dftfe2.rc

#!/bin/rc
# Installation script for DFT-FE and its dependencies

. ./env2/env.rc

# Install alglib, libxc, spglib and p4est using the typical route (cf. manual)
fn install_alglib {
  cd $WD/src
  if(test ! -d alglib-cpp) {
    wget 'https://www.alglib.net/translator/re/alglib-3.20.0.cpp.gpl.tgz'
    tar xzf alglib-3.20.0.cpp.gpl.tgz
    rm -f alglib-3.20.0.cpp.gpl.tgz
  }
  cd alglib-cpp/src
  # TODO: change to CC (in case of linking error)
  g++ -o libAlglib.so -shared -fPIC -O2 *.cpp

  mkdir -p $INST/lib/alglib
  mv libAlglib.so $INST/lib/alglib/
  cp *.h $INST/lib/alglib/

  cd $WD
}

fn install_libxc {
  cd $WD/src
  if(test ! -d libxc-6.2.2) {
    wget 'https://gitlab.com/libxc/libxc/-/archive/6.2.2/libxc-6.2.2.tar.gz'
    tar xzf 'libxc-6.2.2.tar.gz'
    rm 'libxc-6.2.2.tar.gz'
  }
  cd libxc-6.2.2
  rm -fr build
  mkdir build && cd build
  cmake '-DCMAKE_C_COMPILER=cc' \
        '-DCMAKE_C_FLAGS=-O2 -fPIC' \
        '-DCMAKE_CXX_COMPILER=CC' \
        '-DCMAKE_CXX_FLAGS=-O2 -fPIC' \
        '-DCMAKE_INSTALL_PREFIX='$INST \
        '-DBUILD_SHARED_LIBS=ON' \
        '-DBUILD_TESTING=OFF' \
        ..
  make -j16
  make install
  cd $WD
}


fn install_dftd4 {
  cd $WD/src
  if(test ! -d dftd4-3.6.0) {
    wget 'https://github.com/dftd4/dftd4/archive/refs/tags/v3.6.0.tar.gz'
    tar xzf v3.6.0.tar.gz
    rm v3.6.0.tar.gz
  }
  cd dftd4-3.6.0
  rm -fr build
  mkdir build && cd build
  cmake '-DCMAKE_Fortran_COMPILER=ftn' \
        '-DCMAKE_C_COMPILER=cc' \
        '-DBLAS_LIBRARIES='$OLCF_OPENBLAS_ROOT/lib/libopenblas.so \
        '-DLAPACK_LIBRARIES='$OLCF_OPENBLAS_ROOT/lib/libopenblas.so \
        '-DBUILD_SHARED_LIBS=ON' \
        '-DCMAKE_INSTALL_PREFIX='$INST \
        '-DWITH_OpenMP=OFF' \
        ..
  make -j16
  make install
  cd $WD
}

fn install_spglib {
  cd $WD/src
  if(test ! -d spglib) {
    git clone 'https://github.com/atztogo/spglib.git'
    rc -c 'cd spglib && git checkout 02159eef6e7349535049a43fe2272bb634c77945'
  }
  cd spglib
  rm -fr build
  mkdir -p build && cd build
  cmake '-DCMAKE_CXX_COMPILER=CC' \
        '-DCMAKE_C_COMPILER=cc' \
        '-DCMAKE_INSTALL_PREFIX='$INST \
        ..
  make -j16
  make install
  cd $WD
}

fn install_p4est{
  cd $WD/src
  rm -rf p4est
  mkdir p4est
  cd p4est
  wget 'https://p4est.github.io/release/p4est-2.8.6.tar.gz'
  wget 'https://raw.githubusercontent.com/dftfeDevelopers/dftfe/manual/p4est-setup-craycompiler.sh'
  chmod u+x p4est-setup-craycompiler.sh
  ./p4est-setup-craycompiler.sh p4est-2.8.6.tar.gz $INST
  cd $WD
 }


#fn install_p4est{
#  cd $WD/src
#  rm -rf p4est
#  mkdir p4est
#  cd p4est
#  wget 'https://github.com/p4est/p4est.github.io/raw/master/release/p4est-2.2.tar.gz'
#  wget 'https://raw.githubusercontent.com/dftfeDevelopers/dftfe/manual/p4est-setup.sh'
#  chmod u+x p4est-setup.sh
#  ./p4est-setup.sh p4est-2.2.tar.gz $INST
#  cd $WD
# }

