The OPAL Discussion Forum

[Nicole R Neveu <nneveu AT stanford.edu>]

Hi Seongyeol,

 

Maybe you have accidentally installed another mpi in your conda environment.

This happened to me recently. You can check with mpi you are using by calling:

>which mpirun

 

See if you get the same results w/ and w/o your conda env loaded.

 

Thanks,

 

Nicole

 

From: opal-request AT lists.psi.ch <opal-request AT lists.psi.ch> on behalf of Kim, Seongyeol <seongyeol.kim AT anl.gov>
Date: Wednesday, January 26, 2022 at 12:55 PM
To: Adelmann Andreas (PSI) <andreas.adelmann AT psi.ch>
Cc: opal AT lists.psi.ch <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

---

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