Index: trunk/ChangeLog =================================================================== --- trunk/ChangeLog (revision 417) +++ trunk/ChangeLog (revision 418) @@ -1,1661 +1,1661 @@ 2018-09-26 Gregory Soyez * NEWS: - fixed typo in corresponding FJ release number + fixed typos (FJ release number, ...) * configure.ac: * Doxyfile: * doc/html/*.html: changed version to 3.0.4 * NEWS: prepared for the release of SISCone 3.0.4 * siscone/spherical/Makefile.am: added libsiscone as a dependence of libsiscone_spherical 2018-09-19 Gregory Soyez * BUGS: updated email addresses (mostly testing the new HEPforge system) 2016-08-03 Gregory Soyez * configure.ac: * Doxyfile: * doc/html/*.html: changed version to 3.0.4-devel 2016-08-03 Gregory Soyez Release of SISCone 3.0.3 * doc/html/index.html.html: * doc/html/download.html: updated documentation with 3.0.3 release info * NEWS: prepared release notes for SISCone 3.0.3 * configure.ac: * Doxyfile: * doc/html/*.html: changed version to 3.0.3 * setversion.sh: updated script so that the version is properly set in configure.ac, Doxyfile and the doc 2016-05-23 Gregory Soyez * examples/Makefile.am: replaced top_builddir by .. [consistency with the same trick already used in the spherical source code * siscone/Makefile.am: * siscone/spherical/split_merge.h: same sort of fix as in the "spherical" case to make sure that the config.h file is correctly found in a VPATH build 2016-05-22 Gregory Soyez * examples/Makefile.am: added the top_builddir to the list of includes so that siscone/config.h is found on a vpath build * siscone/spherical/split_merge.h: included instead of "../config.h". This makes life eassier for a vpath build 2016-05-19 Gregory Soyez * siscone/siscone.cpp: * siscone/spherical/siscone.cpp: remove unneeded commented out code 2016-03-29 Gregory Soyez * siscone/split_merge.h: * siscone/spherical/split_merge.h: used SISCONE_USES_UNIQUE_PTR_AS_AUTO_PTR from config.h * configure.ac: put (SISCONE_)USES_UNIQUE_PTR_AS_AUTO_PTR in config.h * siscone/siscone.{h,cpp}: * siscone/spherical/siscone.{h,cpp}: * siscone/defines.h: PACKAGE_NAME -> SISCONE_PACKAGE_NAME VERSION -> SISCONE_VERSION * siscone/Makefile.am: included config.h in the list of distributed headers. * configure.ac: * Makefile.am: * m4/ax_config_header_h.m4: *** ADDED *** prefixed the entries in config.h by SISCONE_ to avoid conflicts with other packages if we want to include it in a header file. 2016-03-16 Gregory Soyez * configure.ac: * Doxyfile: * siscone/siscone.cpp: * siscone/spherical/siscone.cpp: bumped version number to 3.0.3-devel 2016-03-16 Gregory Soyez Release of SISCone 3.0.2 * NEWS: tweaked as suggested by Gavin * doc/html/usage.html: * doc/html/index.html: backported a change done on the Hepforge pages * doc/html/algorithm.html: * doc/html/index.html: * doc/html/sm_issue.html: * doc/html/download.html: * doc/html/perfs.html: * doc/html/usage.html: set version number to 3.0.2; updated a few links and mention the new release * Doxyfile: * siscone/siscone.cpp: * siscone/spherical/siscone.cpp: * configure.ac: set version number to 3.0.2 * NEWS: drafted for v3.0.2 2016-03-10 Gregory Soyez * siscone/split_merge.h: * siscone/spherical/split_merge.h: switched the auto_ptr into unique_ptr when SISCONE_USES_UNIQUE_PTR_AS_AUTO_PTR is defined * configure.ac: fine-tuned the configure test for auto-ptr deprecation [for god knows what reason, -Werror does not turn -Wdeprecated-declarations into errors for gcc-5.2.1... so I replaced it with -Werror=deprecated-declarations which does] * configure.ac: added a series of tests to check if the compiler considers auto_ptr as deprecated and, if yes, supports unique_ptr 2016-03-03 Gregory Soyez * siscone/spherical/siscone.cpp: * siscone/siscone.cpp: restored the original _banner_ostr stream format flags after printing out the banner * siscone/spherical/split_merge.cpp: * siscone/split_merge.cpp: removed unnecessary (dead) code at the end of get_sm_var2() * siscone/spherical/split_merge.h: * siscone/spherical/split_merge.cpp: * siscone/split_merge.h: * siscone/split_merge.cpp: initialised pass to CJET_INEXISTENT_PASS by default * siscone/vicinity.cpp: initialised ve_list before calling set_particle_list 2016-02-29 Gregory Soyez * doc/html/download.html: updated link to html browsing og the svn repo * doc/html/usage.html: updated a couple of links to the FJ doxygen pages * configure.ac: * siscone/siscone.cpp: * siscone/spherical/siscone.cpp: * Doxyfile: switched version number over to 3.0.2-devel 2016-02-29 Gregory Soyez Release of SISCone 3.0.1 * NEWS: * CHECKLIST: * Doxyfile: * configure.ac: * doc/html/*.html: * siscone/siscone.cpp: * siscone/spherical/siscone.cpp: prepared for the release of SISCone 3.0.1 2016-02-24 Gregory Soyez * siscone/spherical/geom_2d.h: get_theta_cell(...): fixed rounding issue for theta==pi [Bug reported by Andrii Verbytskyi, see 2016-02-SphericalSISCone-throws in the FastJet issue tracker] * siscone/spherical/geom_2d.cpp: add_particle(...): made sure the full phi range is included for theta=0 or theta=pi * siscone/spherical/geom_2d.h: fixed typo in comment: * siscone/spherical/split_merge.cpp: * siscone/split_merge.cpp: fixed bad variale in debugging outpout and added debugging info 2014-09-10 Gregory Soyez * Doxyfile: * configure.ac: * siscone/siscone.cpp: * siscone/spherical/siscone.cpp: set version number to 3.0.1-devel 2014-09-09 Gregory Soyez * SISCone 3.0.0 * doc/html/usage.html: * doc/html/perfs.html: added a brief discussion about the algogithm complexity. 