# Install netlib-scalapack 2.2.0 version linking to openblas
# note that the openblas (sourced via module) provides lapack
fn install_scalapack {
  cd $WD/src
  if(! -d scalapack-2.2.0) {
    wget 'https://github.com/Reference-ScaLAPACK/scalapack/archive/refs/tags/v2.2.0.tar.gz'
    tar xzf v2.2.0.tar.gz
    rm -f v2.2.0.tar.gz
  }
  cd scalapack-2.2.0
  
  mkdir build && cd build
  cmake \
    '-DBUILD_SHARED_LIBS=ON' \
    '-DBUILD_STATIC_LIBS=OFF' \
    '-DBUILD_TESTING=OFF' \
    '-DCMAKE_C_COMPILER=cc' \
    '-DCMAKE_Fortran_COMPILER=ftn' \
    '-DCMAKE_C_FLAGS=-fPIC -march=znver3' \
    '-DCMAKE_Fortran_FLAGS=-fPIC -march=znver3 -fallow-argument-mismatch' \
    '-DUSE_OPTIMIZED_LAPACK_BLAS=ON' \
    '-DCMAKE_INSTALL_PREFIX='$INST \
    ..
  make -j16
  make install
  cd $WD
}

# Install RCCL (https://github.com/ROCmSoftwarePlatform/rccl)
#    cmake -DCMAKE_CXX_COMPILER=${ROCM_PATH}/bin/hipcc -DCMAKE_CXX_FLAGS="-I${MPICH_DIR}/include -I${ROCM_PATH}/include" -DCMAKE_SHARED_LINKER_FLAGS="-L${ROCM_PATH}/lib -lamdhip64 -L${MPICH_DIR}/lib -lmpi -L${CRAY_MPICH_ROOTDIR}/gtl/lib -lmpi_gtl_hsa" -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$ROCM_PATH;${MPICH_DIR}" ../

# Install RCCL OFI plugin
fn install_ofi_rccl {
  cd $WD/src
  if(test ! -d aws-ofi-rccl) {
    git clone https://github.com/ROCmSoftwarePlatform/aws-ofi-rccl
    @ { cd aws-ofi-rccl
        # git checkout cxi
        module load libtool
        bash ./autogen.sh
      }
  }
  cd aws-ofi-rccl
  rm -fr build
  mkdir build && cd build

  ROCM=$OLCF_ROCM_ROOT
  libpre = (-L -Wl,-rpath-link,)
  ldflags = ($libpre^$ROCM/lib $libpre^$CRAY_MPICH_ROOTDIR/gtl/lib -lmpi_gtl_hsa)
  headers = (/opt/cray/libfabric/1.15.2.0 $ROCM/rccl $ROCM $MPICH_DIR)
  cflags = -I ^ $headers ^ /include

  GCC=hipcc \
  CC=hipcc \
  CXX=hipcc \
  CFLAGS=$"cflags \
  LDFLAGS=$"ldflags \
  ../configure \
      --with-libfabric=/opt/cray/libfabric/1.15.2.0 \
      --with-hip=$ROCM/hip \
      --with-rccl=$ROCM \
      --with-mpi=$MPICH_DIR \
      --prefix=$INST \
      --build=amd64-linux-gnu \
      --target=amd64-linux-gnu \
      --host=amd64-linux-gnu
  make -j8
  make install
}

# Install ELPA latest version (elpa-2024.03.001)
fn install_elpa_cpu {
    cd $WD/src
    if(test ! -d elpa) {
        ver=2024.03.001
        wget https://elpa.mpcdf.mpg.de/software/tarball-archive/Releases/$ver/elpa-$ver.tar.gz
        tar xzf elpa-$ver.tar.gz
        mv elpa-$ver elpa
        rm -f elpa-$ver.tar.gz
    }
    cd elpa
  
