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|
/*
* PASRC.C - handle source files for PANACEA
* - source files for PANACEA are special PDB files
* - written by source file builder for this purpose
* - individual PANACEA package make requests to provide the
* - source information and these routines know nothing about
* - the packages and their purposes
*
* Source Version: 2.0
* Software Release #92-0043
*
*/
#include "cpyright.h"
#include "panace.h"
/*--------------------------------------------------------------------------*/
/* PA_INTERP_TYPE - interpolate values of a certain type */
#define PA_INTERP_TYPE(v, type, svp, t, t0, t1, t2, t3) \
{int i; \
type *pv; \
type *d0, *d1, *d2, *d3, **pd; \
double s1, s2; \
double dt10, dt21, dt32, xd1, xd2; \
double xm1, xm2, xm3; \
double xf0, xf1, xf2, xf3; \
pv = (type *) v; \
pd = (type **) svp->queue; \
d0 = pd[0]; \
d1 = pd[1]; \
d2 = pd[2]; \
d3 = pd[3]; \
if (svp->interpolate) \
{dt10 = t1 - t0; \
dt21 = t2 - t1; \
dt32 = t3 - t2; \
s1 = (t - t1)/dt21; \
s2 = 1.0 - s1; \
for (i = ni; i < nf; i++) \
{xd1 = 0.0; \
xd2 = 0.0; \
xf0 = (double) d0[i]; \
xf1 = (double) d1[i]; \
xf2 = (double) d2[i]; \
xf3 = (double) d3[i]; \
xm1 = (xf1 - xf0)/dt10; \
xm2 = (xf2 - xf1)/dt21; \
xm3 = (xf3 - xf2)/dt32; \
if (xm1*xm2 > 0.0) \
{xd1 = (dt21*xm1 + dt10*xm2)/(dt10 + dt21); \
if (xd1/xm1 > 3.0) \
xd1 = 3.0*xm1; \
if (xd1/xm2 > 3.0) \
xd1 = 3.0*xm2;}; \
if (xm2*xm3 > 0.0) \
{xd2 = (dt32*xm2 + dt21*xm3)/(dt21 + dt32); \
if (xd2/xm2 > 3.0) \
xd2 = 3.0*xm2; \
if (xd2/xm3 > 3.0) \
xd2 = 3.0*xm3;}; \
pv[i] = (type) ((xf1 + (2.0*xf1 + dt21*xd1)*s1)*s2*s2 + \
(xf2 + (2.0*xf2 - dt21*xd2)*s2)*s1*s1);};} \
else if ((t <= t2) && (t2 < t+dt)) \
{for (i = ni; i < nf; i++) \
pv[i] = (type) d2[i];};}
/*--------------------------------------------------------------------------*/
PA_src_variable
**SV_List;
int
N_Variables;
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PA_INIT_SOURCES - scan the iv_spec_lst for source files and initialize the
* - various buffers for each of the source variables
*/
void _PA_init_sources(t, dt)
double t, dt;
{int j, N_sf, n_vars, count;
char *name, *token, *iv_file, **files, *s;
char title[MAXLINE], title_name[MAXLINE];
int n_times;
double *times;
PA_iv_specification *ivs;
PDBfile *fp;
/* count up the number of source files to be managed and the
* number of source variables
*/
for (N_sf = 0, ivs = iv_spec_lst;
ivs != NULL;
ivs = ivs->next, N_sf++);
files = FMAKE_N(char *, N_sf, "_PA_INIT_SOURCES:files");
N_Variables = 0;
N_sf = 0;
for (ivs = iv_spec_lst; ivs != NULL; ivs = ivs->next)
{iv_file = ivs->file;
if (iv_file == NULL)
continue;
if (*(iv_file) == '\0')
continue;
for (j = 0; j < N_sf; j++)
if (strcmp(iv_file, files[j]) == 0)
break;
if ((j < N_sf) && (N_sf > 0))
continue;
files[N_sf++] = iv_file;
fp = PD_open(iv_file, "r");
PA_ERR((fp == NULL),
"MISSING SOURCE FILE - %s", iv_file);
PA_ERR(!PD_read(fp, "N_Variables", &n_vars),
"N_VARIABLES MISSING FROM %s", iv_file);
