add installation script

install.sh

@@ -0,0 +1,36 @@
+## Copyright UniSparse authors. All Rights Reserved.
+
+## Install Eigen library
+wget https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.tar.gz -P $EIGEN_ROOT
+cd $EIGEN_PATH && tar -xzf eigen-3.4.0.tar.gz
+
+## Install LLVM/MLIR
+git clone --depth 1 --branch llvmorg-15.0.0 https://github.com/llvm/llvm-project.git
+mkdir -p $LLVM_PATH/llvm_project/build && cd $LLVM_PATH/llvm_project/build
+cmake ../llvm -DLLVM_ENABLE_PROJECTS="clang;lld;mlir" \
+    -DLLVM_BUILD_EXAMPLES=ON -DLLVM_TARGETS_TO_BUILD="host;NVPTX" \
+    -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=ON \
+    -DLLVM_INSTALL_UTILS=ON -DLLVM_BUILD_UTILS=ON \
+    -DLLVM_USE_LINKER=lld -DMLIR_INCLUDE_INTEGRATION_TESTS=ON \
+    -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
+cmake --build . -j $(nproc)
+
+## OpenMp
+cd $LLVM_PATH/llvm_project/openmp && \
+    mkdir build && cd build && \
+    cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ .. 
+make -j $(nproc)
+export CPATH=$LLVM_PATH/llvm_project/openmp/build/runtime/src:$CPATH
+export LD_LIBRARY_PATH=$LLVM_PATH/llvm_project/openmp/build/runtime/src:$LD_LIBRARY_PATH
+
+## Install UniSparse
+mkdir -p $UniSparse_PATH/UniSparse/build && cd $UniSparse_PATH/UniSparse/build
+cmake .. \
+   -DMLIR_DIR=$LLVM_PATH/llvm_project/build/lib/cmake/mlir \
+   -DLLVM_EXTERNAL_LIT=$LLVM_PATH/llvm_project/build/bin/llvm-lit \
+   -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ 
+cmake --build . -j $(nproc)
+export LD_LIBRARY_PATH=$UniSparse_PATH/UniSparse/build/lib:$LD_LIBRARY_PATH
+export PATH=$UniSparse_PATH/UniSparse/build/bin:$PATH
+
+