From 439702f44333895abd3b0592a6e26d8400a12785 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ole=20Sch=C3=BCtt?= <ole.schuett@cp2k.org>
Date: Wed, 3 Mar 2021 23:21:59 +0100
Subject: [PATCH] Toolchain: Do not cache NPROCS

---
 tools/toolchain/install_cp2k_toolchain.sh           | 7 ++-----
 tools/toolchain/scripts/common_vars.sh              | 3 ---
 tools/toolchain/scripts/generate_arch_files.sh      | 2 +-
 tools/toolchain/scripts/stage0/install_cmake.sh     | 4 ++--
 tools/toolchain/scripts/stage0/install_gcc.sh       | 8 ++++----
 tools/toolchain/scripts/stage1/install_mpich.sh     | 2 +-
 tools/toolchain/scripts/stage1/install_openmpi.sh   | 4 ++--
 tools/toolchain/scripts/stage1/install_valgrind.sh  | 4 ++--
 tools/toolchain/scripts/stage2/install_fftw.sh      | 2 +-
 tools/toolchain/scripts/stage2/install_openblas.sh  | 6 +++---
 tools/toolchain/scripts/stage2/install_reflapack.sh | 2 +-
 tools/toolchain/scripts/stage3/install_libint.sh    | 2 +-
 tools/toolchain/scripts/stage3/install_libxc.sh     | 2 +-
 tools/toolchain/scripts/stage4/install_cosma.sh     | 6 +++---
 tools/toolchain/scripts/stage4/install_libxsmm.sh   | 4 ++--
 tools/toolchain/scripts/stage4/install_scalapack.sh | 2 +-
 tools/toolchain/scripts/stage5/install_elpa.sh      | 2 +-
 tools/toolchain/scripts/stage5/install_ptscotch.sh  | 2 +-
 tools/toolchain/scripts/stage5/install_superlu.sh   | 2 +-
 tools/toolchain/scripts/stage6/install_gsl.sh       | 4 ++--
 tools/toolchain/scripts/stage6/install_plumed.sh    | 2 +-
 tools/toolchain/scripts/stage7/install_hdf5.sh      | 4 ++--
 tools/toolchain/scripts/stage7/install_libvdwxc.sh  | 2 +-
 tools/toolchain/scripts/stage7/install_libvori.sh   | 6 +++---
 tools/toolchain/scripts/stage7/install_spglib.sh    | 2 +-
 tools/toolchain/scripts/stage8/install_sirius.sh    | 4 ++--
 tools/toolchain/scripts/stage8/install_spfft.sh     | 6 +++---
 tools/toolchain/scripts/stage8/install_spla.sh      | 6 +++---
 tools/toolchain/scripts/tool_kit.sh                 | 4 +++-
 29 files changed, 51 insertions(+), 55 deletions(-)

diff --git a/tools/toolchain/install_cp2k_toolchain.sh b/tools/toolchain/install_cp2k_toolchain.sh
index 896ed08f41..0e2f4726d9 100755
--- a/tools/toolchain/install_cp2k_toolchain.sh
+++ b/tools/toolchain/install_cp2k_toolchain.sh
@@ -338,9 +338,6 @@ else
   export MPI_MODE=no
 fi
 
-# number of processors to use
-export NPROCS=$(get_nprocs)
-
 # default enable options
 dry_run=__FALSE__
 enable_tsan=__FALSE__
@@ -384,7 +381,7 @@ while [ $# -ge 1 ]; do
   case $1 in
     -j)
       shift
-      export NPROCS=$1
+      export NPROCS_OVERWRITE=$1
       ;;
     --no-check-certificate)
       export DOWNLOADER_FLAGS="-n"
@@ -865,7 +862,7 @@ fi
 # Installing tools required for building CP2K and associated libraries
 # ------------------------------------------------------------------------
 
-echo "Compiling with $NPROCS processes."
+echo "Compiling with $(get_nprocs) processes."
 
