Changeset 1111 for palm/trunk/SOURCE/cuda_fft_interfaces.f90

Timestamp:

Mar 8, 2013 11:54:10 PM (11 years ago)

Author:

raasch

Message:

New:
---

GPU porting of pres, swap_timelevel. Adjustments of openACC directives.
Further porting of poisfft, which now runs completely on GPU without any
host/device data transfer for serial an parallel runs (but parallel runs
require data transfer before and after the MPI transpositions).
GPU-porting of tridiagonal solver:
tridiagonal routines split into extermal subroutines (instead using CONTAINS),
no distinction between parallel/non-parallel in poisfft and tridia any more,
tridia routines moved to end of file because of probable bug in PGI compiler
(otherwise "invalid device function" is indicated during runtime).
(cuda_fft_interfaces, fft_xy, flow_statistics, init_3d_model, palm, poisfft, pres, prognostic_equations, swap_timelevel, time_integration, transpose)
output of accelerator board information. (header)

optimization of tridia routines: constant elements and coefficients of tri are
stored in seperate arrays ddzuw and tric, last dimension of tri reduced from 5 to 2,
(init_grid, init_3d_model, modules, palm, poisfft)

poisfft_init is now called internally from poisfft,
(Makefile, Makefile_check, init_pegrid, poisfft, poisfft_hybrid)

CPU-time per grid point and timestep is output to CPU_MEASURES file
(cpu_statistics, modules, time_integration)

Changed:

---

resorting from/to array work changed, work now has 4 dimensions instead of 1 (transpose)
array diss allocated only if required (init_3d_model)

pressure boundary condition "Neumann+inhomo" removed from the code
(check_parameters, header, poisfft, poisfft_hybrid, pres)

Errors:

---

bugfix: dependency added for cuda_fft_interfaces (Makefile)
bugfix: CUDA fft plans adjusted for domain decomposition (before they always
used total domain) (fft_xy)

File:

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

palm/trunk/SOURCE/cuda_fft_interfaces.f90

@@ -20 +20 @@
 ! Current revisions:
 ! -----------------
-! 
+! idata and odata changed from 1d- to 3d-arrays
 !
 ! Former revisions:
@@ -87 +87 @@
 
           INTEGER(C_INT), value ::  plan
-          COMPLEX(dpk), device  ::  idata(*)
-          REAL(dpk), device     ::  odata(*)
+          COMPLEX(dpk), device  ::  idata(:,:,:)
+          REAL(dpk), device     ::  odata(:,:,:)
 
        END SUBROUTINE CUFFTEXECZ2D
@@ -103 +103 @@
 
           INTEGER(C_INT), value ::  plan
-          REAL(dpk), device     ::  idata(*)
-          COMPLEX(dpk), device  ::  odata(*)
+          REAL(dpk), device     ::  idata(:,:,:)
+          COMPLEX(dpk), device  ::  odata(:,:,:)
 
        END SUBROUTINE CUFFTEXECD2Z