Refactor shmem_barrier to accept barrier_id

See merge request dlb/dlb!49

This commit will refactor the shmem_barrier interface so that the caller
can chose to which barrier attach; wait; and detach. This is a
preparation for the MNGO module.

Signed-off-by: JOAN VINYALS YLLA CATALA <joan.vinyals@bsc.es>

Refactors dlb_enabled to lewi_enabled

See merge request dlb/dlb!48

This commit refactors the subprocess_descriptor_t boolean dlb_enabled to
lewi_enabled. As well as the function that modifies it: set_dlb_enabled
to set_lewi_enabled.

Signed-off-by: JOAN VINYALS YLLA CATALA <joan.vinyals@bsc.es>

Don't emit a fatal_cond when disabling an already disabled CPU, just ignore the callback

See merge request dlb/dlb!47

Add number of MPI calls and number of ranks to pop-raw

See merge request dlb/dlb!45

Implement TALP samples per thread

See merge request dlb/dlb!44

- Threads accumulate their metrics in a sample structure. When
    a region starts, or MPI finalizes, or requested by the API,
    all samples are gathered and all started regions are updated.
- Disable dynamic enabling and disabling of CPUs: metrics are now
    gathered per thread so each thread will locally disable their
    metrics when threaded TALP is implemented.

Implement samples and microsamples to accumulate metrics, and only
update region if requested.
This commit should reduce the TALP overhead, see #141

Include the role-shifting OpenMP thread manager

Closes #151 and #160

See merge request dlb/dlb!43

The message can be a bit too verbose sometimes

Implement TALP collective functions for node and POP metrics

Closes #176 and #140

See merge request dlb/dlb!42

Close #176

Close #140

Close #165

Resolve "TALP: save report to file"

Closes #162

See merge request dlb/dlb!41