N_Variables += n_vars;
PD_close(fp);};
/* loop over all source files and make a list of PA_src_variables */
SV_List = FMAKE_N(PA_src_variable *, N_Variables,
"_PA_INIT_SOURCES:List");
n_vars = 0;
for (j = 0; j < N_sf; j++)
{fp = PD_open(files[j], "r");
/* NOTE: this has N_Variables greater than the number actually referenced
* this give more efficiency but one has to be careful when
* checking SV_List for NULL entries
*/
for (ivs = iv_spec_lst; ivs != NULL; ivs = ivs->next)
{if (ivs->file == NULL)
continue;
count = 0;
while (TRUE)
{sprintf(title_name, "src%d", count);
if (PD_read(fp, title_name, title) == FALSE)
break;
name = SC_strsavef(SC_strtok(title, "|", s),
"char*:_PA_INIT_SOURCES:title");
if ((ivs->type != 'v') ||
(strcmp(name, ivs->name) == 0))
{n_times = SC_stoi(SC_strtok(NULL, "|", s));
token = SC_strtok(NULL, "|", s);
times = FMAKE_N(double, n_times,
"_PA_INIT_SOURCES:times");
PA_ERR(!PD_read(fp, token, times),
"CAN'T READ %s IN %s - INIT-SOURCES",
token, files[j]);
PA_scale_array(times, n_times, unit[SEC]);
/* install this source variable in the array, SV_List and have the
* entry in iv_spec_lst point to it
*/
SV_List[n_vars] = _PA_mk_src_variable(name,
count, n_times,
times, fp);
ivs->index = n_vars;
SV_List[n_vars]->interpolate = ivs->interpolate;
/* initialize the queue buffer for this PA_src_variable */
_PA_init_queue(SV_List[n_vars], t, dt);
/* the iv_spec needs to know about the size of the source variable
* for inits in PA_CONNECT
*/
ivs->num = SV_List[n_vars]->size;
n_vars++;};
count++;};};};
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PA_GET_SOURCE - given the name of a source variable return a pointer
* - to the source variable data if it is there
* - and return NULL if not
* - remember the index and use the start_flag to reset it
* - so that multiple sources with the same name may be used
*/
PA_src_variable *PA_get_source(s, start_flag)
char *s;
int start_flag;
{PA_src_variable *svp;
static int i = 0;
if (start_flag)
i = 0;
/* NOTE: N_Variables is greater than the number actually referenced
* this give more efficiency but one has to be careful when
* checking SV_List for NULL entries
*/
for (; i < N_Variables; i++)
{svp = SV_List[i];
if (svp == NULL)
continue;
if (strcmp(s, svp->name) == 0)
return(svp);};
return(NULL);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PA_GET_IV_SOURCE - this routine gets the named PA_iv_specification */
PA_iv_specification *PA_get_iv_source(name)
char *name;
{return(PA_find_iv_source(name, 0));}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PA_FIND_IV_SOURCE - this routine gets the named PA_iv_specification */
PA_iv_specification *PA_find_iv_source(name, off)
char *name;
int off;
{PA_iv_specification *sp;
double *data;
/* check for the named iv_spec in the given zone/region */
for (sp = iv_spec_lst; sp != NULL; sp = sp->next)
{data = sp->data;
if (data == NULL)
continue;
if (!strcmp(sp->name, name))
{sp->index = (int) data[off];
return(sp);};};
