FastJet 3.0.2
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00001 //STARTHEADER 00002 // $Id: fastjet_timing_plugins.cc 2806 2011-12-01 17:21:00Z salam $ 00003 // 00004 // Copyright (c) 2005-2011, Matteo Cacciari, Gavin P. Salam and Gregory Soyez 00005 // 00006 //---------------------------------------------------------------------- 00007 // This file is part of FastJet. 00008 // 00009 // FastJet is free software; you can redistribute it and/or modify 00010 // it under the terms of the GNU General Public License as published by 00011 // the Free Software Foundation; either version 2 of the License, or 00012 // (at your option) any later version. 00013 // 00014 // The algorithms that underlie FastJet have required considerable 00015 // development and are described in hep-ph/0512210. If you use 00016 // FastJet as part of work towards a scientific publication, please 00017 // include a citation to the FastJet paper. 00018 // 00019 // FastJet is distributed in the hope that it will be useful, 00020 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00021 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00022 // GNU General Public License for more details. 00023 // 00024 // You should have received a copy of the GNU General Public License 00025 // along with FastJet. If not, see <http://www.gnu.org/licenses/>. 00026 //---------------------------------------------------------------------- 00027 //ENDHEADER 00028 00029 00030 //---------------------------------------------------------------------- 00031 /// fastjet_timing.cc: Program to help time and test the fastjet package 00032 /// 00033 /// It reads files containing multiple events in the format 00034 /// p1x p1y p1z E1 00035 /// p2x p2y p2z E2 00036 /// ... 00037 /// #END 00038 /// 00039 /// An example input file containing 10 events is included as 00040 /// data/Pythia-PtMin1000-LHC-10ev.dat 00041 /// 00042 /// Usage: 00043 /// fastjet_timing [-strategy NUMBER] [-repeat nrepeats] [-massive] \ 00044 /// [-combine nevents] [-r Rparameter] [-incl ptmin] [...] \ 00045 /// < data_file 00046 /// 00047 /// where the clustering can be repeated to aid timing and multiple 00048 /// events can be combined to get to larger multiplicities. Some options: 00049 /// 00050 /// Options for reading 00051 /// ------------------- 00052 /// 00053 /// -nev n number of events to run 00054 /// 00055 /// -combine n for combining multiple events from the data file in order 00056 /// to get a single high-multipicity event to run. 00057 /// 00058 /// -massless read in only the 3-momenta and deduce energies assuming 00059 /// that particles are massless 00060 /// 00061 /// -dense adds dense ghost coverage 00062 /// 00063 /// -repeat n repeats each event n times 00064 /// 00065 /// -nhardest n keep only the n hardest particles in the event 00066 /// 00067 /// -file name read from the corresponding file rather than stdin. 00068 /// (The file will be reopened for each new jet alg.; in 00069 /// constrast, if you use stdin, each new alg will take a 00070 /// new event). 00071 /// 00072 /// Output Options 00073 /// -------------- 00074 /// 00075 /// -incl ptmin output of all inclusive jets with pt > ptmin is obtained 00076 /// with the -incl option. 00077 /// 00078 /// -repeat-incl ptmin 00079 /// same as -incl ptmin but do it for each repetition 00080 /// of the clustering 00081 /// 00082 /// -excld dcut output of all exclusive jets as obtained in a clustering 00083 /// with dcut 00084 /// 00085 /// -excly ycut output of all exclusive jets as obtained in a clustering 00086 /// with ycut 00087 /// 00088 /// -excln n output of clustering to n exclusive jets 00089 /// 00090 /// -ee-print print things as px,py,pz,E 00091 /// 00092 /// -get-all-dij print out all dij values 00093 /// -get-all-yij print out all yij values 00094 /// 00095 /// -const show jet constituents (works with excl jets) 00096 /// 00097 /// -write for writing out detailed clustering sequence (valuable 00098 /// for testing purposes) 00099 /// 00100 /// -unique_write writes out the sequence of dij's according to the 00101 /// "unique_history_order" (useful for verifying consistency 00102 /// between different clustering strategies). 