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smoothfcn.c
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smoothfcn.c
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#include <math.h>
#include <assert.h>
#include "smoothfcn.h"
#include <stdlib.h>
#define max(A,B) ((A) > (B) ? (A) : (B))
#define min(A,B) ((A) > (B) ? (B) : (A))
#define SECONDSPERYEAR 31557600.
#ifdef COLLISIONS
#include "ssdefs.h"
#include "collision.h"
#endif
#ifdef AGGS
#include "aggs.h"
#endif
/* Benz Method (Default) */
#if !defined(PRES_MONAGHAN) && !defined(PRES_HK)
#define PRES_PDV(a,b) (a)
#define PRES_ACC(a,b) (a+b)
#endif
/* Monaghan Method */
/* HK */
/*
Change the way the Balsara Switch is applied:
*/
/*
#define SWITCHCOMBINE(a,b) (0.5*(a->BalsaraSwitch+b->BalsaraSwitch))
#define SWITCHCOMBINE(a,b) (a->BalsaraSwitch > b->BalsaraSwitch ? a->BalsaraSwitch : b->BalsaraSwitch)
#define SWITCHCOMBINE(a,b) (a->BalsaraSwitch*b->BalsaraSwitch)
#define SWITCHCOMBINE(a,b) ((a->BalsaraSwitch*b->BalsaraSwitch > 0.5 || \
(a->BalsaraSwitch > 0.5 && (dx*a->aPres[0]+dy*a->aPres[1]+dz*a->aPres[2]) > 0) || \
(b->BalsaraSwitch > 0.5 && (dx*b->aPres[0]+dy*b->aPres[1]+dz*b->aPres[2]) < 0)) ? 1 : 0)
#define SWITCHCOMBINEA(a,b) (a->BalsaraSwitch >= 1 || b->BalsaraSwitch >= 1 ? 1 : 0)
#define SWITCHCOMBINEA(a,b) ((a->BalsaraSwitch*b->BalsaraSwitch)*(a->ShockTracker > b->ShockTracker ? a->ShockTracker : b->ShockTracker))
*/
#define ACCEL(p,j) (((PARTICLE *)(p))->a[j])
#define KPCCM 3.085678e21
#define SWITCHCOMBINE(a,b) (0.5*(a->BalsaraSwitch+b->BalsaraSwitch))
/* New idea -- upwind combine
#define SWITCHCOMBINE(a,b) ((a->fDensity < b->fDensity) ? a->BalsaraSwitch : b->BalsaraSwitch)
*/
#define SWITCHCOMBINEA(a,b) SWITCHCOMBINE(a,b)
#define SWITCHCOMBINEB(a,b) SWITCHCOMBINE(a,b)
#define ACCEL_PRES(p,j) (((PARTICLE *)(p))->a[j])
#define ACCEL_COMB_PRES(p,j)
#ifdef CULLENDEHNEN
#undef SWITCHCOMBINE
#define SWITCHCOMBINE(a,b) (1.0)
#define SWITCHCOMBINEA(a,b) SWITCHCOMBINE(a,b)
#define SWITCHCOMBINEB(a,b) SWITCHCOMBINE(a,b)
#endif
/* KERNEL is the kernel normalized so that only a division by pi is necessary
DKERNEL is the kernel derivative divided by (r/h) and normalized so that only a division by pi is necessary */
#define BALL2(a) ((a)->fBall2)
#ifdef QUINTIC
/* Quintic spline. Safe Nsmooths: 108-180 Stable against pairing to NS ~ 190 (Dehnen & Aly 2012) */
#define KERNEL(ak,ar2) { \
double ak1 = sqrt(ar2*0.25),ak2; \
ak2 = (1-ak1); ak=(ak2*ak2)*(ak2*ak2)*ak2; \
if (ak1 < (2./3.)) { \
ak2 = ((2./3.)-ak1); ak -= 6*(ak2*ak2)*(ak2*ak2)*ak2; \
if (ak1 < (1./3.)) { \
ak2 = ((1./3.)-ak1); ak += 15*(ak2*ak2)*(ak2*ak2)*ak2; \
} \
} \
ak *= (2187./40./8.); \
}
#define DKERNEL(adk,ar2) { \
double ak1 = sqrt(ar2*0.25),ak2; \
ak2 = (1-ak1); adk=(ak2*ak2)*(ak2*ak2); \
if (ak1 < (2./3.)) { \
ak2 = ((2./3.)-ak1); adk -= 6*(ak2*ak2)*(ak2*ak2); \
if (ak1 < (1./3.)) { \
if (ak1 <= 0) { \
adk = 0; ak1 = 1; \
} \
else { \
ak2 = ((1./3.)-ak1); adk += 15*(ak2*ak2)*(ak2*ak2); \
} \
} \
} \
adk *= (-5*2187./40./8./4.)/ak1; \
}
#else
#ifdef WENDLAND
/* Wendland C_2 Kernel */
#define KERNEL(ak,ar2) { \
if (ar2 <= 0) ak = smf->Wzero; /* Dehnen & Aly 2012 correction (1-0.0454684 at Ns=64) */ \
else { \
double au = sqrt(ar2*0.25); \
ak = 1-au; \
ak = ak*ak; \
ak = ak*ak; \
