message: clarify how to install tpls on lc
diff: @@ -150,16 +150,28 @@ other Axom developers to use during development, to use in Axom Gitlab CI testin
  will build the TPLs for the clang 10.0.0 compiler. Please see the
  ``scripts/spack/specs.json`` file for available specs.
  -#. When you are confident that everything is correct, become the service user
  - ``atk``, which requires a certain level of permission, on each of the
  - machines named in Axom's standard host-configs. Run the following script
  - which will build all specs for the machine you are on:
  +#. **Install TPLs on all required LC machines.**
  + This step need to be run on each of the machines named in Axom's standard host-configs.
  + When you are confident that everything is correct, become the service user
  + ``atk`` via the following command::
  - ``$ scripts/llnl/build_tpl.py``
  + $ xsu atk
  - This will do all of the standard installations in the shared directories
  + .. note:: This command requires a certain level of permission.
  +
  + Run the corresponding command for the system you are on::
  +
  + # blueos
  + $ lalloc 1 -W 120 scripts/llnl/build_tpl.py
  + # toss3
  + $ srun -N1 --interactive -t 120 scripts/llnl/build_tpl.py
  +
  + This script will build all third-party libraries for all compilers specs
  + for the machine you are on. These will be installed into shared directories
  used by Axom developers. When completed, they will produce new host-config
  - files for each configuration. Give these files to your regular user account
  + files for each configuration. These host-configs will be at the base of the repository
  + and named in the following pattern: ``<machine name>-<SYS_TYPE>-<compiler spec>.cmake``
  + Give these files to your regular user account
  and log back in to that account. Copy these new host-config files to the
  ``host-configs`` subdirectory and commit them to your branch. Make sure all
  file changes from all previous steps are also committed and pushed upstream.
  