2014-09-09 Gavin Salam * NEWS: * doc/html/index.html: * doc/html/usage.html: small phrasing changes 2014-09-09 Gregory Soyez * configure.ac: * NEWS: * siscone/siscone.cpp: * siscone/spherical/siscone.cpp: * Doxyfile: preparing for the release of SISCone 3.0.0 * doc/html/*.html: changed the version number to 3.0.0 included the release information updated Gavin's email address * doc/html/usage.html: added a description of SISCone with progressive removal * Doxyfile: Updated for more recent versions of doxygen [ran doxygen -u from doxygen 1.8.8] 2014-09-04 Gregory Soyez * siscone/split_merge.cpp: * siscone/spherical/split_merge.cpp: in progressive removal mode, set the 'pass' index associated to each jet to the index of the iteration at which it has been obtained * siscone/siscone.h: * siscone/siscone.cpp: * siscone/spherical/siscone.h: * siscone/spherical/siscone.cpp: put the duplicated code for initialisation in a spearate method * siscone/split_merge.cpp: fixed a bug introduced in a recent commit: jet_candidate.sm_var2 was not assigned prolperly for non-user-defined scales * siscone/spherical/split_merge.cpp: * siscone/spherical/split_merge.h: propagated recent modifications of SISCone to the spherical version: . reworked some comments (including the misplaced one about collinear-safety) . default for SM_var2_hardest_cut_off changed from -1 to -numeric_limits::max() [largely redundant] . added support for user-defined scale when run in "progressive-removal mode" * siscone/split_merge.h: . removed temporary comments at the top of the file . added a dummy virtual dtor to Csplit_merge::Cuser_scale_base 2014-09-04 Gavin SALAM + Gregory * siscone/split_merge.cpp: SM_var2_hardest_cutoff no longer applied to PR case. Modified sm_var2 in (PR) _user_scale case to now be the signed square of the scale variable (to properly handle negative values of the scale). default for SM_var2_hardest_cut_off changed from -1 to -numeric_limits::max(); (this change is largely redundant, given that SM_var2_hardest_cutoff is no longer used for PR, while the SM case only allows default scale choices, which are all positive definite). replaced with ; * siscone/split_merge.h: default Cuser_scale_base::is_larger(...) now uses cached values of scale in Cjet. small fixes to a number of comments, including misplaced warning about collinear unsafety. * siscone/siscone.h: small changes to comments to clarify situation of an unused variable in progressive removal 2014-09-04 Gregory Soyez * siscone/split_merge.cpp: * siscone/siscone/split_merge.h: added material to support user-defined scale choices in progressive-removal mode. One needs to overload the Csplit_merge::Cuser_scale_base class and pass a pointer to the split-merge using set_user_scale(). 2014-09-03 Gregory Soyez * siscone/spherical/siscone.h: * siscone/spherical/siscone.cpp: * siscone/spherical/split_merge.h: * siscone/spherical/split_merge.cpp: ported "siscone with progressive removal" to the spherical coordinates version * siscone/siscone.h: fixed typo in variable name * siscone/split_merge.cpp: imposed the SM_var2_hardest_cut_off in the progressive case too + made sure at least one candidate jet was found * siscone/siscone.h: * siscone/siscone.cpp: added compute_jets_progressive_removal(...) which implements a "progressive removal" version of SISCone. This successively computes stable cones and removes the hardest stable cone as a jet until no particles are left or no stable cones are found. Question: what do we do with 'protocones_list'? [for the time being, it's left empty] * siscone/split_merge.h: * siscone/split_merge.cpp: added 'add_hardest_protocones_to_jets' which computes the hardest of the stable cones passed as arguments, declares it as a jet and removes its content from the remaining list of particles. This should be used instead of add_protocones()+perform() if one wants a progressive-removal version of SISCone. 2013-04-09 Gregory Soyez * doc/html/index.html: fixed trivial typo (developper -> developer) * switched version number to 2.0.7-devel 2013-04-09 Gregory Soyez * Release of SISCone 2.0.6 * NEWS, doc/html/index.html set the release date to April 9th * Doxyfile Set version number to 2.0.6 2013-04-08 Gregory Soyez * doc/html/*.html: * configure.ac: switched version number to 2.0.6 * NEWS: preparing for SISCone 2.0.6 * setversion.sh: minor fix (used bash instead of sh) * CHECKLIST: *** ADDED *** helper checklist for the release process 2013-04-06 Gavin Salam * configure.ac: updated minimal required autotools version to 2.63 2013-02-05 Gavin Salam * autogen.sh: tried to be more tolerant of different libtool versions (some take --version, others -V). Still have problems on OS X 10.8 with macports , but autoreconf works fine. * configure.ac: replaced AM_CONFIG_HEADER with with AC_CONFIG_HEADERS, following error with autoconf 2.69 on OS X 10.8 with macports. 2013-02-04 Gregory Soyez * siscone/Makefile.am: do not install config.h * siscone/spherical/Makefile.am: fixed directory for headers installation for the spherical version of SISCone 2012-01-17 Gregory Soyez * NEWS: SISCone 2.0.5 * NEWS: * configure.ac: * Doxyfile: prepared for the release of SISCone 2.0.5 * siscone/spherical/Makefile.qm: used $(includedir) instead of $(prefix)/include 2012-01-13 Gregory Soyez * siscone/Makefile.am: used $(includedir) instead of $(prefix)/include 2011-11-25 Gregory Soyez * NEWS: SISCone 2.0.4 * NEWS: updated in preparation for the 2.0.4 release * doc/html/home.png: *** ADDED *** * doc/html/usage.html: * siscone/siscone_error.h: * doc/html/index.html: fixed typos; updated html links. * configure.ac: * Doxyfile: * doc/html/*.html: updated the version number to 2.0.4 and the release information * siscone/spherical/siscone.cpp: * siscone/spherical/siscone.h: * siscone/siscone.cpp: * siscone/siscone.h: allowed to redirect the banner to a different stream than cout 2011-11-16 Gregory Soyez * examples/test.cpp: cast a vector size (of type size_t) onto unsigned int to avoid a compiler warning (on either 32 or 64-bit machines) 2011-11-15 Gavin Salam * AUTHORS: updated my address. 