add a priority scheme for getrf_nopiv_tile (with dmdas) and an efficient restriction optimization (tested on sirocco)

give the full path to smpicc - refix the problem of starpu mpi function detection - with the complete path of mpi libraries the test fails... with -L/... and -l it succeeds

does not build with starpu/simgrid if symbols starpu_mpi_cache_flush and starpu_mpi_cache_flush_all_data

refix the problem of starpu mpi function detection - with the complete path of mpi libraries the test fails... with -L/... and -l it succeeds

trailing whitespaces

Fix a large bunch of warnings, and there are still mistakes that should be fixed before the SC release

At the user levl, we wait for a sequence. We need to add a MORSE_Barrier function that waits for all sequences currently running