 # set environment for compiling compilers and tools required for CP2K
 # and libraries it depends on
diff --git a/tools/toolchain/scripts/common_vars.sh b/tools/toolchain/scripts/common_vars.sh
index d2c405be68..71a2de77e4 100644
--- a/tools/toolchain/scripts/common_vars.sh
+++ b/tools/toolchain/scripts/common_vars.sh
@@ -22,9 +22,6 @@ SYS_LIB_PATH=${SYS_LIB_PATHS:-'/usr/local/lib64:/usr/local/lib:/usr/lib64:/usr/l
 INCLUDE_PATHS=${INCLUDE_PATHS:-"CPATH SYS_INCLUDE_PATH"}
 LIB_PATHS=${LIB_PATHS:-'LD_LIBRARY_PATH LIBRARY_PATH LD_RUN_PATH SYS_LIB_PATH'}
 
-# number of processors
-NPROCS=${NPROCS:-1}
-
 # mode flags
 ENABLE_OMP=${ENABLE_OMP:-"__TRUE__"}
 ENABLE_TSAN=${ENABLE_TSAN:-"__FALSE__"}
diff --git a/tools/toolchain/scripts/generate_arch_files.sh b/tools/toolchain/scripts/generate_arch_files.sh
index 962475b4b7..d1a8264db7 100755
--- a/tools/toolchain/scripts/generate_arch_files.sh
+++ b/tools/toolchain/scripts/generate_arch_files.sh
@@ -236,7 +236,7 @@ compiled with it you will first need to execute at the prompt:
   source ${SETUPFILE}
 To build CP2K you should change directory:
   cd cp2k/
-  make -j ${NPROCS} ARCH=local VERSION="${arch_vers}"
+  make -j $(get_nprocs) ARCH=local VERSION="${arch_vers}"
 