ak = (21/16.)*ak*(1+4*au); \
} \
}
#define DKERNEL(adk,ar2) { \
double au = sqrt(ar2*0.25); \
adk = 1-au; \
adk = (-21/16.*20./4.)*adk*adk*adk; \
}
#else
#ifdef WENDLANDC4
/* Wendland C_4 Kernel */
#define KERNEL(ak,ar2) { \
if (ar2 <= 0) ak = smf->Wzero; /* Dehnen & Aly 2012 correction */ \
else { \
double au = sqrt(ar2*0.25); \
ak = 1-au; \
ak = ak*ak*ak; \
ak = ak*ak; \
ak = (495/32./8.)*ak*(1+6*au+(35/3.)*au*au); \
} \
}
#define DKERNEL(adk,ar2) { \
double _a2,au = sqrt(ar2*0.25); \
adk = 1-au; \
_a2 = adk*adk; \
adk = (-495/32.*7./3./4.)*_a2*_a2*adk*(1+5*au); \
}
#else
#ifdef PEAKEDKERNEL
/* Standard M_4 Kernel with central peak for dW/du according to Thomas and Couchman 92 (Steinmetz 96) */
#define KERNEL(ak,ar2) { \
ak = 2.0 - sqrt(ar2); \
if (ar2 < 1.0) ak = (1.0 - 0.75*ak*ar2); \
else ak = 0.25*ak*ak*ak; \
}
#define DKERNEL(adk,ar2) { \
adk = sqrt(ar2); \
if (ar2 < 1.0) { \
if (adk < (2./3.)) { \
if (adk > 0) adk = -1/adk; \
} \
else { \
adk = -3 + 2.25*adk; \
} \
} \
else { \
adk = -0.75*(2.0-adk)*(2.0-adk)/adk; \
} \
}
#else
#ifdef M43D
/* M43D Creates a 3D kernel by convolution of 3D tophats the way M4(1D) is made in 1D */
#define KERNEL(ak,ar2) { \
ak = sqrt(ar2); \
if (ar2 < 1.0) ak = 6.*0.25/350./3. *(1360+ar2*(-2880 \
+ar2*(3528+ak*(-1890+ak*(-240+ak*(270-6*ar2)))))); \
else ak = 6.*0.25/350./3. *(7040-1152/ak+ak*(-10080+ak*(2880+ak*(4200 \
+ak*(-3528+ak*(630+ak*(240+ak*(-90+2*ar2)))))))); \
}
#define DKERNEL(adk,ar2) { \
adk = sqrt(ar2); \
if (ar2 < 1.0) adk = 6.*0.25/350./3. * (-2880*2 \
+ar2*(3528*4+ adk*(-1890*5 + adk*(-240*6+ adk*(270*7-6*9*ar2))))); \
else adk = 6.*0.25/350./3. *((1152/ar2-10080)/adk+(2880*2+adk*(4200*3 \
+adk*(-3528*4+adk*(630*5+adk*(240*6 +adk*(-90*7+2*9*ar2))))))); \
}
#else
#ifdef HSHRINK
/* HSHRINK M4 Kernel uses an effective h of (pi/6)^(1/3) times h for nSmooth neighbours */
#define dSHRINKFACTOR 0.805995977
#undef BALL2
#define BALL2(a) ((a)->fBall2*(dSHRINKFACTOR*dSHRINKFACTOR))
#define KERNEL(ak,ar2) { \
ak = 2.0 - sqrt(ar2); \
if (ar2 < 1.0) ak = (1.0 - 0.75*ak*ar2); \
else if (ar2 < 4.0) ak = 0.25*ak*ak*ak; \
else ak = 0.0; \
}
#define DKERNEL(adk,ar2) { \
adk = sqrt(ar2); \
if (ar2 < 1.0) { \
adk = -3 + 2.25*adk; \
} \
else if (ar2 < 4.0) { \
adk = -0.75*(2.0-adk)*(2.0-adk)/adk; \
} \
else adk = 0.0; \
}
#else
#ifdef M4
/* Standard M_4 Kernel */
#define KERNEL(ak,ar2) { \
ak = 2.0 - sqrt(ar2); \
if (ar2 < 1.0) ak = (1.0 - 0.75*ak*ar2); \
else ak = 0.25*ak*ak*ak; \
}
#define DKERNEL(adk,ar2) { \
adk = sqrt(ar2); \
if (ar2 < 1.0) { \
adk = -3 + 2.25*adk; \
} \
else { \
adk = -0.75*(2.0-adk)*(2.0-adk)/adk; \
} \
}
#else
fprintf(stderr, "ERROR: No Kernel Specified!");
assert(0);
#endif
#endif
#endif
#endif
#endif /* WENDLANDC4 */
#endif /* WENDLAND */
#endif /* QUINTIC */
void NullSmooth(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf) {
}
void initDensity(void *p)
{
((PARTICLE *)p)->fDensity = 0.0;
}
void combDensity(void *p1,void *p2)
{
((PARTICLE *)p1)->fDensity += ((PARTICLE *)p2)->fDensity;
}
void Density(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
FLOAT ih2,r2,rs,fDensity,fNorm;
int i;
ih2 = 4.0/BALL2(p);
fDensity = 0.0;
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2*ih2;
#ifdef FBPARTICLE
assert(TYPETest(nnList[i].pPart,TYPE_GAS));
#endif
KERNEL(rs,r2);
