Use parallel tests with pytest

      # 10 GiB should be enough for just about anyone :)

      ulimit -m $(python -c 'print(1024*1024*10)')

     # Not (Gitlab and GPU CI)?

     PYTEST_PARALLEL_FLAGS=""

     if [[ $CI_RUNNER_DESCRIPTION != *-gpu ]]; then

       PYTEST_PARALLEL_FLAGS="-n 4"

     fi

      ${PY_EXE} -m pytest \

        --durations=10 \

        --tb=native  \

        --junitxml=pytest.xml \

        --doctest-modules \

        -rxsw \

        $PYTEST_FLAGS $TESTABLES

        $PYTEST_FLAGS $PYTEST_PARALLEL_FLAGS $TESTABLES

    fi

  fi

}