Juan 17/04/2019:discretisation.f90 , for ihaloswap, add mpi_wait(send_reque,...

Juan 17/04/2019:discretisation.f90 , for ihaloswap, add mpi_wait(send_reque, does work really => compile without overlaping for the moment

tensorproductmultigrid_Source/discretisation.f90

@@ -1027,7 +1027,9 @@ end subroutine construct_vertical_coeff
       if (overlap_comms) then
         if (m > 0) then
           if (LUseO) call mpi_waitall(4,recv_requests, MPI_STATUSES_IGNORE, ierr)
+          if (LUseO) call mpi_waitall(4,send_requests, MPI_STATUSES_IGNORE, ierr)
           if (LUseT) call mpi_waitall(4,recv_requestsT, MPI_STATUSES_IGNORE, ierr)
+          if (LUseT) call mpi_waitall(4,send_requestsT, MPI_STATUSES_IGNORE, ierr)
         end if
       else
         call haloswap_mnh(level,m,u)
@@ -1408,7 +1410,9 @@ end subroutine construct_vertical_coeff
     if (overlap_comms) then
       if (m > 0) then
         if (LUseO) call mpi_waitall(4,recv_requests, MPI_STATUSES_IGNORE, ierr)
+        if (LUseO) call mpi_waitall(4,send_requests, MPI_STATUSES_IGNORE, ierr)
         if (LUseT) call mpi_waitall(4,recv_requestsT, MPI_STATUSES_IGNORE, ierr)
+        if (LUseT) call mpi_waitall(4,send_requestsT, MPI_STATUSES_IGNORE, ierr)
       end if
     else
       call haloswap_mnh(level,m,u)