return(NULL);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PA_INIT_QUEUE - initialize a queue of data for
* - PA_src_variables so that interpolations come off nicely
* - and source file access is minimized
*/
void _PA_init_queue(svp, t, dt)
PA_src_variable *svp;
double t, dt;
{syment *desc;
char *token, title[MAXLINE], var_name[MAXLINE], *s;
double conv;
double *times, **pd, *qtimes;
int check, indx, iv, i, nv, n_times, var_indx;
int psz, ssz, fsz;
PA_variable *pp;
PDBfile *fp;
fp = svp->file;
var_indx = svp->var_index;
indx = svp->index;
n_times = svp->n_times;
times = svp->times;
qtimes = svp->queue_times;
pd = svp->queue;
/* lookup up the PA_variable that this PA_src_variable is controlling
* and set the conversion from CGS units to INTERNAL units
*/
strcpy(var_name, svp->name);
token = SC_strtok(var_name, "(", s);
pp = PA_inquire_variable(token);
if (pp != NULL)
{conv = svp->conv_fact = PA_VARIABLE_INT_UNIT(pp);
svp->pp = pp;}
else
{conv = svp->conv_fact = 1.0;
svp->pp = NULL;};
/* find the index of the first source time less than the
* current problem time
*/
indx = PA_find_index(times, t, n_times);
/* load the queue */
desc = NULL;
if (indx == 0)
{sprintf(title, "src%d:%d", var_indx, indx);
pd[0] = pd[1] = pd[2] = (double *) _PA_pdb_read(fp, title, &desc,
NULL);
ssz = desc->number;
PA_scale_array(pd[2], ssz, conv);
qtimes[0] = -2.0e100;
qtimes[1] = -1.0e100;
qtimes[2] = times[indx];
indx++;
if (n_times != 1)
{sprintf(title, "src%d:%d", var_indx, indx);
pd[3] = (double *) _PA_pdb_read(fp, title, &desc, NULL);
ssz = desc->number;
PA_scale_array(pd[3], ssz, conv);
qtimes[3] = times[indx];
indx++;}
else
{qtimes[3] = 1.0e100;
pd[3] = pd[2];};}
else
{nv = min(4, n_times - indx + 2);
if (indx > 1)
{iv = 0;
check = FALSE;
indx -= 2;}
else
{iv = 1;
check = TRUE;
indx--;};
/* load data into the iv'th thru nv'th places in the queue */
for (i = iv; i < nv; i++)
{sprintf(title, "src%d:%d", var_indx, indx);
pd[i] = (double *) _PA_pdb_read(fp, title, &desc, NULL);
PA_ERR((pd[i] == NULL),
"MISSING SOURCE DATA %s - _PA_INIT_QUEUE", title);
ssz = desc->number;
PA_scale_array(pd[i], ssz, conv);
qtimes[i] = times[indx];
indx++;};
/* if at the end equate the missing pointers to the last valid one */
for (; i < 4; i++)
{pd[i] = pd[nv-1];
qtimes[i] = qtimes[i-1] + 1.0e100;};
/* check the first place in the queue one last time */
if (check)
{pd[0] = pd[1];
qtimes[0] = qtimes[1] - 1.0e100;};};
/* replace the variable's syment with the file syment */
if (PA_VARIABLE_DESC(pp) != NULL)
_PD_rl_syment(PA_VARIABLE_DESC(pp));
PA_VARIABLE_DESC(pp) = desc;
/* force consistency by recomputing the variable size */
ssz = _PA_dims_to_list(PA_VARIABLE_DESC(pp)->dimensions,
PA_VARIABLE_DIMS(pp));
PA_VARIABLE_SIZE(pp) = ssz;
/* reset the PA_src_variable index to the next one to read */
svp->index = indx;
/* get the size out of the desc */
svp->size = ssz;
/* set the PA_variable's size to match (also check for consistency)
* the source's size
*/
if (pp != NULL)