00103 /// 00104 /// -root file sends output to file that can be read in with the script in 00105 /// root/ so as to show a lego-plot of the event 00106 /// 00107 /// -cones show extra info about internal steps for SISCone 00108 /// 00109 /// -area calculate areas. Additional options include 00110 /// -area:active 00111 /// -area:passive 00112 /// -area:explicit 00113 /// -area:voronoi Rfact 00114 /// -area:repeat nrepeat 00115 /// -ghost-area area 00116 /// -ghost-maxrap maxrap 00117 /// -area:fj2 place ghosts as in fj2 00118 /// 00119 /// -bkgd calculate the background density. Additional options include 00120 /// -bkgd:csab use the old ClusterSequenceAreaBase methods 00121 /// -bkgd:jetmedian use the new JetMedianBackgroundEstimator class 00122 /// -bkgd:fj2 force jetmedian to calculate sigma as in fj2 00123 /// -bkgd:gridmedian use GridMedianBackgroundEstimator with grid up to ghost_maxrap-ktR and grid spacing of 2ktR 00124 /// 00125 /// Algorithms 00126 /// ---------- 00127 /// -all-algs runs all algorithms 00128 /// 00129 /// -kt switch to the longitudinally invariant kt algorithm 00130 /// Note: this is the default one. 00131 /// 00132 /// -cam switch to the inclusive Cambridge/Aachen algorithm -- 00133 /// note that the option -excld dcut provides a clustering 00134 /// up to the dcut which is the minimum squared 00135 /// distance between any pair of jets. 00136 /// 00137 /// -antikt switch to the anti-kt clustering algorithm 00138 /// 00139 /// -genkt switch to the genkt algorithm 00140 /// you can provide the parameter of the alg as an argument to 00141 /// -genkt (1 by default) 00142 /// 00143 /// -eekt switch to the e+e- kt algorithm 00144 /// 00145 /// -eegenkt switch to the genkt algorithm 00146 /// you can provide the parameter of the alg as an argument to 00147 /// -ee_genkt (1 by default) 00148 /// 00149 /// plugins (don't delete this line) 00150 /// 00151 /// -pxcone switch to the PxCone jet algorithm 00152 /// 00153 /// -siscone switch to the SISCone jet algorithm (seedless cones) 00154 /// -sisconespheri switch to the Spherical SISCone jet algorithm (seedless cones) 00155 /// 00156 /// -midpoint switch to CDF's midpoint code 00157 /// -jetclu switch to CDF's jetclu code 00158 /// 00159 /// -d0runipre96cone switch to the D0RunIpre96Cone plugin 00160 /// -d0runicone switch to the D0RunICone plugin 00161 /// 00162 /// -d0runiicone switch to D0's run II midpoint cone 00163 /// 00164 /// -trackjet switch to the TrackJet plugin 00165 /// 00166 /// -atlascone switch to the ATLASCone plugin 00167 /// 00168 /// -eecambridge switch to the EECambridge plugin 00169 /// 00170 /// -jade switch to the Jade plugin 00171 /// 00172 /// -cmsiterativecone switch to the CMSIterativeCone plugin 00173 /// 00174 /// -gridjet switch to the GridJet plugin 00175 /// 00176 /// end of plugins (don't delete this line) 00177 /// 00178 /// 00179 /// Options for running algs 00180 /// ------------------------ 00181 /// 00182 /// -r sets the radius of the jet algorithm (default = 1.0) 00183 /// 00184 /// -overlap | -f sets the overlap fraction in cone algs with split-merge 00185 /// 00186 /// -seed sets the seed threshold 00187 /// 00188 /// -strategy N indicate stratgey from the enum fastjet::Strategy (see 00189 /// fastjet/JetDefinition.hh). 00190 /// 00191 00192 00193 #include "fastjet/ClusterSequenceArea.hh" 00194 #include "fastjet/tools/JetMedianBackgroundEstimator.hh" 00195 #include "fastjet/tools/GridMedianBackgroundEstimator.hh" 00196 #include "fastjet/Selector.hh" 00197 #include<iostream> 00198 #include<sstream> 00199 #include<fstream> 00200 #include<valarray> 00201 #include<vector> 00202 #include <cstdlib> 00203 //#include<cstddef> // for size_t 00204 #include "CmdLine.hh" 00205 00206 // get info on how fastjet was configured 00207 #include "fastjet/config.h" 00208 00209 // include the installed plugins (don't delete this line) 00210 #ifdef FASTJET_ENABLE_PLUGIN_SISCONE 00211 #include "fastjet/SISConePlugin.hh" 00212 #include "fastjet/SISConeSphericalPlugin.hh" 00213 #endif 00214 #ifdef FASTJET_ENABLE_PLUGIN_CDFCONES 00215 #include "fastjet/CDFMidPointPlugin.hh" 00216 #include "fastjet/CDFJetCluPlugin.hh" 00217 #endif 00218 #ifdef FASTJET_ENABLE_PLUGIN_PXCONE 00219 #include "fastjet/PxConePlugin.hh" 00220 #endif 00221 #ifdef FASTJET_ENABLE_PLUGIN_D0RUNIICONE 00222 #include "fastjet/D0RunIIConePlugin.hh" 00223 #endif 00224 #ifdef FASTJET_ENABLE_PLUGIN_TRACKJET 00225 #include "fastjet/TrackJetPlugin.hh" 00226 #endif 00227 #ifdef FASTJET_ENABLE_PLUGIN_ATLASCONE 00228 #include "fastjet/ATLASConePlugin.hh" 00229 #endif 00230 #ifdef FASTJET_ENABLE_PLUGIN_EECAMBRIDGE 00231 #include "fastjet/EECambridgePlugin.hh" 00232 #endif 00233 #ifdef FASTJET_ENABLE_PLUGIN_JADE 00234 #include "fastjet/JadePlugin.hh" 00235 #endif 00236 #ifdef FASTJET_ENABLE_PLUGIN_CMSITERATIVECONE 00237 #include "fastjet/CMSIterativeConePlugin.hh" 00238 #endif 00239 #ifdef FASTJET_ENABLE_PLUGIN_D0RUNICONE 00240 #include "fastjet/D0RunIpre96ConePlugin.hh" 00241 #include "fastjet/D0RunIConePlugin.hh" 00242 #endif 00243 #ifdef FASTJET_ENABLE_PLUGIN_GRIDJET 00244 #include "fastjet/GridJetPlugin.hh" 00245 #endif 00246 // end of installed plugins inclusion (don't delete this