Spack environment based build automation

scripts/build.sh

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+TARGET="$1"
+BUILD_MODE="$2"
+if [[ -z "$TARGET" ]]; then
+    echo "Usage: ./build.sh [cpu|gpu]"
+    exit 1
+fi
+
+# PATHS
+HOME_PATH="$(dirname "$PWD")"
+SPACK_PATH=$HOME_PATH/spack
+. $SPACK_PATH/share/spack/setup-env.sh 
+PROJECT_DIR=$HOME_PATH/x3d2
+BUILD_DIR="$PROJECT_DIR/build_$TARGET"
+
+# Set flags depending on the mode
+if [[ "$TARGET" == "gpu" ]]; then
+    	echo "Building with GPU flags..."
+	# CMAKE_FLAGS="-DUSE_GPU=ON -DUSE_CPU=OFF"
+	spack env activate -p $PROJECT_DIR/scripts/spack-env-gpu
+	spack install
+	spack load nvhpc
+	spack load cmake	
+	# Fatal Error: Cannot open module file 'mpi.mod' for reading at (1): No such file or directory
+	# spack location -i nvhpc	
+elif [[ "$TARGET" == "cpu" ]]; then
+    	echo "Building with CPU flags..."
+	spack env activate -p $PROJECT_DIR/scripts/spack-env-cpu
+	spack install
+	spack load openmpi
+	spack load cmake
+else
+    echo "Invalid option: $TARGET"
+    echo "Use: cpu or gpu"
+    exit 1
+fi
+
+export FC=mpif90
+rm -rf $BUILD_DIR
+if [[ "$BUILD_MODE" == "debug" ]]; then
+	cmake -S "$PROJECT_DIR" -B $BUILD_DIR -DCMAKE_BUILD_TYPE=Debug
+else
+	cmake -S "$PROJECT_DIR" -B $BUILD_DIR -DCMAKE_BUILD_TYPE=Release
+fi
+cd $BUILD_DIR
+make
+echo "Running Tests..."
+make test

scripts/spack-env-cpu/spack.yaml

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+# This is a Spack Environment file.
+#
+# It describes a set of packages to be installed, along with
+# configuration settings.
+spack:
+  # add package specs to the `specs` list
+  specs:
+  - cmake
+  - openmpi@5.0.5
+  view: true
+  concretizer:
+    unify: true

scripts/spack-env-gpu/spack.yaml

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+# This is a Spack Environment file.
+# 
+# It describes a set of packages to be installed, along with
+# configuration settings.
+spack:
+  # add package specs to the `specs` list
+  specs:
+  - nvhpc+mpi
+  - cmake
+  view: true
+  concretizer:
+    unify: true