bool
dynamo::OverlapFunctions::CubePlane(const Vector& CubeOrigin,
const Vector& CubeDimensions,
const Vector& PlaneOrigin,
const Vector& PlaneNormal,
const double tol)
{
Vector relpos(CubeOrigin - PlaneOrigin);
size_t counter[3] = {0, 0, 0};
while (counter[NDIM-1] < 2)
{
Vector pointpos(relpos);
for (size_t iDim(0); iDim < NDIM; ++iDim)
pointpos[iDim] += counter[iDim] * CubeDimensions[iDim];
if ((pointpos | PlaneNormal) < tol) return true;
++counter[0];
for (size_t iDim(0); iDim < NDIM-1; ++iDim)
if (counter[iDim] > 1)
{
counter[iDim] = 0;
++counter[iDim+1];
}
}
return false;
}
void
OPVTK::initialise()
{
size_t vecSize = 1;
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
binWidth[iDim] *= Sim->dynamics.units().unitLength();
if (binWidth[iDim] > 0.5 * Sim->primaryCellSize[iDim])
M_throw() << "Your bin width is too large for the " << iDim
<< " dimension";
nBins[iDim] = static_cast<size_t>
(Sim->primaryCellSize[iDim] / binWidth[iDim]);
//This is just to ensure the bin width fits an integer number of
//times into the simulation
binWidth[iDim] = Sim->primaryCellSize[iDim] / nBins[iDim];
invBinWidth[iDim] = 1.0 / binWidth[iDim];
vecSize *= nBins[iDim];
}
binVol = binWidth[0] * binWidth[1] * binWidth[2];
if (CollisionStats)
{
collCounter.clear();
collCounter.resize(vecSize, 0);
}
if (fields)
{
mVsquared.resize(vecSize, 0.0);
SampleCounter.resize(vecSize, 0);
Momentum.resize(vecSize, Vector (0,0,0));
std::string tmp("< ");
for (size_t iDim(0); iDim < NDIM; ++iDim)
tmp += boost::lexical_cast<std::string>(nBins[iDim]) + " ";
dout << "Number of bins " << tmp << ">" << std::endl;
tmp = std::string("< ");
for (size_t iDim(0); iDim < NDIM; ++iDim)
tmp +=boost::lexical_cast<std::string>
(binWidth[iDim]/Sim->dynamics.units().unitLength()) + " ";
dout << "Bin width " << tmp << ">" << std::endl;
}
ticker();
}
GlobalEvent
GSOCells::getEvent(const Particle& part) const
{
#ifdef ISSS_DEBUG
if (!Sim->dynamics->isUpToDate(part))
M_throw() << "Particle is not up to date";
#endif
//This
//Sim->dynamics->updateParticle(part);
//is not required as we compensate for the delay using
//Sim->dynamics->getParticleDelay(part)
Vector CellOrigin;
size_t ID(part.getID());
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
CellOrigin[iDim] = (ID % cuberootN) * cellDimension[iDim] - 0.5*Sim->primaryCellSize[iDim];
ID /= cuberootN;
}
return GlobalEvent(part,
Sim->dynamics->
getSquareCellCollision2
(part, CellOrigin,
cellDimension)
-Sim->dynamics->getParticleDelay(part),
CELL, *this);
}
void
OPRijVij::process2PED(mapdata& ref, const PairEventData& PDat)
{
Vector rijnorm(PDat.rij / PDat.rij.nrm());
Vector vijnorm(PDat.vijold / PDat.vijold.nrm());
double rvdot(rijnorm | vijnorm);
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
ref.rij[iDim].addVal(rijnorm[iDim]);
ref.vij[iDim].addVal(vijnorm[iDim]);
size_t id1(static_cast<size_t>((rijnorm[iDim] + 1.0) * 1000));
size_t id2(static_cast<size_t>(-rvdot * 1000.0));
++ref.rijcostheta[iDim].at(id1).first;
ref.rijcostheta[iDim].at(id1).second += rvdot;
++ref.costhetarij[iDim].at(id2).first;
ref.costhetarij[iDim].at(id2).second += std::fabs(rijnorm[iDim]);
id1 = static_cast<size_t>((rijnorm[iDim] + 1.0) * 100);
