mpi4py 4.1.0 breaks compatibility with Open MPI

[cattabiani]

Hello mpi4py team,

I’m a developer using mpi4py in a project, and I wanted to share a quick heads-up.

Since the recent release (about an hour ago), I’m encountering the following error on all my environments (local and CI):

from mpi4py import MPI
E   ImportError: libmpi.so.12: cannot open shared object file

It seems the new mpi4py version may no longer be compatible with OpenMPI 4.x (which provides libmpi.so.40). Is this an intended change or a known issue?

Thanks for your work on mpi4py!

PS: If I doungrade to 4.0.3 the problem disappears obv

[dalcinl]

No, that's not intended. However, as mpi4py is now installed from wheels, there are some nuances.

Is that the full traceback you are getting? Any chance you have a broken symlink libmpi.so -> libmpi.so.12 in your system 's libdir?

The following two environment variables should "force" mpi4py to pick Open MPI.

export MPI4PY_MPIABI=openmpi  # if you always wants openmpi, and never mpich
export LD_LIBRARY_PATH=/path/to/openmpi/lib  # such that libmpi.so.40 can be found

[cattabiani]

A broken symlink is improbable as it failed also in the github CI and I am not really fixing the library anywhere in my repo.
About the env variables: I would avoid to hardcode paths as I unfortunately need to use both openmpi and mpich. As a hotfix keeping it to 4.0.3 is working.

That is not the fulls tack trace because it was really long. This is a bigger snippet, maybe it can help:

dlopen(/opt/homebrew/lib/libmpi.40.dylib, 0x000B): tried: 
  '/opt/homebrew/lib/libmpi.40.dylib' (no such file), 
  '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.40.dylib' (no such file), 
  '/opt/homebrew/lib/libmpi.40.dylib' (no such file)
dlopen(/opt/local/lib, 0x000B): tried: 
  '/opt/local/lib' (no such file), 
  '/System/Volumes/Preboot/Cryptexes/OS/opt/local/lib' (no such file), 
  '/opt/local/lib' (no such file) 
(from /.../neurodamus/tests/conftest.py)
For more information see https://pluggy.readthedocs.io/en/stable/api_reference.html#pluggy.PluggyTeardownRaisedWarning
  config = pluginmanager.hook.pytest_cmdline_parse(
ImportError while loading conftest '/.../neurodamus/tests/conftest.py'.
tests/conftest.py:9: in <module>
    from mpi4py import MPI
.tox/unit-ngv-mpi/lib/python3.11/site-packages/mpi4py/_mpiabi.py:290: in find_spec
    mpiabi_suffix = _get_mpiabi_suffix(fullname)
.tox/unit-ngv-mpi/lib/python3.11/site-packages/mpi4py/_mpiabi.py:276: in _get_mpiabi_suffix
    mpiabi = _get_mpiabi()
.tox/unit-ngv-mpi/lib/python3.11/site-packages/mpi4py/_mpiabi.py:258: in _get_mpiabi
    mpiabi = _get_mpiabi_from_libmpi(libmpi)
.tox/unit-ngv-mpi/lib/python3.11/site-packages/mpi4py/_mpiabi.py:217: in _get_mpiabi_from_libmpi
    lib = _dlopen_libmpi(libmpi)
.tox/unit-ngv-mpi/lib/python3.11/site-packages/mpi4py/_mpiabi.py:210: in _dlopen_libmpi
    raise RuntimeError("\n".join(errors))
E   RuntimeError: cannot load MPI library

I forgot to mention, I am on mac

[dalcinl]

A broken symlink is improbable as it failed also in the github CI and I am not really fixing the library anywhere in my repo.

How/where is Open MPI installed? Can you point me at the github CI logs? I need to understand what's going on.

About the env variables: I would avoid to hardcode paths as I unfortunately need to use both openmpi and mpich.

There are different approaches to ask mpi4py to use MPICH vs Open MPI. For testing and development, now you can even install MPICH and Open MPI with pip, and mpi4py should pick the one installed in the same virtual environment.

As a hotfix keeping it to 4.0.3 is working.

Be aware that I do not consider your issue report as a bug, therefore do not expect things to change or get eventually fixed.
In simple words, your hotfix will keep you stuck in the past for ever.

Tip

You can still install mpi4py from sources: https://mpi4py.readthedocs.io/en/stable/install.html#building-from-sources passing --no-binary=mpi4py to pip install ...

