SideExchange_MappedVector2D Subroutine

  subroutine SideExchange_MappedVector2D(this,mesh)
    implicit none
    class(MappedVector2D),intent(inout) :: this
    type(Mesh2D),intent(inout) :: mesh
    ! Local
    integer :: e1,e2,s1,s2,e2Global
    integer :: flip,bcid
    integer :: i1,i2,ivar,idir
    integer :: neighborRank
    integer :: offset

    offset = mesh%decomp%offsetElem(mesh%decomp%rankid+1)

    if(mesh%decomp%mpiEnabled) then
      call this%MPIExchangeAsync(mesh)
    endif

    ! Do the side exchange internal to this mpi process
    call SideExchange_2D_gpu(this%extboundary_gpu, &
                             this%boundary_gpu,mesh%sideinfo_gpu,mesh%decomp%elemToRank_gpu, &
                             mesh%decomp%rankid,offset,this%interp%N,2*this%nvar,this%nelem)

    if(mesh%decomp%mpiEnabled) then
      call mesh%decomp%FinalizeMPIExchangeAsync()
      ! Apply side flips for data exchanged with MPI
      call ApplyFlip_2D_gpu(this%extboundary_gpu,mesh%sideInfo_gpu, &
                            mesh%decomp%elemToRank_gpu,mesh%decomp%rankId, &
                            offset,this%interp%N,2*this%nVar,this%nElem)
    endif

  endsubroutine SideExchange_MappedVector2D