id2 = static_cast<size_t>(-rvdot * 100.0);
++ref.anglemapcount;
++ref.anglemap[iDim][id1][id2];
}
}
void
DynGravity::enforceParabola(Particle& part) const
{
updateParticle(part);
Vector pos(part.getPosition()), vel(part.getVelocity());
Sim->BCs->applyBC(pos, vel);
//Find the dimension that is closest to
size_t dim = NDIM;
double time = HUGE_VAL;
for (size_t iDim(0); iDim < NDIM; ++iDim)
if (g[iDim] != 0)
{
double tmpTime = std::abs(- vel[iDim] / g[iDim]);
if ((std::abs(tmpTime) < time))
{
time = tmpTime;
dim = iDim;
}
}
#ifdef DYNAMO_DEBUG
if (dim >= NDIM) M_throw() << "Could not find a dimension to enforce the parabola in!";
#endif
part.getVelocity()[dim] = 0;
}
NEventData
DynGravity::enforceParabola(Particle& part) const
{
updateParticle(part);
const Species& species = *Sim->species(part);
NEventData retval(ParticleEventData(part, species, VIRTUAL));
Vector pos(part.getPosition()), vel(part.getVelocity());
Sim->BCs->applyBC(pos, vel);
//Find the dimension that is closest to
size_t dim = NDIM;
double time = std::numeric_limits<float>::infinity();
for (size_t iDim(0); iDim < NDIM; ++iDim)
if (g[iDim] != 0)
{
double tmpTime = std::abs(- vel[iDim] / g[iDim]);
if ((std::abs(tmpTime) < time))
{
time = tmpTime;
dim = iDim;
}
}
#ifdef DYNAMO_DEBUG
if (dim >= NDIM) M_throw() << "Could not find a dimension to enforce the parabola in!";
#endif
part.getVelocity()[dim] = 0;
return retval;
}
void
GSOCells::runEvent(Particle& part, const double) const
{
Sim->dynamics->updateParticle(part);
Vector CellOrigin;
size_t ID(part.getID());
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
CellOrigin[iDim] = (ID % cuberootN) * cellDimension[iDim] - 0.5*Sim->primaryCellSize[iDim];
ID /= cuberootN;
}
//Determine the cell transition direction, its saved
int cellDirectionInt(Sim->dynamics->
getSquareCellCollision3
(part, CellOrigin,
cellDimension));
size_t cellDirection = abs(cellDirectionInt) - 1;
GlobalEvent iEvent(getEvent(part));
#ifdef DYNAMO_DEBUG
if (std::isnan(iEvent.getdt()))
M_throw() << "A NAN Interaction collision time has been found"
<< iEvent.stringData(Sim);
if (iEvent.getdt() == HUGE_VAL)
M_throw() << "An infinite Interaction (not marked as NONE) collision time has been found\n"
<< iEvent.stringData(Sim);
#endif
Sim->systemTime += iEvent.getdt();
Sim->ptrScheduler->stream(iEvent.getdt());
Sim->stream(iEvent.getdt());
Vector vNorm(0,0,0);
Vector pos(part.getPosition()), vel(part.getVelocity());
Sim->BCs->applyBC(pos, vel);
vNorm[cellDirection] = (cellDirectionInt > 0) ? -1 : +1;
//Run the collision and catch the data
NEventData EDat(Sim->dynamics->runPlaneEvent(part, vNorm, 1.0, 0.0));
Sim->_sigParticleUpdate(EDat);
//Now we're past the event update the scheduler and plugins
Sim->ptrScheduler->fullUpdate(part);
for (shared_ptr<OutputPlugin> & Ptr : Sim->outputPlugins)
Ptr->eventUpdate(iEvent, EDat);
}
void
OPViscosityE::impulseDelG(const NEventData& ndat)
{
BOOST_FOREACH(const PairEventData& dat, ndat.L2partChanges)
for (size_t iDim(0); iDim < NDIM; ++iDim)
for (size_t jDim(0); jDim < NDIM; ++jDim)
delG[iDim][jDim] += dat.particle1_.getDeltaP()[iDim]
* dat.rij[jDim];
}
/*! \brief Discovers if a cube and a point intersect.
