Parallel Python concurrent development of multi-core parallel programs (Example 2)

#  -*-Coding: UTF-8 -*-  #  -------------------------------------------------------------------------------  #  Name:  #  Purpose:  ##  Author: ankier  ##  Created: 05-02-2013  #  Copyright: (c) ankier 2013  # Licence: <your licence>  #  -------------------------------------------------------------------------------  Import  Math, sys, MD5, time  Import  PP  Def  Md5test (hash, start, end ):  For X In  Xrange (START, end ):  If Md5.new (STR (x). hexdigest () =Hash:  Return  Xppservers = () Job_server = Pp. Server (ppservers = Ppservers)  Print   '  Number of core work processes  ' , Job_server.get_ncpus (), "  Workers  "  Hash = Md5.new ( "  1829182 "  ). Hexdigest ()  Print   "  Hash =  "  , Hashstart_time = Time. Time () rr = Md5test (hash, 1, 2000000 )  Print   '  Time consumed by a single thread  ' , Time. Time ()-start_time, '  S  ' , '  Result =  '  , Rrstart_time = Time. Time () Start = 1 End = 2000000 Parts = 128 Step = (End-Start)/parts + 1 Jobs = []  For Index In  Xrange (parts): starti = Start + Index *Step endi = Min (start + (index + 1 )* Step, end) jobs. append (job_server.submit (md5test, (hash, starti, endi ),(),(  "  MD5  "  ,)))  For Job In  Jobs: Result = Job ()  If  Result:  Break  # Print the results  If  Result:  Print   "  Reverse MD5  " , Hash, "  Is  "  , Result  Else  :  Print   "  Reverse MD5  " , Hash, "  Has not been found  "  Print   "  Time elapsed:  " , Time. Time ()-start_time, "  S  "  Job_server.print_stats () 

Running result:

Current core work process count 4Workershash=48ae4d2d384dcc470e471f4169daa96a time consumed by a single thread3.34699988365 s result = 1829182Reverse MD5For48ae4d2d384dcc470e471f4169daa96aIs1829182Time elapsed:1.55399990082Sjob execution statistics: job count| % Of all jobs | job time sum | time per job |Job Server122 | 100.00/5.4470 | 0.044648 |Localtime elapsed since server Creation4.901999950413 active tasks, 4 Cores