set no_result 1

proc CheckPerform {path} {
  puts ""
  puts "model: $path"
  restore $path c
  dchrono s reset; dchrono s start;
  set cres [checkshape c]
  dchrono s stop;
  regexp {Elapsed time: +([-0-9.+eE]+) Hours +([-0-9.+eE]+) Minutes +([-0-9.+eE]+) Seconds} [dchrono s show] full s_Hours s_Minutes s_Seconds
  set s_Time [expr ${s_Hours}*60.*60. + ${s_Minutes}*60. + ${s_Seconds} ]
  puts "single-threaded time: $s_Time"  
  dchrono p reset; dchrono p start;
  set pres [checkshape c -parallel]
  dchrono p stop;
  regexp {Elapsed time: +([-0-9.+eE]+) Hours +([-0-9.+eE]+) Minutes +([-0-9.+eE]+) Seconds} [dchrono p show] full p_Hours p_Minutes p_Seconds
  set p_Time [expr ${p_Hours}*60.*60. + ${p_Minutes}*60. + ${p_Seconds} ]
  puts "multithreaded time: $p_Time"  
  set ratio [expr ${s_Time}/${p_Time} ]
  puts "acceleration in multi-threaded work: $ratio" 
    if {[string compare $cres $pres] != 0} {
    puts "Error: different result between single-thread and parallel on $path"
  }
}