\param CubeOrigin The location of the cube relative to the point.
\param CubeDimensions The size of the cube sides.
\return If the point is inside/on the cube.
*/
inline bool point_cube(const magnet::math::Vector& CubeOrigin,
const magnet::math::Vector& CubeDimensions,
const double tol = 0)
{
for (size_t iDim(0); iDim < NDIM; ++iDim)
if (fabs(CubeOrigin[iDim]) > (CubeDimensions[iDim] / 2))
return false;
return true;
}
void
OPVACF::accPass()
{
++count;
BOOST_FOREACH(const std::tr1::shared_ptr<Species>& spec, Sim->dynamics.getSpecies())
BOOST_FOREACH(const size_t& ID, *spec->getRange())
for (size_t j = 0; j < CorrelatorLength; ++j)
for (size_t iDim(0); iDim < NDIM; ++iDim)
accG2[spec->getID()][j][iDim] += G[ID].front()[iDim] * G[ID][j][iDim];
}
PairEventData
DynNewtonian::parallelCubeColl(const IntEvent& event, const double& e, const double&, const EEventType& eType) const
{
Particle& particle1 = Sim->particles[event.getParticle1ID()];
Particle& particle2 = Sim->particles[event.getParticle2ID()];
updateParticlePair(particle1, particle2);
PairEventData retVal(particle1, particle2,
*Sim->species[particle1],
*Sim->species[particle2],
eType);
Sim->BCs->applyBC(retVal.rij, retVal.vijold);
size_t dim(0);
for (size_t iDim(1); iDim < NDIM; ++iDim)
if (fabs(retVal.rij[dim]) < fabs(retVal.rij[iDim])) dim = iDim;
double p1Mass = Sim->species[retVal.particle1_.getSpeciesID()]->getMass(particle1.getID());
double p2Mass = Sim->species[retVal.particle2_.getSpeciesID()]->getMass(particle2.getID());
double mu = p1Mass * p2Mass/ (p1Mass + p2Mass);
Vector collvec(0,0,0);
if (retVal.rij[dim] < 0)
collvec[dim] = -1;
else
collvec[dim] = 1;
retVal.rvdot = (retVal.rij | retVal.vijold);
retVal.dP = collvec * (1.0 + e) * mu * (collvec | retVal.vijold);
//This function must edit particles so it overrides the const!
particle1.getVelocity() -= retVal.dP / p1Mass;
particle2.getVelocity() += retVal.dP / p2Mass;
retVal.particle1_.setDeltaKE(0.5 * p1Mass * (particle1.getVelocity().nrm2()
- retVal.particle1_.getOldVel().nrm2()));
retVal.particle2_.setDeltaKE(0.5 * p2Mass * (particle2.getVelocity().nrm2()
- retVal.particle2_.getOldVel().nrm2()));
return retVal;
}
size_t
OPVTK::getCellID(Vector pos)
{
size_t retval(0);
size_t factor(1);
Sim->dynamics.BCs().applyBC(pos);
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
retval += factor
* static_cast<size_t>((pos[iDim] + 0.5 * Sim->primaryCellSize[iDim])
* invBinWidth[iDim]);
factor *= nBins[iDim];
}
return retval;
}
void
GSOCells::initialise(size_t nID)
{
Global::initialise(nID);
cuberootN = (unsigned long)(std::pow(Sim->N(), 1.0/3.0) + 0.5);
if (boost::math::pow<3>(cuberootN) != Sim->N())
M_throw() << "Cannot use single occupancy cells without a integer cube root of N"
<< "\nN = " << Sim->N()
<< "\nN^(1/3) = " << cuberootN;
for (size_t iDim(0); iDim < NDIM; ++iDim)
cellDimension[iDim] = Sim->primaryCellSize[iDim] / cuberootN;
if (std::dynamic_pointer_cast<const DynGravity>(Sim->dynamics))
dout << "Warning, in order for SingleOccupancyCells to work in gravity\n"
<< "You must add the ParabolaSentinel Global event." << std::endl;
}
