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subroutine boundaryflux_advection_diffusion_1d(this)! this method uses an linear upwind solver for the! advective flux and the bassi-rebay method for the! diffusive fluxesimplicit none class(advection_diffusion_1d),intent(inout)::this! Localinteger::ndofndof=this%solution%nelem*this%solution%nvar*2call boundaryflux_advection_diffusion_1d_gpu(this%solution%boundary_gpu,&this%solution%extBoundary_gpu,this%solutionGradient%avgBoundary_gpu,&this%flux%boundarynormal_gpu,this%u,this%nu,ndof)endsubroutine boundaryflux_advection_diffusion_1d