Re: [Anuga-user] Error while installing anuga on ubuntu 18.04

[Christos A. <alt...@gm...>]

Hi Kumar,

Since I very recently got through the installation of ANUGA on a cluster I
will try to share my limited knowledge on this.
This error message comes from the fact that pypar is not compiled properly.
Pypar, to the best of my knowledge cannot be installed via pip or conda and
you need to do the installation from source.
You need to download pypar and check the setup.py file. There is a certain
line which invokes the command mpicc -show and then pypar knows how it
should compile the mpiext.c file.

What is the output of mpicc -show command on the cluster??
Where are you installing pypar?? Do you have a local installation of python
site-packages?? Go the the installation folder of pypar, which would be
most probably something like ~/python/lib64/python2.7/site-packages/pypar
and check if there is a file called mpiext.so. If it exists, then
compilation was successful and you need to set the path to the correct
location. If you do not see this file, then you have not compiled it, most
probably because the setup.py of pypar installation did not find the mpicc
compiler.

My suggestion would be to install pypar locally independently of anuga and
do the tests. If you are able to do this, then anuga will be compiled with
no problems.

I apologize for the lack of better instructions but I am not proficient in
doing these things. I just passed some of my recent experience.

Best
Christos

On Sun, Aug 4, 2019 at 1:04 PM Kumar Chandranshu <cha...@gm...>
wrote:

> I got an error while running the command *bash tools/install_ubuntu.sh*
> Command Line Output:
>
>
> *ERROR: C extension mpiext could not be imported.Please compile mpiext.c
> e.g. by running python compile_pypar_locally.py in the pypar directory, or
> by using python setup.py install*
>
> *WARNING: MPI library could not be initialised. Running sequentially*
>
> Can someone please help me resolve this issue? I'm trying to get started
> with anuga for my college project.
>
> Thanks and regards
> Chandranshu
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