void
OPSCParameter::initialise()
{
for (size_t iDim(0); iDim < NDIM; ++iDim)
if (Sim->primaryCellSize[iDim] != 1.0)
M_throw() << "Cannot use this parameter in a non-cubic box";
maxWaveNumber = lrint(std::pow(Sim->N, 1.0/3.0));
if (boost::math::pow<3>(maxWaveNumber) != Sim->N)
M_throw() << "Failed, N does not have an integer cube root!";
dout << "Max wavelength is "
<< 1.0 / (maxWaveNumber * Sim->units.unitLength()) << std::endl;
maxWaveNumber *= 2;
runningsum.resize(maxWaveNumber + 1, 0);
ticker();
}
IDRangeList
GCells::getParticleNeighbours(const magnet::math::MortonNumber<3>& particle_cell_coords) const
{
if (verbose)
{
derr
<< "Getting neighbours of cell " << particle_cell_coords.toString()
<< std::endl;
}
magnet::math::MortonNumber<3> zero_coords;
for (size_t iDim(0); iDim < NDIM; ++iDim)
zero_coords[iDim] = (particle_cell_coords[iDim].getRealValue() + cellCount[iDim] - overlink)
% cellCount[iDim];
IDRangeList retval;
//This initial reserve greatly speeds up the later inserts
retval.getContainer().reserve(32);
magnet::math::MortonNumber<3> coords(zero_coords);
for (size_t x(0); x < 2 * overlink + 1; ++x)
{
coords[0] = (zero_coords[0].getRealValue() + x) % cellCount[0];
for (size_t y(0); y < 2 * overlink + 1; ++y)
{
coords[1] = (zero_coords[1].getRealValue() + y) % cellCount[1];
for (size_t z(0); z < 2 * overlink + 1; ++z)
{
coords[2] = (zero_coords[2].getRealValue() + z) % cellCount[2];
const std::vector<size_t>& nlist = list[coords.getMortonNum()];
retval.getContainer().insert(retval.getContainer().end(), nlist.begin(), nlist.end());
}
}
}
return retval;
}
void
OPSCParameter::ticker()
{
++count;
for (size_t k(0); k <= maxWaveNumber; ++k)
{
std::complex<double> sum(0, 0);
for (const Particle& part : Sim->particles)
{
double psum(0);
for (size_t iDim(0); iDim < NDIM; ++iDim)
psum += part.getPosition()[iDim];
psum *= 2.0 * M_PI * k;
sum += std::complex<double>(std::cos(psum), std::sin(psum));
}
runningsum[k] += std::abs(sum);
}
}
double
DynGravity::getParabolaSentinelTime(const Particle& part) const
{
#ifdef DYNAMO_DEBUG
if (!isUpToDate(part))
M_throw() << "Particle is not up to date";
#endif
if (!part.testState(Particle::DYNAMIC)) return std::numeric_limits<float>::infinity(); //Particle is not dynamic (does not feel gravity)
Vector pos(part.getPosition()), vel(part.getVelocity());
Sim->BCs->applyBC(pos, vel);
//We return the time of the next turning point, per dimension
double time = std::numeric_limits<float>::infinity();
for (size_t iDim(0); iDim < NDIM; ++iDim)
if (g[iDim] != 0)
{
double tmpTime = - vel[iDim] / g[iDim];
if ((tmpTime > 0) && (tmpTime < time)) time = tmpTime;
}
return time;
}
void
OPRijVij::output(magnet::xml::XmlStream &XML)
{
XML << magnet::xml::tag("RijVijComponents");
typedef std::pair<const mapKey, mapdata> mappair;
BOOST_FOREACH(const mappair& pair1, rvdotacc)
{
XML << magnet::xml::tag("Element")
<< magnet::xml::attr("Type")
<< pair1.first.first
<< magnet::xml::attr("EventName")
<< getName(pair1.first.second, Sim);
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
XML << magnet::xml::tag("Rij")
<< magnet::xml::attr("dimension")