line) 00247 00248 using namespace std; 00249 00250 // to avoid excessive typing, define an abbreviation for the 00251 // fastjet namespace 00252 namespace fj = fastjet; 00253 00254 inline double pow2(const double x) {return x*x;} 00255 00256 // pretty print the jets and their subjets 00257 void print_jets_and_sub (const vector<fj::PseudoJet> & jets, double dcut); 00258 00259 string rootfile; 00260 CmdLine * cmdline_p; 00261 00262 bool do_areas; 00263 00264 /// sort and pretty print jets, with exact behaviour depending on 00265 /// whether ee_print is true or not 00266 bool ee_print = false; 00267 void print_jets(const vector<fj::PseudoJet> & jets, bool show_const = false); 00268 00269 bool found_unavailable = false; 00270 void is_unavailable(const string & algname) { 00271 cerr << algname << " requested, but not available for this compilation" << endl; 00272 found_unavailable = true; 00273 //exit(0); 00274 } 00275 00276 00277 /// a program to test and time a range of algorithms as implemented or 00278 /// wrapped in fastjet 00279 int main (int argc, char ** argv) { 00280 00281 fj::ClusterSequence::print_banner(); 00282 00283 CmdLine cmdline(argc,argv); 00284 cmdline_p = &cmdline; 00285 // allow the use to specify the fj::Strategy either through the 00286 // -clever or the -strategy options (both will take numerical 00287 // values); the latter will override the former. 00288 fj::Strategy strategy = fj::Strategy(cmdline.int_val("-strategy", 00289 cmdline.int_val("-clever", fj::Best))); 00290 int repeat = cmdline.int_val("-repeat",1); 00291 int combine = cmdline.int_val("-combine",1); 00292 bool write = cmdline.present("-write"); 00293 bool unique_write = cmdline.present("-unique_write"); 00294 bool hydjet = cmdline.present("-hydjet"); 00295 double ktR = cmdline.double_val("-r",1.0); 00296 ktR = cmdline.double_val("-R",ktR); // allow -r and -R 00297 double inclkt = cmdline.double_val("-incl",-1.0); 00298 double repeatinclkt = cmdline.double_val("-repeat-incl",-1.0); 00299 int excln = cmdline.int_val ("-excln",-1); 00300 double excld = cmdline.double_val("-excld",-1.0); 00301 double excly = cmdline.double_val("-excly",-1.0); 00302 ee_print = cmdline.present("-ee-print"); 00303 bool get_all_dij = cmdline.present("-get-all-dij"); 00304 bool get_all_yij = cmdline.present("-get-all-yij"); 00305 double subdcut = cmdline.double_val("-subdcut",-1.0); 00306 double etamax = cmdline.double_val("-etamax",1.0e305); 00307 bool show_constituents = cmdline.present("-const"); 00308 bool massless = cmdline.present("-massless"); 00309 int nev = cmdline.int_val("-nev",1); 00310 bool add_dense_coverage = cmdline.present("-dense"); 00311 double ghost_maxrap = cmdline.value("-ghost-maxrap",5.0); 00312 bool all_algs = cmdline.present("-all-algs"); 00313 00314 fj::Selector particles_sel = (cmdline.present("-nhardest")) 00315 ? fj::SelectorNHardest(cmdline.value<unsigned int>("-nhardest")) 00316 : fj::SelectorIdentity(); 00317 00318 do_areas = cmdline.present("-area"); 00319 fj::AreaDefinition area_def; 00320 if (do_areas) { 00321 assert(!write); // it's incompatible 00322 fj::GhostedAreaSpec ghost_spec(ghost_maxrap, 00323 cmdline.value("-area:repeat", 1), 00324 cmdline.value("-ghost-area", 0.01)); 00325 if (cmdline.present("-area:fj2")) ghost_spec.set_fj2_placement(true); 00326 if (cmdline.present("-area:explicit")) { 00327 area_def = fj::AreaDefinition(fj::active_area_explicit_ghosts, ghost_spec); 00328 } else if (cmdline.present("-area:passive")) { 00329 area_def = fj::AreaDefinition(fj::passive_area, ghost_spec); 00330 } else if (cmdline.present("-area:voronoi")) { 00331 double Rfact = cmdline.value<double>("-area:voronoi"); 00332 area_def = fj::AreaDefinition(fj::voronoi_area, 00333 fj::VoronoiAreaSpec(Rfact)); 00334 } else { 00335 cmdline.present("-area:active"); // allow, but do not require, arg 00336 area_def = fj::AreaDefinition(fj::active_area, ghost_spec); 00337 } 00338 } 00339 bool do_bkgd = cmdline.present("-bkgd"); // background estimation 00340 bool do_bkgd_csab = false, do_bkgd_jetmedian = false, do_bkgd_fj2 = false; 00341 bool do_bkgd_gridmedian = false; 00342 fj::Selector bkgd_range; 00343 if (do_bkgd) { 00344 bkgd_range = fj::SelectorAbsRapMax(ghost_maxrap - ktR); 00345 if (cmdline.present("-bkgd:csab")) {do_bkgd_csab = true;} 00346 else if (cmdline.present("-bkgd:jetmedian")) {do_bkgd_jetmedian = true; 00347 do_bkgd_fj2 = cmdline.present("-bkgd:fj2"); 00348 } else if (cmdline.present("-bkgd:gridmedian")) {do_bkgd_gridmedian = true; 00349 } else { 00350 throw fj::Error("with the -bkgd option, some particular background must be specified (csab or jetmedian)"); 00351 } 00352 assert(do_areas || do_bkgd_gridmedian); 00353 } 00354 00355 