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// Info.cc is a part of the PYTHIA event generator.
// Copyright (C) 2012 Torbjorn Sjostrand.
// PYTHIA is licenced under the GNU GPL version 2, see COPYING for details.
// Please respect the MCnet Guidelines, see GUIDELINES for details.
// Function definitions (not found in the header) for the Info class.
#include "Info.h"
namespace Pythia8 {
//==========================================================================
// Info class.
// This class contains a mixed bag of information on the event generation
// activity, especially on the current subprocess properties.
//--------------------------------------------------------------------------
// Constants: could be changed here if desired, but normally should not.
// These are of technical nature, as described for each.
// Number of times the same error message will be repeated at most.
const int Info::TIMESTOPRINT = 1;
// LHA convention with cross section in pb may require conversion from mb.
const double Info::CONVERTMB2PB = 1e9;
//--------------------------------------------------------------------------
// List (almost) all information currently set.
void Info::list(ostream& os) const {
// Header and beam info.
os << "\n -------- PYTHIA Info Listing ------------------------"
<< "---------------- \n \n"
<< scientific << setprecision(3)
<< " Beam A: id = " << setw(6) << idASave << ", pz = " << setw(10)
<< pzASave << ", e = " << setw(10) << eASave << ", m = " << setw(10)
<< mASave << ".\n"
<< " Beam B: id = " << setw(6) << idBSave << ", pz = " << setw(10)
<< pzBSave << ", e = " << setw(10) << eBSave << ", m = " << setw(10)
<< mBSave << ".\n\n";
// Done if no subprocess has been defined.
if (codeSave == 0 && nFinalSave == 0) {
os << " No process has been set; something must have gone wrong! \n"
<< "\n -------- End PYTHIA Info Listing --------------------"
<< "----------------" << endl;
return;
}
// Colliding parton info.
if (isRes) {
os << " In 1: id = " << setw(4) << id1pdfSave << ", x = " << setw(10)
<< x1pdfSave << ", pdf = " << setw(10) << pdf1Save << " at Q2 = "
<< setw(10) << Q2FacSave << ".\n"
<< " In 2: id = " << setw(4) << id2pdfSave << ", x = " << setw(10)
<< x2pdfSave << ", pdf = " << setw(10) << pdf2Save << " at same Q2.\n";
bool matchIdX = true;
if (id1pdfSave != id1Save || id2pdfSave != id2Save) matchIdX = false;
if (abs(x1pdfSave - x1Save) > 1e-4 * x1Save) matchIdX = false;
if (abs(x2pdfSave - x2Save) > 1e-4 * x2Save) matchIdX = false;
if (!matchIdX) os << " Warning: above flavour/x info does not match"
<< " incoming partons in event!\n";
os << "\n";
}
// Process name and code.
os << ((isRes && !hasSubSave) ? " Subprocess " : " Process ") << nameSave
<< " with code " << codeSave << " is 2 -> " << nFinalSave << ".\n";
// Subprocess name and code for minimum bias processes.
if (hasSubSave)
os << " Subprocess " << nameSubSave << " with code " << codeSubSave
<< " is 2 -> " << nFinalSubSave << ".\n";
// Process-type-specific kinematics information.
if (isRes && nFinalSave == 1)
os << " It has sHat = " << setw(10) << sH << ".\n";
else if ( isRes && nFinalSave == 2)
os << " It has sHat = " << setw(10) << sH << ", tHat = "
<< setw(10) << tH << ", uHat = " << setw(10) << uH << ",\n"
<< " pTHat = " << setw(10) << pTH << ", m3Hat = "
<< setw(10) << m3H << ", m4Hat = " << setw(10) << m4H << ",\n"
<< " thetaHat = " << setw(10) << thetaH << ", phiHat = "
<< setw(10) << phiH << ".\n";
else if ( nFinalSave == 2)
os << " It has s = " << setw(10) << sH << ", t = " << setw(10)
<< tH << ", u = " << setw(10) << uH << ",\n"
<< " pT = " << setw(10) << pTH << ", m3 = " << setw(10)
<< m3H << ", m4 = " << setw(10) << m4H << ",\n"
<< " theta = " << setw(10) << thetaH << ", phi = " << setw(10)
<< phiH << ".\n";
else if ( isRes && nFinalSave == 3)
os << " It has sHat = " << setw(10) << sH << ", <pTHat> = "
<< setw(10) << pTH << ".\n";
// Couplings.
if (isRes) os << " alphaEM = " << setw(10) << alphaEMSave
<< ", alphaS = " << setw(10) << alphaSSave << " at Q2 = "
<< setw(10) << Q2RenSave << ".\n";
// Impact parameter.
if (bIsSet) os << "\n Impact parameter b = " << setw(10) << bMPISave
<< " gives enhancement factor = " << setw(10) << enhanceMPISave
<< ".\n";
// Multiparton interactions and shower evolution.
if (evolIsSet) os << " Max pT scale for MPI = " << setw(10) << pTmaxMPISave
<< ", ISR = " << setw(10) << pTmaxISRSave << ", FSR = " << setw(10)
<< pTmaxISRSave << ".\n Number of MPI = " << setw(5) << nMPISave
<< ", ISR = " << setw(5) << nISRSave << ", FSRproc = " << setw(5)
<< nFSRinProcSave << ", FSRreson = " << setw(5) << nFSRinResSave
<< ".\n";
// Listing finished.
os << "\n -------- End PYTHIA Info Listing --------------------"
<< "----------------" << endl;
}
//--------------------------------------------------------------------------
// Event weight and accumulated weight.
double Info::weight() const { return (abs(lhaStrategySave) == 4)
? CONVERTMB2PB * weightSave : weightSave;
}
double Info::weightSum() const {return (abs(lhaStrategySave) == 4)
? CONVERTMB2PB * wtAccSum : wtAccSum;
}
//--------------------------------------------------------------------------
// Print a message the first few times. Insert in database.
void Info::errorMsg(string messageIn, string extraIn, bool showAlways,
ostream& os) {
// Recover number of times message occured. Also inserts new string.
int times = messages[messageIn];
++messages[messageIn];
// Print message the first few times.
if (times < TIMESTOPRINT || showAlways) os << " PYTHIA "
<< messageIn << " " << extraIn << endl;
}
//--------------------------------------------------------------------------
// Provide total number of errors/aborts/warnings experienced to date.
int Info::errorTotalNumber() {
int nTot = 0;
for ( map<string, int>::iterator messageEntry = messages.begin();
messageEntry != messages.end(); ++messageEntry)
nTot += messageEntry->second;
return nTot;
}
//--------------------------------------------------------------------------
// Print statistics on errors/aborts/warnings.
void Info::errorStatistics(ostream& os) {
// Header.
os << "\n *------- PYTHIA Error and Warning Messages Statistics "
<< "----------------------------------------------------------* \n"
<< " | "
<< " | \n"
<< " | times message "
<< " | \n"
<< " | "
<< " | \n";
// Loop over all messages
map<string, int>::iterator messageEntry = messages.begin();
if (messageEntry == messages.end())
os << " | 0 no errors or warnings to report "
<< " | \n";
while (messageEntry != messages.end()) {
// Message printout.
string temp = messageEntry->first;
int len = temp.length();
temp.insert( len, max(0, 102 - len), ' ');
os << " | " << setw(6) << messageEntry->second << " "
<< temp << " | \n";
++messageEntry;
}
// Done.
os << " | "
<< " | \n"
<< " *------- End PYTHIA Error and Warning Messages Statistics"
<< " ------------------------------------------------------* "
<< endl;
}
//==========================================================================
} // end namespace Pythia8
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