<< iDim
<< magnet::xml::chardata();
pair1.second.rij[iDim].outputHistogram(XML, 1.0);
XML << magnet::xml::endtag("Rij");
}
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
XML << magnet::xml::tag("Vij")
<< magnet::xml::attr("dimension")
<< iDim
<< magnet::xml::chardata();
pair1.second.vij[iDim].outputHistogram(XML, 1.0);
XML << magnet::xml::endtag("Vij");
}
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
XML << magnet::xml::tag("RijVijvsRij")
<< magnet::xml::attr("dimension")
<< iDim
<< magnet::xml::chardata();
for (size_t i(0); i < 2000; ++i)
XML << ((i - 1000.0) / 1000.0) << " "
<< pair1.second.rijcostheta[iDim][i].second
/ pair1.second.rijcostheta[iDim][i].first
<< "\n";
XML << magnet::xml::endtag("RijVijvsRij");
}
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
XML << magnet::xml::tag("RijvsRijVij")
<< magnet::xml::attr("dimension")
<< iDim
<< magnet::xml::chardata();
for (size_t i(0); i < 1000; ++i)
XML << ( static_cast<double>(i) / -1000.0) << " "
<< pair1.second.costhetarij[iDim][i].second
/ pair1.second.costhetarij[iDim][i].first
<< "\n";
XML << magnet::xml::endtag("RijvsRijVij");
}
for (size_t iDim(0); iDim < NDIM; ++iDim)
{
XML << magnet::xml::tag("XijRvdot")
<< magnet::xml::attr("dimension")
<< iDim
<< magnet::xml::chardata();
for (size_t i1(0); i1 < 200; ++i1)
{
for (size_t i2(0); i2 < 100; ++i2)
XML << ( (static_cast<double>(i1) - 100.0) / 100.0) << " "
<< ( static_cast<double>(i2) / -100.0) << " "
<< static_cast<double>(pair1.second.anglemap[iDim][i1][i2])
/ static_cast<double>(pair1.second.anglemapcount)
<< "\n";
XML << "\n";
}
XML << magnet::xml::endtag("XijRvdot");
}
XML << magnet::xml::endtag("Element");
}
void
OPVTK::eventUpdate(const IntEvent& IEvent, const PairEventData& PDat)
{
if (CollisionStats)
{
++collCounter[getCellID(PDat.particle1_.getParticle().getPosition())];
++collCounter[getCellID(PDat.particle2_.getParticle().getPosition())];
if (!(++eventCounter % 50000))
{
char *fileName;
if ( asprintf(&fileName, "%05ld", ++collstatsfilecounter) < 0)
M_throw() << "asprintf error in VTK";
std::ofstream of((std::string("CollStats") + fileName + std::string(".vtu")).c_str());
free(fileName);
magnet::xml::XmlStream XML(of);
XML << magnet::xml::tag("VTKFile")
<< magnet::xml::attr("type") << "ImageData"
<< magnet::xml::attr("version") << "0.1"
<< magnet::xml::attr("byte_order") << "LittleEndian"
<< magnet::xml::attr("compressor") << "vtkZLibDataCompressor"
<< magnet::xml::tag("ImageData")
<< magnet::xml::attr("WholeExtent");
for (size_t iDim(0); iDim < NDIM; ++iDim)
XML << " " << "0 " << nBins[iDim] - 1;
XML << magnet::xml::attr("Origin");
for (size_t iDim(0); iDim < NDIM; ++iDim)
XML << (Sim->primaryCellSize[iDim] * (-0.5))
/ Sim->dynamics.units().unitLength()
<< " ";
XML << magnet::xml::attr("Spacing");
for (size_t iDim(0); iDim < NDIM; ++iDim)
XML << binWidth[iDim] / Sim->dynamics.units().unitLength() << " ";
XML << magnet::xml::tag("Piece")
<< magnet::xml::attr("Extent");
for (size_t iDim(0); iDim < NDIM; ++iDim)
XML << " " << "0 " << nBins[iDim] - 1;
XML << magnet::xml::tag("PointData");