bool show_cones = cmdline.present("-cones"); // only works for siscone 00356 00357 // for cone algorithms 00358 // allow -f and -overlap 00359 double overlap_threshold = cmdline.double_val("-overlap",0.5); 00360 overlap_threshold = cmdline.double_val("-f",overlap_threshold); 00361 double seed_threshold = cmdline.double_val("-seed",1.0); 00362 00363 // for ee algorithms, allow to specify ycut 00364 double ycut = cmdline.double_val("-ycut",0.08); 00365 00366 // for printing jets to a file for reading by root 00367 rootfile = cmdline.value<string>("-root",""); 00368 00369 // out default scheme is the E_scheme 00370 fj::RecombinationScheme scheme = fj::E_scheme; 00371 00372 // The following option causes the Cambridge algo to be used. 00373 // Note that currently the only output that works sensibly here is 00374 // "-incl 0" 00375 vector<fj::JetDefinition> jet_defs; 00376 if (all_algs || cmdline.present("-cam") || cmdline.present("-CA")) { 00377 jet_defs.push_back( fj::JetDefinition(fj::cambridge_algorithm, ktR, scheme, strategy)); 00378 } 00379 if (all_algs || cmdline.present("-antikt")) { 00380 jet_defs.push_back( fj::JetDefinition(fj::antikt_algorithm, ktR, scheme, strategy)); 00381 } 00382 if (all_algs || cmdline.present("-genkt")) { 00383 double p; 00384 if (cmdline.present("-genkt")) p = cmdline.value<double>("-genkt"); 00385 else p = -0.5; 00386 jet_defs.push_back( fj::JetDefinition(fj::genkt_algorithm, ktR, p, scheme, strategy)); 00387 } 00388 if (all_algs || cmdline.present("-eekt")) { 00389 jet_defs.push_back( fj::JetDefinition(fj::ee_kt_algorithm)); 00390 } 00391 if (all_algs || cmdline.present("-eegenkt")) { 00392 double p; 00393 if (cmdline.present("-eegenkt")) p = cmdline.value<double>("-eegenkt"); 00394 else p = -0.5; 00395 jet_defs.push_back( fj::JetDefinition(fj::ee_genkt_algorithm, ktR, p, scheme, strategy)); 00396 00397 // checking if one asks to run a plugin (don't delete this line) 00398 } 00399 if (all_algs || cmdline.present("-midpoint")) { 00400 #ifdef FASTJET_ENABLE_PLUGIN_CDFCONES 00401 typedef fj::CDFMidPointPlugin MPPlug; // for brevity 00402 double cone_area_fraction = 1.0; 00403 int max_pair_size = 2; 00404 int max_iterations = 100; 00405 MPPlug::SplitMergeScale sm_scale = MPPlug::SM_pt; 00406 if (cmdline.present("-sm-pttilde")) sm_scale = MPPlug::SM_pttilde; 00407 if (cmdline.present("-sm-pt")) sm_scale = MPPlug::SM_pt; // default 00408 if (cmdline.present("-sm-mt")) sm_scale = MPPlug::SM_mt; 00409 if (cmdline.present("-sm-Et")) sm_scale = MPPlug::SM_Et; 00410 jet_defs.push_back( fj::JetDefinition( new fj::CDFMidPointPlugin ( 00411 seed_threshold, ktR, 00412 cone_area_fraction, max_pair_size, 00413 max_iterations, overlap_threshold, 00414 sm_scale))); 00415 #else // FASTJET_ENABLE_PLUGIN_CDFCONES 00416 is_unavailable("midpoint"); 00417 #endif // FASTJET_ENABLE_PLUGIN_CDFCONES 00418 } 00419 if (all_algs || cmdline.present("-pxcone")) { 00420 #ifdef FASTJET_ENABLE_PLUGIN_PXCONE 00421 double min_jet_energy = 5.0; 00422 jet_defs.push_back( fj::JetDefinition( new fj::PxConePlugin ( 00423 ktR, min_jet_energy, 00424 overlap_threshold))); 00425 #else // FASTJET_ENABLE_PLUGIN_PXCONE 00426 is_unavailable("pxcone"); 00427 #endif // FASTJET_ENABLE_PLUGIN_PXCONE 00428 } 00429 if (all_algs || cmdline.present("-jetclu")) { 00430 #ifdef FASTJET_ENABLE_PLUGIN_CDFCONES 00431 jet_defs.push_back( fj::JetDefinition( new fj::CDFJetCluPlugin ( 00432 ktR, overlap_threshold, seed_threshold))); 00433 #else // FASTJET_ENABLE_PLUGIN_CDFCONES 00434 is_unavailable("pxcone"); 00435 #endif // FASTJET_ENABLE_PLUGIN_CDFCONES 00436 } 00437 if (all_algs || cmdline.present("-siscone") || cmdline.present("-sisconespheri")) { 00438 #ifdef FASTJET_ENABLE_PLUGIN_SISCONE 00439 typedef fj::SISConePlugin SISPlug; // for brevity 00440 int npass = cmdline.value("-npass",0); 00441 if (all_algs || cmdline.present("-siscone")) { 00442 double sisptmin = cmdline.value("-sisptmin",0.0); 00443 SISPlug * plugin = new SISPlug (ktR, overlap_threshold,npass,sisptmin); 00444 if (cmdline.present("-sm-pt")) plugin->set_split_merge_scale(SISPlug::SM_pt); 00445 if (cmdline.present("-sm-mt")) plugin->set_split_merge_scale(SISPlug::SM_mt); 00446 if (cmdline.present("-sm-Et")) plugin->set_split_merge_scale(SISPlug::SM_Et); 00447 if (cmdline.present("-sm-pttilde")) plugin->set_split_merge_scale(SISPlug::SM_pttilde); 00448 // cause it to use the jet-definition's own recombiner 00449 plugin->set_use_jet_def_recombiner(true); 00450 jet_defs.push_back( fj::JetDefinition(plugin)); 00451 } 00452 if (all_algs || cmdline.present("-sisconespheri")) { 00453 double sisEmin = cmdline.value("-sisEmin",0.0); 00454 fj::SISConeSphericalPlugin * plugin = 00455 new