Unstructured Mesh Filter: libMesh crashing while writing ExodusII/Nemesis mesh file

User Support
2

After coming across this thread Error when writing Libmesh exodus file - User Support - OpenMC, reverting to an older version of libMesh (v1.7.1) resolved the issue.

I followed the instructions in the shell scripts available at openmc-dev/openmc/tools/ci in GitHub.

Specifically, gha-install-libmesh.sh

#!/bin/bash
set -ex

# libMESH install
pushd $HOME
mkdir LIBMESH && cd LIBMESH
git clone https://github.com/libmesh/libmesh -b v1.7.1 --recurse-submodules
mkdir build && cd build
export METHODS="opt"

if [[ $MPI == 'y' ]]; then
    ../libmesh/configure --prefix=$HOME/LIBMESH CXX=mpicxx CC=mpicc FC=mpifort F77=mpif77 \
        --enable-exodus --disable-netcdf-4 --disable-eigen --disable-lapack
else
    ../libmesh/configure --prefix=$HOME/LIBMESH --enable-exodus --disable-netcdf-4 --disable-eigen --disable-lapack --disable-mpi
fi
make -j4 install
rm -rf $HOME/LIBMESH/build

popd

and gha-install-dagmc.sh

#!/bin/bash
set -ex

# MOAB Variables
MOAB_BRANCH='Version5.1.0'
MOAB_REPO='https://bitbucket.org/fathomteam/moab/'
MOAB_INSTALL_DIR=$HOME/MOAB/

# DAGMC Variables
DAGMC_BRANCH='develop'
DAGMC_REPO='https://github.com/svalinn/dagmc'
DAGMC_INSTALL_DIR=$HOME/DAGMC/

CURRENT_DIR=$(pwd)

# MOAB Install
cd $HOME
mkdir MOAB && cd MOAB
git clone -b $MOAB_BRANCH $MOAB_REPO
mkdir build && cd build
cmake ../moab -DENABLE_HDF5=ON -DENABLE_NETCDF=ON -DBUILD_SHARED_LIBS=ON -DCMAKE_INSTALL_PREFIX=$MOAB_INSTALL_DIR -DENABLE_BLASLAPACK=OFF
make -j && make -j install
rm -rf $HOME/MOAB/moab $HOME/MOAB/build

# DAGMC Install
cd $HOME
mkdir DAGMC && cd DAGMC
git clone -b $DAGMC_BRANCH $DAGMC_REPO
mkdir build && cd build
cmake ../dagmc -DBUILD_TALLY=ON -DCMAKE_INSTALL_PREFIX=$DAGMC_INSTALL_DIR -DBUILD_STATIC_LIBS=OFF -DMOAB_DIR=$MOAB_INSTALL_DIR
make -j install
rm -rf $HOME/DAGMC/dagmc $HOME/DAGMC/build

cd $CURRENT_DIR