//////////////////////////HERE BEGINS THE OUTPUT OF THE FIELDS
////////////SAMPLE COUNTS
XML << magnet::xml::tag("DataArray")
<< magnet::xml::attr("type") << "Int32"
<< magnet::xml::attr("Name") << "Collisions Per Snapshot"
<< magnet::xml::attr("format") << "ascii"
<< magnet::xml::chardata();
BOOST_FOREACH(const unsigned long& val, collCounter)
XML << val;
XML << "\n" << magnet::xml::endtag("DataArray");
BOOST_FOREACH(unsigned long& val, collCounter)
val = 0;
std::vector<size_t> density(nBins[0] * nBins[1] * nBins[2], 0);
BOOST_FOREACH(const Particle& part, Sim->particleList)
++density[getCellID(part.getPosition())];
XML << magnet::xml::tag("DataArray")
<< magnet::xml::attr("type") << "Float32"
<< magnet::xml::attr("Name") << "Density"
<< magnet::xml::attr("format") << "ascii"
<< magnet::xml::chardata();
BOOST_FOREACH(const size_t& val, density)
XML << (val / binVol);
XML << "\n" << magnet::xml::endtag("DataArray");
////////////Postamble
XML << magnet::xml::endtag("PointData")
<< magnet::xml::tag("CellData")
<< magnet::xml::endtag("CellData")
<< magnet::xml::endtag("Piece")
<< magnet::xml::endtag("ImageData")
<< magnet::xml::endtag("VTKFile");
}
}
void
OPVTK::output(magnet::xml::XmlStream& XML)
{
XML << magnet::xml::tag("VTK")
<< magnet::xml::attr("ImagesTaken") << imageCounter
<< magnet::xml::tag("VTKFile")
<< magnet::xml::attr("type") << "ImageData"
<< magnet::xml::attr("version") << "0.1"
<< magnet::xml::attr("byte_order") << "LittleEndian"
<< magnet::xml::attr("compressor") << "vtkZLibDataCompressor"
<< magnet::xml::tag("ImageData")
<< magnet::xml::attr("WholeExtent");
for (size_t iDim(0); iDim < NDIM; ++iDim)
XML << " " << "0 " << nBins[iDim] - 1;
XML << magnet::xml::attr("Origin");
for (size_t iDim(0); iDim < NDIM; ++iDim)
XML << (Sim->primaryCellSize[iDim] * (-0.5))
/ Sim->dynamics.units().unitLength()
<< " ";
XML << magnet::xml::attr("Spacing");
for (size_t iDim(0); iDim < NDIM; ++iDim)
XML << binWidth[iDim] / Sim->dynamics.units().unitLength() << " ";
XML << magnet::xml::tag("Piece")
<< magnet::xml::attr("Extent");
for (size_t iDim(0); iDim < NDIM; ++iDim)
XML << " " << "0 " << nBins[iDim] - 1;
XML << magnet::xml::tag("PointData");
////////////SAMPLE COUNTS
XML << magnet::xml::tag("DataArray")
<< magnet::xml::attr("type") << "Int32"
<< magnet::xml::attr("Name") << "Samples per cell"
<< magnet::xml::attr("format") << "ascii"
<< magnet::xml::chardata();
for (size_t id(0); id < SampleCounter.size(); ++id)
XML << SampleCounter[id];
XML << "\n" << magnet::xml::endtag("DataArray");
////////////Momentum field
XML << magnet::xml::tag("DataArray")
<< magnet::xml::attr("type") << "Float32"
<< magnet::xml::attr("Name") << "Avg Particle Momentum"
<< magnet::xml::attr("NumberOfComponents") << NDIM
<< magnet::xml::attr("format") << "ascii"
<< magnet::xml::chardata();
for (size_t id(0); id < Momentum.size(); ++id)
{
for (size_t iDim(0); iDim < NDIM; ++iDim)
//Nans are not tolerated by paraview
if (SampleCounter[id])
XML << Momentum[id][iDim]
/ (SampleCounter[id] * Sim->dynamics.units().unitMomentum());
else
XML << 0.0;
}
XML << "\n" << magnet::xml::endtag("DataArray");
