The OPAL Discussion Forum

["Alba Jacas Arnau (PSI)" <arnau.albajacas AT psi.ch>]

Dear Andreas and Seongyeol,

I had a similar problem a while back, where OPAL would not compile because conda had installed some different version of mpi.

I had a conda environment where I had installed many packages, and in my .bashrc I had this line prepending the libraries of the environment to LD_LIBRARY_PATH

export LD_LIBRARY_PATH=/path/to/my_env/lib:$LD_LIBRARY_PATH

That's why OPAL was using the wrong MPI. I removed this line and now it works fine. 

Maybe you have a similar line in conda.sh

Best,

Arnau

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From: opal-request AT lists.psi.ch <opal-request AT lists.psi.ch> on behalf of Kim, Seongyeol <seongyeol.kim AT anl.gov>
Sent: 26 January 2022 21:55:14
To: Adelmann Andreas (PSI)
Cc: opal AT lists.psi.ch
Subject: Re: [Opal] mpirun and anaconda

 

Dear Andreas,

Please find the attached pdf file for more details.

When calling the OPAL, I simply used: opal input.in where input.in indicates the name of the input file.

For the parallel running, I used: mpirun -np number opal input.in. Here I put the number to 4 just in case for checking.

Indeed, when I activate the Anaconda through .bashrc, you can see that there are 4 same messages when I try to do parallel run.

On the other hand, when I deactivate the Anaconda, then it works fine. This also happens when using miniconda.

Thank you for your help!

Best regards,

Seongyeol

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From: Adelmann Andreas (PSI) <andreas.adelmann AT psi.ch>
Sent: Wednesday, January 26, 2022 14:20
To: Kim, Seongyeol <seongyeol.kim AT anl.gov>
Cc: opal AT lists.psi.ch <opal AT lists.psi.ch>
Subject: Re: [Opal] mpirun and anaconda

 

Dear Seongyeol to me this is an incompatibility with the MPI library

OPAL is build with and, your Anaconda/Python installation.  

Can you elaborate a bit more how you call OPAL for the notebook?

 

Cheers A

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On 26 Jan 2022, at 19:13, Kim, Seongyeol <seongyeol.kim AT anl.gov> wrote:

Seongyeol