fj::SISConeSphericalPlugin(ktR, overlap_threshold,npass,sisEmin); 00456 if (cmdline.present("-ghost-sep")) { 00457 plugin->set_ghost_separation_scale(cmdline.value<double>("-ghost-sep")); 00458 } 00459 jet_defs.push_back( fj::JetDefinition(plugin)); 00460 } 00461 #else // FASTJET_ENABLE_PLUGIN_SISCONE 00462 is_unavailable("siscone"); 00463 #endif // FASTJET_ENABLE_PLUGIN_SISCONE 00464 } 00465 if (all_algs || cmdline.present("-d0runiicone")) { 00466 #ifdef FASTJET_ENABLE_PLUGIN_D0RUNIICONE 00467 double min_jet_Et = 6.0; // was 8 GeV in earlier work 00468 jet_defs.push_back( fj::JetDefinition(new fj::D0RunIIConePlugin(ktR,min_jet_Et))); 00469 #else // FASTJET_ENABLE_PLUGIN_D0RUNIICONE 00470 is_unavailable("D0RunIICone"); 00471 #endif // FASTJET_ENABLE_PLUGIN_D0RUNIICONE 00472 } 00473 if (all_algs || cmdline.present("-trackjet")) { 00474 #ifdef FASTJET_ENABLE_PLUGIN_TRACKJET 00475 jet_defs.push_back( fj::JetDefinition(new fj::TrackJetPlugin(ktR))); 00476 #else // FASTJET_ENABLE_PLUGIN_TRACKJET 00477 is_unavailable("TrackJet"); 00478 #endif // FASTJET_ENABLE_PLUGIN_TRACKJET 00479 } 00480 if (all_algs || cmdline.present("-atlascone")) { 00481 #ifdef FASTJET_ENABLE_PLUGIN_ATLASCONE 00482 jet_defs.push_back( fj::JetDefinition(new fj::ATLASConePlugin(ktR))); 00483 #else // FASTJET_ENABLE_PLUGIN_ATLASCONE 00484 is_unavailable("ATLASCone"); 00485 #endif // FASTJET_ENABLE_PLUGIN_ATLASCONE 00486 } 00487 if (all_algs || cmdline.present("-eecambridge")) { 00488 #ifdef FASTJET_ENABLE_PLUGIN_EECAMBRIDGE 00489 jet_defs.push_back( fj::JetDefinition(new fj::EECambridgePlugin(ycut))); 00490 #else // FASTJET_ENABLE_PLUGIN_EECAMBRIDGE 00491 is_unavailable("EECambridge"); 00492 #endif // FASTJET_ENABLE_PLUGIN_EECAMBRIDGE 00493 } 00494 if (all_algs || cmdline.present("-jade")) { 00495 #ifdef FASTJET_ENABLE_PLUGIN_JADE 00496 jet_defs.push_back( fj::JetDefinition(new fj::JadePlugin())); 00497 #else // FASTJET_ENABLE_PLUGIN_JADE 00498 is_unavailable("Jade"); 00499 #endif // FASTJET_ENABLE_PLUGIN_JADE 00500 } 00501 if (all_algs || cmdline.present("-cmsiterativecone")) { 00502 #ifdef FASTJET_ENABLE_PLUGIN_CMSITERATIVECONE 00503 jet_defs.push_back( fj::JetDefinition(new fj::CMSIterativeConePlugin(ktR,seed_threshold))); 00504 #else // FASTJET_ENABLE_PLUGIN_CMSITERATIVECONE 00505 is_unavailable("CMSIterativeCone"); 00506 #endif // FASTJET_ENABLE_PLUGIN_CMSITERATIVECONE 00507 } 00508 if (all_algs || cmdline.present("-d0runipre96cone")) { 00509 #ifdef FASTJET_ENABLE_PLUGIN_D0RUNICONE 00510 jet_defs.push_back( fj::JetDefinition(new fj::D0RunIpre96ConePlugin(ktR, seed_threshold, overlap_threshold))); 00511 #else // FASTJET_ENABLE_PLUGIN_D0RUNICONE 00512 is_unavailable("D0RunICone"); 00513 #endif // FASTJET_ENABLE_PLUGIN_D0RUNICONE 00514 } 00515 if (all_algs || cmdline.present("-d0runicone")) { 00516 #ifdef FASTJET_ENABLE_PLUGIN_D0RUNICONE 00517 jet_defs.push_back( fj::JetDefinition(new fj::D0RunIConePlugin(ktR, seed_threshold, overlap_threshold))); 00518 #else // FASTJET_ENABLE_PLUGIN_D0RUNICONE 00519 is_unavailable("D0RunICone"); 00520 #endif // FASTJET_ENABLE_PLUGIN_D0RUNICONE 00521 } 00522 if (all_algs || cmdline.present("-gridjet")) { 00523 #ifdef FASTJET_ENABLE_PLUGIN_GRIDJET 00524 // we want a grid_ymax of 5.0, but when using R=0.4 (i.e. grid 00525 // spacing of 0.8), this leads to 12.5 grid cells; depending on 00526 // whether this is 12.499999999999 or 12.5000000....1 this gets 00527 // converted either to 12 or 13, making the results sensitive to 00528 // rounding errors. 00529 // 00530 // Instead we therefore take 4.9999999999, which avoids this problem. 00531 double grid_ymax = 4.9999999999; 00532 jet_defs.push_back( fj::JetDefinition(new fj::GridJetPlugin(grid_ymax, ktR*2.0))); 00533 #else // FASTJET_ENABLE_PLUGIN_GRIDJET 00534 is_unavailable("GridJet"); 00535 #endif // FASTJET_ENABLE_PLUGIN_GRIDJET 00536 // end of checking if one asks to run a plugin (don't delete this line) 00537 } 00538 if (all_algs || 00539 cmdline.present("-kt") || 00540 (jet_defs.size() == 0 && !found_unavailable)) { 00541 jet_defs.push_back( fj::JetDefinition(fj::kt_algorithm, ktR, strategy)); 00542 } 00543 00544 string filename = cmdline.value<string>("-file", ""); 00545 00546 00547 if (!cmdline.all_options_used()) {cerr << 00548 "Error: some options were not recognized"<<endl; 00549 exit(-1);} 00550 00551 for (unsigned idef = 0; idef < jet_defs.size(); idef++) { 00552 fj::JetDefinition & jet_def = jet_defs[idef]; 00553 istream * istr; 00554 if (filename == "") istr = &cin; 00555 else istr = new ifstream(filename.c_str()); 00556 00557 for (int iev = 0; iev < nev; iev++) { 00558 vector<fj::PseudoJet> jets; 00559 vector<fj::PseudoJet> particles; 00560 string line; 00561 int ndone = 0; 00562 while (getline(*istr, line)) { 00563 //cout << line<<endl; 00564 istringstream linestream(line); 00565 if (line == "#END") { 00566 ndone += 1; 00567 if (ndone == combine) {break;} 00568 } 00569 if (line.substr(0,1) == "#") {continue;} 00570 valarray<double> fourvec(4); 00571 if (hydjet) { 00572 // special reading from hydjet.txt event record (though actually 00573 // this is supposed to be a standard pythia event record, so 00574 // being able to read from it is perhaps not so bad an idea...) 00575 int ii, istat,id,m1,m2,d1,d2; 00576 double mass; 00577 linestream >> ii>> istat >> id >> m1 >> m2 >> d1 >> d2 00578 >> fourvec[0] >> fourvec[1] >> fourvec[2] >> mass; 00579 // current file contains mass of particle as 4th entry 00580 if (istat == 1) { 00581 fourvec[3] = sqrt(+pow2(fourvec[0])+pow2(fourvec[1]) 00582 +pow2(fourvec[2])+pow2(mass)); 00583 } 00584 } else { 00585 if (massless) { 00586 linestream >> fourvec[0] >> fourvec[1] >> fourvec[2]; 00587 fourvec[3] = sqrt(pow2(fourvec[0])+pow2(fourvec[1])+pow2(fourvec[2]));} 00588 else { 00589 linestream >> fourvec[0] >> fourvec[1] >> fourvec[2] >> fourvec[3]; 00590 } 00591 } 00592 fj::PseudoJet psjet(fourvec); 00593 if (abs(psjet.rap() < etamax)) {particles.push_back(psjet);} 00594 } 00595 00596 // add a fake underlying event which is very soft, uniformly distributed 00597 // in eta,phi so as to allow one to reconstruct the area that is associated 00598 // with each jet. 00599 if (add_dense_coverage) { 00600 fj::GhostedAreaSpec ghosted_area_spec(ghost_maxrap); 00601 //fj::GhostedAreaSpec ghosted_area_spec(-2.0,4.0); // asymmetric range 00602 // for plots, reduce the scatter default of 1, to avoid "holes" 00603 // in the subsequent calorimeter view 00604 ghosted_area_spec.set_grid_scatter(0.5); 00605 ghosted_area_spec.add_ghosts(particles); 00606 //----- old code ------------------ 00607 // srand(2); 00608 // int nphi = 60; 00609 // int neta = 100; 00610 // double kt = 1e-1; 00611 // for (int iphi = 0; iphi<nphi; iphi++) { 00612 // for (int ieta = -neta; ieta<neta+1; ieta++) { 00613 // double phi = (iphi+0.5) * (fj::twopi/nphi) + rand()*0.001/RAND_MAX; 00614 // double eta = ieta * (10.0/neta) + rand()*0.001/RAND_MAX; 00615 // kt = 1e-20*(1+rand()*0.1/RAND_MAX); 00616 // double pminus = kt*exp(-eta); 00617 // double pplus = kt*exp(+eta); 00618 // double px = kt*sin(phi); 00619 // double py = kt*cos(phi); 00620 // //cout << kt<<" "<<eta<<" "<<phi<<"\n"; 00621 // fj::PseudoJet mom(px,py,0.5*(pplus-pminus),0.5*(pplus+pminus)); 00622 // particles.push_back(mom); 00623 // } 00624 // } 00625 } 00626 00627 // select the particles that pass the selection cut 00628 particles = particles_sel(particles); 00629 00630 for (int irepeat = 0; irepeat < repeat ; irepeat++) { 00631 int nparticles = particles.size(); 00632 try { 00633 auto_ptr<fj::ClusterSequence> clust_seq; 00634 if (do_areas) { 00635 clust_seq.reset(new fj::ClusterSequenceArea(particles,jet_def,area_def)); 00636 } else { 00637 clust_seq.reset(new fj::ClusterSequence(particles,jet_def,write)); 00638 } 00639 00640 // repetitive output 00641 if (repeatinclkt >= 0.0) { 00642 vector<fj::PseudoJet> jets_local = sorted_by_pt(clust_seq->inclusive_jets(repeatinclkt)); 00643 } 00644 00645 if (irepeat != 0) {continue;} 00646 cout << "iev "<<iev<< ": number of particles = "<< nparticles << endl; 00647 cout << "strategy used = "<< clust_seq->strategy_string()<< endl; 00648 if (iev == 0) cout << "Jet Definition: " << jet_def.description() << " (" << fj::fastjet_version_string() << ")" << endl; 00649 if (do_areas && iev == 0) cout << "Area definition: " << area_def.description() << endl; 00650 00651 // now provide some nice output... 00652 if (inclkt >= 0.0) { 00653 vector<fj::PseudoJet> jets_local = sorted_by_pt(clust_seq->inclusive_jets(inclkt)); 00654 print_jets(jets_local, show_constituents); 00655 00656 } 00657 00658 if (excln > 0) { 00659 cout << "Printing "<<excln<<" exclusive jets\n"; 00660 print_jets(clust_seq->exclusive_jets(excln), show_constituents); 00661 } 00662 00663 if (excld > 0.0) { 00664 cout << "Printing exclusive jets for d = "<<excld<<"\n"; 00665 print_jets(clust_seq->exclusive_jets(excld), show_constituents); 00666 } 00667 00668 if (excly > 0.0) { 00669 cout << "Printing exclusive jets for ycut = "<<excly<<"\n"; 00670 print_jets(clust_seq->exclusive_jets_ycut(excly), show_constituents); 00671 } 00672 00673 if (get_all_dij) { 00674 for (int i = nparticles-1; i >= 0; i--) { 00675 printf("d for n = %4d -> %4d is %14.5e\n", i+1, i, clust_seq->exclusive_dmerge(i)); 00676 } 00677 } 00678 if (get_all_yij) { 00679 for (int i = nparticles-1; i >= 0; i--) { 00680 printf("y for n = %4d -> %4d is %14.5e\n", i+1, i, clust_seq->exclusive_ymerge(i)); 