Hi all, I am using an ARE session with xp65 conda/analysis3. When I tried to read a netCDF file using xarray, I encountered an error as follows: ImportError: libmpi.so.40: cannot open shared object file: No such file or directory A full screenshot is attached below: [Screenshot 2025-12-15 at 4.…

Same thing suddenly happening to me too, in code which had been working perfectly. I am getting it when trying to import netCDF4: [image] Using modules “openmpi conda/analysis3” in the ARE setup. Happens with various kernel choices (2025.x, for all values of x I’ve tried).

Error logged with helpdesk Service Management

^ Just ran new ARE session, still getting same error.

Issue persists (with analysis3-25.10)

Sorry I am trying to fix the issue for @Michael_Barnes . I’ll be more cautious next time

The error is happening again just now

It is back - /g/data/xp65/public/apps/med_conda_scripts/analysis3-25.11.d/bin/cdo: error while loading shared libraries: libmpi.so.40: cannot open shared object file: No such file or directory Applying Scott Wales’s fix - export LD_LIBRARY_PATH=/apps/openmpi/5.0.8/lib:/apps/openmpi/5.0.8/lib/GNU:$L…

Xarray: libmpi.so.40 error

Technical

Michael_Barnes (Michael Barnes) 15 December 2025 05:33 2

I get the same error using 25.04 and 25.10 as well. @rbeucher is this related to my eariler request perhaps? [Outdated openmpi in xp65 analysis3]

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Xarray: libmpi.so.40 error

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