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field_summary_kernel_c.c
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field_summary_kernel_c.c
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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 C field summary kernel
* @author Wayne Gaudin
* @details The total mass, internal energy, kinetic energy and volume weighted
* pressure for the chunk is calculated.
*/
#include <stdio.h>
#include <stdlib.h>
#include "ftocmacros.h"
#include <math.h>
void field_summary_kernel_c_(int *xmin,
int *xmax,
int *ymin,
int *ymax,
double *volume,
double *density0,
double *energy0,
double *pressure,
double *xvel0,
double *yvel0,
double *vl,
double *mss,
double *ien,
double *ken,
double *prss)
{
int x_min=*xmin;
int x_max=*xmax;
int y_min=*ymin;
int y_max=*ymax;
double vol=*vl;
double mass=*mss;
double ie=*ien;
double ke=*ken;
double press=*prss;
int j,k,jv,kv;
double vsqrd,cell_vol,cell_mass;
vol=0.0;
mass=0.0;
ie=0.0;
ke=0.0;;
press=0.0;
for (k=y_min;k<=y_max;k++) {
#pragma ivdep
for (j=x_min;j<=x_max;j++) {
vsqrd=0.0;
for (kv=k;kv<=k+1;kv++) {
for (jv=j;jv<=j+1;jv++) {
vsqrd=vsqrd+0.25*(xvel0[FTNREF2D(jv ,kv ,x_max+5,x_min-2,y_min-2)]*xvel0[FTNREF2D(jv ,kv ,x_max+5,x_min-2,y_min-2)]
+yvel0[FTNREF2D(jv ,kv ,x_max+5,x_min-2,y_min-2)]*yvel0[FTNREF2D(jv ,kv ,x_max+5,x_min-2,y_min-2)]);
}
}
cell_vol=volume[FTNREF2D(j ,k ,x_max+4,x_min-2,y_min-2)];
cell_mass=cell_vol*density0[FTNREF2D(j ,k ,x_max+4,x_min-2,y_min-2)];
vol=vol+cell_vol;
mass=mass+cell_mass;
ie=ie+cell_mass*energy0[FTNREF2D(j ,k ,x_max+4,x_min-2,y_min-2)];
ke=ke+cell_mass*0.5*vsqrd;
press=press+cell_vol*pressure[FTNREF2D(j ,k ,x_max+4,x_min-2,y_min-2)];
}
}
*vl=vol;
*mss=mass;
*ien=ie;
*ken=ke;
*prss=press;
}