Parallel processing IPython并行：未找到ipcluster和ipcontroller-client.json

我试图按照使用

ipyparallel

的说明来加速Jupyter笔记本中的一些Python脚本。当做

将IPY并行导入为ipp
IPPC=ipp.Client（）

我得到以下错误：

Using matplotlib backend: TkAgg

Waiting for connection file: ~/.ipython/profile_default/security/ipcontroller-client.json

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
<ipython-input-11-bf8e572b63bc> in <module>()
     18 display(HTML("<style>.container {width:100% !important;}</style>"))
     19 
---> 20 IPPC = ipp.Client()
     21 
     22 

/home/guest/.local/lib/python3.7/site-packages/ipyparallel/client/client.py in __init__(self, url_file, profile, profile_dir, ipython_dir, context, debug, sshserver, sshkey, password, paramiko, timeout, cluster_id, **extra_args)
    415                         no_file_msg,
    416                     ])
--> 417                     raise IOError(msg)
    418         if url_file is None:
    419             raise IOError(no_file_msg)

OSError: Connection file '~/.ipython/profile_default/security/ipcontroller-client.json' not found.
You have attempted to connect to an IPython Cluster but no Controller could be found.
Please double-check your configuration and ensure that a cluster is running.

Jupyter笔记本中的“群集”选项卡为空：

但是，

ipyparallel

肯定已安装：

user@laptop:~$ pip3 install ipyparallel
Requirement already satisfied: ipyparallel in ./.local/lib/python3.7/site-packages (6.3.0)
Requirement already satisfied: jupyter-client in /usr/lib/python3/dist-packages (from ipyparallel) (5.2.3)
Requirement already satisfied: traitlets>=4.3 in /usr/lib/python3/dist-packages (from ipyparallel) (4.3.2)
Requirement already satisfied: tornado>=4 in /usr/lib/python3/dist-packages (from ipyparallel) (5.1.1)
Requirement already satisfied: pyzmq>=13 in /usr/lib/python3/dist-packages (from ipyparallel) (17.1.2)
Requirement already satisfied: ipykernel>=4.4 in /usr/lib/python3/dist-packages (from ipyparallel) (4.9.0)
Requirement already satisfied: ipython-genutils in /usr/lib/python3/dist-packages (from ipyparallel) (0.2.0)
Requirement already satisfied: decorator in /usr/lib/python3/dist-packages (from ipyparallel) (4.3.0)
Requirement already satisfied: ipython>=4 in /usr/lib/python3/dist-packages (from ipyparallel) (5.8.0)
Requirement already satisfied: python-dateutil>=2.1 in /usr/lib/python3/dist-packages (from ipyparallel) (2.7.3)
Requirement already satisfied: pexpect in /usr/lib/python3/dist-packages (from ipython>=4->ipyparallel) (4.6.0)

在

/home/user/.local/bin

中有三个文件

ipcluster

、

ipcontroller

和

ipengine

，它们都是Python脚本

…有什么问题吗

user@laptop:~$ pip3 install ipyparallel
Requirement already satisfied: ipyparallel in ./.local/lib/python3.7/site-packages (6.3.0)
Requirement already satisfied: jupyter-client in /usr/lib/python3/dist-packages (from ipyparallel) (5.2.3)
Requirement already satisfied: traitlets>=4.3 in /usr/lib/python3/dist-packages (from ipyparallel) (4.3.2)
Requirement already satisfied: tornado>=4 in /usr/lib/python3/dist-packages (from ipyparallel) (5.1.1)
Requirement already satisfied: pyzmq>=13 in /usr/lib/python3/dist-packages (from ipyparallel) (17.1.2)
Requirement already satisfied: ipykernel>=4.4 in /usr/lib/python3/dist-packages (from ipyparallel) (4.9.0)
Requirement already satisfied: ipython-genutils in /usr/lib/python3/dist-packages (from ipyparallel) (0.2.0)
Requirement already satisfied: decorator in /usr/lib/python3/dist-packages (from ipyparallel) (4.3.0)
Requirement already satisfied: ipython>=4 in /usr/lib/python3/dist-packages (from ipyparallel) (5.8.0)
Requirement already satisfied: python-dateutil>=2.1 in /usr/lib/python3/dist-packages (from ipyparallel) (2.7.3)
Requirement already satisfied: pexpect in /usr/lib/python3/dist-packages (from ipython>=4->ipyparallel) (4.6.0)