Ignore:
Timestamp:
Mar 29, 2011 11:39:40 AM (10 years ago)
Author:
raasch
Message:

New:
---

In case of multigrid method, on coarse grid levels, gathered data are
identically processed on all PEs (before, on PE0 only), so that the subsequent
scattering of data is not neccessary any more. (modules, init_pegrid, poismg)

Changed:


Calculation of weighted average of p is now handled in the same way
regardless of the number of ghost layers (advection scheme). (pres)

multigrid and sor method are using p_loc for iterative
advancements of pressure. p_sub removed. (init_3d_model, modules, poismg, pres, sor)

bc_lr and bc_ns replaced by bc_lr_dirrad, bc_lr_raddir, bc_ns_dirrad, bc_ns_raddir
for speed optimization. (calc_spectra, check_parameters, exchange_horiz,
exchange_horiz_2d, header, init_3d_model, init_grid, init_pegrid, modules,
poismg, pres, sor, time_integration, timestep)

grid_level directly used as index for MPI data type arrays. (exchange_horiz,
poismg)

initial assignments of zero to array p for iterative solvers only (init_3d_model)

Errors:


localsum calculation modified for proper OpenMP reduction. (pres)

Bugfix: bottom (nzb) and top (nzt+1) boundary conditions set in routines
resid and restrict. They were missed before, which may have led to
unpredictable results. (poismg)

File:
1 edited

Legend:

Unmodified
Added
Removed
  • palm/trunk/SOURCE/timestep.f90

    r668 r707  
    44! Current revisions:
    55! -----------------
    6 !
     6! bc_lr/ns replaced by bc_lr/ns_cyc
    77!
    88! Former revisions:
     
    185185!--    may be further restricted by the lateral damping layer (damping only
    186186!--    along x and y)
    187        IF ( bc_lr /= 'cyclic' )  THEN
     187       IF ( .NOT. bc_lr_cyc )  THEN
    188188          dt_diff = MIN( dt_diff, 0.125 * dx2 / ( km_damp_max + 1E-20 ) )
    189        ELSEIF ( bc_ns /= 'cyclic' )  THEN
     189       ELSEIF ( .NOT. bc_ns_cyc )  THEN
    190190          dt_diff = MIN( dt_diff, 0.125 * dy2 / ( km_damp_max + 1E-20 ) )
    191191       ENDIF
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