fitness].to_s\n    end\n\n  end\n"
  eval s
end

Instance Method Details

#optimize(options = {}, &block) ⇒ Object 



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# File 'lib/BOAST/Optimization/Optimization.rb', line 118

def optimize(options={}, &block)
  opts = { :population_size => 20,
           :fitness_goal => 0,
           :generations_limit => 100 }
  opts.update(options)
  opts[:organism] = @organism
  @organism.block = block
  @organism.experiments = 0
  population = Darwinning::Population.new(opts)
  population.evolve!
  @experiments = @organism.experiments
  return population.best_member.to_a
end