Class: Experiment::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/experiment/runner.rb

Overview

This is the class behind the command line magic. It is possible to use it programatically, though.

Examples:

For documentation on the CLI run

experiment -h

See Also:

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(arg, opt) ⇒ Runner

If you are using this programmatically you need to set these params correctly:

Parameters:

  • arg (Array<String>) —

    Typically the name of the experiment the operation needs to operate on.

  • opt (Struct, OpenStruct) —

    an options object that should respond according to the CLI.



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# File 'lib/experiment/runner.rb', line 18

def initialize(arg, opt)
  @arguments, @options = arg, opt
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/experiment/runner.rb', line 11

def options
  @options
end

Instance Method Details

#console ⇒ Object

Creates an IRB console useful for debugging experiments Loads up the environment for the condition passed



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# File 'lib/experiment/runner.rb', line 154

def console
cla = as_class_name(@arguments.first)	if @arguments.length == 1
 File.open("./tmp/irb-setup.rb", 'w') do |f|
   f.puts "# Initializes the environment for IRb."
   f.puts "Experiment::Config::init #{@options.env.inspect}"
   f.puts "$: << '#{File.expand_path(".")}/'"
   if @arguments.length == 1
     f.puts "require 'experiments/#{@arguments.first}/#{@arguments.first}'"
     f.puts "def experiment"
	    f.puts "  @experiment ||= #{cla}.new :normal, #{@arguments.first.inspect}, OpenStruct.new(#{@options.marshal_dump})"
	    f.puts "end"
	    f.puts "experiment #load up the configs"
	  else
	    f.puts 'Dir["./app/**/*.{rb,o,so,dll,bundle}"].each{|e| require e.gsub(/\.(rb|so|o|dll|bundle)$/, "") }'
	    f.puts "Experiment::Config::load '', #{options.opts.inspect}"
   end
   
 end
   irb = RUBY_PLATFORM =~ /(:?mswin|mingw)/ ? 'irb.bat' : 'irb'
   libs =  " -r irb/completion"
   libs <<  " -r #{File.dirname(__FILE__) + "/base"}"
   libs << " -r./experiments/experiment"
   libs << " -r ./tmp/irb-setup.rb"
   puts "Loading #{@options.env} environment..."
   exec "#{irb} #{libs} --simple-prompt"
end

#generate ⇒ Object

Generates a new experiment condition Usage of the -m flag for writing a hypothesis is recommended



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# File 'lib/experiment/runner.rb', line 25

def generate
dir = "./experiments/" + @arguments.first
			Dir.mkdir(dir)
			File.open(dir + "/" + @arguments.first + ".rb", "w") do |req_file|
 req_file.puts "# ## #{as_human_name @arguments.first} ##"
 req_file.puts "# "+@options.description.split("\n").join("\n# ")
 req_file.puts
 req_file.puts
 req_file.puts "# The first contious block of comment will be included in your report."
 req_file.puts "# This includes the reference implementation."
 req_file.puts "# Override any desired files in this directory."
 Dir["./app/**/*.{rb,o,dll,so,bundle}"].each do |f|
   next if File.basename(f) == 'extconfig.rb'
   p = File.expand_path(f).split("/") - File.expand_path(".").split("/")
   req_file.puts "require \"#{p.join("/").gsub(/\.(rb|o|dll|so|bundle)$/, "")}\""
 end
 req_file.puts "\nclass #{as_class_name @arguments.first} < MyExperiment\n\t\nend"
			end
			File.open(dir + "/config.yaml", "w") do |f|
 f << "---\nexperiment:\n  development:\n  compute:\n"
  end
end

#list ⇒ Object

Lists available experiments



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# File 'lib/experiment/runner.rb', line 69

def list
  puts "Available experiments:"
  puts "  " + Dir["./experiments/*"].map{|a| File.dirname(a) }.join(", ")
end