fDensity += rs*nnList[i].pPart->fMass;
}
fNorm = M_1_PI*sqrt(ih2)*ih2;
p->fDensity = fNorm*fDensity;
}
void DensitySym(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
PARTICLE *q;
FLOAT fNorm,ih2,r2,rs;
int i;
ih2 = 4.0/(BALL2(p));
fNorm = 0.5*M_1_PI*sqrt(ih2)*ih2;
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2*ih2;
KERNEL(rs,r2);
rs *= fNorm;
q = nnList[i].pPart;
p->fDensity += rs*q->fMass;
q->fDensity += rs*p->fMass;
}
}
void initDensityTmp(void *p)
{
#ifdef GASOLINE
((PARTICLE *)p)->curlv[0] = 0.0;
#else
((PARTICLE *)p)->fDensity = 0.0;
#endif
}
void combDensityTmp(void *p1,void *p2)
{
#ifdef GASOLINE
((PARTICLE *)p1)->curlv[0] += ((PARTICLE *)p2)->curlv[0];
#else
((PARTICLE *)p1)->fDensity += ((PARTICLE *)p2)->fDensity;
#endif
}
void DensityTmp(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
FLOAT ih2,r2,rs,fDensity,fNorm;
int i;
ih2 = 4.0/BALL2(p);
fDensity = 0.0;
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2*ih2;
KERNEL(rs,r2);
fDensity += rs*nnList[i].pPart->fMass;
}
fNorm = M_1_PI*sqrt(ih2)*ih2;
#ifdef GASOLINE
p->curlv[0] = fNorm*fDensity;
#else
p->fDensity = fNorm*fDensity;
#endif
}
void DensityTmpSym(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
PARTICLE *q;
FLOAT fNorm,ih2,r2,rs;
int i;
ih2 = 4.0/(BALL2(p));
fNorm = 0.5*M_1_PI*sqrt(ih2)*ih2;
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2*ih2;
KERNEL(rs,r2);
rs *= fNorm;
q = nnList[i].pPart;
#ifdef GASOLINE
p->curlv[0] += rs*q->fMass;
q->curlv[0] += rs*p->fMass;
#else
p->fDensity += rs*q->fMass;
q->fDensity += rs*p->fMass;
#endif
}
}
/* Mark functions:
These functions calculate density and mark the particles in some way
at the same time.
Only SmoothActive particles do this gather operation (as always).
MarkDensity:
Combination: if porig DensZeroed combine porig+pcopy into porig
if pcopy DensZeroed set porig = pcopy
Smooth:
Active particles get density, nbrofactive
All gather neighbours are labelled as DensZeroed, get density
--> effectively all particles and gather neighbours get density and are labelled DensZeroed
--> These densities will potentially be lacking scatter neighbours so only correct
if all particles involved in this operation OR scatter later added
Gather/Scatter Neighbours of Active Particles get nbrofactive
MarkSmooth:
Go through full tree looking for particles than touch a smooth active particle
and mark them with specified label: eg. TYPE_Scatter
MarkIIDensity:
Init: Densactive particles not dens zeroed get dens zeroed
Combination: If pcopy is active make porig active
Densactive particles only:
if porig DensZeroed combine density porig+pcopy into porig
if pcopy DensZeroed set density porig = pcopy
Smooth:
Densactive: get density
Densactive gather neighbours get density, DensZeroed (Nbrofactive if reqd)
Not Densactive, but Active:
get nbrofactive
Densactive gather neighbours get density, DensZeroed (Nbrofactive)
Not Densactive, Not Active
get nbrofactive if gather neighbour active
Densactive gather neighbours get density, DensZeroed
*/
void initParticleMarkDensity(void *p)
{
((PARTICLE *)p)->fDensity = 0.0;
TYPESet((PARTICLE *) p,TYPE_DensZeroed);
}
void initMarkDensity(void *p)
{
((PARTICLE *)p)->fDensity = 0.0;
}
void combMarkDensity(void *p1,void *p2)
{
if (TYPETest((PARTICLE *) p1,TYPE_DensZeroed)) {
