Errors while installing ATC-package -- SUMMIT-OLCF

Hello all,

I was trying to install recent stable version of LAMMPS 29Sept21 on Summit-OLCF.
https://docs.olcf.ornl.gov/systems/summit_user_guide.html?highlight=charge%20queue#system-overview

Operating system

$ uname -r
4.18.0-193.46.1.el8_2.ppc64le
$ lsb_release -a
LSB Version:	:core-4.1-noarch:core-4.1-ppc64le
Distributor ID:	RedHatEnterprise
Description:	Red Hat Enterprise Linux release 8.2 (Ootpa)
Release:	8.2
Codename:	Ootpa

cmake

cmake --version
cmake version 3.20.2

CMake suite maintained and supported by Kitware (kitware.com/cmake).

Kokkos_ARCH_VOLTA70 - NVIDIA_VOLTA70 GPUS ARC

nvcc --version 
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2020 NVIDIA Corporation
Built on Wed_Jul_22_19:08:50_PDT_2020
Cuda compilation tools, release 11.0, V11.0.221
Build cuda_11.0_bu.TC445_37.28845127_0
 gcc --version
gcc (GCC) 9.3.0
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

installation file will have following packages

module load gcc/9.3.0 cmake cuda fftw git kokkos/3.4.00-cudalambda
module load netlib-lapack
export CC=$(which gcc)
export CXX=$(which g++)

cmake -DBUILD_MPI=yes -DBUILD_OMP=yes -DBUILD_LIBS=yes -DBUILD_SHARED_LIBS=yes -DFFT=KISS -DCMAKE_C_COMPILER=$(which gcc)  -DCMAKE_CXX_COMPILER=~/lammps/lib/kokkos/bin/nvcc_wrapper  -DWITH_PNG=no -DWITH_JPEG=no -DPKG_CLASS2=yes -DPKG_GRANULAR=yes -DPKG_KOKKOS=yes -DPKG_KSPACE=yes -DPKG_MANYBODY=yes -DPKG_MC=yes -DPKG_MISC=yes -DPKG_MOLECULE=yes -DPKG_PYTHON=yes -DPKG_QEQ=yes -DPKG_RIGID=yes -DPKG_ATC=yes -DPKG_REAXFF=yes -DPKG_EXTRA-COMPUTE=yes -DPKG_EXTRA-DUMP=yes -DPKG_EXTRA-FIX=yes -DPKG_EXTRA-MOLECULE=yes -DPKG_EXTRA-PAIR=yes -DKokkos_CXX_STANDARD=14 -DKokkos_ENABLE_OPENMP=yes  -DKokkos_ENABLE_CUDA=yes -DKokkos_ARCH_POWER9=ON -DKokkos_ARCH_VOLTA70=ON  ../cmake
cmake --build .

However, I was getting lot of errors with ATC package

...
/lammps/lib/atc/PerAtomQuantity.h(502): warning: overloaded virtual function "ATC::MatrixDependencyManager<T, U>::operator-= [with T=ATC_matrix::DenseMatrix, U=int]" is only partially overridden in class "ATC::ProtectedAtomQuantity<int>"
          detected during instantiation of class "ATC::ProtectedAtomQuantity<T> [with T=int]" 
/lammps/lib/atc/PerAtomQuantity.h(887): warning: overloaded virtual function "ATC::MatrixDependencyManager<T, U>::operator= [with T=ATC_matrix::DiagonalMatrix, U=double]" is only partially overridden in class "ATC::PerAtomDiagonalMatrix<double>"
          detected during:
            instantiation of class "ATC::PerAtomDiagonalMatrix<T> [with T=double]" 
(1019): here
            instantiation of class "ATC::AtcAtomDiagonalMatrix<T> [with T=double]" 
(1052): here
            instantiation of class "ATC::ProtectedAtomDiagonalMatrix<T> [with T=double]" 
/lammps/lib/atc/PerAtomQuantity.h(887): warning: overloaded virtual function "ATC::MatrixDependencyManager<T, U>::operator+= [with T=ATC_matrix::DiagonalMatrix, U=double]" is only partially overridden in class "ATC::PerAtomDiagonalMatrix<double>"
          detected during:
            instantiation of class "ATC::PerAtomDiagonalMatrix<T> [with T=double]" 
(1019): here
            instantiation of class "ATC::AtcAtomDiagonalMatrix<T> [with T=double]" 
(1052): here
            instantiation of class "ATC::ProtectedAtomDiagonalMatrix<T> [with T=double]" 

Is there anything wrong with install script?

I only see warnings and no errors here. The ATC code has not seen significant updates for several years. So with more modern and more strict compilers, some more warnings are expected.

Everything else installing fine, except ATC-warnings.