Problem installing PETSc

[javjrg]

Hi everyone,

I'm trying to install Firedrake following the steps provided on the webpage. However, I encountered an issue during the installing-petsc step. When I run the following command:

python3 ../firedrake-configure --show-petsc-configure-options | xargs -L1 ./configure

I get the following error:

=============================================================================================
                         Configuring PETSc to compile on your system
=============================================================================================
=============================================================================================
                                     ***** WARNING *****
  Using version 2.12.0 of package HWLOC, PETSc is tested with 2.11. Suggest using
  --download-hwloc for a compatible hwloc
=============================================================================================
TESTING: CxxMPICheck from config.packages.MPI(config/BuildSystem/config/packages/MPI.py:671)
*********************************************************************************************
           UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details):
---------------------------------------------------------------------------------------------
                       C++ error! MPI_Finalize() could not be located!
*********************************************************************************************

Has anyone encountered this issue before? Any suggestions on how to resolve it?

I’ve attached the configure.log for reference.

Thanks in advance for your help!

configure.log

[connorjward]

Do you have an MPI installed? What operating system do you have?

[javjrg]

I have MPI installed by

brew install open-mpi

and my OS is macOS Sequoia 15.3.2

[connorjward]

I see /Applications/FreeFem++.app/Contents/ff-4.14/bin is on your PATH which is getting picked up instead of the OpenMPI installed through homebrew. I think you can either:

• Amend PATH to not include it
• Uninstall freefem
• Specify the right MPI by passing --with-mpi=/opt/homebrew (I think that's the right option)

[javjrg]

Thanks a lot! it works for me!