2011-11-15 Gregory Soyez * siscone/protocones.cpp (is_inside, proceed_with_stability): * siscone/spherical/split_merge.cpp (init): * siscone/split_merge.cpp (init): * siscone/siscone_error.h: * siscone/area.cpp (compute*_areas): renamed or commented out a few local variables and method arguments to avoid shadowing class members (gcc -Wshadow) * examples/spherical.cpp: * examples/sample.cpp: removed unused argc, argv parameters * examples/spherical.cpp: * examples/sample.cpp: * examples/times.cpp: * examples/test.cpp: * examples/area.cpp: * examples/main.cpp: * siscone/spherical/split_merge.cpp (save_contents, show): * siscone/split_merge.cpp (save_contents, show): * siscone/quadtree.cpp (save, save_leaves): got rid of a few format warnings by replacing %le and %lf by %e and %f (the l prefix applying to int and unsigned int) + a couple of signed/unsigned mismatches (%d -> %u) * configure.ac: switched version number to 2.0.4-devel 2011-10-05 Gregory Soyez * NEWS: SISCone 2.0.3 * AUTHORS: updated addresses and phone numbers * configure.ac: * Doxyfile: * doc/html/*.html: updated the version number and the release information * Doxyfile: removed the treeview * siscone/reference.cpp: removed redundant operator + (following a gcc warning) Checked with FastJet's regression check that it was indeed not used * siscone/spherical/protocones.cpp: removed an unused variable 2011-08-09 Gregory Soyez * siscone/spherical/split_merge.h: fixed the description of E_tilde. It was sum of E_i [ 1 + sin^2(theta_iJ) ] but in practice we used sum of E_i [ 1 +|p_i x p_J|^2/(|p_i|^2 E_J^2)] as mentioned further down in the ChangeLog (that avoids potential issues when a protojet has a zero 3-momentum) 2011-05-17 Gregory Soyez * configure.ac, Doxyfile & NEWS: SISCone 2.0.2 2010-10-27 Gregory Soyez * siscone/makefile.static: recursed make clean in the spherical dir * siscone/spherical/makefile.static: included main siscone header directory * siscone/siscone.cpp, siscone/spherical/siscone.cpp: The config.h header should be present from autoheader in the autotools build and from the sed command in the main makefile.static for build using the static makefiles. 2009-05-29 Gregory Soyez * configure.ac & NEWS: SISCone 2.0.1 2009-05-28 Gregory Soyez * Doxyfile (PROJECT_NUMBER): doc/html/*.html: switched the version number to 2.0.1 * INSTALL (Notes): fixed the comment on the static/shared default build * configure.ac: enabled shared libs by defaut (following a long discussion regarding static vs. shared libraries, we finally decided to make a minimal modification compared to the previous release, i.e. keep shared libraries on) 2009-05-25 Gregory Soyez * configure.ac: switched back to static libraries * siscone/Makefile.am: examples/Makefile.am: siscone/spherical/Makefile.am: replace a few ${var} by $(var) to be more compatible with Makefile rules 2009-05-01 Gregory Soyez * siscone/spherical/hash.cpp (siscone_spherical): renamed _R into _radius (problem with some Mac systems). Note: some of the comments were mentioning R2 as a parameter rather than R, so this has been fixed at the same time. * configure.ac: build shared libs by default This is a bug-fix for FastJet that now uses shared libs by default too * configure.ac & Doxyfile: switched version number to 2.0.1-devel 2009-04-17 Gregory Soyez * NEWS & configure.ac: SISCone 2.0.0 * doc/html/index.html: Doxyfile: configure.ac: switched the version number to 2.0.0 2009-03-17 Gregory Soyez * siscone/split_merge.cpp (siscone): moved the computation of the rapidity limits AFTER the exclusion of the particles with pz>=E 2009-03-12 Gregory Soyez * configure.ac: switched version to 2.0-devel * NEWS: updated to include the new things in the upcoming release * Doxyfile: updated together with an additional bunch of doxygen-compliant comments in the source files 2008-08-06 Gregory Soyez * siscone/siscone.cpp (siscone): make sure that the full 4-vector information is included in the protocones list. 2008-07-29 Gregory Soyez * siscone/siscone.cpp: siscone/spherical/siscone.cpp: check that the config.h file is available. Otherwise, use fixed values for PACKAGE and VERSION. 2008-07-23 Gregory Soyez * siscone/spherical/siscone.h (siscone_spherical): set E_tilde as the default SM variable. * siscone/spherical/split_merge.{h,cpp} (siscone_spherical): addressed the issue of IRC safety related to the choice of the split-merge ordering variable. We kept E (an unsafe choice) for its simplicity and added E_tilde defined as / |p_i X p_J|^2 \ \sum_{i\in J} E_i | 1 + --------------- | \ |p_i|^2 E_J^2 / The use of E_J instead of p_J in the denominator prevents the case where jets have zero momentum (e.g. monster jets with momentum conservation) Note that this variable is only used for the ordering; the computation of the overlap is always using the energy. 2008-07-18 Gregory Soyez * siscone/siscone.cpp (siscone) siscone/spherical/siscone.cpp (siscone_spherical): package_name() returns PACKAGE_NAME, not VERSION! * siscone/spherical/Makefile.am: added a path for siscone/config.h to be correctly included * siscone/Makefile.am: prevent config.h from being shipped with the distribution 2008-07-07 Gregory Soyez * siscone/spherical/split_merge.cpp (siscone_spherical): transformed the pt2 cut-off on particles into an energy (squared) cut-off. 2008-07-07 Gregory Soyez * Spherical version included in the main trunk (see below for details) * Copied the 'spherical branch' into the siscone/spherical folder. Copied the sample program into the example folder. Imported the ChangeLog from the branch Steps remaining in the main trunk: (. = todo, - = done) - updating the makefiles - deleted the "defines.h" file in the subdir the main one is used. - tested (make distcheck + sample running) Questions: - do we also copy the unchanged files? (It will mess a bit the filenames but they concerns material hidden to the end-user, so I'd keep them in the trunk It concerns circulator, reference, ranlux and siscone_error. - do we remove the quadtree in the spherical dir? (I'd say 'yes', not done currently) - keep the "unused" files in the branch? (area, quadtree, ...) 