partest.py

   1 # partest.py
   2 # 21 June 2007
   3
   4 from position import *
   5 from search import *
   6 import sys, thread, time, os
   7
   8 try:
   9     fen = sys.argv[1]
  10     pos = position(fen)
  11 except:
  12     pos = ipos
  13
  14 def removePV(res):
  15     x = res.copy()
  16     del x['pv']
  17     return x
  18
  19 def main(Max = 32):
  20     for d in range(Max):
  21         print "\nDepth %s:" % d
  22         if 'CLEAR' in os.environ:
  23             pvCache.clear()
  24         if 'PARALLEL' in os.environ:
  25             splits = 1
  26         else:
  27             splits = 0
  28         x = alphaBeta(pos, d, top = True, splits = splits)
  29         print "    ", removePV(x)
  30         print "  ", algebraicForPV(x['pv'])
  31
  32 def main2(Max = 32):
  33     global pvCache
  34     otherPVCache = {}
  35     times = [1, 1]
  36
  37     for d in range(Max):
  38         print "\nDepth %s:" % d
  39         for splits in (0, 1):
  40             x = alphaBeta(pos, d, top = True, splits = splits)
  41             print ["no split", "one split"][splits]
  42             print "    ", removePV(x)
  43             print "  ", algebraicForPV(x['pv'])
  44
  45             times[splits] = x['time']
  46             pvCache, otherPVCache = otherPVCache, pvCache
  47         speedup = float(times[0]) / times[1]
  48         print "Speed-up: %.2fx   (ratio: %.1f%%)" % (speedup, 100.0 /
  49 speedup)
  50
  51 if __name__ == '__main__':
  52     thread.start_new_thread(main2, ())
  53     while 1:
  54         time.sleep(1000)