void Instrument::sumResults(QList<Array*> arrays)
{
PeerToPeerCommunicator* comm = find<PeerToPeerCommunicator>();
Log* log = find<Log>();
TimeLogger logger(log->verbose() && comm->isMultiProc() ? log : 0, "communication of the observed fluxes");
foreach (Array* arr, arrays) if (arr->size()) comm->sum(*arr);
}
void PanDustSystem::sumResults(bool ynstellar)
{
// Get a pointer to the PeerToPeerCommunicator of this simulation
PeerToPeerCommunicator * comm = find<PeerToPeerCommunicator>();
Log* log = find<Log>();
TimeLogger logger(log->verbose() && comm->isMultiProc() ? log : 0, "communication of the absorbed luminosities");
// Sum the array of luminosities across all processes
comm->sum_all(ynstellar ? _Labsstelvv.getArray() : _Labsdustvv.getArray());
}
double PanDustSystem::Labsdusttot() const
{
double sum = 0;
if (_haveLabsdust)
for (int m=0; m<_Ncells; m++)
for (int ell=0; ell<_Nlambda; ell++)
sum += _Labsdustvv(m,ell);
PeerToPeerCommunicator * comm = find<PeerToPeerCommunicator>();
Array arr(1);
arr[0] = sum;
comm->sum_all(arr);
return arr[0];
}
void InstrumentFrame::calibrateAndWriteDataFrames(int ell, QList<Array*> farrays, QStringList fnames)
{
PeerToPeerCommunicator* comm = find<PeerToPeerCommunicator>();
if (!comm->isRoot()) return;
Units* units = find<Units>();
WavelengthGrid* lambdagrid = find<WavelengthGrid>();
// conversion from bolometric luminosities (units W) to monochromatic luminosities (units W/m)
// --> divide by delta-lambda
double dlambda = lambdagrid->dlambda(ell);
// correction for the area of the pixels of the images; the units are now W/m/sr
// --> divide by area
double xpresang = 2.0*atan(_xpres/(2.0*_distance));
double ypresang = 2.0*atan(_ypres/(2.0*_distance));
double area = xpresang*ypresang;
// calibration step 3: conversion of the flux per pixel from monochromatic luminosity units (W/m/sr)
// to flux density units (W/m3/sr) by taking into account the distance
// --> divide by fourpid2
double fourpid2 = 4.0*M_PI*_distance*_distance;
// conversion from program SI units (at this moment W/m3/sr) to the correct output units
// --> multiply by unit conversion factor
double unitfactor = units->osurfacebrightness(lambdagrid->lambda(ell), 1.);
// perform the conversion, in place
foreach (Array* farr, farrays)
{
(*farr) *= (unitfactor / (dlambda * area * fourpid2));
}
// write a FITS file for each array
for (int q = 0; q < farrays.size(); q++)
{
QString filename = find<FilePaths>()->output(_instrument->instrumentName()
+ "_" + fnames[q] + "_" + QString::number(ell) + ".fits");
find<Log>()->info("Writing " + fnames[q] + " flux " + QString::number(ell)
+ " to FITS file " + filename + "...");
FITSInOut::write(filename, *(farrays[q]), _Nxp, _Nyp, 1,
units->olength(_xpres), units->olength(_ypres),
units->usurfacebrightness(), units->ulength());
}
}
void Image::saveto(const SimulationItem* item, const Array& data, QString filename, QString description)
{
// Cache a pointer to the logger
Log* log = item->find<Log>();
// Determine the path of the output FITS file
QString filepath = item->find<FilePaths>()->output(filename.endsWith(".fits") ? filename : filename + ".fits");
// Try to find a PeerToPeerCommunicator object
PeerToPeerCommunicator* comm = 0;
try {comm = item->find<PeerToPeerCommunicator>();}
catch (FatalError) {}
// Only write the FITS file if this process is the root or no PeerToPeerCommunicator was found
if (!comm || comm->isRoot())
{
log->info("Writing " + description + " to " + filepath + "...");
FITSInOut::write(filepath, data, _xsize, _ysize, _nframes, _incx, _incy, _xc, _yc, _dataunits, _xyunits);
}
}
void PanDustSystem::write() const
{
DustSystem::write();
PeerToPeerCommunicator* comm = find<PeerToPeerCommunicator>();
bool dataParallel = comm->dataParallel();
// If requested, output the interstellar radiation field in every dust cell to a data file
if (_writeISRF)
{
WavelengthGrid* lambdagrid = find<WavelengthGrid>();
Units* units = find<Units>();
// Create a text file
TextOutFile file(this, "ds_isrf", "ISRF");
// Write the header
file.writeLine("# Mean field intensities for all dust cells with nonzero absorption");
file.addColumn("dust cell index", 'd');
file.addColumn("x coordinate of cell center (" + units->ulength() + ")", 'g');
file.addColumn("y coordinate of cell center (" + units->ulength() + ")", 'g');
file.addColumn("z coordinate of cell center (" + units->ulength() + ")", 'g');
for (int ell=0; ell<_Nlambda; ell++)
file.addColumn("J_lambda (W/m3/sr) for lambda = "
+ QString::number(units->owavelength(lambdagrid->lambda(ell)))
+ " " + units->uwavelength(), 'g');
// Write one line for each dust cell with nonzero absorption
for (int m=0; m<_Ncells; m++)
{
if (!dataParallel)
{
double Ltotm = Labs(m);
if (Ltotm>0.0)
{
QList<double> values;
Position bfr = _grid->centralPositionInCell(m);
values << m << units->olength(bfr.x()) << units->olength(bfr.y()) << units->olength(bfr.z());
for (auto J : meanintensityv(m)) values << J;
file.writeRow(values);
}
}
else // for distributed mode
{
QList<double> values;
Position bfr = _grid->centralPositionInCell(m);
values << m << units->olength(bfr.x()) << units->olength(bfr.y()) << units->olength(bfr.z());
// the correct process gets Jv
Array Jv(_Nlambda);
if (_assigner->validIndex(m)) Jv = meanintensityv(m);
// and broadcasts it
int sender = _assigner->rankForIndex(m);
comm->broadcast(Jv,sender);
if (Jv.sum()>0)
{
for (auto J : Jv) values << J;
file.writeRow(values);
}
}
}
}
// If requested, output temperature map(s) along coordinate axes and temperature data for each dust cell
if (_writeTemp)
{
// Parallelize the calculation over the threads
Parallel* parallel = find<ParallelFactory>()->parallel();
// If the necessary data is distributed over the processes, do the calculation on all processes.