2008-07-02 Gregory Soyez * started the process of merging the spherical version of SISCone into the main trunk. The new version will be inserted in the "siscone/spherical" directory. We shall put it under the 'siscone_spherical' namespace and rename the relevant classes using a 'CSph' prefic instead of the 'C' prefix used in the main trunk. Steps to be done in the branch: (. = todo, - = done) - move the relevant files in a 'siscone/spherical' directory - add a siscone/Makefile.am in the branch (+small updates) - change the namespace - rename the classes and update the names in the code Note that some of the classes have been kept from the main version (e.g. everything in reference.h, siscone_error.h + isolated classes like circulator, two_vector). This should not affect the end-user. - in the examples, move the main sample into a 'spherical' one - test on the branch DONE. 2008-06-16 Gregory Soyez * siscone/vicinity.cpp (siscone): revised the normalisation of the cocircular range. * siscone/split_merge.cpp (siscone): recomputed the norm of the result of a collinear merging. This is required as the norm is used in stable-cone search and not recomputed automatically. * siscone/protocones.cpp (siscone): normalised directions used to determine the angles. This might well be the reason of the co-circular problem. * siscone/geom_2d.cpp (siscone): removed an unused variable 2008-06-14 Gregory Soyez * Note: this version passed ~3e8 safety tests (including arcs, soft particles, reordering and single/multi-pass). * siscone/vicinity.cpp (siscone): added cocirc-tests WARNING: this is a naive adaptation from the cylindrical case. * siscone/momentum.h (siscone): reverted most of the last modification: since the simple computation using a cos() requires the computation of the norm (not its squared because the sign of the cos matters) it is most complicated than the one with the tangent. Note that we're free of the problem mentionned below as the only place where it can happen is in the computation of the vicinity and there we compute distances internally rather than calling is_closer. Finally, we've added a is_closer_safe with the computation using te cosine. 2008-06-13 Gregory Soyez * siscone/vicinity.cpp (siscone): pre-added co-circularity management * siscone/momentum.h (siscone): replaced the tangent used in distances comparison by a cosine (the tangent is more precise at small R but we'll probably never get down to that small values of R). The reason for the replacement is that it gives wrong results for vicinity computation for 2R>pi/2. This present computation is also faster (no x-product). All calls to that function have been updated too. 2008-06-12 Gregory Soyez * Description: this is the first complete adaptation to the SISCone jet-search using spherical coordinatee. This branch is motivated by potential applications to cosmic-rays and follows a request by Yvonne Küssel * Summary of modifications: - use the distance on a sphere instead of the eta-phi one This is the most important change and comes with modifications... well... ... everywhere. Most of the infos about the distance are in the momentum.{h,cpp} files. There are other important pieces when computing the candidate centres (in vicinity.cpp). And the theta_phi range (previously eta_phi!) in geom2d.cpp has also been relooked. - The spit--merge(SM) uses the energy instead of pttilde by default for the ordering - The final jets ae ordered in E instead of pt. - we don't remove particles with infinite rapidity (both in SC search and SM) - for the cone consistency tests, we use |px|+|py|+|pz| instead of |px|+|py| - we have removed the cut on soft particles in Csplit_merge::merge_collinear_and_remove_soft() since it was mainly used for area speed up. - Csplit_merge::use_pt_weighted_splitting is replaced by Csplit_merge::use_E_weighted_splitting when it is defined, the weight is of course 1/E^2 instead of 1/pt^2 - To emphasise the fact that this is not the main SISCone trunk, we've added one sentence in the header of every file and a WARNING in the SISCone banner. * Still to be done - implement co-circularity (currently the range is set to 0) - in the split--merge, check the precision of the collinearity test? * Other points to think about - for the split of 2 protojets, we're currently making many calls to a full distance computation. This can surely be improved when no weighting is asked... - completely remove the quadtree? - remove the area support? - remove the Ctheta_phi range? or improve it (the cell initialisation assume a square shape, not a circle, but already with a square, the geometry is rather involved) * Final word: still need a whole bunch of tests (noticeably IRC safety, speed). Note that the stable-cone search has been checked "graphically". 2008-05-20 Gregory Soyez * siscone/hash.cpp (siscone): Adapted the size of the hash to scale like Nn(=N^2R^2) instead of N^2. This allows to save a fair amount of memory. 2008-05-16 Gregory Soyez * siscone/defines.h siscone/hash.{h,cpp} (siscone) siscone/protocones.{h,cpp} (siscone): siscone/siscone.