////////////Energy
XML << magnet::xml::tag("DataArray")
<< magnet::xml::attr("type") << "Float32"
<< magnet::xml::attr("Name") << "Avg Particle Energy"
<< magnet::xml::attr("format") << "ascii"
<< magnet::xml::chardata();
for (size_t id(0); id < SampleCounter.size(); ++id)
//Nans are not tolerated by paraview
if (SampleCounter[id])
XML << mVsquared[id] * 0.5
/ (SampleCounter[id] * Sim->dynamics.units().unitEnergy());
else
XML << 0.0;
XML << "\n" << magnet::xml::endtag("DataArray");
////////////Postamble
XML << magnet::xml::endtag("PointData")
<< magnet::xml::tag("CellData")
<< magnet::xml::endtag("CellData")
<< magnet::xml::endtag("Piece")
<< magnet::xml::endtag("ImageData")
<< magnet::xml::endtag("VTKFile")
<< magnet::xml::endtag("VTK");
}
void
CSRingDSMC::initialise(size_t nID)
{
ID = nID;
dt = tstep;
n12 = 0;
n13 = 0;
factor12 = range1->size()
* diameter * M_PI * chi12 * tstep
/ Sim->dynamics.getSimVolume();
factor13 = range1->size()
* diameter * M_PI * chi13 * tstep
/ Sim->dynamics.getSimVolume();
if (maxprob12 == 0.0)
{
boost::variate_generator
<dynamo::baseRNG&, boost::uniform_int<size_t> >
id1sampler(Sim->ranGenerator,
boost::uniform_int<size_t>(0, (range1->size()/2) - 1));
//Just do some quick testing to get an estimate
for (size_t n = 0; n < 1000; ++n)
{
size_t pairID(id1sampler());
const Particle& p1(Sim->particleList[*(range1->begin() + 2 * pairID)]);
const Particle& p2(Sim->particleList[*(range1->begin() + 2 * pairID + 1)]);
Sim->dynamics.getLiouvillean().updateParticlePair(p1, p2);
CPDData PDat;
for (size_t iDim(0); iDim < NDIM; ++iDim)
PDat.rij[iDim] = Sim->normal_sampler();
PDat.rij *= diameter / PDat.rij.nrm();
Sim->dynamics.getLiouvillean().DSMCSpheresTest(p1, p2, maxprob12,
factor12, PDat);
}
}
if (maxprob13 == 0.0)
{
boost::variate_generator
<dynamo::baseRNG&, boost::uniform_int<size_t> >
id1sampler(Sim->ranGenerator,
boost::uniform_int<size_t>(0, range1->size() - 1));
//Just do some quick testing to get an estimate
for (size_t n = 0; n < 1000; ++n)
{
const Particle& p1(Sim->particleList[*(range1->begin() + id1sampler())]);
size_t secondID(id1sampler());
while ((secondID == p1.getID())
|| ((secondID % 2)
? ((secondID-1) == p1.getID())
: ((secondID+1) == p1.getID())))
secondID = id1sampler();
const Particle& p2(Sim->particleList[*(range1->begin() + secondID)]);
Sim->dynamics.getLiouvillean().updateParticlePair(p1, p2);
CPDData PDat;
for (size_t iDim(0); iDim < NDIM; ++iDim)
PDat.rij[iDim] = Sim->normal_sampler();
PDat.rij *= diameter / PDat.rij.nrm();
Sim->dynamics.getLiouvillean().DSMCSpheresTest(p1, p2, maxprob13,
factor13, PDat);
}
}
if (maxprob12 > 0.5)
derr << "MaxProbability12 is " << maxprob12
<< "\nNpairs12 per step is " << range1->size() * maxprob12 << std::endl;
else
dout << "MaxProbability12 is " << maxprob12
<< "\nNpairs12 per step is " << range1->size() * maxprob12 << std::endl;
if (maxprob13 > 0.5)
derr << "MaxProbability13 is " << maxprob13
<< "\nNpairs13 per step is " << range1->size() * maxprob13 << std::endl;
else
dout << "MaxProbability13 is " << maxprob13
<< "\nNpairs13 per step is " << range1->size() * maxprob13 << std::endl;