00681 } 00682 } 00683 00684 // have the option of printing out the subjets (at scale dcut) of 00685 // each inclusive jet 00686 if (subdcut >= 0.0) { 00687 print_jets_and_sub(clust_seq->inclusive_jets(), subdcut); 00688 } 00689 00690 // useful for testing that recombination sequences are unique 00691 if (unique_write) { 00692 vector<int> unique_history = clust_seq->unique_history_order(); 00693 // construct the inverse of the above mapping 00694 vector<int> inv_unique_history(clust_seq->history().size()); 00695 for (unsigned int i = 0; i < unique_history.size(); i++) { 00696 inv_unique_history[unique_history[i]] = i;} 00697 00698 for (unsigned int i = 0; i < unique_history.size(); i++) { 00699 fj::ClusterSequence::history_element el = 00700 clust_seq->history()[unique_history[i]]; 00701 int uhp1 = el.parent1>=0 ? inv_unique_history[el.parent1] : el.parent1; 00702 int uhp2 = el.parent2>=0 ? inv_unique_history[el.parent2] : el.parent2; 00703 printf("%7d u %15.8e %7d u %7d u\n",i,el.dij,uhp1, uhp2); 00704 } 00705 } 00706 00707 00708 #ifdef FASTJET_ENABLE_PLUGIN_SISCONE 00709 // provide some complementary information for SISCone 00710 if (show_cones) { 00711 const fj::SISConeExtras * extras = 00712 dynamic_cast<const fj::SISConeExtras *>(clust_seq->extras()); 00713 cout << "most ambiguous split (difference in squared dist) = " 00714 << extras->most_ambiguous_split() << endl; 00715 vector<fastjet::PseudoJet> stable_cones(extras->stable_cones()); 00716 stable_cones = sorted_by_rapidity(stable_cones); 00717 for (unsigned int i = 0; i < stable_cones.size(); i++) { 00718 //if (stable_cones[i].phi() < 5.0 && stable_cones[i].phi() > 4.0) { 00719 printf("%5u %15.8f %15.8f %15.8f\n", 00720 i,stable_cones[i].rap(),stable_cones[i].phi(), 00721 stable_cones[i].perp() ); 00722 //} 00723 } 00724 00725 // also show passes for jets 00726 vector<fj::PseudoJet> sisjets = clust_seq->inclusive_jets(); 00727 printf("\n%15s %15s %15s %12s %8s %8s\n","rap","phi","pt","user-index","pass","nconst"); 00728 for (unsigned i = 0; i < sisjets.size(); i++) { 00729 printf("%15.8f %15.8f %15.8f %12d %8d %8u\n", 00730 sisjets[i].rap(), sisjets[i].phi(), sisjets[i].perp(), 00731 sisjets[i].user_index(), extras->pass(sisjets[i]), 00732 (unsigned int) clust_seq->constituents(sisjets[i]).size() 00733 ); 00734 00735 } 00736 } 00737 #endif // FASTJET_ENABLE_PLUGIN_SISCONE 00738 00739 if (do_bkgd) { 00740 double rho, sigma, mean_area, empty_area, n_empty_jets; 00741 fj::ClusterSequenceAreaBase * csab = 00742 dynamic_cast<fj::ClusterSequenceAreaBase *>(clust_seq.get()); 00743 if (do_bkgd_csab) { 00744 csab->get_median_rho_and_sigma(bkgd_range, true, rho, sigma, mean_area); 00745 empty_area = csab->empty_area(bkgd_range); 00746 n_empty_jets = csab->n_empty_jets(bkgd_range); 00747 } else if (do_bkgd_jetmedian) { 00748 fj::JetMedianBackgroundEstimator bge(bkgd_range); 00749 bge.set_provide_fj2_sigma(do_bkgd_fj2); 00750 bge.set_cluster_sequence(*csab); 00751 rho = bge.rho(); 00752 sigma = bge.sigma(); 00753 mean_area = bge.mean_area(); 00754 empty_area = bge.empty_area(); 00755 n_empty_jets = bge.n_empty_jets(); 00756 } else { 00757 assert(do_bkgd_gridmedian); 00758 double rapmin, rapmax; 00759 bkgd_range.get_rapidity_extent(rapmin, rapmax); 00760 fj::GridMedianBackgroundEstimator bge(rapmax, 2*ktR); 00761 bge.set_particles(particles); 00762 rho = bge.rho(); 00763 sigma = bge.sigma(); 00764 mean_area = bge.mean_area(); 00765 empty_area = 0; 00766 n_empty_jets = 0; 00767 } 00768 cout << " rho = " << rho 00769 << ", sigma = " << sigma 00770 << ", mean_area = " << mean_area 00771 << ", empty_area = " << empty_area 00772 << ", n_empty_jets = " << n_empty_jets 00773 << endl; 00774 } 00775 } // try 00776 catch (fastjet::Error fjerr) { 00777 cout << "Caught fastjet error, exiting gracefully" << endl; 00778 exit(0); 00779 } 00780 00781 } // irepeat 00782 } // iev 00783 // if we've instantiated a plugin, delete it 00784 if (jet_def.strategy()==fj::plugin_strategy){ 00785 delete jet_def.plugin(); 00786 } 00787 // close any file that we've opened 00788 if (istr != &cin) delete istr; 00789 } // jet_defs 00790 00791 } 00792 00793 00794 00795 00796 //------ HELPER ROUTINES ----------------------------------------------- 00797 /// print a single jet 00798 void print_jet (const fj::PseudoJet & jet) { 00799 unsigned int n_constituents = jet.constituents().size(); 00800 printf("%15.8f %15.8f %15.8f %8u\n", 00801 jet.rap(), jet.phi(), jet.perp(), n_constituents); 00802 } 00803 00804 00805 //---------------------------------------------------------------------- 00806 void print_jets(const vector<fj::PseudoJet> & jets_in, bool show_constituents) { 00807 vector<fj::PseudoJet> jets; 00808 