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build_field.f90
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build_field.f90
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!Crown Copyright 2014 AWE.
!
! This file is part of TeaLeaf.
!
! TeaLeaf is free software: you can redistribute it and/or modify it under
! the terms of the GNU General Public License as published by the
! Free Software Foundation, either version 3 of the License, or (at your option)
! any later version.
!
! TeaLeaf is distributed in the hope that it will be useful, but
! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
! FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
! details.
!
! You should have received a copy of the GNU General Public License along with
! TeaLeaf. If not, see http://www.gnu.org/licenses/.
!> @brief Allocates the data for each mesh chunk
!> @author David Beckingsale, Wayne Gaudin
!> @details The data fields for the mesh chunk are allocated based on the mesh
!> size.
SUBROUTINE build_field()
USE tea_module
IMPLICIT NONE
INTEGER :: j,k
INTEGER :: t
!$OMP PARALLEL
!$OMP DO
DO t=1,tiles_per_task
chunk%tiles(t)%field%x_min=1
chunk%tiles(t)%field%y_min=1
chunk%tiles(t)%field%x_max=chunk%tiles(t)%x_cells
chunk%tiles(t)%field%y_max=chunk%tiles(t)%y_cells
! TODO only allocate extra halo on external tiles
ALLOCATE(chunk%tiles(t)%field%density &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%energy0 &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%energy1 &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%u &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%u0 &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_r &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_r_store &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_Mi &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_w &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_z &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_utemp &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_rtemp &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_Di &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_Kx &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_Ky &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_p &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%vector_sd &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%row_sums &
(chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth: &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth))
ALLOCATE(chunk%tiles(t)%field%tri_cp &
(chunk%tiles(t)%field%x_min:chunk%tiles(t)%field%x_max, &
chunk%tiles(t)%field%y_min:chunk%tiles(t)%field%y_max))
ALLOCATE(chunk%tiles(t)%field%tri_bfp &
(chunk%tiles(t)%field%x_min:chunk%tiles(t)%field%x_max, &
chunk%tiles(t)%field%y_min:chunk%tiles(t)%field%y_max))
ALLOCATE(chunk%tiles(t)%field%cellx (chunk%tiles(t)%field%x_min-2:chunk%tiles(t)%field%x_max+2))
ALLOCATE(chunk%tiles(t)%field%celly (chunk%tiles(t)%field%y_min-2:chunk%tiles(t)%field%y_max+2))
ALLOCATE(chunk%tiles(t)%field%vertexx (chunk%tiles(t)%field%x_min-2:chunk%tiles(t)%field%x_max+3))
ALLOCATE(chunk%tiles(t)%field%vertexy (chunk%tiles(t)%field%y_min-2:chunk%tiles(t)%field%y_max+3))
ALLOCATE(chunk%tiles(t)%field%celldx (chunk%tiles(t)%field%x_min-2:chunk%tiles(t)%field%x_max+2))
ALLOCATE(chunk%tiles(t)%field%celldy (chunk%tiles(t)%field%y_min-2:chunk%tiles(t)%field%y_max+2))
ALLOCATE(chunk%tiles(t)%field%vertexdx(chunk%tiles(t)%field%x_min-2:chunk%tiles(t)%field%x_max+3))
ALLOCATE(chunk%tiles(t)%field%vertexdy(chunk%tiles(t)%field%y_min-2:chunk%tiles(t)%field%y_max+3))
ALLOCATE(chunk%tiles(t)%field%volume (chunk%tiles(t)%field%x_min-2:chunk%tiles(t)%field%x_max+2, &
chunk%tiles(t)%field%y_min-2:chunk%tiles(t)%field%y_max+2))
ALLOCATE(chunk%tiles(t)%field%xarea (chunk%tiles(t)%field%x_min-2:chunk%tiles(t)%field%x_max+3, &
chunk%tiles(t)%field%y_min-2:chunk%tiles(t)%field%y_max+2))
ALLOCATE(chunk%tiles(t)%field%yarea (chunk%tiles(t)%field%x_min-2:chunk%tiles(t)%field%x_max+2, &
chunk%tiles(t)%field%y_min-2:chunk%tiles(t)%field%y_max+3))
! TODO nested parallelism would require nested zero allocation...?
