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gyacomo/src/stepon.F90
5a4c7c3cef78gather_output

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stepon.F90
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SUBROUTINE stepon
! Advance one time step, (num_step=4 for Runge Kutta 4 scheme)
USE basic
USE time_integration
USE fields, ONLY: moments_e, moments_i, phi
USE array , ONLY: moments_rhs_e, moments_rhs_i, Sepj, Sipj
USE grid
USE advance_field_routine, ONLY: advance_time_level, advance_field
USE model
USE utility, ONLY: checkfield
use prec_const
IMPLICIT NONE
INTEGER :: num_step
LOGICAL :: mlend
DO num_step=1,ntimelevel ! eg RK4 compute successively k1, k2, k3, k4
! Compute right hand side of moments hierarchy equation
CALL moments_eq_rhs_e
CALL moments_eq_rhs_i
! Advance from updatetlevel to updatetlevel+1 (according to num. scheme)
CALL advance_time_level
! Update the moments with the hierarchy RHS (step by step)
! Execution time start
CALL cpu_time(t0_adv_field)
DO ip=ips_e,ipe_e
DO ij=ijs_e,ije_e
CALL advance_field(moments_e(ip,ij,:,:,:),moments_rhs_e(ip,ij,:,:,:))
ENDDO
ENDDO
DO ip=ips_i,ipe_i
DO ij=ijs_i,ije_i
CALL advance_field(moments_i(ip,ij,:,:,:),moments_rhs_i(ip,ij,:,:,:))
ENDDO
ENDDO
! Execution time end
CALL cpu_time(t1_adv_field)
tc_adv_field = tc_adv_field + (t1_adv_field - t0_adv_field)
! Update electrostatic potential
CALL poisson
! Update nonlinear term
IF ( NON_LIN ) THEN
CALL compute_Sapj
ENDIF
!(The two routines above are called in inital for t=0)
CALL checkfield_all()
IF( nlend ) EXIT ! exit do loop
END DO
CONTAINS
SUBROUTINE checkfield_all ! Check all the fields for inf or nan
! Execution time start
CALL cpu_time(t0_checkfield)
IF ( (ikrs .EQ. 1) .AND. (NON_LIN) ) CALL enforce_symetry() ! Enforcing symmetry on kr = 0
mlend=.FALSE.
IF(.NOT.nlend) THEN
mlend=mlend .or. checkfield(phi,' phi')
DO ip=ips_e,ipe_e
DO ij=ijs_e,ije_e
mlend=mlend .or. checkfield(moments_e(ip,ij,:,:,updatetlevel),' moments_e')
ENDDO
ENDDO
DO ip=ips_i,ipe_i
DO ij=ijs_i,ije_i
mlend=mlend .or. checkfield(moments_i(ip,ij,:,:,updatetlevel),' moments_i')
ENDDO
ENDDO
CALL MPI_ALLREDUCE(mlend, nlend, 1, MPI_LOGICAL, MPI_LOR, MPI_COMM_WORLD, ierr)
ENDIF
! Execution time end
CALL cpu_time(t1_checkfield)
tc_checkfield = tc_checkfield + (t1_checkfield - t0_checkfield)
END SUBROUTINE checkfield_all
SUBROUTINE enforce_symetry
DO ip=ips_e,ipe_e
DO ij=ijs_e,ije_e
DO ikz=2,Nkz/2 !symmetry at kr = 0
moments_e( ip,ij,1,ikz, :) = CONJG(moments_e( ip,ij,1,Nkz+2-ikz, :))
END DO
END DO
END DO
DO ip=ips_i,ipe_i
DO ij=ijs_i,ije_i
DO ikz=2,Nkz/2 !symmetry at kr = 0
moments_i( ip,ij,1,ikz, :) = CONJG(moments_i( ip,ij,1,Nkz+2-ikz, :))
END DO
END DO
END DO
DO ikz=2,Nkz/2 !symmetry at kr = 0
phi(1,ikz) = phi(1,Nkz+2-ikz)
END DO
END SUBROUTINE enforce_symetry
END SUBROUTINE stepon
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