gcc-8 requires an alias function to have the same exact return type

The main WD should be implicit to honor the implicit parallel
of size 1 that executes the main program.

As a side effect, the main WD in OmpSs can no longer ignore the
barrier construct and must be explicitly prevented.

Resolve "Extrae version check and cross-compilation"

Closes #1241

See merge request !45

Program checks can cause problems when cross-compiling

Recent lock in lendCpu (5cd5ccbe) may cause deadlocks

Implement malleable  worksharings

See merge request !44

Dynamic and Guided Worksharings WD submission now only creates
a single WD representative instead of distributing the work.
Idle threads will participate if needed, and will copy the WD
at dequeue time.

Replace remaining calls to WD::canRunIn(PE)

See merge request !43

Fix/pe active device

See merge request !42

Previously, the WD was assuming that the active device in the PE was the first one

Method WD::canRunIn(PE) moved to PE::canRun(WD) because it iterates over all PEdevices, it should be a PE method

Fix/reserve smp pe

See merge request !41

Close #1239

If DLB is temporarily disabled, CPUs that are lent need to be saved
in order to restore them at any point without DLB intervention.

Fix cache-copy-data-out description

See merge request !38

Implement SMPMultiThread::initializeDependent

See merge request !37

Fix/node dest in remote wd

See merge request !36

Add ensure in GPUMemoryTransferOutList::removeMemoryTransfe

See merge request !35

Close comment 0d401ca8 (comment 19280)

Add extra argument in getRemoteWorkDescriptor to define the destination node instead of using the archId argument