if (ee_print) { 00809 jets = sorted_by_E(jets_in); 00810 for (unsigned int j = 0; j < jets.size(); j++) { 00811 printf("%5u %15.8f %15.8f %15.8f %15.8f\n", 00812 j,jets[j].px(),jets[j].py(),jets[j].pz(),jets[j].E()); 00813 if (show_constituents) { 00814 vector<fj::PseudoJet> const_jets = jets[j].constituents(); 00815 for (unsigned int k = 0; k < const_jets.size(); k++) { 00816 printf(" jet%03u %15.8f %15.8f %15.8f %15.8f\n",j,const_jets[k].px(), 00817 const_jets[k].py(),const_jets[k].pz(),const_jets[k].E()); 00818 } 00819 cout << "\n\n"; 00820 } 00821 00822 } 00823 } else { 00824 jets = sorted_by_pt(jets_in); 00825 for (unsigned int j = 0; j < jets.size(); j++) { 00826 printf("%5u %15.8f %15.8f %15.8f", 00827 j,jets[j].rap(),jets[j].phi(),jets[j].perp()); 00828 // also print out the scalar area and the perp component of the 00829 // 4-vector (just enough to check a reasonable 4-vector?) 00830 if (do_areas) printf(" %15.8f %15.8f", jets[j].area(), 00831 jets[j].area_4vector().perp()); 00832 cout << "\n"; 00833 00834 if (show_constituents) { 00835 vector<fj::PseudoJet> const_jets = jets[j].constituents(); 00836 for (unsigned int k = 0; k < const_jets.size(); k++) { 00837 printf(" jet%03u %15.8f %15.8f %15.8f %5d\n",j,const_jets[k].rap(), 00838 const_jets[k].phi(),sqrt(const_jets[k].kt2()), const_jets[k].cluster_hist_index()); 00839 } 00840 cout << "\n\n"; 00841 } 00842 } 00843 } 00844 00845 if (rootfile != "") { 00846 ofstream ostr(rootfile.c_str()); 00847 ostr << "# " << cmdline_p->command_line() << endl; 00848 ostr << "# output for root" << endl; 00849 assert(jets.size() > 0); 00850 jets[0].validated_cs()->print_jets_for_root(jets,ostr); 00851 } 00852 00853 } 00854 00855 00856 //----- SUBJETS -------------------------------------------------------- 00857 /// a function that pretty prints a list of jets and the subjets for each 00858 /// one 00859 void print_jets_and_sub (const vector<fj::PseudoJet> & jets, double dcut) { 00860 00861 // sort jets into increasing pt 00862 vector<fj::PseudoJet> sorted_jets = sorted_by_pt(jets); 00863 00864 // label the columns 00865 printf("Printing jets and their subjets with subdcut = %10.5f\n",dcut); 00866 printf("%5s %15s %15s %15s %15s\n","jet #", "rapidity", 00867 "phi", "pt", "n constituents"); 00868 00869 // have various kinds of subjet finding, to test consistency among them 00870 enum SubType {internal, newclust_dcut, newclust_R}; 00871 SubType subtype = internal; 00872 //SubType subtype = newclust_dcut; 00873 //SubType subtype = newclust_R; 00874 00875 // print out the details for each jet 00876 //for (unsigned int i = 0; i < sorted_jets.size(); i++) { 00877 for (vector<fj::PseudoJet>::const_iterator jet = sorted_jets.begin(); 00878 jet != sorted_jets.end(); jet++) { 00879 const fj::JetDefinition & jet_def = jet->validated_cs()->jet_def(); 00880 00881 // if jet pt^2 < dcut with kt alg, then some methods of 00882 // getting subjets will return nothing -- so skip the jet 00883 if (jet_def.jet_algorithm() == fj::kt_algorithm 00884 && jet->perp2() < dcut) continue; 00885 00886 00887 printf("%5u ",(unsigned int) (jet - sorted_jets.begin())); 00888 print_jet(*jet); 00889 vector<fj::PseudoJet> subjets; 00890 fj::ClusterSequence * cspoint; 00891 if (subtype == internal) { 00892 cspoint = 0; 00893 subjets = jet->exclusive_subjets(dcut); 00894 double ddnp1 = jet->exclusive_subdmerge_max(subjets.size()); 00895 double ddn = jet->exclusive_subdmerge_max(subjets.size()-1); 00896 cout << " for " << ddnp1 << " < d < " << ddn << " one has " << endl; 00897 } else if (subtype == newclust_dcut) { 00898 cspoint = new fj::ClusterSequence(jet->constituents(), jet_def); 00899 subjets = cspoint->exclusive_jets(dcut); 00900 } else if (subtype == newclust_R) { 00901 assert(jet_def.jet_algorithm() == fj::cambridge_algorithm); 00902 fj::JetDefinition subjd(jet_def.jet_algorithm(), jet_def.R()*sqrt(dcut)); 00903 cspoint = new fj::ClusterSequence(jet->constituents(), subjd); 00904 subjets = cspoint->inclusive_jets(); 00905 } else { 00906 cerr << "unrecognized subtype for subjet finding" << endl; 00907 exit(-1); 00908 } 00909 00910 subjets = sorted_by_pt(subjets); 00911 for (unsigned int j = 0; j < subjets.size(); j++) { 00912 printf(" -sub-%02u ",j); 00913 print_jet(subjets[j]); 00914 } 00915 00916 if (cspoint != 0) delete cspoint; 00917 00918 //fj::ClusterSequence subseq(clust_seq->constituents(sorted_jets[i]), 00919 // fj::JetDefinition(fj::cambridge_algorithm, 0.4)); 00920 //vector<fj::PseudoJet> subjets = sorted_by_pt(subseq.inclusive_jets()); 00921 //for (unsigned int j = 0; j < subjets.size(); j++) { 00922 // printf(" -sub-%02u ",j); 00923 // print_jet(subseq, subjets[j]); 00924 //} 00925 } 00926 00927 } 00928