require 'optparse'
require 'pry'
params = ARGV.getopts('', 'path:', 'length:1024', 'split:8', 'gpu', 'logDirPath:.')

cpus = (0..4).map {|i| 2**i }
Dir.chdir(params['logDirPath'])

unless params['path']
  puts 'Usage: ruby benchmark.rb --path gears_example_binary_path [options]'
  puts '  --length length      array length [default: 1024]'
  puts '  --split split        array split num [default: 8]'
  puts '  --logDirPath logdir  log directory [default: current directory]'
  puts '  --gpu                run gpu'
  puts '  -h                   show help'
  exit(1)
end

file = File.new("cpu_result", 'w')
cpus.each do |i|
  result = `#{params['path']} -cpu #{i} -l #{params['length']} -s #{params['split']}`
  file.write(result)
end
file.close

exit(0) unless params['gpu']

file = File.new("gpu_result", 'w')
result = `#{params['path']} -cpu #{i} -l #{params['length']} -s #{params['split']}`
file.write(result)
file.close