((PARTICLE *)p1)->fDensity += ((PARTICLE *)p2)->fDensity;
}
else if (TYPETest((PARTICLE *) p2,TYPE_DensZeroed)) {
((PARTICLE *)p1)->fDensity = ((PARTICLE *)p2)->fDensity;
}
((PARTICLE *)p1)->iActive |= (((PARTICLE *)p2)->iActive & TYPE_MASK);
}
void MarkDensity(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
assert(0);
}
void MarkDensitySym(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
PARTICLE *q;
FLOAT fNorm,ih2,r2,rs;
int i;
unsigned int qiActive;
assert(TYPETest(p,TYPE_GAS));
ih2 = 4.0/(BALL2(p));
fNorm = 0.5*M_1_PI*sqrt(ih2)*ih2;
if (TYPETest(p,TYPE_ACTIVE)) {
TYPESet(p,TYPE_NbrOfACTIVE);
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2*ih2;
KERNEL(rs,r2);
rs *= fNorm;
q = nnList[i].pPart;
assert(TYPETest(q,TYPE_GAS));
p->fDensity += rs*q->fMass;
if (TYPETest(q,TYPE_DensZeroed)) {
q->fDensity += rs*p->fMass;
}
else {
q->fDensity = rs*p->fMass;
TYPESet(q, TYPE_DensZeroed);
}
TYPESet(q,TYPE_NbrOfACTIVE);
}
}
else {
qiActive = 0;
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2*ih2;
KERNEL(rs,r2);
rs *= fNorm;
q = nnList[i].pPart;
assert(TYPETest(q,TYPE_GAS));
if (TYPETest(p,TYPE_DensZeroed)) {
p->fDensity += rs*q->fMass;
}
else {
p->fDensity = rs*q->fMass;
TYPESet(p,TYPE_DensZeroed);
}
if (TYPETest(q,TYPE_DensZeroed)) {
q->fDensity += rs*p->fMass;
}
else {
q->fDensity = rs*p->fMass;
TYPESet(q, TYPE_DensZeroed);
}
qiActive |= q->iActive;
}
if (qiActive & TYPE_ACTIVE) TYPESet(p,TYPE_NbrOfACTIVE);
}
}
void initParticleMarkIIDensity(void *p)
{
if (TYPEFilter((PARTICLE *) p,TYPE_DensACTIVE|TYPE_DensZeroed,
TYPE_DensACTIVE)) {
((PARTICLE *)p)->fDensity = 0.0;
TYPESet((PARTICLE *)p,TYPE_DensZeroed);
/* if (((PARTICLE *)p)->iOrder == CHECKSOFT) fprintf(stderr,"Init Zero Particle 3031A: %g \n",((PARTICLE *) p)->fDensity);*/
}
}
/* copies of remote particles */
void initMarkIIDensity(void *p)
{
((PARTICLE *) p)->fDensity = 0.0;
/* if (((PARTICLE *)p)->iOrder == CHECKSOFT) fprintf(stderr,"Init Cache Zero Particle 3031A: %g \n",((PARTICLE *) p)->fDensity);*/
}
void combMarkIIDensity(void *p1,void *p2)
{
if (TYPETest((PARTICLE *) p1,TYPE_DensACTIVE)) {
if (TYPETest((PARTICLE *) p1,TYPE_DensZeroed)) {
((PARTICLE *)p1)->fDensity += ((PARTICLE *)p2)->fDensity;
}
else if (TYPETest((PARTICLE *) p2,TYPE_DensZeroed)) {
((PARTICLE *)p1)->fDensity = ((PARTICLE *)p2)->fDensity;
TYPESet((PARTICLE *)p1,TYPE_DensZeroed);
}
}
((PARTICLE *)p1)->iActive |= (((PARTICLE *)p2)->iActive & TYPE_MASK);
}
void MarkIIDensity(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
assert(0);
}
void MarkIIDensitySym(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
PARTICLE *q;
FLOAT fNorm,ih2,r2,rs;
int i;
unsigned int qiActive;
ih2 = 4.0/(BALL2(p));
fNorm = 0.5*M_1_PI*sqrt(ih2)*ih2;
if (TYPETest(p,TYPE_DensACTIVE)) {
qiActive = 0;
for (i=0;i<nSmooth;++i) {
q = nnList[i].pPart;
qiActive |= q->iActive;
r2 = nnList[i].fDist2*ih2;
KERNEL(rs,r2);
rs *= fNorm;
p->fDensity += rs*q->fMass;
/* if (p->iOrder == CHECKSOFT) fprintf(stderr,"DensActive Particle %iA: %g %i %g\n",p->iOrder,p->fDensity,q->iOrder,q->fMass);*/
if (TYPETest(q,TYPE_DensACTIVE)) {
if (TYPETest(q,TYPE_DensZeroed)) {
q->fDensity += rs*p->fMass;
/* if (q->iOrder == CHECKSOFT) fprintf(stderr,"qDensActive Particle %iA: %g %i \n",q->iOrder,q->fDensity,p->iOrder);*/
}
else {
