我试图从输入文件中读取数据,并在while循环中为每一行执行一项任务。问题是,当我创建第一个进程时-它的循环正在执行,并且没有将控制权返回给上述for循环。底线没有并行性。我究竟做错了什么?
以下是相关代码:
from multiprocessing import Process
def work_line(list1Line,jobId):
while True:
print list1Line
tenant = list1Line[0]
module = list1Line[1]
endTime = int(time.time())
startTime = endTime - startTimeDelta
generate(jobId, startTime, endTime, tenantServiceAddress, tenant, module)
print ("tenant {} will sleep for {} seconds").format(tenant,sleepBetweenLoops)
time.sleep(sleepBetweenLoops)
def openFiles():
file = open(CLOUD_INPUT_FILE, 'r')
lines = file.readlines()
file.close()
linesLen = len(lines)
processes = []
for linesIndex in range(0, linesLen):
jobId = GenerateRandomID()
line = lines[linesIndex]
list1Line = line.split()
p = Process(target=work_line(list1Line,jobId))
p.start()
processes.append(p)
print processes
for p in processes:
p.join()
if __name__ == '__main__':
CLOUD_INPUT_FILE = r'C:\CF\input_file.txt'
tenantServiceAddress = 'address.address'
startTimeDelta = 300
sleepBetweenLoops = 1800
print multiprocessing.cpu_count()
openFiles()
最佳答案
您实际上是在调用该函数。改成
p = Process(target=work_line, args=(list1Line,jobId))