Add TBB to github actions.

[marcfehling]

We might not have fully ported oneTBB yet f743db9, but we can identify it now and fallback to the bundled version since #12958.

Nevertheless, we can already add oneTBB to github-actions to

• double-check that our fallback solution works
• help verifying our implementation while continuing to port oneTBB

I hope this works. If not, we can leave this WIP.

[marcfehling]

Seems to work: https://github.com/dealii/dealii/runs/4475392720
@tamiko -- FYI

-- Include /home/runner/work/dealii/dealii/cmake/configure/configure_1_tbb.cmake
-- TBB_LIBRARY not found! The call was:
--     FIND_LIBRARY(TBB_LIBRARY NAMES tbb HINTS /opt/intel/oneapi/tbb/2021.4.0 PATH_SUFFIXES lib lib64 lib)
-- TBB_DEBUG_LIBRARY not found! The call was:
--     FIND_LIBRARY(TBB_DEBUG_LIBRARY NAMES tbb_debug HINTS /opt/intel/oneapi/tbb/2021.4.0 PATH_SUFFIXES lib lib64 lib)
-- TBB_INCLUDE_DIR not found! The call was:
--     FIND_PATH(TBB_INCLUDE_DIR tbb/tbb_stddef.h HINTS /opt/intel/oneapi/tbb/2021.4.0 PATH_SUFFIXES include include/tbb tbb)
-- Found TBB_INCLUDE_DIR
--   TBB_VERSION: 2021.4
--   TBB_LIBRARIES: *** Required variable "TBB_LIBRARY" set to NOTFOUND ***
--   TBB_INCLUDE_DIRS: /opt/intel/oneapi/tbb/2021.4.0/include
--   TBB_USER_INCLUDE_DIRS: /opt/intel/oneapi/tbb/2021.4.0/include
-- Could NOT find TBB
-- deal.II is not fully ported to the new TBB oneAPI interface, disabling external TBB
-- DEAL_II_WITH_TBB has unmet external dependencies.
-- Performing Test DEAL_II_HAVE_FLAG_Wno_parentheses
-- Performing Test DEAL_II_HAVE_FLAG_Wno_parentheses - Success
-- DEAL_II_WITH_TBB successfully set up with bundled packages.

[bangerth]

Is that something that's set in the OS?

[marcfehling]

The command source /opt/intel/oneapi/setvars.sh sets all relevant environment variables, i.e., I_MPI_ROOT, MKLROOT, and TBBROOT.

See also https://www.intel.com/content/www/us/en/develop/documentation/get-started-with-intel-oneapi-dlfd-linux/top/before-you-begin.html

[bangerth]

/rebuild

[marcfehling]

/rebuild

As this PR only affects the github-actions workers, we could technically skip the jenkins tests.

[bangerth]

I'm no expert on the CI infrastructure. Would someone who knows this area make a call here?

[masterleinad]

Looks good to me.