if (range1->size() * maxprob12 < 2.0)
derr << "The 12 probability is low" << std::endl;
if (range1->size() * maxprob13 < 2.0)
derr << "The 13 probability is low" << std::endl;
}
void
CSRingDSMC::runEvent() const
{
double locdt = dt;
#ifdef DYNAMO_DEBUG
if (boost::math::isnan(locdt))
M_throw() << "A NAN system event time has been found";
#endif
Sim->dSysTime += locdt;
Sim->ptrScheduler->stream(locdt);
//dynamics must be updated first
Sim->dynamics.stream(locdt);
dt = tstep;
locdt += Sim->freestreamAcc;
Sim->freestreamAcc = 0;
BOOST_FOREACH(std::tr1::shared_ptr<OutputPlugin>& Ptr, Sim->outputPlugins)
Ptr->eventUpdate(*this, NEventData(), locdt);
//////////////////// T(1,2) operator
double intPart;
double fracpart = std::modf(maxprob12 * range1->size(), &intPart);
size_t nmax = static_cast<size_t>(intPart) + (Sim->uniform_sampler() < fracpart);
{
boost::variate_generator
<dynamo::baseRNG&, boost::uniform_int<size_t> >
id1sampler(Sim->ranGenerator,
boost::uniform_int<size_t>(0, (range1->size()/2) - 1));
for (size_t n = 0; n < nmax; ++n)
{
size_t pairID(id1sampler());
const Particle& p1(Sim->particleList[*(range1->begin() + 2 * pairID)]);
const Particle& p2(Sim->particleList[*(range1->begin() + 2 * pairID + 1)]);
Sim->dynamics.getLiouvillean().updateParticlePair(p1, p2);
CPDData PDat;
for (size_t iDim(0); iDim < NDIM; ++iDim)
PDat.rij[iDim] = Sim->normal_sampler();
PDat.rij *= diameter / PDat.rij.nrm();
if (Sim->dynamics.getLiouvillean().DSMCSpheresTest
(p1, p2, maxprob12, factor12, PDat))
{
++Sim->eventCount;
++n12;
const PairEventData
SDat(Sim->dynamics.getLiouvillean().DSMCSpheresRun(p1, p2, e, PDat));
Sim->signalParticleUpdate(SDat);
Sim->ptrScheduler->fullUpdate(p1, p2);
BOOST_FOREACH(std::tr1::shared_ptr<OutputPlugin>& Ptr, Sim->outputPlugins)
Ptr->eventUpdate(*this, SDat, 0.0);
}
}
}
//////////////////// T(1,3) operator
{
fracpart = std::modf(maxprob13 * range1->size(), &intPart);
nmax = static_cast<size_t>(intPart) + (Sim->uniform_sampler() < fracpart);
boost::variate_generator
<dynamo::baseRNG&, boost::uniform_int<size_t> >
id1sampler(Sim->ranGenerator,
boost::uniform_int<size_t>(0, range1->size() - 1));
for (size_t n = 0; n < nmax; ++n)
{
const Particle& p1(Sim->particleList[*(range1->begin() + id1sampler())]);
size_t secondID(id1sampler());
while ((secondID == p1.getID())
|| ((secondID % 2)
? ((secondID-1) == p1.getID())
: ((secondID+1) == p1.getID())))
secondID = id1sampler();
const Particle& p2(Sim->particleList[*(range1->begin() + secondID)]);
Sim->dynamics.getLiouvillean().updateParticlePair(p1, p2);
CPDData PDat;
for (size_t iDim(0); iDim < NDIM; ++iDim)
PDat.rij[iDim] = Sim->normal_sampler();
PDat.rij *= diameter / PDat.rij.nrm();
if (Sim->dynamics.getLiouvillean().DSMCSpheresTest
(p1, p2, maxprob13, factor13, PDat))
{
++Sim->eventCount;
++n13;
const PairEventData
SDat(Sim->dynamics.getLiouvillean().DSMCSpheresRun(p1, p2, e, PDat));
Sim->signalParticleUpdate(SDat);
Sim->ptrScheduler->fullUpdate(p1, p2);
BOOST_FOREACH(std::tr1::shared_ptr<OutputPlugin>& Ptr, Sim->outputPlugins)
Ptr->eventUpdate(*this, SDat, 0.0);
}
}
}
}