q->fDensity = rs*p->fMass;
TYPESet(q,TYPE_DensZeroed);
/* if (q->iOrder == CHECKSOFT) fprintf(stderr,"zero qDensActive Particle %iA: %g %i \n",q->iOrder,q->fDensity,p->iOrder);*/
}
}
if (TYPETest(p,TYPE_ACTIVE)) TYPESet(q,TYPE_NbrOfACTIVE);
}
if (qiActive & TYPE_ACTIVE) TYPESet(p,TYPE_NbrOfACTIVE);
}
else if (TYPETest(p,TYPE_ACTIVE)) {
TYPESet( p,TYPE_NbrOfACTIVE);
for (i=0;i<nSmooth;++i) {
q = nnList[i].pPart;
TYPESet(q,TYPE_NbrOfACTIVE);
if (!TYPETest(q,TYPE_DensACTIVE)) continue;
r2 = nnList[i].fDist2*ih2;
KERNEL(rs,r2);
rs *= fNorm;
if (TYPETest(q,TYPE_DensZeroed)) {
q->fDensity += rs*p->fMass;
/* if (q->iOrder == CHECKSOFT) fprintf(stderr,"qActive Particle %iA: %g %i \n",q->iOrder,q->fDensity,p->iOrder);*/
}
else {
q->fDensity = rs*p->fMass;
TYPESet(q,TYPE_DensZeroed);
/* if (q->iOrder == CHECKSOFT) fprintf(stderr,"zero qActive Particle %iA: %g %i \n",q->iOrder,q->fDensity,p->iOrder);*/
}
}
}
else {
qiActive = 0;
for (i=0;i<nSmooth;++i) {
q = nnList[i].pPart;
qiActive |= q->iActive;
if (!TYPETest(q,TYPE_DensACTIVE)) continue;
r2 = nnList[i].fDist2*ih2;
KERNEL(rs,r2);
rs *= fNorm;
if (TYPETest(q,TYPE_DensZeroed)) {
q->fDensity += rs*p->fMass;
/* if (q->iOrder == CHECKSOFT) fprintf(stderr,"qOther Particle %iA: %g %i \n",q->iOrder,q->fDensity,p->iOrder);*/
}
else {
q->fDensity = rs*p->fMass;
TYPESet(q,TYPE_DensZeroed);
/* if (q->iOrder == CHECKSOFT) fprintf(stderr,"zero qOther Particle %iA: %g %i \n",q->iOrder,q->fDensity,p->iOrder);*/
}
}
if (qiActive & TYPE_ACTIVE) TYPESet(p,TYPE_NbrOfACTIVE);
}
}
void initMark(void *p)
{
}
void combMark(void *p1,void *p2)
{
((PARTICLE *)p1)->iActive |= (((PARTICLE *)p2)->iActive & TYPE_MASK);
}
void initDeltaAccel(void *p)
{
}
void combDeltaAccel(void *p1,void *p2)
{
if (TYPEQueryACTIVE((PARTICLE *) p1) && ((PARTICLE *)p2)->dt < ((PARTICLE *)p1)->dt)
((PARTICLE *)p1)->dt = ((PARTICLE *)p2)->dt;
}
void DeltaAccel(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
int i;
FLOAT dax,da2,r2,dt;
PARTICLE *q;
/* assert(TYPEQueryACTIVE((PARTICLE *) p)); */
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2;
if (r2 > 0) {
q = nnList[i].pPart;
dax = p->a[0]-q->a[0];
da2 = dax*dax;
dax = p->a[1]-q->a[1];
da2 += dax*dax;
dax = p->a[2]-q->a[2];
da2 += dax*dax;
if (da2 > 0) {
dt = smf->dDeltaAccelFac*sqrt(sqrt(r2/da2)); /* Timestep dt = Eta sqrt(deltar/deltaa) */
if (dt < p->dt) p->dt = dt;
if (
TYPEQueryACTIVE((PARTICLE *) q) &&
(dt < q->dt)) q->dt = dt;
}
}
}
}
#define fBindingEnergy(_a) (((PARTICLE *) (_a))->curlv[0])
#define iOrderSink(_a) (*((int *) (&((PARTICLE *) (_a))->curlv[1])))
/* Indicator for r,v,a update */
#define bRVAUpdate(_a) (((PARTICLE *) (_a))->curlv[2])
void initSinkAccreteTest(void *p)
{
#ifdef GASOLINE
fBindingEnergy(p) = FLT_MAX;
iOrderSink(p) = -1;
#endif
}
void combSinkAccreteTest(void *p1,void *p2)
{
#ifdef GASOLINE
/* Particle p1 belongs to sink iOrderSink(p1) initially but will
switch to iOrderSink(p2) if more bound to that sink */
if (fBindingEnergy(p2) < fBindingEnergy(p1)) {
fBindingEnergy(p1) = fBindingEnergy(p2);
iOrderSink(p1) = iOrderSink(p2);
}
if (TYPETest( ((PARTICLE *) p2), TYPE_NEWSINKING)) TYPESet( ((PARTICLE *) p1), TYPE_NEWSINKING);
#endif
}
#define TRUEMASS(p__) (p__)->fMass
void SinkAccreteTest(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
