如何在python中同时(并行)运行多个可执行文件(* .exe)?

时间:2019-10-02 18:16:02

标签: python-2.7 parallel-processing

我需要在*.exe 2.7中并行运行不同的python文件。这些*.exe文件是使用C++语言创建的。另外,我需要为每个调用的*.exe文件打开cmd窗口。

我已经尝试了多处理库,但是没有用。发生任何事情,PC崩溃了...

import os
import subprocess

cwd = os.getcwd()

cmd_MakeBackgroundImage = cwd+"\\MakeBackgroundImage.exe"
cmd_SFVTest = cwd + "\\SFVTest.exe"
cmd_Wavelet_x = cwd + "\\Wavelet_x.exe"
cmd_Dataform_x = cwd + "\\Dataform_x.exe"
cmd_Wavelet_y = cwd + "\\Wavelet_y.exe"
cmd_Dataform_y = cwd + "\\Dataform_y.exe"

process_1 = os.system(cmd_MakeBackgroundImage)

process_2 = os.system(cmd_SFVTest)

#I need to run "cmd_Wavelet_x" at the same time of "cmd_Wavelet_y"
#So I need to parallelize process_3 and process_4
process_3 = os.system(cmd_Wavelet_x)

process_4 = os.system(cmd_Wavelet_y)

#I need to run "cmd_Dataform_x" at the same time of "cmd_Dataform_y"
#So I need to parallelize process_5 and process_6
process_5 = os.system(cmd_Dataform_x)

process_6 = os.system(cmd_Dataform_y)

我对python有一定的了解,而我对Python的并行化一无所知。

  

我描述的代码确实可以满足我的需要,但是顺序执行   办法。我描述的并行化将减少代码   运行时间约1小时。

为每个*.exe打开cmd窗口非常重要,因为这些cmd窗口指示运行代码的状态...

谢谢!

1 个答案:

答案 0 :(得分:1)

更新<\ b>:在Python 2.7中,您可以执行以下操作:

pip install futures

获得并发的所有功能。

仍然使用Python 2.7吗? DoD是2020年。如果您升级到3.2+,则可以轻松使用concurrent.futures并使用几乎相同的代码。

import concurrent.futures
import os

cwd = os.getcwd()

cmd_MakeBackgroundImage = cwd+"\\MakeBackgroundImage.exe"
cmd_SFVTest = cwd + "\\SFVTest.exe"
cmd_Wavelet_x = cwd + "\\Wavelet_x.exe"
cmd_Dataform_x = cwd + "\\Dataform_x.exe"
cmd_Wavelet_y = cwd + "\\Wavelet_y.exe"
cmd_Dataform_y = cwd + "\\Dataform_y.exe"

# add cmds to be ran concurrently
programs = [cmd_SFVTest, cmd_Wavelet_x, cmd_Dataform_x, cmd_Wavelet_y, cmd_Dataform_y]

# you can use either Process or Thread depends on your needs

with concurrent.futures.ProcessPoolExecutor() as executor:
    executor.map(os.system, programs)

希望这会有所帮助