static void Problem2(void)
{
void *fct;
void *cpode_mem;
N_Vector y, yp;
realtype reltol=RTOL, abstol=ATOL, t, tout, erm, hu;
int flag, iout, qu;
y = NULL;
yp = NULL;
cpode_mem = NULL;
y = N_VNew_Serial(P2_NEQ);
N_VConst(ZERO, y);
NV_Ith_S(y,0) = ONE;
yp = N_VNew_Serial(P2_NEQ);
if (ODE == CP_EXPL) {
fct = (void *)f2;
} else {
fct = (void *)res2;
f2(P2_T0, y, yp, NULL);
}
cpode_mem = CPodeCreate(ODE, CP_ADAMS, CP_FUNCTIONAL);
/* flag = CPodeSetInitStep(cpode_mem, 2.0e-9);*/
flag = CPodeInit(cpode_mem, fct, NULL, P2_T0, y, yp, CP_SS, reltol, &abstol);
printf("\n t max.err qu hu \n");
for(iout=1, tout=P2_T1; iout <= P2_NOUT; iout++, tout*=P2_TOUT_MULT) {
flag = CPode(cpode_mem, tout, &t, y, yp, CP_NORMAL);
if (flag != CP_SUCCESS) break;
erm = MaxError(y, t);
flag = CPodeGetLastOrder(cpode_mem, &qu);
flag = CPodeGetLastStep(cpode_mem, &hu);
printf("%10.3f %12.4le %2d %12.4le\n", t, erm, qu, hu);
}
PrintFinalStats(cpode_mem);
CPodeFree(&cpode_mem);
N_VDestroy_Serial(y);
N_VDestroy_Serial(yp);
return;
}
static int Problem2(void)
{
realtype reltol=RTOL, abstol=ATOL, t, tout, er, erm, ero;
int miter, flag, temp_flag, nerr=0;
N_Vector y;
void *cvode_mem;
booleantype firstrun;
int qu, iout;
realtype hu;
y = NULL;
cvode_mem = NULL;
y = N_VNew_Serial(P2_NEQ);
if(check_flag((void *)y, "N_VNew", 0)) return(1);
PrintIntro2();
cvode_mem = CVodeCreate(CV_ADAMS, CV_FUNCTIONAL);
if(check_flag((void *)cvode_mem, "CVodeCreate", 0)) return(1);
for (miter=FUNC; miter <= BAND_DQ; miter++) {
if ((miter==DENSE_USER) || (miter==DENSE_DQ)) continue;
ero = ZERO;
N_VConst(ZERO, y);
NV_Ith_S(y,0) = ONE;
firstrun = (miter==FUNC);
if (firstrun) {
flag = CVodeMalloc(cvode_mem, f2, P2_T0, y, CV_SS, reltol, &abstol);
if(check_flag(&flag, "CVodeMalloc", 1)) return(1);
} else {
flag = CVodeSetIterType(cvode_mem, CV_NEWTON);
if(check_flag(&flag, "CVodeSetIterType", 1)) ++nerr;
flag = CVodeReInit(cvode_mem, f2, P2_T0, y, CV_SS, reltol, &abstol);
if(check_flag(&flag, "CVodeReInit", 1)) return(1);
}
flag = PrepareNextRun(cvode_mem, CV_ADAMS, miter, P2_MU, P2_ML);
if(check_flag(&flag, "PrepareNextRun", 1)) return(1);
PrintHeader2();
for(iout=1, tout=P2_T1; iout <= P2_NOUT; iout++, tout*=P2_TOUT_MULT) {
flag = CVode(cvode_mem, tout, y, &t, CV_NORMAL);
check_flag(&flag, "CVode", 1);
erm = MaxError(y, t);
temp_flag = CVodeGetLastOrder(cvode_mem, &qu);
if(check_flag(&temp_flag, "CVodeGetLastOrder", 1)) ++nerr;
temp_flag = CVodeGetLastStep(cvode_mem, &hu);
if(check_flag(&temp_flag, "CVodeGetLastStep", 1)) ++nerr;
PrintOutput2(t, erm, qu, hu);
if (flag != CV_SUCCESS) {
nerr++;
break;
}
er = erm / abstol;
if (er > ero) ero = er;
if (er > P2_TOL_FACTOR) {
nerr++;
PrintErrOutput(P2_TOL_FACTOR);
}
}
PrintFinalStats(cvode_mem, miter, ero);
}
CVodeFree(cvode_mem);
cvode_mem = CVodeCreate(CV_BDF, CV_FUNCTIONAL);
if(check_flag((void *)cvode_mem, "CVodeCreate", 0)) return(1);
for (miter=FUNC; miter <= BAND_DQ; miter++) {
if ((miter==DENSE_USER) || (miter==DENSE_DQ)) continue;
ero = ZERO;
N_VConst(ZERO, y);
NV_Ith_S(y,0) = ONE;
firstrun = (miter==FUNC);
if (firstrun) {
flag = CVodeMalloc(cvode_mem, f2, P2_T0, y, CV_SS, reltol, &abstol);
if(check_flag(&flag, "CVodeMalloc", 1)) return(1);
} else {
flag = CVodeSetIterType(cvode_mem, CV_NEWTON);
if(check_flag(&flag, "CVodeSetIterType", 1)) ++nerr;
flag = CVodeReInit(cvode_mem, f2, P2_T0, y, CV_SS, reltol, &abstol);
if(check_flag(&flag, "CVodeReInit", 1)) return(1);
}
flag = PrepareNextRun(cvode_mem, CV_BDF, miter, P2_MU, P2_ML);
if(check_flag(&flag, "PrepareNextRun", 1)) return(1);
PrintHeader2();
for(iout=1, tout=P2_T1; iout <= P2_NOUT; iout++, tout*=P2_TOUT_MULT) {
flag = CVode(cvode_mem, tout, y, &t, CV_NORMAL);
check_flag(&flag, "CVode", 1);
erm = MaxError(y, t);
temp_flag = CVodeGetLastOrder(cvode_mem, &qu);
if(check_flag(&temp_flag, "CVodeGetLastOrder", 1)) ++nerr;
temp_flag = CVodeGetLastStep(cvode_mem, &hu);
if(check_flag(&temp_flag, "CVodeGetLastStep", 1)) ++nerr;
PrintOutput2(t, erm, qu, hu);
if (flag != CV_SUCCESS) {
nerr++;
break;
}
er = erm / abstol;
if (er > ero) ero = er;
if (er > P2_TOL_FACTOR) {
nerr++;
PrintErrOutput(P2_TOL_FACTOR);
}
}
PrintFinalStats(cvode_mem, miter, ero);
}
CVodeFree(cvode_mem);
N_VDestroy_Serial(y);
return(nerr);
}