    LD_LIBRARY_PATH = $LD_LIBRARY_PATH:$INST/lib
    LD_LIBRARY_PATH = $LD_LIBRARY_PATH:$INST/lib64

    cflags = ('-march=znver3' -fPIC -O2 -I$MPICH_DIR/include)
    libs = (-L$MPICH_DIR/lib -lmpi $CRAY_XPMEM_POST_LINK_OPTS -lxpmem $PE_MPICH_GTL_DIR_amd_gfx90a $PE_MPICH_GTL_LIBS_amd_gfx90a -L$INST/lib -lscalapack -L$OLCF_OPENBLAS_ROOT/lib -lopenblas -L$INST/lib64)
    cflags=$"cflags
    libs=$"libs
    rm -fr build
    mkdir build && cd build
    ../configure 'CXX=CC' 'CC=cc' 'FC=ftn' \
               'FCFLAGS=-march=znver3 -O2 -fPIC' \
               'CFLAGS='$cflags \
               'CXXFLAGS=-std=c++17 '$cflags \
               '--prefix='$INST \
               'LIBS='$libs \
               --disable-avx512 '--enable-c-tests=no' \
               '--enable-option-checking=fatal' --enable-shared \
               '--enable-cpp-tests=no'
    make -j16
    make install
    cd $WD
}

# Install ELPA latest version (elpa-2024.03.001) with AMD GPU support
fn install_elpa {
    cd $WD/src
    if(test ! -d elpa) {
        ver=2024.03.001
        wget https://elpa.mpcdf.mpg.de/software/tarball-archive/Releases/$ver/elpa-$ver.tar.gz
        tar xzf elpa-$ver.tar.gz
        mv elpa-$ver elpa
        rm -f elpa-$ver.tar.gz
        rc -c 'cd elpa && patch -p1 <'$WD/src/elpa-$ver.patch
    }
    cd elpa

    LD_LIBRARY_PATH = $LD_LIBRARY_PATH:$INST/lib
    LD_LIBRARY_PATH = $LD_LIBRARY_PATH:$INST/lib64
    LD_LIBRARY_PATH = $LD_LIBRARY_PATH:$ROCM_PATH/lib:$ROCM_PATH/hip/lib:$ROCM_PATH/lib:$ROCM_PATH/rocblas/lib

    cflags = ('-march=znver3' -fPIC -O2 -I$ROCM_PATH/include -I$ROCM_PATH/hip/include -I$ROCM_PATH/hipcub/include -I$ROCM_PATH/rocblas/include '--amdgpu-target=gfx90a' -I$MPICH_DIR/include)
    libs = (-L$ROCM_PATH/lib -lamdhip64 -L$ROCM_PATH/rocblas/lib -lrocblas -L$MPICH_DIR/lib -lmpi $CRAY_XPMEM_POST_LINK_OPTS -lxpmem $PE_MPICH_GTL_DIR_amd_gfx90a $PE_MPICH_GTL_LIBS_amd_gfx90a -L$INST/lib -lscalapack -L$OLCF_OPENBLAS_ROOT/lib -lopenblas -L$INST/lib64)
    cflags=$"cflags
    libs=$"libs
    rm -fr build
    mkdir build && cd build
    ../configure 'CXX=hipcc' 'CC=hipcc' 'FC=ftn' \
               'FCFLAGS=-march=znver3 -O2 -fPIC' \
               'CFLAGS='$cflags \
               'CXXFLAGS=-std=c++17 '$cflags \
               --enable-amd-gpu \
               '--prefix='$INST \
               'LIBS='$libs \
               --disable-sse --disable-sse-assembly --disable-avx \
               --disable-avx2 --disable-avx512 '--enable-c-tests=no' \
               '--enable-option-checking=fatal' --enable-shared \
               '--enable-cpp-tests=no' --enable-hipcub
#              '--enable-gpu-streams=amd'
    make -j16
    make install
    cd $WD
}


fn install_kokkos {
  cd $WD/src
  if(test ! -d kokkos-4.3.00) {
    wget 'https://github.com/kokkos/kokkos/archive/refs/tags/4.3.00.tar.gz'
    tar xzvf '4.3.00.tar.gz'
    rm '4.3.00.tar.gz'
  }
  cd kokkos-4.3.00
  rm -fr build
  mkdir build && cd build
  cmake '-DCMAKE_C_COMPILER=cc' \
        '-DCMAKE_C_FLAGS=-O2 -fPIC' \
        '-DCMAKE_CXX_COMPILER=CC' \
        '-DCMAKE_CXX_FLAGS=-O2 -fPIC' \
        '-DCMAKE_INSTALL_PREFIX='$INST \
        ..
  make -j16
  make install
  cd $WD
}


