Adding build instructions for new compute SIGMA2 olivia, Norway

builds/olivia-gnu/.gitignore

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+CMakeCache.txt
+CMakeFiles
+Makefile
+autocopy.log
+cism_driver
+cmake_install.cmake
+fortran_autocopy_includes
+fortran_autogen_srcs
+fortran_mod_files
+lib

builds/olivia-gnu/arch-modules

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+# olivia since December 2025
+module purge
+source /opt/cray/pe/lmod/lmod/init/profile
+export MODULEPATH=/cluster/software/modules/Core/
+module load NRIS/CPU
+module load CMake/3.26.3-GCCcore-12.3.0
+module load netCDF-Fortran/4.6.1-gompi-2023a
+module load OpenBLAS/0.3.23-GCC-12.3.0
+

builds/olivia-gnu/clean.sh

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+rm -rf autocopy.log
+rm -rf cism_driver
+rm -rf CMakeCache.txt
+rm -rf CMakeFiles
+rm -rf cmake_install.cmake
+rm -rf fortran_autocopy_includes
+rm -rf fortran_autogen_srcs
+rm -rf fortran_mod_files
+rm -rf include
+rm -rf lib
+rm -rf Makefile

builds/olivia-gnu/olivia-gnu-cmake.sh

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+# Run this script by typing: source olivia-gnu-cmake.sh
+# After this script completes, type: make
+# If rebuilding, type 'make clean' before running 'make'
+# or call ./clean.sh
+
+## December 2025
+#module purge
+#source /opt/cray/pe/lmod/lmod/init/profile
+#export MODULEPATH=/cluster/software/modules/Core/
+#module load NRIS/CPU
+#module load CMake/3.26.3-GCCcore-12.3.0
+#module load netCDF-Fortran/4.6.1-gompi-2023a
+#module load OpenBLAS/0.3.23-GCC-12.3.0
+
+# source modules
+. arch-modules
+
+# remove old build data:
+rm -f ./CMakeCache.txt
+rm -rf ./CMakeFiles
+
+echo
+echo "Doing CMake Configuration step"
+
+cmake \
+  -D CISM_BUILD_CISM_DRIVER:BOOL=ON \
+  -D CISM_ENABLE_BISICLES=OFF \
+  -D CISM_ENABLE_FELIX=OFF \
+\
+  -D CISM_USE_TRILINOS:BOOL=OFF \
+  -D CISM_MPI_MODE:BOOL=ON \
+  -D CISM_SERIAL_MODE:BOOL=OFF \
+\
+  -D CISM_USE_GPTL_INSTRUMENTATION:BOOL=OFF \
+  -D CISM_COUPLED:BOOL=OFF \
+  -D CISM_USE_CISM_FRONT_END:BOOL=OFF \
+\
+  -D CISM_NETCDF_DIR=$EBROOTNETCDFMINFORTRAN \
+  -D CMAKE_VERBOSE_MAKEFILE:BOOL=OFF \
+\
+  -D CMAKE_CXX_COMPILER=mpiicpc \
+  -D CMAKE_C_COMPILER=mpicc \
+  -D CMAKE_Fortran_COMPILER=mpif90 \
+\
+  -D CMAKE_EXE_LINKER_FLAGS="-Wl,-rpath=${EBROOTNETCDFMINFORTRAN}/lib,-rpath=${EBROOTNETCDF}/lib" \
+\
+  -D CMAKE_Fortran_FLAGS:STRING="-fconvert=big-endian -ffree-line-length-none -ffixed-line-length-none -ffree-form -O" \
+  -D CMAKE_C_FLAGS:STRING="-std=gnu99 -O" \
+  -D CISM_EXTRA_LIBS:STRING="-lopenblas" \
+ ../..
+
+# Note: last argument above  "../.."  is path to top-level cism directory
+