 arch files for GPU enabled CUDA versions are named "local_cuda.*"
 arch files for valgrind versions are named "local_valgrind.*"
diff --git a/tools/toolchain/scripts/stage0/install_cmake.sh b/tools/toolchain/scripts/stage0/install_cmake.sh
index eb0c221e83..e27c2efe99 100755
--- a/tools/toolchain/scripts/stage0/install_cmake.sh
+++ b/tools/toolchain/scripts/stage0/install_cmake.sh
@@ -41,8 +41,8 @@ case "$with_cmake" in
         cp CMakeLists.txt CMakeLists.txt.orig
         sed -i 's/option(BUILD_CursesDialog "Build the CMake Curses Dialog ccmake" ON)/option(BUILD_CursesDialog "Build the CMake Curses Dialog ccmake" OFF)/g' CMakeLists.txt
       fi
-      ./bootstrap --prefix="${pkg_install_dir}" --parallel="${NPROCS}" -- -DCMAKE_USE_OPENSSL=OFF > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
+      ./bootstrap --prefix="${pkg_install_dir}" --parallel="$(get_nprocs)" -- -DCMAKE_USE_OPENSSL=OFF > configure.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
       make install > install.log 2>&1
       cd ..
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage0/$(basename ${SCRIPT_NAME})"
diff --git a/tools/toolchain/scripts/stage0/install_gcc.sh b/tools/toolchain/scripts/stage0/install_gcc.sh
index 7138eaa6c0..f231d54319 100755
--- a/tools/toolchain/scripts/stage0/install_gcc.sh
+++ b/tools/toolchain/scripts/stage0/install_gcc.sh
@@ -62,11 +62,11 @@ case "$with_gcc" in
         --enable-lto \
         --enable-plugins \
         > configure.log 2>&1
-      make -j $NPROCS \
+      make -j $(get_nprocs) \
         CFLAGS="-fPIC $CFLAGS" \
         CXXFLAGS="-fPIC $CXXFLAGS" \
         > make.log 2>&1
-      make -j $NPROCS install > install.log 2>&1
+      make -j $(get_nprocs) install > install.log 2>&1
       # thread sanitizer
       if [ $ENABLE_TSAN = "__TRUE__" ]; then
         # now the tricky bit... we need to recompile in particular
@@ -78,7 +78,7 @@ case "$with_gcc" in
         # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55374#c10
         cd x86_64*/libgfortran
         make clean > clean.log 2>&1
-        make -j $NPROCS \
+        make -j $(get_nprocs) \
           CFLAGS="-std=gnu99 -g -O2 -fsanitize=thread " \
           FCFLAGS="-g -O2 -fsanitize=thread" \
           CXXFLAGS="-std=gnu99 -g -O2 -fsanitize=thread " \
@@ -87,7 +87,7 @@ case "$with_gcc" in
         make install > install.log 2>&1
         cd ../libgomp
         make clean > clean.log 2>&1
-        make -j $NPROCS \
+        make -j $(get_nprocs) \
           CFLAGS="-std=gnu99 -g -O2 -fsanitize=thread " \
           FCFLAGS="-g -O2 -fsanitize=thread" \
           CXXFLAGS="-std=gnu99 -g -O2 -fsanitize=thread " \
diff --git a/tools/toolchain/scripts/stage1/install_mpich.sh b/tools/toolchain/scripts/stage1/install_mpich.sh
index 885e32a921..6ac39ac61d 100755
--- a/tools/toolchain/scripts/stage1/install_mpich.sh
+++ b/tools/toolchain/scripts/stage1/install_mpich.sh
@@ -46,7 +46,7 @@ case "$with_mpich" in
       #   https://github.com/pmodels/mpich/issues/4300
       ("${FC}" --version | grep -Eq 'GNU.+\s10\.') && compat_flag="-fallow-argument-mismatch" || compat_flag=""
       ./configure --prefix="${pkg_install_dir}" --libdir="${pkg_install_dir}/lib" MPICC="" FFLAGS="${FCFLAGS} ${compat_flag}" FCFLAGS="${FCFLAGS} ${compat_flag}" --without-x --enable-gl=no > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
       make install > install.log 2>&1
       cd ..
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage1/$(basename ${SCRIPT_NAME})"
diff --git a/tools/toolchain/scripts/stage1/install_openmpi.sh b/tools/toolchain/scripts/stage1/install_openmpi.sh
index 14766da191..9e88098dfd 100755
--- a/tools/toolchain/scripts/stage1/install_openmpi.sh
+++ b/tools/toolchain/scripts/stage1/install_openmpi.sh
@@ -51,8 +51,8 @@ case "$with_openmpi" in
         CFLAGS="${CFLAGS} -fgnu89-inline"
       fi
       ./configure --prefix=${pkg_install_dir} --libdir="${pkg_install_dir}/lib" --enable-mpi1-compatibility CFLAGS="${CFLAGS}" > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