#ifdef GASOLINE
int i;
double dSinkRadius2 = smf->dSinkRadius*smf->dSinkRadius,
EBO,Eq,r2,dvx,dv2;
PARTICLE *q;
/* G = 1
p is sink particle
q is gas particle */
if (smf->dSinkBoundOrbitRadius > 0)
EBO = -0.5*TRUEMASS(p)/smf->dSinkBoundOrbitRadius;
else
EBO = FLT_MAX;
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2;
if (r2 > 0 && r2 <= dSinkRadius2) {
q = nnList[i].pPart;
if (TYPETest( q, TYPE_GAS ) && (q->iRung >= smf->iSinkCurrentRung || TYPETest(q, TYPE_NEWSINKING))) {
dvx = p->v[0]-q->v[0];
dv2 = dvx*dvx;
dvx = p->v[1]-q->v[1];
dv2 += dvx*dvx;
dvx = p->v[2]-q->v[2];
dv2 += dvx*dvx;
Eq = -TRUEMASS(p)/sqrt(r2) + 0.5*dv2;
if (smf->bSinkThermal) Eq+= q->u;
/* Being labelled NEWSINKING forces accretion to somebody even if unbound */
if (Eq < EBO || r2 < smf->dSinkMustAccreteRadius*smf->dSinkMustAccreteRadius || TYPETest(q, TYPE_NEWSINKING)) {
if (Eq < fBindingEnergy(q)) {
fBindingEnergy(q) = Eq;
iOrderSink(q) = p->iOrder; /* Particle q belongs to sink p */
TYPESet(q, TYPE_NEWSINKING);
}
}
}
}
}
#endif
}
void SinkingAverage(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
#ifdef GASOLINE
#endif
}
void SinkLogEntry( SINKLOG *pSinkLog, SINKEVENT *pSinkEvent, int iSinkEventType) {
if (pSinkEvent == NULL) return;
switch (iSinkEventType) {
case SINK_EVENT_NULL:
return;
case SINK_EVENT_ACCRETE_AT_FORMATION:
pSinkEvent->iOrdSink = -1; /* Truncated Event -- report Victim iOrder */
assert(pSinkEvent->iOrdVictim > 0);
pSinkLog->nAccrete++;
break;
case SINK_EVENT_FORM:
pSinkEvent->iOrdSink = pSinkLog->nForm; /* Actual Sink Formation Event -- Victims listed previously */
pSinkEvent->iOrdVictim = -1;
pSinkLog->nForm++;
break;
case SINK_EVENT_ACCRETE:
pSinkEvent->iOrdSink = -2; /* Truncated Event -- report Victim iOrder */
pSinkLog->nAccrete++;
break;
case SINK_EVENT_ACCRETE_UPDATE:
assert(pSinkEvent->iOrdSink > 0); /* Detailed Event -- report Victim iOrder and Sink Data */
pSinkLog->nAccrete++;
break;
case SINK_EVENT_MERGER: /* Detailed Event -- report deleted and full Sink Data */
break;
default:
assert(0);
}
if(pSinkLog->nLog >= pSinkLog->nMaxLog) {
/* Grow table */
pSinkLog->nMaxLog *= 1.4;
pSinkLog->SinkEventTab = realloc(pSinkLog->SinkEventTab,pSinkLog->nMaxLog*sizeof(SINKEVENT));
assert(pSinkLog->SinkEventTab != NULL);
}
pSinkLog->SinkEventTab[pSinkLog->nLog] = *pSinkEvent;
pSinkLog->nLog++;
}
void initSinkAccrete(void *p)
{ /* cached copies only */
}
void combSinkAccrete(void *p1,void *p2)
{
if (!(TYPETest( ((PARTICLE *) p1), TYPE_DELETED )) &&
TYPETest( ((PARTICLE *) p2), TYPE_DELETED ) ) {
((PARTICLE *) p1)-> fMass = ((PARTICLE *) p2)-> fMass;
TYPEReset(((PARTICLE *) p1),TYPE_SINKING);
pkdDeleteParticle( NULL, p1 );
}
}
/*#define DBGIORDER 2000000 */
#define DBGIORDER -1
void SinkAccrete(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
#ifdef GASOLINE
int i,j;
double ifMass;
PARTICLE *q;
int iSinkEventType = SINK_EVENT_NULL;
SINKEVENT SinkEvent;
SinkEvent.time= smf->dTime;
for (i=0;i<nSmooth;++i) {
q = nnList[i].pPart;
if ( iOrderSink(q) == p->iOrder) {
FLOAT mp,mq;
mp = p->fMass; mq = q->fMass;
ifMass = 1./(mp+mq);
for (j=0;j<3;j++) {
p->r[j] = ifMass*(mp*p->r[j]+mq*q->r[j]);
p->v[j] = ifMass*(mp*p->v[j]+mq*q->v[j]);
p->a[j] = ifMass*(mp*p->a[j]+mq*q->a[j]);
}
p->u += ifMass*(mp*p->u+mq*q->u);
p->fMass += mq;