{psz = PA_VARIABLE_SIZE(pp);
fsz = PA_VARIABLE_DESC(pp)->number;
PA_ERR((ssz == 0),
"SOURCE VARIABLE %s HAS ZERO SIZE - _PA_INIT_QUEUE",
token);
PA_ERR((((psz != 0) && (psz != ssz)) ||
((fsz != 0) && (fsz != ssz))),
"INCONSISTENT SOURCE VARIABLE SIZE %s - _PA_INIT_QUEUE",
token);
PA_VARIABLE_SIZE(pp) = ssz;
PA_VARIABLE_DESC(pp)->number = ssz;};
/* initialize the panacea variable by interpolating from this
* initialized queue
*/
/* do this only if the application requests a connection
PA_CONNECT(v, var_name, FALSE);
PA_interp_src(v, svp, 0, ssz, t, dt);
*/
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PA_STEP_QUEUE - buffer a new entry into the queue for the specified
* - PA_src_variable
*/
void _PA_step_queue(svp, t)
PA_src_variable *svp;
double t;
{syment *desc;
int indx, i, n_times, var_indx, ssz;
double *times, **pd, *qtimes, conv;
PDBfile *fp;
char title[MAXLINE];
var_indx = svp->var_index;
indx = svp->index;
n_times = svp->n_times;
times = svp->times;
qtimes = svp->queue_times;
conv = svp->conv_fact;
fp = svp->file;
pd = svp->queue;
/* loop thru the source data until it is exhausted or until
* the appropriate time is found
*/
while (t > qtimes[2])
/* check on whether or not to free the first slot in the queue
* if indx is less than 4 the first slot in the queue is a pointer to
* the second slot in the queue
*/
{if (indx > 3)
{SFREE_N(pd[0], svp->size);};
/* shift everybody up the queue by one */
for (i = 1; i < 4; i++)
{pd[i-1] = pd[i];
qtimes[i-1] = qtimes[i];};
/* read the next entry into the queue */
if (indx < n_times)
{sprintf(title, "src%d:%d", var_indx, indx);
pd[3] = (double *) _PA_pdb_read(fp, title, &desc, NULL);
ssz = desc->number;
PA_scale_array(pd[3], ssz, conv);
qtimes[3] = times[indx];
indx++;}
else
{indx++;
pd[3] = pd[2];
qtimes[3] = qtimes[2] + 1.0e100;};};
/* reset the PA_src_variable index to the next one to read */
svp->index = indx;
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PA_SOURCE_VARIABLES - this routine sets the various PANACEA variables
* - which have been tied to data from source files
*/
void PA_source_variables(t, dt)
double t, dt;
{int i;
PA_src_variable *svp;
PA_variable *pp;
/* check all source specifications which are
* tied to variables in the data base
*
* NOTE: N_Variables is greater than the number actually referenced
* this gives more efficiency but one has to be careful when
* checking SV_List for NULL entries
*/
for (i = 0; i < N_Variables; i++)
{svp = SV_List[i];
if (svp == NULL)
continue;
pp = PA_inquire_variable(svp->name);
/* if the variable is missing or unconnected skip it */
if ((pp == NULL) || (PA_VARIABLE_DATA(pp) == NULL))
continue;
PA_interp_src(PA_VARIABLE_DATA(pp),
svp, 0, PA_VARIABLE_SIZE(pp), t, dt);};
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PA_INTERP_SRC - interpolate a variable from PA_src_variable data
* - into variable v from v[ni] thru v[nf-1]
* - for now this is a quadratic interpolation only scheme
*/
void PA_interp_src(v, svp, ni, nf, t, dt)
