def merge_sort(unsorted):
global app_count
print "sorting %d unsorted files" % (len(unsorted))
# Sort all the individual files
sorted = [sort(f) for f in unsorted]
app_count += len(sorted)
return treereduce(merge, sorted)
# Note: could also code as below:.
# Merge them all hierarchically
"""
def merge_sort(unsorted):
global app_count
print "sorting %d unsorted files" % (len(unsorted))
# Sort all the individual files
sorted = [sort(f) for f in unsorted]
app_count += len(sorted)
return treereduce(merge, sorted)
# Note: could also code as below:.
# Merge them all hierarchically
"""
def testSum(self):
import random
nums, boundnums = red.genlist()
tot = sum(nums)
print "Total of %s is %d" % (repr(nums), tot)
treeres = treereduce(red.add, boundnums).get()
print "treereduce(add, bound).get() = %d" % treeres
dynres = dynreduce(red.add, boundnums).get()
print "dynreduce(add, bound).get() = %d" % dynres
self.assertEqual(treeres, tot)
self.assertEqual(dynres, tot)
def testSum(self):
import random
nums, boundnums = red.genlist()
tot = sum(nums)
print "Total of %s is %d" % (repr(nums), tot)
treeres = treereduce(red.add, boundnums).get()
print "treereduce(add, bound).get() = %d" % treeres
dynres = dynreduce(red.add, boundnums).get()
print "dynreduce(add, bound).get() = %d" % dynres
self.assertEqual(treeres, tot)
self.assertEqual(dynres, tot)
def testAssociative(self):
"""
Test reductions which are associative
"""
import itertools
str = ["aaa", "bb", "c", "dd", "e", "fff"]
bound = map(String, str)
exp = ''.join(str)
@func((String),(String, String))
def concat(a, b):
return a + b
foldres = foldl(concat, String(""), bound).get()
treeres = treereduce(concat, bound).get()
self.assertEquals(exp, foldres)
self.assertEquals(exp, treeres)
def testAssociative(self):
"""
Test reductions which are associative
"""
import itertools
str = ["aaa", "bb", "c", "dd", "e", "fff"]
bound = map(String, str)
exp = ''.join(str)
@func((String), (String, String))
def concat(a, b):
return a + b
foldres = foldl(concat, String(""), bound).get()
treeres = treereduce(concat, bound).get()
self.assertEquals(exp, foldres)
self.assertEquals(exp, treeres)