avoid parallel access to lustre on levante

.ci/bb/levante-dkrz/test.all.gcc

@@ -45,9 +45,9 @@ LDFLAGS="${LDFLAGS}" \
 MPI_LAUNCH="${MPI_LAUNCH}" \
 PKG_CONFIG_PATH="${YAXT_ROOT}/lib/pkgconfig:${PPM_ROOT}/lib/pkgconfig"
 
-make -j8
+make
 
-make -j8 check || { cat tests/test-suite.log; exit 1; }
+make check || { cat tests/test-suite.log; exit 1; }
 
 check_all_tests_passed tests/test-suite.log
 

.ci/bb/levante-dkrz/test.all.intel-classic

@@ -49,9 +49,9 @@ PKG_CONFIG_PATH="${YAXT_ROOT}/lib/pkgconfig:${PPM_ROOT}/lib/pkgconfig"
 # Check whether the configure script removed the '.libs' directory:
 test -e .libs && echo "ERROR: the configure script did not remove directory '.libs'" && exit 1
 
-make -j8
+make
 
-make -j8 check || { cat tests/test-suite.log; exit 1; }
+make check || { cat tests/test-suite.log; exit 1; }
 
 check_all_tests_passed tests/test-suite.log
 

.ci/bb/levante-dkrz/test.icon-pio.intel-classic

@@ -177,7 +177,7 @@ s/^library_names=.*/library_names=''/
 s/^installed=.*/installed=no/
 }" `find "${LOCAL_YAXT_ROOT}" "${LOCAL_PPM_ROOT}" -name '*.la'`
 
-make -j8
+make
 
 # The current general approach in the build system of ICON is to avoid building
 # the shared versions of the bundled libraries and link to the static ones
@@ -204,7 +204,7 @@ if test -n "${invalid_entries}"; then
   exit 1
 fi
 
-make -j8 check TESTS= XFAIL_TESTS=
+make check TESTS= XFAIL_TESTS=
 
 # Check that a test program is linked to YAXT and PPM statically as it should
 # when built inside the build system of ICON:
@@ -238,7 +238,7 @@ case " ${cdi_features} " in
     exit 1 ;;
 esac
 
-make -j8 check || { cat tests/test-suite.log; exit 1; }
+make check || { cat tests/test-suite.log; exit 1; }
 
 check_all_tests_passed tests/test-suite.log
 

.ci/bb/levante-dkrz/test.icon.gcc

@@ -93,8 +93,8 @@ acx_cv_have_netcdf2=yes \
 acx_cv_have_netcdf4=yes \
 acx_cv_have_pnetcdf=no
 
-make -j8
+make
 
-make -j8 check || { cat tests/test-suite.log; exit 1; }
+make check || { cat tests/test-suite.log; exit 1; }
 
 check_no_git_untracked