-      make -j $NPROCS install > install.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
+      make -j $(get_nprocs) install > install.log 2>&1
       cd ..
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage1/$(basename ${SCRIPT_NAME})"
     fi
diff --git a/tools/toolchain/scripts/stage1/install_valgrind.sh b/tools/toolchain/scripts/stage1/install_valgrind.sh
index 904d2fb1f5..52b5706471 100755
--- a/tools/toolchain/scripts/stage1/install_valgrind.sh
+++ b/tools/toolchain/scripts/stage1/install_valgrind.sh
@@ -34,8 +34,8 @@ case "$with_valgrind" in
       tar -xjf valgrind-${valgrind_ver}.tar.bz2
       cd valgrind-${valgrind_ver}
       ./configure --prefix="${pkg_install_dir}" --libdir="${pkg_install_dir}/lib" > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
-      make -j $NPROCS install > install.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
+      make -j $(get_nprocs) install > install.log 2>&1
       cd ..
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage1/$(basename ${SCRIPT_NAME})"
     fi
diff --git a/tools/toolchain/scripts/stage2/install_fftw.sh b/tools/toolchain/scripts/stage2/install_fftw.sh
index f60f6c9f91..78812539a1 100755
--- a/tools/toolchain/scripts/stage2/install_fftw.sh
+++ b/tools/toolchain/scripts/stage2/install_fftw.sh
@@ -48,7 +48,7 @@ case "$with_fftw" in
       grep '\bavx2\b' /proc/cpuinfo 1> /dev/null && FFTW_FLAGS="${FFTW_FLAGS} --enable-avx2"
       grep '\bavx512f\b' /proc/cpuinfo 1> /dev/null && FFTW_FLAGS="${FFTW_FLAGS} --enable-avx512"
       ./configure --prefix=${pkg_install_dir} --libdir="${pkg_install_dir}/lib" ${FFTW_FLAGS} > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
       make install > install.log 2>&1
       cd ..
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage2/$(basename ${SCRIPT_NAME})"
diff --git a/tools/toolchain/scripts/stage2/install_openblas.sh b/tools/toolchain/scripts/stage2/install_openblas.sh
index 4a5f75cb38..85f2dd8b58 100755
--- a/tools/toolchain/scripts/stage2/install_openblas.sh
+++ b/tools/toolchain/scripts/stage2/install_openblas.sh
@@ -48,7 +48,7 @@ case "$with_openblas" in
       # wrt NUM_THREADS=64: this is what the most common Linux distros seem to choose atm
       #                     for a good compromise between memory usage and scalability
       (
-        make -j $NPROCS \
+        make -j $(get_nprocs) \
           MAKE_NB_JOBS=0 \
           NUM_THREADS=64 \
           USE_THREAD=1 \
@@ -58,7 +58,7 @@ case "$with_openblas" in
           PREFIX="${pkg_install_dir}" \
           > make.log 2>&1
       ) || (
-        make -j $NPROCS \
+        make -j $(get_nprocs) \
           MAKE_NB_JOBS=0 \
           TARGET=NEHALEM \
           NUM_THREADS=64 \
@@ -69,7 +69,7 @@ case "$with_openblas" in
           PREFIX="${pkg_install_dir}" \
           > make.nehalem.log 2>&1
       )
-      make -j $NPROCS \
+      make -j $(get_nprocs) \
         MAKE_NB_JOBS=0 \
         NUM_THREADS=64 \
         USE_THREAD=1 \
diff --git a/tools/toolchain/scripts/stage2/install_reflapack.sh b/tools/toolchain/scripts/stage2/install_reflapack.sh
index d173108d99..74fe212aca 100755
--- a/tools/toolchain/scripts/stage2/install_reflapack.sh
+++ b/tools/toolchain/scripts/stage2/install_reflapack.sh
@@ -58,7 +58,7 @@ LAPACKELIB   = liblapacke.a
 EOF
       # lapack/blas build is *not* parallel safe (updates to the archive race)
       # Run first in parallel which will result most likely in an incomplete library
-      make -j $NPROCS lib blaslib > make.log 2>&1
+      make -j $(get_nprocs) lib blaslib > make.log 2>&1
       # Complete library in non-parallel mode
       make -j 1 lib blaslib > make1.log 2>&1
       # no make install, so have to do this manually
diff --git a/tools/toolchain/scripts/stage3/install_libint.sh b/tools/toolchain/scripts/stage3/install_libint.sh
index 17c948a6dd..b5521432a0 100755
--- a/tools/toolchain/scripts/stage3/install_libint.sh
+++ b/tools/toolchain/scripts/stage3/install_libint.sh
@@ -79,7 +79,7 @@ case "$with_libint" in
         --libdir="${pkg_install_dir}/lib" \
         > configure.log 2>&1
 
