Revision a4173dafdcfce8cf48d5cbea01fd49686efebe36 authored by Lijie Han on 04 July 2007, 00:02:42 UTC, committed by Lijie Han on 04 July 2007, 00:02:42 UTC
1 parent 3b48492
Composition_related.c
/*
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
*<LicenseText>
*
* CitcomS by Louis Moresi, Shijie Zhong, Lijie Han, Eh Tan,
* Clint Conrad, Michael Gurnis, and Eun-seo Choi.
* Copyright (C) 1994-2005, California Institute of Technology.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*</LicenseText>
*
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#include <math.h>
#include "global_defs.h"
#include "parsing.h"
#include "parallel_related.h"
#include "composition_related.h"
static void allocate_composition_memory(struct All_variables *E);
static void compute_elemental_composition_ratio_method(struct All_variables *E);
static void init_composition(struct All_variables *E);
static void init_bulk_composition(struct All_variables *E);
static void check_initial_composition(struct All_variables *E);
static void map_composition_to_nodes(struct All_variables *E);
void composition_input(struct All_variables *E)
{
int m = E->parallel.me;
input_int("chemical_buoyancy",&(E->composition.ichemical_buoyancy),
"1,0,nomax",m);
if (E->composition.ichemical_buoyancy==1) {
input_double("buoyancy_ratio",
&(E->composition.buoyancy_ratio),"1.0",m);
/* ibuoy_type=0 (absolute method) */
/* ibuoy_type=1 (ratio method) */
input_int("buoy_type",&(E->composition.ibuoy_type),"1,0,nomax",m);
if (E->composition.ibuoy_type!=1) {
fprintf(stderr,"Terror-Sorry, only ratio method allowed now\n");
fflush(stderr);
parallel_process_termination();
}
input_int("reset_initial_composition",
&(E->composition.ireset_initial_composition),"0",m);
}
/* compositional rheology */
/* icompositional_rheology=0 (off) */
/* icompositional_rheology=1 (on) */
E->composition.icompositional_rheology = 0;
/*
input_int("compositional_rheology",
&(E->composition.icompositional_rheology),"1,0,nomax",m);
if (E->composition.icompositional_rheology==1) {
input_double("compositional_prefactor",
&(E->composition.compositional_rheology_prefactor),
"1.0",m);
}
*/
return;
}
void composition_setup(struct All_variables *E)
{
if (E->composition.on) {
allocate_composition_memory(E);
init_composition(E);
}
return;
}
void write_composition_instructions(struct All_variables *E)
{
E->composition.on = 0;
if (E->composition.ichemical_buoyancy==1 ||
E->composition.icompositional_rheology)
E->composition.on = 1;
if (E->composition.on) {
if (E->trace.nflavors < 1) {
fprintf(E->trace.fpt, "Tracer flavors must be greater than 1 to track composition\n");
parallel_process_termination();
}
if (E->composition.ichemical_buoyancy==0)
fprintf(E->trace.fpt,"Passive Tracers\n");
if (E->composition.ichemical_buoyancy==1)
fprintf(E->trace.fpt,"Active Tracers\n");
if (E->composition.ibuoy_type==1) fprintf(E->trace.fpt,"Ratio Method\n");
if (E->composition.ibuoy_type==0) fprintf(E->trace.fpt,"Absolute Method\n");
fprintf(E->trace.fpt,"Buoyancy Ratio: %f\n", E->composition.buoyancy_ratio);
if (E->composition.ireset_initial_composition==0)
fprintf(E->trace.fpt,"Using old initial composition from tracer files\n");
else
fprintf(E->trace.fpt,"Resetting initial composition\n");
/*
if (E->composition.icompositional_rheology==0) {
fprintf(E->trace.fpt,"Compositional Rheology - OFF\n");
}
else if (E->composition.icompositional_rheology>0) {
fprintf(E->trace.fpt,"Compositional Rheology - ON\n");
fprintf(E->trace.fpt,"Compositional Prefactor: %f\n",
E->composition.compositional_rheology_prefactor);
}
*/
fflush(E->trace.fpt);
}
return;
}
/************ FILL COMPOSITION ************************/
void fill_composition(struct All_variables *E)
{
/* XXX: Currently, only the ratio method works here. */
/* Will have to come back here to include the absolute method. */
/* ratio method */
if (E->composition.ibuoy_type==1) {
compute_elemental_composition_ratio_method(E);
}
/* absolute method */
if (E->composition.ibuoy_type!=1) {
fprintf(E->trace.fpt,"Error(compute...)-only ratio method now\n");
fflush(E->trace.fpt);
exit(10);
}
/* Map elemental composition to nodal points */
map_composition_to_nodes(E);
return;
}
static void allocate_composition_memory(struct All_variables *E)
{
int j;
/* allocat memory for composition fields at the nodes and elements */
for (j=1;j<=E->sphere.caps_per_proc;j++) {
if ((E->composition.comp_el[j]=(double *)malloc((E->lmesh.nel+1)*sizeof(double)))==NULL) {
fprintf(E->trace.fpt,"AKM(allocate_composition_memory)-no memory 8989y\n");
fflush(E->trace.fpt);
exit(10);
}
if ((E->composition.comp_node[j]=(double *)malloc((E->lmesh.nno+1)*sizeof(double)))==NULL) {
fprintf(E->trace.fpt,"AKM(allocate_composition_memory)-no memory 983rk\n");