[dalcinl]

@cattabiani Sorry, I somehow missed some details from your previous traceback dump.

In macOS, there are some hard restrictions due to the way the OS works regarding shared libraries.
However, if you install MPICH or Open MPI with homebrew or MacPorts, things should work.

[cattabiani]

So, my initial setup was a little complicated because I was using spack and tox and I was not sure on where it was picking up the mpi library under the hood with 4.0.3. Also notice that the CI is on a linux distro, my local setup is on mac. The error is always the same.

At any rate, I may have some more info. I wanted to test the basics.

• first I created a new python virtual env with python 3.11.6 (installed via spack).
• then I check that I do not have openmpi or mpich anywhere in my system (also, not loaded with spack):

(venv) katta@coeus OBI % brew list --versions open-mpi
(venv) katta@coeus OBI % which mpicc                  
mpicc not found
(venv) katta@coeus OBI % mpicc --version              
zsh: command not found: mpicc
(venv) katta@coeus OBI % 

• I still get the same result: I can from mpi4py import MPI with the 4.0.3 while the 4.1.0 gives this error (this time is the full error):

(venv) katta@coeus OBI % python -c "from mpi4py import MPI"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1138, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1078, in _find_spec
  File "/Users/katta/OBI/venv/lib/python3.11/site-packages/mpi4py/_mpiabi.py", line 290, in find_spec
    mpiabi_suffix = _get_mpiabi_suffix(fullname)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/katta/OBI/venv/lib/python3.11/site-packages/mpi4py/_mpiabi.py", line 276, in _get_mpiabi_suffix
    mpiabi = _get_mpiabi()
             ^^^^^^^^^^^^^
  File "/Users/katta/OBI/venv/lib/python3.11/site-packages/mpi4py/_mpiabi.py", line 258, in _get_mpiabi
    mpiabi = _get_mpiabi_from_libmpi(libmpi)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/katta/OBI/venv/lib/python3.11/site-packages/mpi4py/_mpiabi.py", line 217, in _get_mpiabi_from_libmpi
    lib = _dlopen_libmpi(libmpi)
          ^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/katta/OBI/venv/lib/python3.11/site-packages/mpi4py/_mpiabi.py", line 210, in _dlopen_libmpi
    raise RuntimeError("\n".join(errors))
RuntimeError: cannot load MPI library
dlopen(/Users/katta/OBI/venv/lib/libmpi.dylib, 0x000B): tried: '/Users/katta/OBI/venv/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/venv/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/venv/lib/libmpi.dylib' (no such file)
dlopen(/Users/katta/OBI/venv/lib/libmpi.12.dylib, 0x000B): tried: '/Users/katta/OBI/venv/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/venv/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/venv/lib/libmpi.12.dylib' (no such file)
dlopen(/Users/katta/OBI/venv/lib/libmpi.40.dylib, 0x000B): tried: '/Users/katta/OBI/venv/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/venv/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/venv/lib/libmpi.40.dylib' (no such file)
dlopen(@rpath/libmpi.dylib, 0x000B): tried: '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.dylib' (no such file), '/opt/homebrew/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.dylib' (no such file), '/opt/homebrew/opt/libffi/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/libffi/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.dylib' (no such file), '/opt/homebrew/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.dylib' (no such file), '/opt/homebrew/opt/libffi/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/libffi/lib/libmpi.dylib' (no such file)
dlopen(@rpath/libmpi.12.dylib, 0x000B): tried: '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.12.dylib' (no such file), '/opt/homebrew/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.12.dylib' (no such file), '/opt/homebrew/opt/libffi/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/libffi/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.12.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.12.dylib' (no such file), '/opt/homebrew/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.12.dylib' (no such file), '/opt/homebrew/opt/libffi/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/libffi/lib/libmpi.12.dylib' (no such file)
dlopen(@rpath/libmpi.40.dylib, 0x000B): tried: '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.40.dylib' (no such file), '/opt/homebrew/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.40.dylib' (no such file), '/opt/homebrew/opt/libffi/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/libffi/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/python-3.11.6-j6zaiiu6mxa2c7t4bndg67ns5dpbagou/lib64/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/sqlite-3.43.2-rhasc724c5tyksv7y7n4e3fhmunbbjsn/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxcrypt-4.4.35-mt2inqhvem3d4oor3qtekb5g2ab5svsg/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gettext-0.22.3-jnfyb2cwdjdxyd6yrkbtn5mrkvagzbah/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libxml2-2.10.3-u6jodzhetckzbvfwf72wpr6tdonbchbo/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/zlib-ng-2.1.4-ixgctpihkiyt6shbsrtlr56546cleyci/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/xz-5.4.1-lg2cln5kc5cau4dkrtftv5uxhimhkwyz/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/gdbm-1.23-k3w6kaehrps74meuhbpjktkuuttfztb7/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/readline-8.2-uyiawy7mhzrhlohc6dti4q5uldybvuuv/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/ncurses-6.4-oh54oqgur3osoqs2x7hcqpijbyhbzd3j/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/expat-2.5.0-qsg7k24sokl242zywwi7leulnv3c4p26/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/bzip2-1.0.8-7ijbvg3wb6t3hjxrq64x24mdxxsuoupm/lib/libmpi.40.dylib' (no such file), '/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/katta/OBI/spack/opt/spack/darwin-macos-m1/clang-16.0.6/libiconv-1.17-hc4edf43wdobxpms2i5x5fg4efzilm3j/lib/libmpi.40.dylib' (no such file), '/opt/homebrew/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.40.dylib' (no such file), '/opt/homebrew/opt/libffi/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/libffi/lib/libmpi.40.dylib' (no such file)
dlopen(/usr/local/lib, 0x000B): tried: '/usr/local/lib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/usr/local/lib' (no such file), '/usr/local/lib' (no such file)
dlopen(/opt/homebrew/lib/libmpi.dylib, 0x000B): tried: '/opt/homebrew/lib/libmpi.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.dylib' (no such file), '/opt/homebrew/lib/libmpi.dylib' (no such file)
dlopen(/opt/homebrew/lib/libmpi.12.dylib, 0x000B): tried: '/opt/homebrew/lib/libmpi.12.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.12.dylib' (no such file), '/opt/homebrew/lib/libmpi.12.dylib' (no such file)
dlopen(/opt/homebrew/lib/libmpi.40.dylib, 0x000B): tried: '/opt/homebrew/lib/libmpi.40.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libmpi.40.dylib' (no such file), '/opt/homebrew/lib/libmpi.40.dylib' (no such file)
dlopen(/opt/local/lib, 0x000B): tried: '/opt/local/lib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/local/lib' (no such file), '/opt/local/lib' (no such file)
(venv) katta@coeus OBI % 

