Changeset 1257 for palm/trunk/SOURCE/wall_fluxes.f90

Timestamp:

Nov 8, 2013 3:18:40 PM (10 years ago)

Author:

raasch

Message:

New:
---

openACC porting of timestep calculation
(modules, timestep, time_integration)

Changed:

---

openACC loop directives and vector clauses removed (because they do not give any performance improvement with PGI
compiler versions > 13.6)
(advec_ws, buoyancy, coriolis, diffusion_e, diffusion_s, diffusion_u, diffusion_v, diffusion_w, diffusivities, exchange_horiz, fft_xy, pres, production_e, transpose, tridia_solver, wall_fluxes)

openACC loop independent clauses added
(boundary_conds, prandtl_fluxes, pres)

openACC declare create statements moved after FORTRAN declaration statement
(diffusion_u, diffusion_v, diffusion_w, fft_xy, poisfft, production_e, tridia_solver)

openACC end parallel replaced by end parallel loop
(flow_statistics, pres)

openACC "kernels do" replaced by "kernels loop"
(prandtl_fluxes)

output format for theta* changed to avoid output of *
(run_control)

Errors:

---

bugfix for calculation of advective timestep (old version may cause wrong timesteps in case of
vertixcally stretched grids)
Attention: standard run-control output has changed!
(timestep)

File:

• palm/trunk/SOURCE/wall_fluxes.f90 (modified) (3 diffs)

palm/trunk/SOURCE/wall_fluxes.f90

@@ -20 +20 @@
 ! Current revisions:
 ! -----------------
-!
+! openacc loop and loop vector clauses removed
 !
 ! Former revisions:
@@ -270 +270 @@
 !--             All subsequent variables are computed for the respective
 !--             location where the respective flux is defined.
-                !$acc loop independent vector( 32 )
+                !$acc loop independent
                 DO  k = nzb_uvw_inner(j,i)+1, nzb_uvw_outer(j,i)
 
@@ -676 +676 @@
        !$acc kernels present( nzb_diff_s_inner, nzb_diff_s_outer, pt, rif_wall ) &
        !$acc         present( u, v, w, wall, wall_flux, z0 )
-       !$acc loop
        DO  i = i_left, i_right
           DO  j = j_south, j_north
-             !$acc loop vector(32)
              DO  k = min_inner, max_outer
 !