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# allow parallel jobs, but don't load up more than 8
NPROC=$( nproc )
MAX_CPU=8
N_CPU=$(( NPROC > MAX_CPU ? MAX_CPU : NPROC ))
# MPI tests are set up to run on 3 processes. Spread them leanly over the available processors (don't have more than 2 tests using one processor).
# e.g. run 1 MPI test at a time over 1-3 processors, or 2 tests at a time over 4-6 processors, or 3 tests over 7-9 processors, etc.
N_MPI=3
N_MPI_TESTS=$(( (N_CPU+N_MPI-1)/N_MPI ))
export OMPI_MCA_plm_rsh_agent=/bin/false
export OMPI_MCA_rmaps_base_oversubscribe=1
DEMO_DIR=./dolfin-demo
rm -rf $DEMO_DIR
cp -rL /usr/share/dolfin/demo $DEMO_DIR
cd $DEMO_DIR
cmake -DCMAKE_C_COMPILER=mpicc .
make -j${N_CPU} all
DEMO_LIST=`find . -executable -name demo*[^.dir]`
# construct ctest scripts
# (cf. add_test in source cmake/scripts/generate-cmakefiles.py)
CTESTFILE=CTestTestfile.cmake
for d in ${DEMO_LIST}; do
demo_bin=`basename $d`
dir=`dirname $d`
echo -e "subdirs(\"${dir}\")" >> $CTESTFILE
echo -e "add_test(${demo_bin}_mpi \"mpirun\" \"-np\" \"${N_MPI}\" \"./${demo_bin}\")" >> $dir/$CTESTFILE
echo "add_test(${demo_bin}_serial \"./${demo_bin}\")" >> $dir/$CTESTFILE
done
# demo_hyperelasticity_mpi diverges, so skip
echo "set(CTEST_CUSTOM_TESTS_IGNORE demo_hyperelasticity_mpi)" > CTestCustom.cmake
echo "running C++ demos (serial)"
ctest --output-on-failure -j${N_CPU} -R serial
echo "running C++ demos (MPI)"
ctest --output-on-failure -j${N_MPI_TESTS} -R mpi
cd ..
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