-      make -j $NPROCS > make.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
       make install > install.log 2>&1
 
       cd ..
diff --git a/tools/toolchain/scripts/stage3/install_libxc.sh b/tools/toolchain/scripts/stage3/install_libxc.sh
index 2b885d2cf2..181fb0f5b6 100755
--- a/tools/toolchain/scripts/stage3/install_libxc.sh
+++ b/tools/toolchain/scripts/stage3/install_libxc.sh
@@ -37,7 +37,7 @@ case "$with_libxc" in
       tar -xzf libxc-${libxc_ver}.tar.gz
       cd libxc-${libxc_ver}
       ./configure --prefix="${pkg_install_dir}" --libdir="${pkg_install_dir}/lib" > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
       make install > install.log 2>&1
       cd ..
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage3/$(basename ${SCRIPT_NAME})"
diff --git a/tools/toolchain/scripts/stage4/install_cosma.sh b/tools/toolchain/scripts/stage4/install_cosma.sh
index f9939410f3..b67ae52cf2 100755
--- a/tools/toolchain/scripts/stage4/install_cosma.sh
+++ b/tools/toolchain/scripts/stage4/install_cosma.sh
@@ -65,8 +65,8 @@ case "$with_cosma" in
           ;;
       esac
 
-      make -j $NPROCS > make.log 2>&1
-      make -j $NPROCS install > install.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
+      make -j $(get_nprocs) install > install.log 2>&1
       cd ..
 
       if [ "$ENABLE_CUDA" = "__TRUE__" ]; then
@@ -95,7 +95,7 @@ case "$with_cosma" in
               -DCOSMA_WITH_APPS=NO .. > cmake.log 2>&1
             ;;
         esac
-        make -j $NPROCS > make.log 2>&1
+        make -j $(get_nprocs) > make.log 2>&1
         install -d ${pkg_install_dir}/lib/cuda
         [ -f libs/grid2grid/src/grid2grid/*.a ] && install -m 644 libs/grid2grid/src/grid2grid/*.a ${pkg_install_dir}/lib/cuda >> install.log 2>&1
         [ -f libs/options/*.so ] && install -m 644 libs/options/*.so ${pkg_install_dir}/lib/cuda >> install.log 2>&1
diff --git a/tools/toolchain/scripts/stage4/install_libxsmm.sh b/tools/toolchain/scripts/stage4/install_libxsmm.sh
index b5b1a34b00..401d6e3887 100755
--- a/tools/toolchain/scripts/stage4/install_libxsmm.sh
+++ b/tools/toolchain/scripts/stage4/install_libxsmm.sh
@@ -57,7 +57,7 @@ EOF
       # stage of building an executable that uses the libxsmm
       # library
       cd libxsmm-${libxsmm_ver}
-      make -j $NPROCS \
+      make -j $(get_nprocs) \
         MALLOC=0 \
         INTRINSICS=1 \
         CXX=$CXX \
@@ -65,7 +65,7 @@ EOF
         FC=$FC \
         PREFIX=${pkg_install_dir} \
         > make.log 2>&1
-      make -j $NPROCS \
+      make -j $(get_nprocs) \
         MALLOC=0 \
         INTRINSICS=1 \
         CXX=$CXX \
diff --git a/tools/toolchain/scripts/stage4/install_scalapack.sh b/tools/toolchain/scripts/stage4/install_scalapack.sh
index 0c50099e79..a5fe8aa12a 100755
--- a/tools/toolchain/scripts/stage4/install_scalapack.sh
+++ b/tools/toolchain/scripts/stage4/install_scalapack.sh
@@ -55,7 +55,7 @@ case "$with_scalapack" in
         -DCMAKE_INSTALL_PREFIX="${pkg_install_dir}" \
         -DCMAKE_INSTALL_LIBDIR="lib" \
         -DCMAKE_BUILD_TYPE=Release .. > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
       make install >> make.log 2>&1
 
