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build_field.cpp
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build_field.cpp
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/*
Crown Copyright 2012 AWE.
This file is part of CloverLeaf.
CloverLeaf 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.
CloverLeaf 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
CloverLeaf. If not, see http://www.gnu.org/licenses/.
*/
// @brief Allocates the data for each mesh chunk
// @author Wayne Gaudin
// @details The data fields for the mesh chunk are allocated based on the mesh
// size.
#include "build_field.h"
// Allocate Kokkos Views for the data arrays
void build_field(global_variables& globals) {
for (int tile = 0; tile < globals.tiles_per_chunk; ++tile) {
const size_t xrange = (globals.chunk.tiles[tile].t_xmax+2) - (globals.chunk.tiles[tile].t_xmin-2) + 1;
const size_t yrange = (globals.chunk.tiles[tile].t_ymax+2) - (globals.chunk.tiles[tile].t_ymin-2) + 1;
// (t_xmin-2:t_xmax+2, t_ymin-2:t_ymax+2)
new(&globals.chunk.tiles[tile].field.density0) Kokkos::View<double**>("density0", xrange, yrange);
new(&globals.chunk.tiles[tile].field.density1) Kokkos::View<double**>("density1", xrange, yrange);
new(&globals.chunk.tiles[tile].field.energy0) Kokkos::View<double**>("energy0", xrange, yrange);
new(&globals.chunk.tiles[tile].field.energy1) Kokkos::View<double**>("energy1", xrange, yrange);
new(&globals.chunk.tiles[tile].field.pressure) Kokkos::View<double**>("pressure", xrange, yrange);
new(&globals.chunk.tiles[tile].field.viscosity) Kokkos::View<double**>("viscosity", xrange, yrange);
new(&globals.chunk.tiles[tile].field.soundspeed) Kokkos::View<double**>("soundspeed", xrange, yrange);
// (t_xmin-2:t_xmax+3, t_ymin-2:t_ymax+3)
new(&globals.chunk.tiles[tile].field.xvel0) Kokkos::View<double**>("xvel0", xrange+1, yrange+1);
new(&globals.chunk.tiles[tile].field.xvel1) Kokkos::View<double**>("xvel1", xrange+1, yrange+1);
new(&globals.chunk.tiles[tile].field.yvel0) Kokkos::View<double**>("yvel0", xrange+1, yrange+1);
new(&globals.chunk.tiles[tile].field.yvel1) Kokkos::View<double**>("yvel1", xrange+1, yrange+1);
// (t_xmin-2:t_xmax+3, t_ymin-2:t_ymax+2)
new(&globals.chunk.tiles[tile].field.vol_flux_x) Kokkos::View<double**>("vol_flux_x", xrange+1, yrange);
new(&globals.chunk.tiles[tile].field.mass_flux_x) Kokkos::View<double**>("mass_flux_x", xrange+1, yrange);
// (t_xmin-2:t_xmax+2, t_ymin-2:t_ymax+3)
new(&globals.chunk.tiles[tile].field.vol_flux_y) Kokkos::View<double**>("vol_flux_y", xrange, yrange+1);
new(&globals.chunk.tiles[tile].field.mass_flux_y) Kokkos::View<double**>("mass_flux_y", xrange, yrange+1);
// (t_xmin-2:t_xmax+3, t_ymin-2:t_ymax+3)
new(&globals.chunk.tiles[tile].field.work_array1) Kokkos::View<double**>("work_array1", xrange+1, yrange+1);
new(&globals.chunk.tiles[tile].field.work_array2) Kokkos::View<double**>("work_array2", xrange+1, yrange+1);
new(&globals.chunk.tiles[tile].field.work_array3) Kokkos::View<double**>("work_array3", xrange+1, yrange+1);
new(&globals.chunk.tiles[tile].field.work_array4) Kokkos::View<double**>("work_array4", xrange+1, yrange+1);
new(&globals.chunk.tiles[tile].field.work_array5) Kokkos::View<double**>("work_array5", xrange+1, yrange+1);
new(&globals.chunk.tiles[tile].field.work_array6) Kokkos::View<double**>("work_array6", xrange+1, yrange+1);
new(&globals.chunk.tiles[tile].field.work_array7) Kokkos::View<double**>("work_array7", xrange+1, yrange+1);
// (t_xmin-2:t_xmax+2)
new(&globals.chunk.tiles[tile].field.cellx) Kokkos::View<double*>("cellx", xrange);
new(&globals.chunk.tiles[tile].field.celldx) Kokkos::View<double*>("celldx", xrange);
// (t_ymin-2:t_ymax+2)
new(&globals.chunk.tiles[tile].field.celly) Kokkos::View<double*>("celly", yrange);
new(&globals.chunk.tiles[tile].field.celldy) Kokkos::View<double*>("celldy", yrange);
// (t_xmin-2:t_xmax+3)
new(&globals.chunk.tiles[tile].field.vertexx) Kokkos::View<double*>("vertexx", xrange+1);
new(&globals.chunk.tiles[tile].field.vertexdx) Kokkos::View<double*>("vertexdx", xrange+1);
// (t_ymin-2:t_ymax+3)
new(&globals.chunk.tiles[tile].field.vertexy) Kokkos::View<double*>("vertexy", yrange+1);
new(&globals.chunk.tiles[tile].field.vertexdy) Kokkos::View<double*>("vertexdy", yrange+1);
// (t_xmin-2:t_xmax+2, t_ymin-2:t_ymax+2)
new(&globals.chunk.tiles[tile].field.volume) Kokkos::View<double**>("volume", xrange, yrange);
// (t_xmin-2:t_xmax+3, t_ymin-2:t_ymax+2)
new(&globals.chunk.tiles[tile].field.xarea) Kokkos::View<double**>("xarea", xrange+1, yrange);
// (t_xmin-2:t_xmax+2, t_ymin-2:t_ymax+3)
new(&globals.chunk.tiles[tile].field.yarea) Kokkos::View<double**>("yarea", xrange, yrange+1);
// 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
// Take a reference to the lowest structure, as Kokkos device cannot necessarily chase through the structure.
