python中threading和queue库实现多线程编程

 # -*- coding: utf-8 -*- # @Time : 2021/2/4 14:36 # @Author : CyrusMay WJ # @FileName: run.py # @Software: PyCharm # @Blog ：https://blog.csdn.net/Cyrus_May import queue import threading class CyrusThread(object): def __init__(self,num_thread = 10,logger=None): """ :param num_thread: 线程数 :param logger: 日志对象 """ self.num_thread = num_thread self.logger = logger def object_func(self,args_queue,max_q): while 1: try: arg = args_queue.get_nowait() step = args_queue.qsize() self.logger.info("progress:{}\{}".format(max_q,step)) except: self.logger.info("no more arg for args_queue!") break """ 此处加入自己的业务逻辑代码 """ def run(self,args): args_queue = queue.Queue() for value in args: args_queue.put(value) threads = [] for i in range(self.num_thread): threads.append(threading.Thread(target=self.object_func,args = args_queue)) for t in threads: t.start() for t in threads: t.join()

 # -*- coding: utf-8 -*- # @Time : 2021/2/4 14:36 # @Author : CyrusMay WJ # @FileName: run.py # @Software: PyCharm # @Blog ：https://blog.csdn.net/Cyrus_May import queue import threading import numpy as np from sklearn.datasets import load_boston from sklearn.svm import SVR import logging import sys class CyrusThread(object): def __init__(self,num_thread = 10,logger=None): """ :param num_thread: 线程数 :param logger: 日志对象 """ self.num_thread = num_thread self.logger = logger def object_func(self,args_queue,max_q): while 1: try: arg = args_queue.get_nowait() step = args_queue.qsize() self.logger.info("progress:{}\{}".format(max_q,max_q-step)) except: self.logger.info("no more arg for args_queue!") break # 业务代码 C, epsilon, gamma = arg[0], arg[1], arg[2] svr_model = SVR(C=C, epsilon=epsilon, gamma=gamma) x, y = load_boston()["data"], load_boston()["target"] svr_model.fit(x, y) self.logger.info("score:{}".format(svr_model.score(x,y))) def run(self,args): args_queue = queue.Queue() max_q = 0 for value in args: args_queue.put(value) max_q += 1 threads = [] for i in range(self.num_thread): threads.append(threading.Thread(target=self.object_func,args = (args_queue,max_q))) for t in threads: t.start() for t in threads: t.join() # 创建日志对象 logger = logging.getLogger() logger.setLevel(logging.INFO) screen_handler = logging.StreamHandler(sys.stdout) screen_handler.setLevel(logging.INFO) formatter = logging.Formatter('%(asctime)s - %(module)s.%(funcName)s:%(lineno)d - %(levelname)s - %(message)s') screen_handler.setFormatter(formatter) logger.addHandler(screen_handler) # 创建需要调整参数的集合 args = [] for C in [i for i in np.arange(0.01,1,0.01)]: for epsilon in [i for i in np.arange(0.001,1,0.01)] + [i for i in range(1,10,1)]: for gamma in [i for i in np.arange(0.001,1,0.01)] + [i for i in range(1,10,1)]: args.append([C,epsilon,gamma]) # 创建多线程工具 threading_tool = CyrusThread(num_thread=20,logger=logger) threading_tool.run(args)