SUBROUTINE swap_timelevel !------------------------------------------------------------------------------! ! Current revisions: ! ----------------- ! ! ! Former revisions: ! ----------------- ! $Id: swap_timelevel.f90 1011 2012-09-20 08:15:29Z raasch $ ! ! 1010 2012-09-20 07:59:54Z raasch ! cpp switch __nopointer added for pointer free version ! ! 1001 2012-09-13 14:08:46Z raasch ! all actions concerning leapfrog scheme removed ! ! 102 2007-07-27 09:09:17Z raasch ! swaping of uswst, vswst included ! ! 95 2007-06-02 16:48:38Z raasch ! Swaping of salinity ! ! 75 2007-03-22 09:54:05Z raasch ! moisture renamed humidity ! ! 19 2007-02-23 04:53:48Z raasch ! Swaping of top fluxes ! ! RCS Log replace by Id keyword, revision history cleaned up ! ! Revision 1.8 2004/01/28 15:28:18 raasch ! Swaping for Runge-Kutta schemes implemented ! ! Revision 1.1 2000/01/10 10:08:58 10:08:58 raasch (Siegfried Raasch) ! Initial revision ! ! ! Description: ! ------------ ! Swap of timelevels of variables after each timestep !------------------------------------------------------------------------------! USE arrays_3d USE cpulog USE interfaces USE control_parameters IMPLICIT NONE ! !-- Incrementing timestep counter timestep_count = timestep_count + 1 ! !-- Swap of variables #if defined( __nopointer ) CALL cpu_log( log_point(28), 'swap_timelevel (nop)', 'start' ) u = u_p v = v_p w = w_p pt = pt_p IF ( .NOT. constant_diffusion ) THEN e = e_p ENDIF IF ( ocean ) THEN sa = sa_p ENDIF IF ( humidity .OR. passive_scalar ) THEN q = q_p ENDIF CALL cpu_log( log_point(28), 'swap_timelevel (nop)', 'stop' ) #else CALL cpu_log( log_point(28), 'swap_timelevel', 'start' ) SELECT CASE ( MOD( timestep_count, 2 ) ) CASE ( 0 ) u => u_1; u_p => u_2 v => v_1; v_p => v_2 w => w_1; w_p => w_2 pt => pt_1; pt_p => pt_2 IF ( .NOT. constant_diffusion ) THEN e => e_1; e_p => e_2 ENDIF IF ( ocean ) THEN sa => sa_1; sa_p => sa_2 ENDIF IF ( humidity .OR. passive_scalar ) THEN q => q_1; q_p => q_2 ENDIF CASE ( 1 ) u => u_2; u_p => u_1 v => v_2; v_p => v_1 w => w_2; w_p => w_1 pt => pt_2; pt_p => pt_1 IF ( .NOT. constant_diffusion ) THEN e => e_2; e_p => e_1 ENDIF IF ( ocean ) THEN sa => sa_2; sa_p => sa_1 ENDIF IF ( humidity .OR. passive_scalar ) THEN q => q_2; q_p => q_1 ENDIF END SELECT CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' ) #endif END SUBROUTINE swap_timelevel