// Else, let the root do everything.
bool isRoot = comm->isRoot();
// Output temperature map(s) along coordinate axes
{
// Construct a private class instance to do the work (parallelized)
WriteTempCut wt(this);
// Get the dimension of the dust grid
int dimDust = _grid->dimension();
// For the xy plane (always)
{
wt.setup(1,1,0);
if (dataParallel) parallel->call(&wt, Np);
else if (isRoot) parallel->call(&wt, Np);
wt.write();
}
// For the xz plane (only if dimension is at least 2)
if (dimDust >= 2)
{
wt.setup(1,0,1);
if (dataParallel) parallel->call(&wt, Np);
else if (isRoot) parallel->call(&wt, Np);
wt.write();
}
// For the yz plane (only if dimension is 3)
if (dimDust == 3)
{
wt.setup(0,1,1);
if (dataParallel) parallel->call(&wt, Np);
else if (isRoot) parallel->call(&wt, Np);
wt.write();
}
}
// Output a text file with temperature data for each dust cell
{
find<Log>()->info("Calculating indicative dust temperatures for each cell...");
// Construct a private class instance to do the work (parallelized)
WriteTempData wt(this);
// Call the body on the right cells. If everything is available, no unnecessary communication will be done.
if (dataParallel)
{
// Calculate the temperature for the cells owned by this process
parallel->call(&wt, _assigner);
}
else if (isRoot)
{
// Let root calculate it for everything
parallel->call(&wt, _Ncells);
}
wt.write();
}
}
}
void PanDustSystem::setupSelfAfter()
{
DustSystem::setupSelfAfter();
PeerToPeerCommunicator* comm = find<PeerToPeerCommunicator>();
bool dataParallel = comm->dataParallel();
if (dataParallel) // assign this process to work with a subset of dust cells
_assigner = new StaggeredAssigner(_Ncells, this);
WavelengthGrid* wg = find<WavelengthGrid>();
// resize the tables that hold the absorbed energies for each dust cell and wavelength
// - absorbed stellar emission is relevant for calculating dust emission
// - absorbed dust emission is relevant for calculating dust self-absorption
_haveLabsStel = false;
_haveLabsDust = false;
if (dustemission())
{
if (dataParallel)
_LabsStelvv.initialize("Absorbed Stellar Luminosity Table", ParallelTable::WriteState::COLUMN,
wg->assigner(), _assigner, comm);
else
_LabsStelvv.initialize("Absorbed Stellar Luminosity Table", ParallelTable::WriteState::COLUMN,
_Nlambda, _Ncells, comm);
_haveLabsStel = true;
if (selfAbsorption())
{
if (dataParallel)
_LabsDustvv.initialize("Absorbed Dust Luminosity Table", ParallelTable::WriteState::COLUMN,
wg->assigner(), _assigner, comm);
else
_LabsDustvv.initialize("Absorbed Dust Luminosity Table", ParallelTable::WriteState::COLUMN,
_Nlambda, _Ncells, comm);
_haveLabsDust = true;
}
}
// write emissivities if so requested
if (writeEmissivity())
{
// write emissivities for a range of scaled Mathis ISRF input fields
Array Jv = ISRF::mathis(this);
for (int i=-4; i<7; i++)
{
double U = pow(10.,i);
writeEmissivitiesForField(this, U*Jv, "Mathis_U_" + QString::number(U,'e',0),
QString::number(U) + " * Mathis ISRF");
}
// write emissivities for a range of diluted Black Body input fields
const int Tv[] = { 3000, 6000, 9000, 12000, 15000, 18000 };
const double Dv[] = { 8.28e-12, 2.23e-13, 2.99e-14, 7.23e-15, 2.36e-15, 9.42e-16 };
for (int i=0; i<6; i++)
{
Jv = Dv[i] * ISRF::blackbody(this, Tv[i]);
writeEmissivitiesForField(this, Jv,
QString("BlackBody_T_%1").arg(Tv[i], 5, 10, QChar('0')),
QString("%1 * B(%2K)").arg(Dv[i],0,'e',2).arg(Tv[i]) );
}
find<Log>()->info("Done writing emissivities.");
}
}