I suspect the wheel has changed. For sure it is not a problem of my project + mpi4py since this virtual env is not connected to it in any way. Does mpi4py wheel need an openmpi library now to work? Because before it did not require that.

EDIT: it also works if I install it like this:
mpi4py --no-binary=mpi4py

[dalcinl]

@cattabiani You should read all the information here: https://mpi4py.readthedocs.io/en/stable/install.html#wheel-packages

Ling story short: since the latest release 4.1.0, mpi4py publishes pre-built binary wheels. These wheels require an external MPI library, either MPICH or Open MPI. For all that to work, the MPI library must be found.

On Linux, if using an MPI installed in a non-system location, it is a matter of setting LD_LIBRARY_PATH, although there are some alternative mechanisms.

On macOS, due to the security-related OS restrictions, things are more complicated, the OS no longer let you use DYLD_LIBRARY_PATH to alter the search path. The only thing mpi4py can do is to hardwire some common know installation paths. If MPICH is installed with Homebrew or MacPorts (in the usual default location these packages install stuff), then things should work out of the box. These strict requirements are listed here: https://mpi4py.readthedocs.io/en/stable/install.html#macos

In the case of Spack on macOS, given the way it works of installing in custom prefix, then MPICH or Open MPI installed via Spack will most likely not work. If using Spack, I guess you should install mpi4py with spack? Otherwise, install form sources using the --no-binary=mpi4py.

Alternatively, you can install either mpich or openmpi with pip, look at the second tip here: https://mpi4py.readthedocs.io/en/stable/install.html#wheel-packages
These mpich/openmpi Python packages are carefully crafted such that you can install them in any virtual environement, and if mpi4py is installed alongside, things will then just work.

[cattabiani]

ah, thank you for the docs. I missed them.

Yes, this is the problem I think. Before there were no pre-built binary wheels and we were installing with --no-binary as default. Thank you for the help. I will go ahead and close this issue since there is no issue in mpi4py. This is what is expected from the new binary wheels