assert(q->fMass != 0);
SinkLogEntry( &smf->pkd->sinkLog, &SinkEvent, iSinkEventType ); /* log past event */
iSinkEventType = SINK_EVENT_ACCRETE;
SinkEvent.iOrdSink = p->iOrder;
SinkEvent.iOrdVictim = q->iOrder;
q->fMass = 0;
pkdDeleteParticle(smf->pkd, q);
}
}
if (iSinkEventType != SINK_EVENT_NULL) {
iSinkEventType = SINK_EVENT_ACCRETE_UPDATE; /* Final particle includes full Sink update */
SinkEvent.mass = TRUEMASS(p);
SinkEvent.r[0] = p->r[0]; SinkEvent.r[1] = p->r[1]; SinkEvent.r[2] = p->r[2];
SinkEvent.v[0] = p->v[0]; SinkEvent.v[1] = p->v[1]; SinkEvent.v[2] = p->v[2];
SinkEvent.L[0] = SINK_Lx(p); SinkEvent.L[1] = SINK_Ly(p); SinkEvent.L[2] = SINK_Lz(p);
SinkLogEntry( &smf->pkd->sinkLog, &SinkEvent, iSinkEventType ); /* log most recent event */
}
#endif
}
void initSinkingForceShare(void *p)
{ /* cached copies only */
}
void combSinkingForceShare(void *p1,void *p2)
{
}
void SinkingForceShare(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
}
void initTreeParticleBHSinkDensity(void *p)
{
#ifdef GASOLINE
((PARTICLE *)p)->curlv[1] = 0.0; /* total mass change */
((PARTICLE *)p)->curlv[0] = ((PARTICLE *)p)->fMass; /* initial mass */
((PARTICLE *)p)->curlv[2] = 0.0; /* flag if accreted */
#endif
}
/* Cached Tree Active particles */
void initBHSinkDensity(void *p)
{
#ifdef GASOLINE
/*
* Original particle curlv's is trashed (JW)
*/
((PARTICLE *)p)->curlv[1] = 0.0; /* total mass change */
((PARTICLE *)p)->curlv[0] = ((PARTICLE *)p)->fMass; /* initial mass */
((PARTICLE *)p)->curlv[2] = 0.0; /* flag if accreted */
#endif
}
void combBHSinkDensity(void *p1,void *p2)
{
#ifdef GASOLINE
if (((PARTICLE *)p2)->curlv[2] > ((PARTICLE *)p1)->curlv[2]) { /* only important if particle has been selected JMB 6/24/09
* but necessary - if particle has 2 BH neighbors it can be
* overwritten */
((PARTICLE *)p1)->curlv[0] = ((PARTICLE *)p2)->curlv[0];
((PARTICLE *)p1)->curlv[1] = ((PARTICLE *)p2)->curlv[1]; /* total mass change */
((PARTICLE *)p1)->curlv[2] = ((PARTICLE *)p2)->curlv[2];
}
/* this way the most recent one wins JMB 5/12/09 */
/* don't sum up curlv[1], only let one BH eating be recorded.
curlv[1] will never be greater than curlv[0] this way */
#endif
}
/*
* Calculate paramters for BH accretion for use in the BHSinkAccrete
* function. This is done separately to even competition between
* neighboring Black Holes.
* Gas particles are ID'd here to be eaten in BHSinkAccrete.
*/
void BHSinkDensity(PARTICLE *p,int nSmooth,NN *nnList,SMF *smf)
{
#ifdef GASOLINE
PARTICLE *q = NULL;
FLOAT ih2,r2,rs,fDensity;
FLOAT v[3],cs,fW,dv2,dv;
double mdot, mdotEdd, mdotCurr, dmq, dtEff;
int i,naccreted, ieat;
FLOAT mdotsum, weat;
FLOAT weight,wrs;
double aFac, dCosmoDenFac,dCosmoVel2Fac,aDot;
FLOAT dvmin,dvx,dvy,dvz,dvcosmo; /* measure mindeltav */
assert(p->iRung >= smf->iSinkCurrentRung);
p->curlv[1] = 0.0;
naccreted = 0;
aFac = smf->a;
dCosmoDenFac = aFac*aFac*aFac;
dCosmoVel2Fac = (smf->bCannonical ? aFac*aFac : 1.0);
aDot = aFac*smf->H; /* da/dt */
/* CosmoVel2Fac converts cannonical velocity^2 to physical velocity^2
Cosmo sims tend to use cannonical velocities
v_phys = v_cannonical/a + adot*r
JMB 9/1/12*/
mdotsum = 0.;
weat = -1e37;
ih2 = 4.0/BALL2(p);
fDensity = 0.0; cs = 0;
v[0] = 0; v[1] = 0; v[2] = 0;
/* for mindv accretion method JMB 8/5/10 */