# Install latest release dealii from https://github.com/dealii/dealii

fn install_dealii {
  cd $WD/src
  ver=9.5.2
  if(test ! -d dealii-$ver) {
      wget https://github.com/dealii/dealii/releases/download/v$ver/dealii-$ver.tar.gz
      tar xzf dealii-$ver.tar.gz 
  }
  #if(test ! -d dealii) {
  #  git clone https://github.com/dealii/dealii.git
  #}
  cd dealii-$ver
  #cd dealii
  rm -fr build
  mkdir build && cd build
  cmake '-DCMAKE_CXX_STANDARD=17' \
        '-DCMAKE_CXX_FLAGS=-march=native -std=c++17' \
        '-DCMAKE_C_FLAGS=-march=native' \
        '-DDEAL_II_ALLOW_PLATFORM_INTROSPECTION=OFF' \
        '-DDEAL_II_WITH_TASKFLOW=OFF' \
        '-DKOKKOS_DIR='$INST \
        '-DCMAKE_BUILD_TYPE=Release' \
        '-DDEAL_II_CXX_FLAGS_RELEASE=-O2' \
        '-DCMAKE_C_COMPILER=cc' \
        '-DCMAKE_CXX_COMPILER=CC' \
        '-DCMAKE_Fortran_COMPILER=ftn' \
        '-DDEAL_II_WITH_TBB=OFF' \
        '-DDEAL_II_COMPONENT_EXAMPLES=OFF' \
        '-DDEAL_II_WITH_MPI=ON' \
        '-DDEAL_II_WITH_64BIT_INDICES=ON' \
        '-DP4EST_DIR='$INST \
        '-DDEAL_II_WITH_LAPACK=ON' \
        '-DLAPACK_DIR='$OLCF_OPENBLAS_ROOT';'$INST \
        '-DLAPACK_FOUND=true' \
        '-DLAPACK_LIBRARIES='$OLCF_OPENBLAS_ROOT/lib/libopenblas.so \
        '-DCMAKE_INSTALL_PREFIX='$INST \
        ..
  # may add to lapack libraries ';'$INST/lib64/liblapack.so \
  make -j16 || echo 1
  make install
  mv $INST/ ^ (detailed.log summary.log README.md LICENSE.md) $INST/share/deal.II/
  cd $WD
}


fn enter_venv {
  if(! test -d $INST/venv ) {
    python3 -m venv $INST/venv
  }
  . $WD/bin/activate $INST/venv
}

fn install_torch {
  PYTORCH_VERSION = 1.13.1
  PYTORCH_URL = https://github.com/pytorch/pytorch

  cd $WD/src
  enter_venv
  pip install pyyaml pandas matplotlib scikit-learn pybind11 \
      typing_extensions six sympy filelock jinja2 networkx
  if(! test -d pytorch) {
      git clone --recursive $PYTORCH_URL
      @ {cd pytorch && git checkout v$$PYTORCH_VERSION}
  }
  cd pytorch
  CMAKE_PREFIX_PATH=$INST
  CMAKE_CXX_FLAGS='-march=znver3'
  CXX = `{which g++} # note: CC adds mpi linking info.
  CC = `{which gcc}
  BLAS = OpenBLAS
  OpenBLAS_HOME = $OLCF_OPENBLAS_ROOT
  USE_CUDA = 0
  USE_ROCM = 0
  USE_CUDNN = 0
  USE_NCCL = 0
  USE_RCCL = 0
  USE_MKLDNN = 0
  USE_DISTRIBUTED = 0
  USE_OPENMP = 0
  PYTORCH_BUILD_VERSION=$PYTORCH_VERSION # to prevent dependency issues
  PYTORCH_BUILD_NUMBER=1
  CMAKE_BUILD_TYPE=Release

  python setup.py build -j16 --cmake-only
  cd build
  #cmake -DBUILD_CUSTOM_PROTOBUF=0 ..
  cmake --build . -j16 --target install
  cd ..
  python3 setup.py install

  cd $WD
}

fn compile_dftfe_debug{
  branch = migrateLatestDealii
  cd $WD/src
  if(! test -d dftfeDebug) {
    git clone -b $branch https://dsambit@bitbucket.org/dftfedevelopers/dftfe.git dftfeDebug
  } if not {
    cd dftfeDebug
    git fetch
    git checkout $branch
    git pull
  }
  cd dftfeDebug
  rm -fr build
  SRC = `{pwd}
  mkdir build && cd build
  #cd build

  dealiiDir=$INST
  alglibDir=$INST/lib/alglib
  libxcDir=$INST
  spglibDir=$INST
  xmlIncludeDir=/usr/include/libxml2
  xmlLibDir=/usr/lib64