! Zeroing isn't strictly neccessary but it ensures physical pages
! are allocated. This prevents first touch overheads in the main code
! cycle which can skew timings in the first step
! Explicit loop limits ensures correct NUMA access, which array syntax does
! not
!$OMP PARALLEL
!$OMP DO
DO k=chunk%tiles(t)%field%y_min-chunk%halo_exchange_depth, &
chunk%tiles(t)%field%y_max+chunk%halo_exchange_depth
DO j=chunk%tiles(t)%field%x_min-chunk%halo_exchange_depth, &
chunk%tiles(t)%field%x_max+chunk%halo_exchange_depth
chunk%tiles(t)%field%density(j,k)=0.0
chunk%tiles(t)%field%energy0(j,k)=0.0
chunk%tiles(t)%field%energy1(j,k)=0.0
chunk%tiles(t)%field%u(j,k)=0.0
chunk%tiles(t)%field%u0(j,k)=0.0
chunk%tiles(t)%field%vector_r(j,k)=0.0
chunk%tiles(t)%field%vector_r_store(j,k)=0.0
chunk%tiles(t)%field%vector_Mi(j,k)=0.0
chunk%tiles(t)%field%vector_w(j,k)=0.0
chunk%tiles(t)%field%vector_z(j,k)=0.0
chunk%tiles(t)%field%vector_utemp(j,k)=0.0
chunk%tiles(t)%field%vector_rtemp(j,k)=0.0
chunk%tiles(t)%field%vector_Di(j,k)=0.0
chunk%tiles(t)%field%vector_Kx(j,k)=0.0
chunk%tiles(t)%field%vector_Ky(j,k)=0.0
chunk%tiles(t)%field%vector_p(j,k)=0.0
chunk%tiles(t)%field%vector_sd(j,k)=0.0
chunk%tiles(t)%field%row_sums(j,k)=0.0
ENDDO
ENDDO
!$OMP ENDDO
!$OMP DO
DO k=chunk%tiles(t)%field%y_min,chunk%tiles(t)%field%y_max
DO j=chunk%tiles(t)%field%x_min,chunk%tiles(t)%field%x_max
chunk%tiles(t)%field%tri_cp(j,k)=0.0
chunk%tiles(t)%field%tri_bfp(j,k)=0.0
ENDDO
ENDDO
!$OMP ENDDO
!$OMP DO
DO k=chunk%tiles(t)%field%y_min-2,chunk%tiles(t)%field%y_max+2
DO j=chunk%tiles(t)%field%x_min-2,chunk%tiles(t)%field%x_max+2
chunk%tiles(t)%field%volume(j,k)=0.0
ENDDO
ENDDO
!$OMP ENDDO
!$OMP DO
DO k=chunk%tiles(t)%field%y_min-2,chunk%tiles(t)%field%y_max+2
DO j=chunk%tiles(t)%field%x_min-2,chunk%tiles(t)%field%x_max+3
chunk%tiles(t)%field%xarea(j,k)=0.0
ENDDO
ENDDO
!$OMP END DO
!$OMP DO
DO k=chunk%tiles(t)%field%y_min-2,chunk%tiles(t)%field%y_max+3
DO j=chunk%tiles(t)%field%x_min-2,chunk%tiles(t)%field%x_max+2
chunk%tiles(t)%field%yarea(j,k)=0.0
ENDDO
ENDDO
!$OMP END DO
!$OMP DO
DO j=chunk%tiles(t)%field%x_min-2,chunk%tiles(t)%field%x_max+2
chunk%tiles(t)%field%cellx(j)=0.0
chunk%tiles(t)%field%celldx(j)=0.0
ENDDO
!$OMP END DO
!$OMP DO
DO k=chunk%tiles(t)%field%y_min-2,chunk%tiles(t)%field%y_max+2
chunk%tiles(t)%field%celly(k)=0.0
chunk%tiles(t)%field%celldy(k)=0.0
ENDDO
!$OMP END DO
!$OMP DO
DO j=chunk%tiles(t)%field%x_min-2,chunk%tiles(t)%field%x_max+3
chunk%tiles(t)%field%vertexx(j)=0.0
chunk%tiles(t)%field%vertexdx(j)=0.0
ENDDO
!$OMP END DO
!$OMP DO
DO k=chunk%tiles(t)%field%y_min-2,chunk%tiles(t)%field%y_max+3
chunk%tiles(t)%field%vertexy(k)=0.0
chunk%tiles(t)%field%vertexdy(k)=0.0
ENDDO
!$OMP END DO
!$OMP END PARALLEL
ENDDO
!$OMP END DO
!$OMP END PARALLEL
END SUBROUTINE build_field