if(smf->bBHMindv == 1){
dvmin = FLOAT_MAXVAL;
for (i=0;i<nSmooth;++i) {
dvx = (-p->v[0] + nnList[i].pPart->v[0])/aFac - aDot*nnList[i].dx;
dvy = (-p->v[1] + nnList[i].pPart->v[1])/aFac - aDot*nnList[i].dy;
dvz = (-p->v[2] + nnList[i].pPart->v[2])/aFac - aDot*nnList[i].dz;
dvcosmo = sqrt(dvx*dvx + dvy*dvy + dvz*dvz);
if (dvcosmo < dvmin) {
dvmin=dvcosmo;
}
}
}
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2*ih2;
KERNEL(rs,r2);
q = nnList[i].pPart;
/*if(q->curlv[2] != 0) {*/
q->curlv[0] = q->fMass;
q->curlv[1] = 0;
q->curlv[2] = 0;
/*}*/
/* Sink should NOT be part of this list */
assert(TYPETest(q,TYPE_GAS));
fW = rs*q->fMass;
if(smf->bBHMindv == 1) weight = rs*pow(q->c*q->c+(dvmin*dvmin),-1.5)/dCosmoDenFac;
else {
dvx = (-p->v[0]+q->v[0])/aFac - aDot*nnList[i].dx;
dvy = (-p->v[1]+q->v[1])/aFac - aDot*nnList[i].dy;
dvz = (-p->v[2]+q->v[2])/aFac - aDot*nnList[i].dz;
dvcosmo = sqrt(dvx*dvx+dvy*dvy+dvz*dvz);
weight = rs*pow(q->c*q->c+dvcosmo*dvcosmo,-1.5)/dCosmoDenFac; /* weight particles by mdot quantities */
/* cosmo factors put in 7/7/09 JMB */
}
if (weight > weat) {
weat = weight;
ieat = i;
wrs = rs;
}
mdotsum += weight*q->fMass;
fDensity += fW;
v[0] += fW*q->v[0];
v[1] += fW*q->v[1];
v[2] += fW*q->v[2];
cs += fW*q->c;
}
dv2 = 0;
for (i=0;i<3;i++) {
dv = v[i]/fDensity-p->v[i];
dv2 += dv*dv;
}
dv2 /= dCosmoVel2Fac;
/*
* Store results in particle.
* XXX NB overloading "curlv" field of the BH particle. I am
* assuming it is not used.
*/
p->c = cs = cs/fDensity;
p->fDensity = fDensity = M_1_PI*sqrt(ih2)*ih2*fDensity;
fDensity /= dCosmoDenFac;
if(smf->bBHMindv == 1) printf("BHSink %d: Time: %g Selected Particle Density: %g SPH: %g C_s: %g dv: %g dist: %g\n",p->iOrder,smf->dTime,nnList[ieat].pPart->fDensity,wrs,nnList[ieat].pPart->c,dvmin,sqrt(nnList[ieat].fDist2));
else printf("BHSink %d: Time: %g Selected Particle Density: %g SPH: %g C_s: %g dv: %g dist: %g\n",p->iOrder,smf->dTime,nnList[ieat].pPart->fDensity,wrs,nnList[ieat].pPart->c,sqrt(dv2),sqrt(nnList[ieat].fDist2));
printf("BHSink %d: Time: %g Mean Particle Density: %g C_s: %g dv: %g\n",p->iOrder,smf->dTime,fDensity,cs,sqrt(dv2));
mdot = mdotsum*smf->dBHSinkAlphaFactor*p->fMass*p->fMass*M_1_PI*sqrt(ih2)*ih2; /* new mdot! */
/* Eddington Limit Rate */
mdotEdd = smf->dBHSinkEddFactor*p->fMass;
printf("BHSink %d: Time: %.8f mdot (BH): %g mdot (Edd): %g a: %g\n",p->iOrder,smf->dTime,mdot,mdotEdd, smf->a);
if (mdot > mdotEdd) mdot = mdotEdd;
mdotCurr = p->divv = mdot; /* store mdot in divv of sink */
weight = -1e37;
weat = -1e37;
for (;;) {
q = NULL;
for (i=0;i<nSmooth;++i) {
r2 = nnList[i].fDist2;
if(TYPETest(nnList[i].pPart,TYPE_DELETED)) continue;
/* don't accrete a deleted particle! JMB 10/1/08 */
KERNEL(rs,r2);
fW = rs*nnList[i].pPart->fMass;
if(smf->bBHAccreteAll != 1 && r2 > 0.25*nnList[i].pPart->fBall2) continue;
/* don't accrete gas that doesn't have the BH
* in its smoothing length JMB 10/22/08 */
/* make this an optional parameter JMB 9/21/12 */
/*if (nnList[i].pPart->iRung < smf->iSinkCurrentRung) continue; // JMB 7/9/09 */
if(smf->bBHMindv == 1) weight = rs*pow(nnList[i].pPart->c*nnList[i].pPart->c+(dvmin*dvmin),-1.5)/dCosmoDenFac;
else {
dvx = (-p->v[0]+nnList[i].pPart->v[0])/aFac - nnList[i].dx*aDot;
dvy = (-p->v[1]+nnList[i].pPart->v[1])/aFac - nnList[i].dy*aDot;