       popd > /dev/null
diff --git a/tools/toolchain/scripts/stage5/install_elpa.sh b/tools/toolchain/scripts/stage5/install_elpa.sh
index cfffbab925..ae1780be1c 100755
--- a/tools/toolchain/scripts/stage5/install_elpa.sh
+++ b/tools/toolchain/scripts/stage5/install_elpa.sh
@@ -117,7 +117,7 @@ case "$with_elpa" in
           LDFLAGS="-Wl,--enable-new-dtags ${MATH_LDFLAGS} ${SCALAPACK_LDFLAGS} ${cray_ldflags}" \
           LIBS="${SCALAPACK_LIBS} ${MATH_LIBS}" \
           > configure.log 2>&1
-        make -j $NPROCS ${ELPA_MAKEOPTS} > make.log 2>&1
+        make -j $(get_nprocs) ${ELPA_MAKEOPTS} > make.log 2>&1
         make install > install.log 2>&1
         cd ..
       done
diff --git a/tools/toolchain/scripts/stage5/install_ptscotch.sh b/tools/toolchain/scripts/stage5/install_ptscotch.sh
index ee72a04401..3a18ee80e7 100755
--- a/tools/toolchain/scripts/stage5/install_ptscotch.sh
+++ b/tools/toolchain/scripts/stage5/install_ptscotch.sh
@@ -42,7 +42,7 @@ case "$with_ptscotch" in
           -e "s|\(^CCD\).*|\1 = $MPICC|g" \
           -e "s|\(^CFLAGS\).*|\1 = $CFLAGS -DCOMMON_RANDOM_FIXED_SEED -DSCOTCH_RENAME -Drestrict=__restrict -DIDXSIZE64 ${MPI_CFLAGS}|g" \
           > Makefile.inc
-      make scotch -j $NPROCS > make.log 2>&1
+      make scotch -j $(get_nprocs) > make.log 2>&1
       make ptscotch -j $NROCS > make.log 2>&1
       # PT-scotch make install is buggy in that it cannot create
       # intermediate directories
diff --git a/tools/toolchain/scripts/stage5/install_superlu.sh b/tools/toolchain/scripts/stage5/install_superlu.sh
index 5065308cfa..7ce7633d85 100755
--- a/tools/toolchain/scripts/stage5/install_superlu.sh
+++ b/tools/toolchain/scripts/stage5/install_superlu.sh
@@ -44,7 +44,7 @@ case "$with_superlu" in
         -DCMAKE_INSTALL_PREFIX=${pkg_install_dir} \
         -DCMAKE_INSTALL_LIBDIR=${pkg_install_dir}/lib \
         .. > cmake.log 2>&1
-      make -j $NPROCS > make.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
       make install > install.log 2>&1
       cd ..
 
diff --git a/tools/toolchain/scripts/stage6/install_gsl.sh b/tools/toolchain/scripts/stage6/install_gsl.sh
index 402f0169f1..f3e4164572 100755
--- a/tools/toolchain/scripts/stage6/install_gsl.sh
+++ b/tools/toolchain/scripts/stage6/install_gsl.sh
@@ -37,8 +37,8 @@ case "$with_gsl" in
         --libdir="${pkg_install_dir}/lib" \
         --enable-shared \
         --enable-static > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
-      make -j $NPROCS install > install.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
+      make -j $(get_nprocs) install > install.log 2>&1
       cd ..
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage6/$(basename ${SCRIPT_NAME})"
     fi
diff --git a/tools/toolchain/scripts/stage6/install_plumed.sh b/tools/toolchain/scripts/stage6/install_plumed.sh
index 9a0fdba916..87037f96ec 100755
--- a/tools/toolchain/scripts/stage6/install_plumed.sh
+++ b/tools/toolchain/scripts/stage6/install_plumed.sh
@@ -54,7 +54,7 @@ case "$with_plumed" in
         LIBS="${libs}" \
         --prefix=${pkg_install_dir} \
         --libdir="${pkg_install_dir}/lib" > configure.log 2>&1
-      make VERBOSE=1 -j $NPROCS > make.log 2>&1
+      make VERBOSE=1 -j $(get_nprocs) > make.log 2>&1
       make install > install.log 2>&1
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage6/$(basename ${SCRIPT_NAME})"
     fi
diff --git a/tools/toolchain/scripts/stage7/install_hdf5.sh b/tools/toolchain/scripts/stage7/install_hdf5.sh
index eeb03e9646..8b0f138b6f 100755
--- a/tools/toolchain/scripts/stage7/install_hdf5.sh
+++ b/tools/toolchain/scripts/stage7/install_hdf5.sh
@@ -39,8 +39,8 @@ case "$with_hdf5" in
         --libdir="${pkg_install_dir}/lib" \
         --enable-shared \
         > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
-      make -j $NPROCS install > install.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
+      make -j $(get_nprocs) install > install.log 2>&1
       cd ..
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage7/$(basename ${SCRIPT_NAME})"
     fi
diff --git a/tools/toolchain/scripts/stage7/install_libvdwxc.sh b/tools/toolchain/scripts/stage7/install_libvdwxc.sh
index a052fe67bf..ddf02de811 100755
--- a/tools/toolchain/scripts/stage7/install_libvdwxc.sh
+++ b/tools/toolchain/scripts/stage7/install_libvdwxc.sh
@@ -81,7 +81,7 @@ case "$with_libvdwxc" in
           --with-mpi \
           >> configure.log 2>&1
       fi
-      make -j $NPROCS > compile.log 2>&1
+      make -j $(get_nprocs) > compile.log 2>&1
       make install > compile.log 2>&1
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage7/$(basename ${SCRIPT_NAME})"
     fi
diff --git a/tools/toolchain/scripts/stage7/install_libvori.sh b/tools/toolchain/scripts/stage7/install_libvori.sh
index 2d198dd2a0..bfe58d22fe 100755
--- a/tools/toolchain/scripts/stage7/install_libvori.sh
+++ b/tools/toolchain/scripts/stage7/install_libvori.sh
@@ -47,9 +47,9 @@ case "${with_libvori:=__INSTALL__}" in
         -DCMAKE_INSTALL_LIBDIR=lib \
         -DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE \
         .. > cmake.log 2>&1
-      CMAKE_BUILD_PARALLEL_LEVEL="${NPROCS}" cmake --build . > build.log 2>&1
-      CMAKE_BUILD_PARALLEL_LEVEL="${NPROCS}" cmake --build . --target test > test.log 2>&1
-      CMAKE_BUILD_PARALLEL_LEVEL="${NPROCS}" cmake --build . --target install > install.log 2>&1
+      CMAKE_BUILD_PARALLEL_LEVEL="$(get_nprocs)" cmake --build . > build.log 2>&1
+      CMAKE_BUILD_PARALLEL_LEVEL="$(get_nprocs)" cmake --build . --target test > test.log 2>&1
+      CMAKE_BUILD_PARALLEL_LEVEL="$(get_nprocs)" cmake --build . --target install > install.log 2>&1
 