byte *v;
PA_src_variable *svp;
int ni, nf;
double t, dt;
{char *type;
double *times;
double t0, t1, t2, t3;
/* make sure that the queue is up to date with this time */
_PA_step_queue(svp, t);
times = svp->queue_times;
t0 = times[0];
t1 = times[1];
t2 = times[2];
t3 = times[3];
type = svp->pp->desc->type;
if (strcmp(type, SC_DOUBLE_S) == 0)
{PA_INTERP_TYPE(v, double, svp, t, t0, t1, t2, t3);}
/*
{int i;
double *pv;
double *d0, *d1, *d2, *d3, **pd;
double s1, s2;
double dt10, dt21, dt32, xd1, xd2;
double xm1, xm2, xm3;
double xf0, xf1, xf2, xf3;
pv = (double *) v;
pd = (double **) svp->queue;
d0 = pd[0];
d1 = pd[1];
d2 = pd[2];
d3 = pd[3];
if (svp->interpolate)
{dt10 = t1 - t0;
dt21 = t2 - t1;
dt32 = t3 - t2;
s1 = (t - t1)/dt21;
s2 = 1.0 - s1;
for (i = ni; i < nf; i++)
{xd1 = 0.0;
xd2 = 0.0;
xf0 = (double) d0[i];
xf1 = (double) d1[i];
xf2 = (double) d2[i];
xf3 = (double) d3[i];
xm1 = (xf1 - xf0)/dt10;
xm2 = (xf2 - xf1)/dt21;
xm3 = (xf3 - xf2)/dt32;
if (xm1*xm2 > 0.0)
{xd1 = (dt21*xm1 + dt10*xm2)/(dt10 + dt21);
if (xd1/xm1 > 3.0)
xd1 = 3.0*xm1;
if (xd1/xm2 > 3.0)
xd1 = 3.0*xm2;};
if (xm2*xm3 > 0.0)
{xd2 = (dt32*xm2 + dt21*xm3)/(dt21 + dt32);
if (xd2/xm2 > 3.0)
xd2 = 3.0*xm2;
if (xd2/xm3 > 3.0)
xd2 = 3.0*xm3;};
pv[i] = (double) ((xf1 + (2.0*xf1 + dt21*xd1)*s1)*s2*s2 +
(xf2 + (2.0*xf2 - dt21*xd2)*s2)*s1*s1);};}
else if ((t <= t2) && (t2 < t+dt))
{for (i = ni; i < nf; i++)
pv[i] = (double) d2[i];};}
*/
else if (strcmp(type, SC_FLOAT_S) == 0)
{PA_INTERP_TYPE(v, float, svp, t, t0, t1, t2, t3);}
else if (strcmp(type, SC_LONG_S) == 0)
{PA_INTERP_TYPE(v, long, svp, t, t0, t1, t2, t3);}
else if (strcmp(type, SC_INTEGER_S) == 0)
{PA_INTERP_TYPE(v, int, svp, t, t0, t1, t2, t3);}
else if (strcmp(type, SC_SHORT_S) == 0)
{PA_INTERP_TYPE(v, short, svp, t, t0, t1, t2, t3);};
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PA_INTR_SPEC - find the interpolated source value from the appropriate
* - PA_iv_specification
* - sp is a pointer to the initial value specification
* - t is the problem time
* - val is a value to return when the problem time is outside
* - of the iv_spec data
* - off is the offset past the descriptive information in the
* - data array
*/
double PA_intr_spec(sp, t, val, off)
PA_iv_specification *sp;
double t, val;
long off;
{double tin, st1, st2, sv1, sv2, *svp;
int sptmax, spt, spx;
/* find the appropriate range in the specification */
spt = sp->index;
spx = sp->num - off;
if ((0 <= spt) && (spt < spx))
{svp = sp->data + spt + off;
if (t >= *svp)
{for (sptmax = sp->num - 1; spt < sptmax; spt += 2, svp += 2)
{st1 = svp[0];
st2 = svp[2];
if ((st1 <= t) && (t < st2))
break;};};
if (spt >= sptmax)
tin = 0.0;
/* interpolate the source value */
else
{sv1 = svp[1];
sv2 = svp[3];
st1 = svp[0];
st2 = svp[2];
tin = ((t - st1)*sv2 + (st2 - t)*sv1) / (st2 - st1);};}
else
tin = val;
sp->index = spt;
return(tin);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
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