[browny]

Hi there,

hoping that someone else might have seen this in the past in order to provide some help.

I am attempting to use these instructions on the OpenFoam wiki to install OpenFoam 6 on a RHEL 7.8 server but I am running into issues at step 10 when it attempts to make Paraview.

The output is indicating that it could not find any of the MPI libraries;

-- Could NOT find MPI_C (missing: MPI_C_LIBRARIES MPI_C_INCLUDE_PATH)
-- Could NOT find MPI_CXX (missing: MPI_CXX_LIBRARIES MPI_CXX_INCLUDE_PATH)
-- Could NOT find MPI_Fortran (missing: MPI_Fortran_LIBRARIES MPI_Fortran_INCLUDE_PATH)
-- Could NOT find MPI_C (missing: MPI_C_LIBRARIES MPI_C_INCLUDE_PATH)
-- Could NOT find MPI_CXX (missing: MPI_CXX_LIBRARIES MPI_CXX_INCLUDE_PATH)
-- Could NOT find MPI_Fortran (missing: MPI_Fortran_LIBRARIES MPI_Fortran_INCLUDE_PATH)
-- Could NOT find MPI_C (missing: MPI_C_LIBRARIES MPI_C_INCLUDE_PATH)
-- Could NOT find MPI_CXX (missing: MPI_CXX_LIBRARIES MPI_CXX_INCLUDE_PATH)
-- Could NOT find MPI_Fortran (missing: MPI_Fortran_LIBRARIES MPI_Fortran_INCLUDE_PATH)
-- Could NOT find MPI_C (missing: MPI_C_LIBRARIES MPI_C_INCLUDE_PATH)
-- Could NOT find MPI_CXX (missing: MPI_CXX_LIBRARIES MPI_CXX_INCLUDE_PATH)
-- Could NOT find MPI_Fortran (missing: MPI_Fortran_LIBRARIES MPI_Fortran_INCLUDE_PATH)
-- Could NOT find MPI_C (missing: MPI_C_LIBRARIES MPI_C_INCLUDE_PATH)
-- Could NOT find MPI_CXX (missing: MPI_CXX_LIBRARIES MPI_CXX_INCLUDE_PATH)
-- Could NOT find MPI_Fortran (missing: MPI_Fortran_LIBRARIES MPI_Fortran_INCLUDE_PATH)
-- Could NOT find MPI_C (missing: MPI_C_LIBRARIES MPI_C_INCLUDE_PATH)
-- Could NOT find MPI_CXX (missing: MPI_CXX_LIBRARIES MPI_CXX_INCLUDE_PATH)
-- Could NOT find MPI_Fortran (missing: MPI_Fortran_LIBRARIES MPI_Fortran_INCLUDE_PATH)

I will note that this is not being performed in the root directory, but instead in a /opt location on a mounted storage so the instructions are a little different but when I look at the previous step, the associated log for openmpi 2.1.1 doesn't appear to indicate any build errors and the configure command shows the preferred install directory;

./configure --prefix=/opt/shared/openfoam/build/OpenFOAM/ThirdParty-6/platforms/linux64Gcc/openmpi-2.1.1 --disable-orterun-prefix-by-default --enable-shared --disable-static --enable-mpi-thread-multiple --libdir=/opt/shared/openfoam/build/OpenFOAM/ThirdParty-6/platforms/linux64Gcc/openmpi-2.1.1/lib64 --enable-mpi-fortran=none --disable-mpi-profile --with-sge

However, when I navigate to this directory, there is no openmpi directory at all. There is an empty openmpi directory in /opt/.../platforms/linux64GccDPInt64/lib but as mentioned, this is empty.

I've attempted to install ParaView with our openmpi 2.1.3 (loaded in via LMOD) but this fails so I believe I need the particular package provided that should have been installed with the ./Allwmake command.

Hoping someone else has come across this before and might be able to point me in the right direction.

Thanks a heap,
Ryan

[browny]

So just an update on the off chance it helps anyone out. Turns out there was an error that was buried in the logs that I missed every other time I tried to review it due to the sheer size;

libtool:   error: require no space between '-L' and '-lrt'
make[2]: *** [mca_pml_ucx.la] Error 1
make[2]: Leaving directory `/opt/shared/openfoam/build/OpenFOAM/ThirdParty-6/openmpi-2.1.1/ompi/mca/pml/ucx'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/opt/shared/openfoam/build/OpenFOAM/ThirdParty-6/openmpi-2.1.1/ompi'
make: *** [all-recursive] Error 1

With this, I actually came across this git post, easybuild-easyconfigs issue 5805, for a different project with the same error and determined the issue was that the ucx-devel package is installed so I've added the following to the Allwmake file and it is seemingly building and allowing me to move on to the next step;

101  101              --disable-mpi-profile \
     102 +            --without-ucx \
102  103              $configOpt \

Hope this might help someone else out!

[olesen]

Nice update, but if you refer to more recent
https://develop.openfoam.com/Develop...equirements.md

it mentions that you probably don't want to be using that particular OpenMPI version anyhow.
It also refers to this bug report:
https://github.com/open-mpi/ompi/issues/5375

The min recommended openmpi2 version of 2.1.6 was established by verifying when the corresponding patch fix actually went in.