Installing mpi4py

Question

I am trying to install mpi4py in my Linux machine. I have recently installed anaconda 4.1.1 and according to their documentation the package is suppose to come with mpi4py 2.0.0. When I tried verifying with "conda list" I am not able to find the package in the list.

I have tried "pip install mpi4py" and I am getting an error like this "Failed building wheel for mpi4py" I had no luck with "easy_install mpi4py" as well.

Which specific OS do you have?...also can you paste your full terminal output when you try pip install mpi4py, please? — Hackerman
– Hackerman, Commented Aug 29, 2016 at 19:36

jmd_dk · Accepted Answer · 2017-10-22 22:12:11Z

4

When installing mpi4py, your MPI binaries has to be on the PATH. That is, if you type e.g. which mpiexec and nothing comes up, you have to run

export PATH="/path/to/mpi/bin:${PATH}"

Now which mpiexec should print the path of the MPI executable, and so pip and conda should be able to locate MPI.

answered Oct 22, 2017 at 22:12

jmd_dk

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Community · Accepted Answer · 2017-05-23 11:53:09Z

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It looks like you are missing a dependency. See this link for a possible explanation.

edited May 23, 2017 at 11:53

CommunityBot

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answered Sep 14, 2016 at 16:33

jmlarson

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