{h,cpp} (siscone): add some debug information about the occupancy of the hash when DEBUG_STABLE_CONES is defined * examples/test.cpp: update the code to use Csiscone directly instead of separate calls to stable cone search and split--merge stage. This should be less confusing for end-users. 2008-05-15 Gregory Soyez * configure.ac: in the last CXXFLAGS fix, the default has been set at a wrong place (practically, CXXFLAGS was set to the system default value -O2 -g and thus not replaced with our local default). This is fixed now. 2008-03-24 Gregory Soyez * configure.ac: fix CXXFLAGS in such a way as to allow the user to set their own default. 2008-03-17 Gregory Soyez * siscone/defines.h: siscone/siscone.h/cpp examples/option.cpp BUGS: Because of potentil conflicts with other packages, the tags defined in config.h are no longer included in defines.h but only in SISCone source files. As a practical consequence, the program name and version number are now accessed through siscone_package_name() and siscone_version() both defined in siscone.h and inside the siscone namespace. See examples/options.cpp for an example. This solves the corresponding bug reported by Seuster. 2008-03-15 Gavin Salam * BUGS: added entry related to PACKAGE/VERSION/etc reported by Seuster. 2008-03-12 Gregory Soyez * siscone/split_merge.h/cpp (siscone): This is a non-negligible modification: we have added the possibility to modify the way particles are split during the split-merge step. Assume one has to split protojets 1 and 2. The standard split associates a common particle j to the closest centre i.e. compares the distances D_{1j} vs. D_{2j}. Now, by calling Csplit_merge::set_pt_weighted_splitting(true), it is possible to perform the splitting according to the anti-kt distance i.e. comparing D_{1j}/k_{t1} vs. D_{2j}/k_{t2}. This new option should allow to produce more rigid (soft-resilient) jets. Note that the default is to use the standard distance comparison so backward compatibility is not broken. 2008-03-11 Gregory Soyez * siscone/area.cpp (siscone): the jet+area finding now really returns the number of jets as does the standard clustering * siscone/area.cpp (siscone): don't include ghosts in stable-cone search when only the passive area is requested. This is a huge speed improvement as the execution time (when only passive area is requested) is now (with Ntot = N+Nghosts) O(N^2 log(N) + Ntot^2) instead of O(Ntot^2 log(Ntot) + Ntot^2) * configure.ac: switched the main trunk to SISCone-1.4.0-devel 2008-03-07 Gavin SALAM * configure.ac: switched version to 1.3.1 2008-01-17 Gavin Salam * configure.ac: switched version number over to 1.3.1-devel 2008-01-15 Gregory Soyez * siscone/geom_2d.h (M_PI): added definition of M_PI if needed (VC compilation) * siscone/protocones.cpp (siscone): added the algorithm header (VC compilation) 2007-11-12 Gregory Soyez * NEWS & configure.ac: SISCone 1.3.0 2007-11-10 Gavin Salam * configure.ac: * examples/Makefile.am: * examples/events/Makefile.am: made sure some sample events were included in the dist 2007-11-07 Gavin SALAM * configure.ac: switched +="" to A=A"" to eliminate an error on mac 2007-10-24 Gregory Soyez * examples/options.cpp: fix a missing "siscone/" in header include * examples/Makefile.am: fix a problem with make distcheck * configure.ac: the --enable-shared cmd-line option is already handled by libtool. We just need to add AM_DISABLE_SHARED to disable the shared lib by default (can still be changed by using --enable-shared) Also, we set the minimal version of autoconf to 2.57. * examples/Makefile.am: do not install anything (just build examples locally) * examples/main.cpp (main): print a more specific error message when the event file cannot be opened 2007-10-03 Gregory Soyez * siscone/defines.h: read available information from config.h * In examples, include headers from the 'siscone' folder * Move the src folder into a new 'siscone' folder 2007-10-02 Gregory Soyez * add configure script for the build process. This comes with a bunch of new files: autogen.sh, configure.ac, and a Makefile.am in each directory. See the INSTALL files for more details * replace each Makefile by makefile.static Makefile-based build is now made through make -f makefile.static * examples/area.cpp: add a sample program for SISCone jet area computation 2007-06-24 Gregory Soyez * src/defines.h: SISCone 1.2.0 2007-06-15 Gregory Soyez * src/geom_2d.h/cpp: use a 32x32 eta-phi-plane tiling. The range is then defined by two binary fields. This allows easy overlap test and merging. For protojets splitting, the new ranges are built by adding particles one-by-one. * src/split_merge.cpp (siscone): - align code with the modifications in geom_2d.h/cpp - the output of save_contents has slightly been improved * src/area.h/cpp: add methods to compute only the active or passive area * examples/main.cpp: add pass-by-pass statistics in the verbose output * examples/options.cpp: fix bug when passing an unknown long option to getopt_long 2007-06-02 Gregory Soyez * examples/sample.cpp: add a few lines to show how one can browse the output jets of compute_jets. * examples/times.cpp: only save runtime using the siscone class instead of a separate determination. 2007-05-09 Gavin Salam * src/split_merge.cpp: soft_pt2_cutoff -> stable_cone_soft_pt2_cutoff fixed infinite loop for non-zero stable_cone_soft_pt2_cutoff 2007-05-09 Gregory Soyez * src/split_merge.cpp|h: When building the list of particles to be passed to stable-cone search, allow to remove particles below a pt2 threshold soft_pt2_cutoff. 2007-04-27 Gavin SALAM * src/geom_2d.cpp: corrected bugs in range_union -- now passes test that 1000 events are identical to what we had previously. 