Verbesserung der Parameterübergabe und Berechnung aus Zahlenliste.

teil12/pool_squares.py

@@ -14,38 +14,48 @@ def print_verbose(s):
   if __verbose__:
     print(s)
 
-def calc_square(x, *args,**kwargs):
+def calc_sum_square(zahlen, *args,**kwargs):
   start = kwargs['start']
   ende =  kwargs['end']
   threadnr = kwargs['threadnr']
   summe  = 0
 
-  print_verbose(f'args={args}')
+#  print_verbose(f'x={x}')
-  time.sleep(1.0)
+#  time.sleep(1.0)
-  print_verbose(f'kwargs={kwargs}')
+#  print_verbose(f'kwargs={kwargs}')
   print_verbose(f'von {start} bis {ende}')
   for n in range(start,ende):
-    print_verbose(f'Berechnung:{threadnr}: {n}, {n*n}')
+    i = zahlen[n]
-    summe = summe + n*n
+    print_verbose(f'Berechnung:{threadnr}: {i}, {i*i}')
+    summe = summe + i*i
 
   return summe
 
 def smap(f, *arg):
   args, kwargs = arg
+  
+#  print(f'smap() args= {args}')
+  time.sleep(1.0)
+#  print(f'smap() kwargs={kwargs}')
+  time.sleep(1.0)
   return f(list(args), **kwargs)
 
 
 if __name__ == '__main__':
 
 
+  start = timer()
   zahlen = [i for i in range(10000000)]
+  ende = timer()
+  print(f'Zahlenliste erzeugt in {ende-start}s')
+
   split = int(len(zahlen) / 3)
   print(f'split={split}')
   time.sleep(1.0)
 
   start = timer()
   with Pool(processes=3) as pool:
-    result = pool.starmap(smap, [(calc_square, zahlen, {'threadnr':1,'start':0, 'end':split}), (calc_square, zahlen, {'threadnr':2,'start':split+1,'end':split*2}), (calc_square, zahlen,{'threadnr':3,'start':(split*2)+1,'end':split*3})])
+    result = pool.starmap(smap, [(calc_sum_square, zahlen, {'threadnr':1,'start':0, 'end':split}), (calc_sum_square, zahlen, {'threadnr':2,'start':split+1,'end':split*2}), (calc_sum_square, zahlen,{'threadnr':3,'start':(split*2)+1,'end':split*3})])
     print(f'Ergebnis: {result}')
   ende = timer()
   print(f'Ausführzeit: {ende-start}s')