  ELPA_PATH=$INST
  DCCL_PATH=$ROCM_PATH/include/rccl
  TORCH_PATH=$INST/venv/lib/python3.9/site-packages

  #Compiler options and flags
  cxx_compiler = CC
  cxx_flags = '-march=znver3 -fPIC -I'$MPICH_DIR'/include -I'$ROCM_PATH'/include -I'$ROCM_PATH'/include/hipblas'
  cxx_flagsRelease = -O2 #sets DCMAKE_CXX_FLAGS_RELEASE
  device_flags = '-march=znver3 -O2 -munsafe-fp-atomics -I'$MPICH_DIR'/include -I'$ROCM_PATH'/include -I'$ROCM_PATH'/include/hipblas -I'$ROCM_PATH'/include/rocblas'
  device_architectures = gfx90a

  # HIGHERQUAD_PSP option compiles with default or higher order
  # quadrature for storing pseudopotential data
  # ON is recommended for MD simulations with hard pseudopotentials

  # build type: "Release" or "Debug"
  build_type=Release
  out=`{echo $build_type | tr '[:upper:]' '[:lower:]'}

  # Note: MDI_PATH is not used by project.
  cmake_flags = ( \
      -DCMAKE_CXX_STANDARD=17 \
      -DCMAKE_CXX_COMPILER=$cxx_compiler \
      -DCMAKE_CXX_FLAGS=$cxx_flags \
      -DCMAKE_CXX_FLAGS_RELEASE=$cxx_flagsRelease \
      -DCMAKE_BUILD_TYPE=$build_type \
      -DDEAL_II_DIR=$dealiiDir \
      -DALGLIB_DIR=$alglibDir \
      -DLIBXC_DIR=$libxcDir \
      -DSPGLIB_DIR=$spglibDir \
      -DXML_LIB_DIR=$xmlLibDir \
      -DXML_INCLUDE_DIR=$xmlIncludeDir \
      -DWITH_MDI=OFF \
      -DMDI_PATH= \
      -DWITH_DCCL=ON \
      -DWITH_TORCH=OFF \
      -DCMAKE_PREFIX_PATH=$ELPA_PATH';'$DCCL_PATH';'$TORCH_PATH \
      -DWITH_GPU=ON \
      -DGPU_LANG=hip \
      -DGPU_VENDOR=amd \
      -DWITH_GPU_AWARE_MPI=ON \
      -DCMAKE_HIP_FLAGS=$device_flags \
      -DCMAKE_HIP_ARCHITECTURES=$device_architectures \
      -DWITH_TESTING=OFF \
      -DMINIMAL_COMPILE=OFF \
      '-DCMAKE_SHARED_LINKER_FLAGS=-L'$ROCM_PATH'/lib -lamdhip64 -L'$MPICH_DIR'/lib -lmpi -L'$CRAY_XPMEM_POST_LINK_OPTS' -lxpmem '$PE_MPICH_GTL_DIR_amd_gfx90a' '$PE_MPICH_GTL_LIBS_amd_gfx90a \
      -DHIGHERQUAD_PSP=OFF \
  )

  fn cmake_real {
    mkdir -p real && cd real
    cmake $cmake_flags \
      -DWITH_COMPLEX=OFF \
      $1
    make -j8
    cd ..
  }

  fn cmake_cplx {
    mkdir -p complex && cd complex
    cmake $cmake_flags \
      -DWITH_COMPLEX=ON \
      $1
    make -j8
    cd ..
  }

  mkdir -p $out
  cd $out

  echo 'Building Real executable in $build_type mode...'
  cmake_real $SRC

  echo 'Building Complex executable in $build_type mode...'
  cmake_cplx $SRC

  echo 'Build complete.'
  cd $WD
}



fn compile_dftfe{
  cd $WD/src
  branch = publicGithubDevelop
  if(! test -d dftfe) {
    git clone -b $branch https://github.com/dftfeDevelopers/dftfe.git dftfe
  } if not {
    cd dftfe
    git fetch
    git checkout $branch
    git pull
  }
  cd dftfe
  rm -fr build
  SRC = `{pwd}
  mkdir build && cd build
  #cd build

  dealiiDir=$INST
  alglibDir=$INST/lib/alglib
  libxcDir=$INST
  spglibDir=$INST
  xmlIncludeDir=/usr/include/libxml2
  xmlLibDir=/usr/lib64