2007-04-26 Gregory Soyez * src/split_merge.cpp (siscone): add range support to the split--merge. When computing overlap, we first check that the two ranges overlap. In splitting, ranges are set to the parent ranges. In merging, range is set as the union of the parent ranges. * src/split_merge.h: add a range variable to the Cjet class * src/geom_2d.cpp/h (siscone): add the Ceta_phi_range to handle covering ranges in the ete-phi plane. This goes with a function to test overlap and another to compute union. * src/momentum.h: Move geometry tools into geom_2d.h (new file) 2007-04-24 Gavin SALAM + Matteo * src/defines.h (VERSION): updated version number to 1.1.2-devel * src/split_merge.cpp (include): moved test on SM_var2_hardest_cut_off to beginning of loop, to ensure that we don't get a first jet that's below the cutoff. 2007-04-20 Gregory Soyez * src/split_merge.h: remove the "protected" attribute for 'SM_var2_hardest_cut_off' for easier inclusion in fastjet. Note however that the 'protected' declaration in the previous version was used to prevent from dangerous usage of the variable. This is still applicable now! 2007-04-18 Gregory Soyez * src/area.cpp: Add a parameter '_hard_only' which allow to compute only the hard jets area (without the purely ghosted ones. * src/split_merge.h/cpp: Add a cut-off on the SM_var of the hardest protojet. This is useful for computation of the area of the hard jets without computing the purel ghosted ones. Note that this cut-off is colinear-unsafe so has to be used with great care. 2007-04-13 Gregory Soyez * src/area.cpp: add Carea, the class to compute jet area 2007-03-16 Gregory Soyez * SISCone 1.1.1 (tags/siscone-1.1.1) 2007-03-15 Gregory Soyez * doc/html/usage.html: update the html doc for the recent modifications of the split-merge algorithm. * src/split_merge.cpp: improve the recomputation method when two jets are very close in the ordering when SM var is set to SM_Et 2007-03-15 Gavin SALAM * src/split_merge.cpp: modified fix to multiple-pass bug, in hope of being minimally sensitive to rounding errors 2007-03-15 Gregory Soyez * src/siscone.h: set the default number of passes to 0 * examples/main.cpp: adding two command line parameters to the siscone application: - npass controls the number of passes (0 by default) - sm controls the choice for the split--merge variable 2007-03-14 Gregory Soyez * src/momentum.h: add Et (inline) member function * src/siscone.h: remove backward-compatibility computation members to make things more clear. * src/split_merge.cpp: - fix multiple-pass bug - add Et SM variable management 2007-03-14 Gavin Salam * src/split_merge.cpp: put an assert for zero-size jets (common sign of a bug...); ensured that "recomputed" protocones (with full momentum) also have their eta-phi recalculated. 2007-03-12 Gavin SALAM * src/split_merge.cpp: added some more debugging output. 2007-03-10 Gavin Salam * src/split_merge.cpp: fixed some typos and a bug in the EPSILON_SPLITMERGE case for pt-tilde. 2007-03-09 Gregory Soyez * src/siscone.h: The default value for the SM variable is set to pttilde * src/split_merge.h/cpp: Update the split--merge procedure so that it takes into account the choice for the split--merge variable. Among the four choices, (pt_tilde, mt, pt and Et), pt_tilde is the default (mt and pt can lead to IR unsafety). Et is not yet implemented. We strongly advise to keep default value. 2007-03-09 Gavin Salam * src/siscone.h|cpp: * src/split_merge.h|cpp: introduced an enum, Esplit_merge_scale (naming convention in analogy with the leading "C" for classes), which contains values SM_pt, SM_Et, SM_mt, SM_pttilde, and put in routines that take the enum (as well as leaving in old ones) 2007-03-06 Gavin SALAM * src/split_merge.cpp: added transverse mass to info printed out about protojets with the debug mode on (helpful in investigating limiting IR cases) 2007-03-02 Gregory Soyez * SISCone 1.1.0 (tags/siscone-1.1.0) 2007-03-02 Gavin Salam * src/split_merge.cpp: transformed a quiet error on illegal f values into a throw. * src/siscone.cpp: throw an error on illegal R values. 2007-03-01 Gavin Salam * src/split_merge.cpp|h: added a new member variable, most_ambiguous_split, which records the degree of ambiguity of the most ambiguous decision about attributing a particle to one or other jet during a split step. Useful for testing purposes. 2007-03-01 Gregory Soyez * src/split_merge.cpp: set the full momentum information on stable cones when we add them to the protojet list * src/siscone.h,cpp: add comments concerning the split_merge_on_transverse_mass parameter * src/defines.h (VERSION): set to 1.1.0beta * src/split_merge.cpp (siscone): - set ptmin as a real pt cut-off (independent on the choice of variable for the SM) - code cleaned (involves other files e.g. defines.h momentum.h/cpp, siscone.h/cpp) * set the website to the HEPForge one in headers * replaced 'content' by 'contents' everywhere WARNING: it implies Cjet::contents and Csplit_merge::save_contents * src/quadtree.cpp (siscone): replace 'childs' with 'children' 2007-02-21 Gregory Soyez * src/protocones.cpp (siscone): - remove all functions that are no longer necessary and replace them by their new version. This includes the computatin of the cone content, its re-computation, the check for co-circularity and the test for stable cones in the co-circular situations. - add a few comments of potentially tricky points. - remove "cout" statements. - remove 'largest_cocircular_range' which is no longer used * src/vicinity.h: - "largest_cocircular_range" removed. - quadtree related stuff removed. As a consequence, 'build_from_list' is renamed 'build'. The usage of the quadtree can now only be used in 'Cstable_cone::proceed_with_stability' hence, the USE_QUADTREE define has been renamed USE_QUADTREE_FOR_STABILITY_TEST. - Comments aligned to make the code clearer. * src/momentum.h: Add mass() and mass2() member functions to Cmomentum(). Put inline functions in the header rather than in the source file. * add C++ mark ("// -*- C++ -*-") in the headers where it was missing 2007-02-20 Gavin Salam * src/split_merge.cpp: enhanced check on infinite rapidities to include also meaningless rapidities. * src/split_merge.cpp|h: * src/siscone.cpp: sorted out an issue on multi-pass runs caused by earlier fix for transverse mass ordering. 