fflush(E->trace.fpt);
exit(10);
}
}
return;
}
static void init_composition(struct All_variables *E)
{
if (E->composition.ichemical_buoyancy==1 && E->composition.ibuoy_type==1) {
fill_composition(E);
check_initial_composition(E);
init_bulk_composition(E);
}
return;
}
static void check_initial_composition(struct All_variables *E)
{
/* check empty element if using ratio method */
if (E->composition.ibuoy_type == 1) {
if (E->trace.istat_iempty) {
fprintf(E->trace.fpt,"WARNING(check_initial_composition)-number of tracers is REALLY LOW\n");
fflush(E->trace.fpt);
fprintf(stderr,"WARNING(check_initial_composition)-number of tracers is REALLY LOW\n");
exit(10);
}
}
return;
}
/*********** COMPUTE ELEMENTAL COMPOSITION RATIO METHOD ***/
/* */
/* This function computes the composition per element. */
/* The concentration of material i in an element is */
/* defined as: */
/* (# of tracers of flavor i) / (# of all tracers) */
static void compute_elemental_composition_ratio_method(struct All_variables *E)
{
int j, e, flavor, numtracers;
int iempty = 0;
/* XXX: currently only two composition is supported */
if (E->trace.nflavors != 2) {
fprintf(E->trace.fpt, "Sorry - Only two flavors of tracers is supported\n");
fflush(E->trace.fpt);
parallel_process_termination();
}
for (j=1; j<=E->sphere.caps_per_proc; j++) {
for (e=1; e<=E->lmesh.nel; e++) {
numtracers = 0;
for (flavor=0; flavor<E->trace.nflavors; flavor++)
numtracers += E->trace.ntracer_flavor[j][flavor][e];
/* Check for empty entries and compute ratio. */
/* If no tracers are in an element, skip this element, */
/* use previous composition. */
if (numtracers == 0) {
iempty++;
continue;
}
/* XXX: generalize for more than one composition */
flavor = 1;
E->composition.comp_el[j][e] =
E->trace.ntracer_flavor[j][flavor][e] / (double)numtracers;
}
if (iempty) {
if ((1.0*iempty/E->lmesh.nel)>0.80) {
fprintf(E->trace.fpt,"WARNING(compute_elemental...)-number of tracers is REALLY LOW\n");
fflush(E->trace.fpt);
if (E->trace.itracer_warnings==1) exit(10);
}
}
} /* end j */
E->trace.istat_iempty += iempty;
return;
}
/********** MAP COMPOSITION TO NODES ****************/
/* */
static void map_composition_to_nodes(struct All_variables *E)
{
int kk;
int nelem, nodenum;
int j;
for (j=1;j<=E->sphere.caps_per_proc;j++) {
/* first, initialize node array */
for (kk=1;kk<=E->lmesh.nno;kk++)
E->composition.comp_node[j][kk]=0.0;
/* Loop through all elements */
for (nelem=1;nelem<=E->lmesh.nel;nelem++) {
/* for each element, loop through element nodes */
/* weight composition */
for (nodenum=1;nodenum<=8;nodenum++) {
E->composition.comp_node[j][E->ien[j][nelem].node[nodenum]] +=
E->composition.comp_el[j][nelem]*
E->TWW[E->mesh.levmax][j][nelem].node[nodenum];
}
} /* end nelem */
} /* end j */
(E->exchange_node_d)(E,E->composition.comp_node,E->mesh.levmax);
/* Divide by nodal volume */
for (j=1;j<=E->sphere.caps_per_proc;j++) {
for (kk=1;kk<=E->lmesh.nno;kk++)
E->composition.comp_node[j][kk] *= E->MASS[E->mesh.levmax][j][kk];
/* testing */
/**
for (kk=1;kk<=E->lmesh.nel;kk++) {
fprintf(E->trace.fpt,"%d %f\n",kk,E->composition.comp_el[j][kk]);
}
for (kk=1;kk<=E->lmesh.nno;kk++) {
fprintf(E->trace.fpt,"%d %f %f\n",kk,E->sx[j][3][kk],E->composition.comp_node[j][kk]);
}
fflush(E->trace.fpt);
/**/
} /* end j */
return;
}
/*********** GET BULK COMPOSITION *******************************/
static void init_bulk_composition(struct All_variables *E)
{
char output_file[200];
char input_s[1000];
double return_bulk_value_d();
double volume;
double rdum1;
double rdum2;
double rdum3;
int ival=0;
int idum0, idum1;
FILE *fp;
/* ival=0 returns integral not average */
volume = return_bulk_value_d(E,E->composition.comp_node,ival);
E->composition.bulk_composition = volume;
E->composition.initial_bulk_composition = volume;
/* If retarting tracers, the initital bulk composition is read from file */
if (E->trace.ic_method == 2 &&
!E->composition.ireset_initial_composition) {
sprintf(output_file,"%s.comp_el.%d.%d",E->control.old_P_file,
E->parallel.me, E->monitor.solution_cycles);
fp=fopen(output_file,"r");
fgets(input_s,200,fp);
sscanf(input_s,"%d %d %lf %lf %lf",
&idum0,&idum1,&rdum1,&rdum2,&rdum3);
E->composition.initial_bulk_composition = rdum2;
fclose(fp);
}
return;
}
void get_bulk_composition(struct All_variables *E)
{
double return_bulk_value_d();
double volume;
const int ival = 0;
/* ival=0 returns integral not average */
volume=return_bulk_value_d(E,E->composition.comp_node,ival);
E->composition.bulk_composition=volume;
E->composition.error_fraction=((volume-E->composition.initial_bulk_composition)/
E->composition.initial_bulk_composition);
return;
}
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