#new_project ⇒ Object

generate a new project in the current directory



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# File 'lib/experiment/runner.rb', line 49

def new_project 
  require 'fileutils'
  dir = "./" + @arguments.first
  Dir.mkdir(dir)
  %w[app config experiments report results test tmp vendor].each do |d|
    Dir.mkdir(dir + "/" + d)
  end
  basedir = File.dirname(__FILE__)
  File.open(File.join(dir, "config", "config.yaml"), "w") do |f|
    f << "---\nenvironments:\n  development:\n  compute:\n"
  end
  File.open(File.join(dir, ".gitignore"), "w") do |f|
    f << "tmp/*"
  end
  FileUtils::cp File.join(basedir, "generator/readme_template.txt"), File.join(dir, "README")
  FileUtils::cp File.join(basedir, "generator/Rakefile"), File.join(dir, "Rakefile")
  FileUtils::cp File.join(basedir, "generator/experiment_template.rb.txt"), File.join(dir, "experiments", "experiment.rb")
end

#report ⇒ Object

Generates 2 files in the report directory method.mmd which sums up comments from experimental conditions data.csv which sums all results in a table



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# File 'lib/experiment/runner.rb', line 77

def report
  dir = "./report/"
    File.open(dir + "method.mmd", "w") do |f|
      f.puts "# Methods #"
      Dir["./experiments/*/*.rb"].each do |desc|
        if File.basename(desc) == File.basename(File.dirname(desc)) + ".rb"
          File.read(desc).split("\n").each do |line|
            if m = line.match(/^\# (.+)/)
              f.puts m[1]
            else
              break
            end
          end
        f.puts
        f.puts
        end
      end
    end
    require 'csv'
    require "yaml"
    require File.dirname(__FILE__) + "/stats"
    CSV.open(dir + "/data.csv", "w") do |csv|
      data = {}
      Dir["./results/*/results.yaml"].each do |res|
        d = YAML::load_file(res)
        da = {}
        d.each do |k, vals|
          da[k.to_s + " mean"], da[k.to_s + " sd"] = Stats::mean(vals), Stats::standard_deviation(vals)
          vals.each_with_index do |v, i|
            da[k.to_s + " cv:" + i.to_s] = v
          end
        end
        array_merge(data, da)
      end
      data.keys.map do |key| 
  		  # calculate stats
  		  a = data[key]
  		  [key] + a
		  end.transpose.each do |row|
		    csv << row
		  end
    end

end

#run ⇒ Object

runs experiments passed as arguments use the -o option to override configuration



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# File 'lib/experiment/runner.rb', line 125

def run
  require File.dirname(__FILE__) + "/base"

  require "./experiments/experiment"
  $: << "./"
    Experiment::Config::init @options.env
  @options.cv = Experiment::Config.get :cross_validations, 5 if @options.cv.nil?
  if @options.distributed
    require "drb/drb"
    require File.dirname(__FILE__) + "/work_server"
    puts "Running in distributed mode. Run other machines with:\nexperiment worker --address #{local_ip}\n"
    Notify::init @arguments.length * @options.cv, STDOUT, Experiment::Config::get(:growl_notifications, true)
    ws = WorkServer.new @arguments, @options, local_ip
    Notify::done
    return true
	  else
	    Notify::init @arguments.length * @options.cv, @options.quiet ? false : STDERR, Experiment::Config::get(:growl_notifications, !@options.quiet)
	  @arguments.each do |exp|
			  require "./experiments/#{exp}/#{exp}"
			  cla = eval(as_class_name(exp))
				experiment = cla.new :normal, exp, @options
				experiment.normal_run! @options.cv
			end
	  Notify::done
  end
end

#worker ⇒ Object

Starts a Worker implementation. It requires an –address option of it’s master server and will recieve tasks (experiments and cross-validations) and compute them.



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# File 'lib/experiment/runner.rb', line 185

def worker
 require "drb/drb"
 require File.dirname(__FILE__) + "/base"
 Experiment::Config::init @options.env
 loop do
   @server_uri="druby://#{@options.master}:8787"
	  connect
	  Notify::init 0, STDOUT, false, @master
     while item = @master.new_item
       #puts item
       exp = @master.experiment item
       require "./experiments/experiment"
       require "./experiments/#{exp}/#{exp}"
		  cla = eval(as_class_name(exp))
			experiment = cla.new :slave, exp, @options
		  experiment.master = @master.instance item
		  experiment.slave_run!
     end
   end
end