field_type& field = globals.chunk.tiles[tile].field;
// Nested loop over (t_ymin-2:t_ymax+3) and (t_xmin-2:t_xmax+3) inclusive
Kokkos::MDRangePolicy<Kokkos::Rank<2>> loop_bounds_1({0,0}, {xrange+1,yrange+1});
Kokkos::parallel_for("build_field_zero_1", loop_bounds_1, KOKKOS_LAMBDA (const int j, const int k) {
field.work_array1(j,k) = 0.0;
field.work_array2(j,k) = 0.0;
field.work_array3(j,k) = 0.0;
field.work_array4(j,k) = 0.0;
field.work_array5(j,k) = 0.0;
field.work_array6(j,k) = 0.0;
field.work_array7(j,k) = 0.0;
field.xvel0(j,k) = 0.0;
field.xvel1(j,k) = 0.0;
field.yvel0(j,k) = 0.0;
field.yvel1(j,k) = 0.0;
});
// Nested loop over (t_ymin-2:t_ymax+2) and (t_xmin-2:t_xmax+2) inclusive
Kokkos::MDRangePolicy<Kokkos::Rank<2>> loop_bounds_2({0,0}, {xrange,yrange});
Kokkos::parallel_for("build_field_zero_2", loop_bounds_2, KOKKOS_LAMBDA (const int j, const int k) {
field.density0(j,k) = 0.0;
field.density1(j,k) = 0.0;
field.energy0(j,k) = 0.0;
field.energy1(j,k) = 0.0;
field.pressure(j,k) = 0.0;
field.viscosity(j,k) = 0.0;
field.soundspeed(j,k) = 0.0;
field.volume(j,k) = 0.0;
});
// Nested loop over (t_ymin-2:t_ymax+2) and (t_xmin-2:t_xmax+3) inclusive
Kokkos::MDRangePolicy<Kokkos::Rank<2>> loop_bounds_3({0,0}, {xrange+1,yrange});
Kokkos::parallel_for("build_field_zero_3", loop_bounds_3, KOKKOS_LAMBDA (const int j, const int k) {
field.vol_flux_x(j,k) = 0.0;
field.mass_flux_x(j,k) = 0.0;
field.xarea(j,k) = 0.0;
});
// Nested loop over (t_ymin-2:t_ymax+3) and (t_xmin-2:t_xmax+2) inclusive
Kokkos::MDRangePolicy<Kokkos::Rank<2>> loop_bounds_4({0,0}, {xrange,yrange+1});
Kokkos::parallel_for("build_field_zero_4", loop_bounds_4, KOKKOS_LAMBDA (const int j, const int k) {
field.vol_flux_y(j,k) = 0.0;
field.mass_flux_y(j,k) = 0.0;
field.yarea(j,k) = 0.0;
});
// (t_xmin-2:t_xmax+2) inclusive
Kokkos::parallel_for("build_field_zero_5", xrange, KOKKOS_LAMBDA (const int j) {
field.cellx(j) = 0.0;
field.celldx(j) = 0.0;
});
// (t_ymin-2:t_ymax+2) inclusive
Kokkos::parallel_for("build_field_zero_6", yrange, KOKKOS_LAMBDA (const int k) {
field.celly(k) = 0.0;
field.celldy(k) = 0.0;
});
// (t_xmin-2:t_xmax+3) inclusive
Kokkos::parallel_for("build_field_zero_6", xrange+1, KOKKOS_LAMBDA (const int j) {
field.vertexx(j) = 0.0;
field.vertexdx(j) = 0.0;
});
// (t_ymin-2:t_ymax+3) inclusive
Kokkos::parallel_for("build_field_zero_7", yrange+1, KOKKOS_LAMBDA (const int k) {
field.vertexy(k) = 0.0;
field.vertexdy(k) = 0.0;
});
}
}