  ELPA_PATH=$INST
  DCCL_PATH=$ROCM_PATH/include/rccl
  TORCH_PATH=$INST/venv/lib/python3.9/site-packages

  #Compiler options and flags
  cxx_compiler = CC
  cxx_flags = '-march=znver3 -fPIC -I'$MPICH_DIR'/include -I'$ROCM_PATH'/include -I'$ROCM_PATH'/include/hipblas'
  cxx_flagsRelease = -O2 #sets DCMAKE_CXX_FLAGS_RELEASE
  device_flags = '-march=znver3 -O2 -munsafe-fp-atomics -I'$MPICH_DIR'/include -I'$ROCM_PATH'/include -I'$ROCM_PATH'/include/hipblas -I'$ROCM_PATH'/include/rocblas'
  device_architectures = gfx90a

  # HIGHERQUAD_PSP option compiles with default or higher order
  # quadrature for storing pseudopotential data
  # ON is recommended for MD simulations with hard pseudopotentials

  # build type: "Release" or "Debug"
  build_type=Release
  out=`{echo $build_type | tr '[:upper:]' '[:lower:]'}

  # Note: MDI_PATH is not used by project.
  cmake_flags = ( \
      -DCMAKE_CXX_STANDARD=17 \
      -DCMAKE_CXX_COMPILER=$cxx_compiler \
      -DCMAKE_CXX_FLAGS=$cxx_flags \
      -DCMAKE_CXX_FLAGS_RELEASE=$cxx_flagsRelease \
      -DCMAKE_BUILD_TYPE=$build_type \
      -DDEAL_II_DIR=$dealiiDir \
      -DALGLIB_DIR=$alglibDir \
      -DLIBXC_DIR=$libxcDir \
      -DSPGLIB_DIR=$spglibDir \
      -DXML_LIB_DIR=$xmlLibDir \
      -DXML_INCLUDE_DIR=$xmlIncludeDir \
      -DWITH_MDI=OFF \
      -DMDI_PATH= \
      -DWITH_DCCL=OFF \
      -DWITH_TORCH=OFF \
      -DCMAKE_PREFIX_PATH=$ELPA_PATH';'$DCCL_PATH';'$TORCH_PATH \
      -DWITH_GPU=ON \
      -DGPU_LANG=hip \
      -DGPU_VENDOR=amd \
      -DWITH_GPU_AWARE_MPI=OFF \
      -DCMAKE_HIP_FLAGS=$device_flags \
      -DCMAKE_HIP_ARCHITECTURES=$device_architectures \
      -DWITH_TESTING=OFF \
      -DMINIMAL_COMPILE=OFF \
      '-DCMAKE_SHARED_LINKER_FLAGS=-L'$ROCM_PATH'/lib -lamdhip64 -L'$MPICH_DIR'/lib -lmpi -L'$CRAY_XPMEM_POST_LINK_OPTS' -lxpmem '$PE_MPICH_GTL_DIR_amd_gfx90a' '$PE_MPICH_GTL_LIBS_amd_gfx90a \      
      -DHIGHERQUAD_PSP=ON \
  )  

  fn cmake_real {
    mkdir -p real && cd real
    cmake $cmake_flags \
      -DWITH_COMPLEX=OFF \
      $1
    make -j8
    cd ..
  }

  fn cmake_cplx {
    mkdir -p complex && cd complex
    cmake $cmake_flags \
      -DWITH_COMPLEX=ON \
      $1
    make -j8
    cd ..
  }

  mkdir -p $out
  cd $out

  echo 'Building Real executable in $build_type mode...'
  cmake_real $SRC

  echo 'Building Complex executable in $build_type mode...'
  cmake_cplx $SRC

  echo 'Build complete.'
  cd $WD
}