Hello_World 没有在 Cluster:II 上使用 mpi4py

Question

再次尝试在本地集群上学习 mpi4py。因此，我编写了一个 hello_world 程序，但它不会运行！我附上了 .py 代码和错误。有人可以指出我做错了什么吗？提前致谢。

你好世界：

from mpi4py import MPI
comm=MPI.COMM_WORLD
print("Hello, World! My rank is: " + str(comm.rank))

错误信息：

Traceback (most recent call last):
 File "./MPI_Hello_World.py", line 1, in <module>
 from mpi4py import MPI

ImportError: libmpich.so.3: cannot open shared object file: No such file or directory
Traceback (most recent call last):
File "./MPI_Hello_World.py", line 1, in <module>
from mpi4py import MPI


ImportError: libmpich.so.3: cannot open shared object file: No such file or directory
Traceback (most recent call last):
File "./MPI_Hello_World.py", line 1, in <module>
from mpi4py import MPI

ImportError: libmpich.so.3: cannot open shared object file: No such file or directory
Traceback (most recent call last):
File "./MPI_Hello_World.py", line 1, in <module>
from mpi4py import MPI

ImportError: libmpich.so.3: cannot open shared object file: No such file or directory
Traceback (most recent call last):
File "./MPI_Hello_World.py", line 1, in <module>
from mpi4py import MPI

ImportError: libmpich.so.3: cannot open shared object file: No such file or directory
Traceback (most recent call last):
File "./MPI_Hello_World.py", line 1, in <module>
from mpi4py import MPI

ImportError: libmpich.so.3: cannot open shared object file: No such file or directory

See here for the part-I of the question.

Answer 1

我对 MPI4PY 完全不熟悉，但它看起来需要单独的 MPI 安装，而不是自己提供。您是否尝试过安装一个（MPICH、Open MPI 等）？在大多数 Linux 系统上，这就像快速安装一样简单

apt-get install mpich

或者任何你喜欢的包管理器。如果您想要最新最好的，您可以从项目网站获得相对简单的说明：

MPICH：www.mpich.org

打开 MPI：wwww.open-mpi.org