Changeset 1257 for palm/trunk/SOURCE/prognostic_equations.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/prognostic_equations.f90 (modified) (6 diffs)

palm/trunk/SOURCE/prognostic_equations.f90

@@ -20 +20 @@
 ! Current revisions:
 ! ------------------
-! 
+! openacc loop vector clauses removed, independent clauses added
 !
 ! Former revisions:
@@ -1536 +1536 @@
 !-- Prognostic equation for u-velocity component
     !$acc kernels present( nzb_u_inner, rdf, tend, tu_m, u, ug, u_p )
-    !$acc loop
+    !$acc loop independent
     DO  i = i_left, i_right
+       !$acc loop independent
        DO  j = j_south, j_north
-          !$acc loop vector( 32 )
+          !$acc loop independent
           DO  k = 1, nzt
              IF ( k > nzb_u_inner(j,i) )  THEN
@@ -1602 +1603 @@
 !-- Prognostic equation for v-velocity component
     !$acc kernels present( nzb_v_inner, rdf, tend, tv_m, v, vg, v_p )
-    !$acc loop
+    !$acc loop independent
     DO  i = i_left, i_right
+       !$acc loop independent
        DO  j = j_south, j_north
-          !$acc loop vector( 32 )
+          !$acc loop independent
           DO  k = 1, nzt
              IF ( k > nzb_v_inner(j,i) )  THEN
@@ -1664 +1666 @@
 !-- Prognostic equation for w-velocity component
     !$acc kernels present( nzb_w_inner, rdf, tend, tw_m, w, w_p )
-    !$acc loop
+    !$acc loop independent
     DO  i = i_left, i_right
+       !$acc loop independent
        DO  j = j_south, j_north
-          !$acc loop vector( 32 )
+          !$acc loop independent
           DO  k = 1, nzt-1
              IF ( k > nzb_w_inner(j,i) )  THEN
@@ -1762 +1765 @@
        !$acc kernels present( nzb_s_inner, rdf_sc, ptdf_x, ptdf_y, pt_init ) &
        !$acc         present( tend, tpt_m, pt, pt_p )
-       !$acc loop
+       !$acc loop independent
        DO  i = i_left, i_right
+          !$acc loop independent
           DO  j = j_south, j_north
-             !$acc loop vector( 32 )
+             !$acc loop independent
              DO  k = 1, nzt
                 IF ( k > nzb_s_inner(j,i) )  THEN
@@ -2012 +2016 @@
 !--    value is reduced by 90%.
        !$acc kernels present( e, e_p, nzb_s_inner, tend, te_m )
-       !$acc loop
+       !$acc loop independent
        DO  i = i_left, i_right
+          !$acc loop independent
           DO  j = j_south, j_north
-             !$acc loop vector( 32 )
+             !$acc loop independent
              DO  k = 1, nzt
                 IF ( k > nzb_s_inner(j,i) )  THEN