2007-02-20 [am-pm] Gavin Salam * src/split_merge.cpp: fixed a bug that appeared once split_merge_on_transverse_mass got moved into the Csplit_merge_ptcomparison class * src/protocones.cpp|h: introduced compute_cone_contents_nodist(), which calculates the initial cone contents by circulating around all in/out operations and collecting the net result --- this avoids any distance calculations and so removes a potential source of rounding error. (Any remaining rounding error is dealt with by cocircularity tests). * src/defines.h added more info about the meaning of the different EPSILON scales. 2007-02-19 [evening] Gavin Salam * src/defines.h: introduced const bool split_merge_on_transverse_mass, which determines whether the split merge occurs on transverse mass instead of pt -- the latter turns out to be IR unsafe in mom-conserving events for moderately large values of R (R>1) * src/split_merge.cpp: implemented the split-merge ordering on transverse masses, including the limit of there being small differences. * src/momentum.h: introduced perpmass2() which returns the transverse mass, pt^2+m^2 2007-02-19 [pm] Gavin Salam NB: seg-faults are being seen sporadically when fastjet writes its description & need to be understood (but very rare and valgrind gives nothing on small numbers of events...) * src/defines.h: added optional #define EPSILON_SPLITMERGE, which if defined, sets a threshold for pt differences below which the ordering is determined from the explicit particle content... * src/split_merge.cpp|h: trying to introduce more "exact" pt comparison in split merge to deal with multiple scales -- this involves a new Csplit_merge_ptcomparison class which allows the set to carry out comparisons while making use of knowledge about the particle momenta inside the split_merge class. * src/circulator.h: added != and == comparison operators. * src/protocones.h|cpp: added Cstable_cones::test_cone_cocircular_p3() for carrying out a p^3 check of stability -- NB seems a bit slower for small p, but obviously much better for large p... Tests of 2*10^5 particles show no errors, longer tests to be done later... 2007-02-19 [am, early pm] Gavin Salam * src/vicinity.h|cpp: introduced the Cvicinity_inclusion class to allow one to carry out checks both on the inclusion in the cone and in its "cocircular" border. Made corresponding changes elsewhere. * src/protocones.h|cpp: wrote new_cocircular_check() and ran a certain number of tests on it; currently it is this one that is being called from update_cone(), but it still uses the original 2^p routine for actually checking the cone status. * src/[elsewhere] added a lot of (now commented) debugging statements to help fix bugs in the new_cocircular_check(). 2007-02-18 [pm - later] Gavin Salam * src/circulator.h: *** ADDED *** class for a circulator, used below. * src/protocones.(h|cpp): wrote prepare_cocircular_lists(), and checked that it's working sensibly on some simple test events; also added code for esetablishing the largest cocircular range among the children of the current parent (should be used later to establish a more reliable in/out status). NB: the call to this function has added another 1-2% slowdown, and we're now about 3-4% slower than before starting this morning. But this should be the last of the changes that adds significant extra time use? * src/vicinity.(h|cpp): support code for the protocones modification 2007-02-18 [pm] Gavin Salam * src/defines.h: changed default EPSILON values to reflect what will be needed with the new approach. * src/vicinity.cpp: carried out the calculation of cocircular_range inside the append_to_vicinity member function; the extra calculations/storage etc lead to a 2-3% slow-down for the standard fastjet (354 particle) test event with R=1. * src/momentum.h: added a small 2-vector class, needed as a shorthand in vicinity.cpp, plus various small utility routines. * src/vicinity.h: introduced cocircular_range and cocircular (list) as members of Cvicinity_elm * src/momentum.h: introduced phi_in_range, dphi and abs_dphi inline functions. 2007-02-18 [am] Gavin Salam * src/vicinity.cpp (include): switched to twopi from defines.h instead of the pi2 class member * src/siscone_error.(cpp|h): *** ADDED *** this is a simple class for throwing errors. * src/protocones.cpp: caused test_cone cocircular to throw errors when it receives more than 32 points carried out replacement client -> candidate * src/defines.h: introduced definition of twopi, which is used in many place (only some usage instances have been replaced for now). 2007-02-16 Gregory Soyez * src/defines.h: consider the limit on cocircularity and collinearity as different ones. This introduces the EPSILON_COCIRCULAR definition. * src/protocones.cpp (siscone): 1. the list of cocircular situations already encountered is maintained with a pair of references (the cone contents and its border) instead of its coordinates. 2. we have improved the recomputation of the cone contents by dynamically tracking he particles inside of the cone. This adds a list of included particles in Cvicinity as well as a pointer to elements of that list in vicinity elements. 