       write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage7/$(basename "${SCRIPT_NAME}")"
     fi
diff --git a/tools/toolchain/scripts/stage7/install_spglib.sh b/tools/toolchain/scripts/stage7/install_spglib.sh
index 7e79597845..b810b61aa7 100755
--- a/tools/toolchain/scripts/stage7/install_spglib.sh
+++ b/tools/toolchain/scripts/stage7/install_spglib.sh
@@ -39,7 +39,7 @@ case "$with_spglib" in
       mkdir build
       cd build
       cmake -DCMAKE_INSTALL_PREFIX="${pkg_install_dir}" -DCMAKE_BUILD_TYPE=Release .. > configure.log 2>&1
-      make -j $NPROCS > make.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
       make install >> make.log 2>&1
       mkdir ${pkg_install_dir}/include/spglib
       cp ${pkg_install_dir}/include/{,spglib/}spglib.h
diff --git a/tools/toolchain/scripts/stage8/install_sirius.sh b/tools/toolchain/scripts/stage8/install_sirius.sh
index e3bd33df0d..84fddb4e71 100755
--- a/tools/toolchain/scripts/stage8/install_sirius.sh
+++ b/tools/toolchain/scripts/stage8/install_sirius.sh
@@ -138,7 +138,7 @@ case "$with_sirius" in
         -DUSE_ELPA=OFF \
         ${COMPILATION_OPTIONS} .. > compile.log 2>&1
 
