TALP module

See merge request dlb/dlb!3

Mario Rodriguez authored Dec 02, 2019 and Victor Lopez committed Dec 02, 2019

Adding the MPI statistics module for DLB

Doxygen < 1.8.16 was not correctly parsing the html tag <U>
The tag has now been replaced by a custom command that expands
to <U>\1</U> only if the tag is supported by the detected doxygen.

gcovr >= 4 is failing when the build is done in a different
directory from the source directory.

* Move the test of SP2 receiving again the CPU to the above block.
The code is easier to read if no actions are pending between blocks.

* lewi_mask_01 and api_sp_01 were sometimes failing due to a race
condition in the double call to reclaimCpuMask function. The first
one was intended to return ERR_PERM but it was also triggering the
callback for the owned CPUs. Swithcing the calling order should fix
the race.

* Also, deprecate the binary form 1000b in favor of 0b0001

Resolve "DLB_AcquireCpuMask forgets callbacks when failing"

Closes #110

See merge request dlb/dlb!4

If DLB can only act on a subset of CPUs requested for some action,
the callbacks for those CPUs that succeeded should still be invoked.

Fix #109

Fix #106

Fix #105

* DROM example now supports 2+ processes
* Added --lewi-mpi for all three LeWI examples

Option --statistics is marked as deprecated but its value still
needs to be parsed and assigned to the struct options.

Add another flag OPT_UNUSED for variables that are truly not used
anymore.

If 'fib' is a private variable, compilers with a high enough optimization
level can detect that 'computation' is dead code and optimize too much.

* Fix old API names
* Fix LB cast to double
* Increase default loads and parallel granularity
* Improve MPI+OpenMP test:
  - Use performance libs instead of debug
  - Set some OMP env. vars to improve performance in DLB
  - Document the MPI no-binding flag

* Add verbose messages during init
* Finalize DLB if OMPT failed