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xspec_test.cc
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/*
g++ -o nei nei.cc -Wall -L$HEADAS/lib -lXSFunctions -lXSUtil
-lXSModel -lXS -lwcs-4.20 -lCCfits_2.4 -lcfitsio_3.37 -lgfortran
try out several of the NEI models
*/
#include <iostream>
typedef void (*cpp_model_ptr)(const double* energy, int nFlux, const
double* params, int spectrumNumber, double* flux, double* fluxError,
const char* initStr);
typedef void (*f_model_ptr)(float* energy, int *nFlux, float* params,
int *spectrumNumber, float* flux, float* fluxError);
extern "C" {
void FNINIT();
char* FGSOLR();
char* FGXSCT();
void FPCHAT(int);
void csmpq0(float q0);
void csmph0(float H0);
void csmpl0(float lambda0);
int xs_getVersion(char *buffer, int buffSize);
void C_gnei(const double* energy, int nFlux, const double* params,
int spectrumNumber, double* flux, double* fluxError, const char*
initStr);
void C_nei(const double* energy, int nFlux, const double* params,
int spectrumNumber, double* flux, double* fluxError, const char*
initStr);
void C_rnei(const double* energy, int nFlux, const double* params,
int spectrumNumber, double* flux, double* fluxError, const char*
initStr);
void C_vgnei(const double* energy, int nFlux, const double* params,
int spectrumNumber, double* flux, double* fluxError, const char*
initStr);
void C_vnei(const double* energy, int nFlux, const double* params,
int spectrumNumber, double* flux, double* fluxError, const char*
initStr);
void C_vrnei(const double* energy, int nFlux, const double* params,
int spectrumNumber, double* flux, double* fluxError, const char*
initStr);
void C_vvgnei(const double* energy, int nFlux, const double* params,
int spectrumNumber, double* flux, double* fluxError, const char*
initStr);
void C_vvnei(const double* energy, int nFlux, const double* params,
int spectrumNumber, double* flux, double* fluxError, const char*
initStr);
void C_vvrnei(const double* energy, int nFlux, const double* params,
int spectrumNumber, double* flux, double* fluxError, const char*
initStr);
void xszvab_(float* ear, int* ne, float* param, int* ifl, float*
photar, float* photer);
}
/***
vvnei has 33 parameters (ignoring norm)
In [2]: mdl = xspec.XSvvnei()
In [3]: print(mdl)
vvnei
Param Type Value Min Max Units
----- ---- ----- --- --- -----
vvnei.kT thawed 1 0.0808 79.9 keV
vvnei.H frozen 1 0 1000
vvnei.He frozen 1 0 1000
vvnei.Li frozen 1 0 1000
vvnei.Be frozen 1 0 1000
vvnei.B frozen 1 0 1000
vvnei.C frozen 1 0 1000
vvnei.N frozen 1 0 1000
vvnei.O frozen 1 0 1000
vvnei.F frozen 1 0 1000
vvnei.Ne frozen 1 0 1000
vvnei.Na frozen 1 0 1000
vvnei.Mg frozen 1 0 1000
vvnei.Al frozen 1 0 1000
vvnei.Si frozen 1 0 1000
vvnei.P frozen 1 0 1000
vvnei.S frozen 1 0 1000
vvnei.Cl frozen 1 0 1000
vvnei.Ar frozen 1 0 1000
vvnei.K frozen 1 0 1000
vvnei.Ca frozen 1 0 1000
vvnei.Sc frozen 1 0 1000
vvnei.Ti frozen 1 0 1000
vvnei.V frozen 1 0 1000
vvnei.Cr frozen 1 0 1000
vvnei.Mn frozen 1 0 1000
vvnei.Fe frozen 1 0 1000
vvnei.Co frozen 1 0 1000
vvnei.Ni frozen 1 0 1000
vvnei.Cu frozen 1 0 1000
vvnei.Zn frozen 1 0 1000
vvnei.Tau thawed 1e+11 1e+08 5e+13 s/cm^3
vvnei.redshift frozen 0 -0.999 10
vvnei.norm thawed 1 0 1e+24
***/
// just to use the same grid as the python tests
const int nbins = 990;
void eval_model(cpp_model_ptr mfunc,
double *params) {
double energy[nbins];
double flux[nbins];
double fluxerr[nbins];
int i;
energy[0] = 0.1;
flux[0] = 0.0;
fluxerr[0] = 0.0;
for (i=1; i < nbins; i++) {
energy[i] = energy[i-1] + 0.01;
flux[i] = 0.0;
fluxerr[i] = 0.0;
}
(*mfunc)(energy, nbins, params, 1, flux, fluxerr, "");
}
int nbins_f = nbins;
void eval_model_f(f_model_ptr mfunc,
float *params) {
float energy[nbins_f];
float flux[nbins_f];
float fluxerr[nbins_f];
int i;
int sp = 1;
energy[0] = 0.1;
flux[0] = 0.0;
fluxerr[0] = 0.0;
for (i=1; i < nbins_f; i++) {
energy[i] = energy[i-1] + 0.01;
flux[i] = 0.0;
fluxerr[i] = 0.0;
}
(*mfunc)(energy, &nbins_f, params, &sp, flux, fluxerr);
}
const int gnei_npars = 5;
double gnei_params[gnei_npars] = { 1, 1, 1e11, 1, 0 };
const int nei_npars = 4;
double nei_params[nei_npars] = { 1, 1, 1e11, 0 };
const int rnei_npars = 5;
double rnei_params[rnei_npars] = { 0.5, 1, 1, 1e11, 0 };
const int vgnei_npars = 17;
double vgnei_params[vgnei_npars] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1e11, 1, 0 };
const int vnei_npars = 16;
double vnei_params[vnei_npars] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1e11, 0 };
const int vrnei_npars = 17;
double vrnei_params[vrnei_npars] = { 0.5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1e11, 0 };
const int vvgnei_npars = 34;
double vvgnei_params[vvgnei_npars] = { 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1e11, 1, 0 };
const int vvnei_npars = 33;
double vvnei_params[vvnei_npars] = { 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1e11, 0 };
const int vvrnei_npars = 34;
double vvrnei_params[vvrnei_npars] = { 0.5, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1e11, 0 };
const int zvarabs_npars = 19;
float zvarabs_params[zvarabs_npars] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 0 };
int main(int argc ,char **argv) {
char version[100];
FNINIT();
xs_getVersion(version, 99);
std::cout << "X-Spec: " << version << std::endl;
std::cout << "** abundances : " << FGSOLR() << std::endl;
std::cout << "** cross-section: " << FGXSCT() << std::endl;
FPCHAT(0);
csmph0( 70.0 );
csmpq0( 0.0 );
csmpl0( 0.73 );
// follow the order used in my python test scripts, in case the
// behaviour I see there is due to an ordering issue.
eval_model(C_gnei, gnei_params);
eval_model(C_nei, nei_params);
eval_model(C_rnei, rnei_params);
eval_model(C_vgnei, vgnei_params);
eval_model(C_vnei, vnei_params);
eval_model(C_vrnei, vrnei_params);
eval_model(C_vvgnei, vvgnei_params);
eval_model(C_vvnei, vvnei_params);
eval_model(C_vvrnei, vvrnei_params);
// have seen some problems with this
// eval_model_f(xszvab_, zvarabs_params);
return 0;
}