-      make -j $NPROCS -C src >> compile.log 2>&1
+      make -j $(get_nprocs) -C src >> compile.log 2>&1
 
       install -d ${pkg_install_dir}/include >> install.log 2>&1
       install -d ${pkg_install_dir}/lib >> install.log 2>&1
@@ -163,7 +163,7 @@ case "$with_sirius" in
           -DBUILD_SHARED_LIBS=OFF \
           -DCMAKE_CXX_COMPILER="${MPICXX}" \
           -DCMAKE_C_COMPILER="${MPICC}" ${COMPILATION_OPTIONS} .. >> compile.log 2>&1
-        make -j $NPROCS -C src >> compile.log 2>&1
+        make -j $(get_nprocs) -C src >> compile.log 2>&1
         install -d ${pkg_install_dir}/lib/cuda
         install -d ${pkg_install_dir}/include/cuda
         install -m 644 src/*.a ${pkg_install_dir}/lib/cuda >> install.log 2>&1
diff --git a/tools/toolchain/scripts/stage8/install_spfft.sh b/tools/toolchain/scripts/stage8/install_spfft.sh
index f3be9c5729..1e0e3bf6a5 100755
--- a/tools/toolchain/scripts/stage8/install_spfft.sh
+++ b/tools/toolchain/scripts/stage8/install_spfft.sh
@@ -45,8 +45,8 @@ case "$with_spfft" in
         -DSPFFT_MPI=ON \
         -DSPFFT_INSTALL=ON \
         .. > cmake.log 2>&1
-      make -j $NPROCS > make.log 2>&1
-      make -j $NPROCS install > install.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
+      make -j $(get_nprocs) install > install.log 2>&1
       cd ..
 
       if [ "$ENABLE_CUDA" = "__TRUE__" ]; then
@@ -62,7 +62,7 @@ case "$with_spfft" in
           -DSPFFT_INSTALL=ON \
           -DSPFFT_GPU_BACKEND=CUDA \
           .. > cmake.log 2>&1
-        make -j $NPROCS > make.log 2>&1
+        make -j $(get_nprocs) > make.log 2>&1
         install -d ${pkg_install_dir}/lib/cuda
         [ -f src/libspfft.a ] && install -m 644 src/*.a ${pkg_install_dir}/lib/cuda >> install.log 2>&1
         [ -f src/libspfft.so ] && install -m 644 src/*.so ${pkg_install_dir}/lib/cuda >> install.log 2>&1
diff --git a/tools/toolchain/scripts/stage8/install_spla.sh b/tools/toolchain/scripts/stage8/install_spla.sh
index 78cf047385..f7429cd70c 100755
--- a/tools/toolchain/scripts/stage8/install_spla.sh
+++ b/tools/toolchain/scripts/stage8/install_spla.sh
@@ -46,8 +46,8 @@ case "$with_spla" in
         -DSPLA_INSTALL=ON \
         -DSPLA_STATIC=OM \
         .. > cmake.log 2>&1
-      make -j $NPROCS > make.log 2>&1
-      make -j $NPROCS install > install.log 2>&1
+      make -j $(get_nprocs) > make.log 2>&1
+      make -j $(get_nprocs) install > install.log 2>&1
       cd ..
 
       if [ "$ENABLE_CUDA" = "__TRUE__" ]; then
@@ -64,7 +64,7 @@ case "$with_spla" in
           -DSPLA_INSTALL=ON \
           -DSPLA_GPU_BACKEND=CUDA \
           .. > cmake.log 2>&1
-        make -j $NPROCS > make.log 2>&1
+        make -j $(get_nprocs) > make.log 2>&1
         install -d ${pkg_install_dir}/lib/cuda
         [ -f src/libspla.a ] && install -m 644 src/*.a ${pkg_install_dir}/lib/cuda >> install.log 2>&1
         [ -f src/libspla.so ] && install -m 644 src/*.so ${pkg_install_dir}/lib/cuda >> install.log 2>&1
diff --git a/tools/toolchain/scripts/tool_kit.sh b/tools/toolchain/scripts/tool_kit.sh
index c2c166c948..011627dd52 100644
--- a/tools/toolchain/scripts/tool_kit.sh
+++ b/tools/toolchain/scripts/tool_kit.sh
@@ -135,7 +135,9 @@ reverse() (
 
 # get the number of processes available for compilation
 get_nprocs() {
-  if $(command -v nproc >&- 2>&-); then
+  if [ -n "${NPROCS_OVERWRITE}" ]; then
+    echo "${NPROCS_OVERWRITE}"
+  elif $(command -v nproc >&- 2>&-); then
     echo $(nproc --all)
   else
     echo 1