2007-02-15 Gregory Soyez * src/protocones.cpp: Code has been restructured to clearly separate the cocircular case * dealt woth cocircularity and 2\pi periodicity and added an inline fction 2007-02-14 Gregory Soyez * src/reference.cpp (siscone): ensures that the reference is not zero * src/protocones.cpp (siscone): Fix a bug with the interference between the recomputation of jets and the update of cocircular points * src/protocones.cpp (siscone): add tests for recomputation of the cone content for the case of cocircular points * src/protocones.cpp (siscone): when testing the threshold for recomputation of te cone content, we add a test putting automatically the cone to 0 when it is empty. 2007-02-13 Gregory Soyez * We add a test of cocircularity: when more the p>2 particles are found on the same circle, we branch to a different test of cone stability. This new part of the algorithm tests all possible inclusions/exclusions of the particles along the circle in a 2^p-type algorithm. Note that findling large values of p is highly improbable ! 2007-02-12 Gregory Soyez * when traversing the centre list (in stable cones search), we start with the centre which is the most separated from its neighbours. This allows to minimize the possibility that we miscomputed the computation of the initial cone content due to possible rounding errors when two centres are too close. 2007-02-12 Gregory Soyez * in collinear merging, take care of the periodicity in phi * put the threshold for collinear merging in defines.h (EPSILON_COLLINEAR) 2007-02-12 Gregory Soyez * undo the previous modification and use another approach to deal with collinear particles: we keep the p_remain list as it was before (see revision 84). Instead, after computing p_remain, we compute p_uncol which is obtained from p_remain by merging collinear particles. In the siscone main loop, we then use p_uncol instead of p_remain for the search for stable cones. Note that with this modification, the 'parent_index' field of Cmomentum is back to its original definition as a 'int'. 2007-02-12 Gregory Soyez * remove initialisation of parent_index in momentum.cpp and vicinity.cpp This is allowed because of the Npass loop in siscone. Indeed, parent_index is only used internally in split_merge and init at the very beginning of the loop by a call to init_pleft * replaced "int parent_index" by "vector parent_index" and align the code in split_merge.cpp * add a few lines off code in split_merge.cpp to account for collinear particles. * Note concerning the previous update: the change has been validated and is no longer considered as temporary 2007-02-12 Gregory Soyez * Changed the test for recomputation of cone content in Cstable_cones see defines.h for details (this change may be temporary) 2007-02-10 Gregory Soyez * fixed doxygen documentation issues: - undocumented or renamed parameters - include various links into a custom html footer 2007-01-25 Gregory Soyez * fixed memory leak for Cvicinity::ve_list in Cvicinity::set_particle_list() 2007-01-23 Gavin SALAM * added _ptmin argument to Csiscone::recompute_jets(...) 2007-01-22 Gregory Soyez * add ptmin threshold on protojets during split-merge * modify example program to allow for the --ptmin option 2007-01-20 Gregory Soyez * fix typo mistake in split_merge.cpp 2007-01-18 Gregory Soyez * insert a header on top of each source files to give brief information about its content, the SISCone project and copyright 2007-01-03 Gregory Soyez * remove the usage of the quadtree in stable cones detection. Usage of the quadtree in vicinity list creation and final stability tests can be switched on buy defining USE_QUADTREE in defines.h. This step was not fully achieved in the last update. 2006-12-28 Gregory Soyez * remove the usage of the quadtree in stable cones detection. Usage of the quadtree in vicinity list creation and final stability tests can be switched on by defining USE_QUADTREE in defines.h 2006-12-28 Gavin Salam * commented out various "template std::vector<...>" lines to solve compilation problem on Macs. * modified the make depend targets so that they do not include "standard" include files (which differ from one system to another). * fixed log(_Np) bug pointed out by Matteo; fixed program name in defines.h 2006-12-28 Gregory Soyez * replace variables with name being "underscore" followed by a single letter by longer names since they lead to compilation problems under Mac. In practice, we renamed _N with _Np in hash.cpp/h and _R by _radius in protocones.cpp/h and siscone.cpp/h 2006-12-27 Gregory Soyez * arranged for "make dist" to create a file with the same version name in the directory and the tar file; made the tar-file read-only (to avoid involuntarily overwrite); removed svn file from the examples/events subdirectory. 2006-12-26 Gregory Soyez * updated the 'dist' target in the Makefile: include mem_check with the correct path and build archive so that it unpacks into a siscone-1.0-beta directory * fix typos in INSTALL 2006-12-26 Gavin Salam * Changed banner so that first char is # (to allow the rest of the line to be considered a comment by things like gnuplot). * moved scones -> siscone (and sorted out various "ignores") * Reordered changelog so that later stuff appears first (I think this is standard? Makes it easier to see what's been happening recently...) * Tidying up: moved jets.gri and mem_check into the examples directory; added -f to "rm" command in make clean to avoid errors; modified siscones->siscone in a couple of places in doc. * Brought the README and INSTALL files up to date * set some svn:ignore property so as to ignore .dat files (to reduce "noise" with svn status). * added #!/bin/bash to head of examples/mem_check 2006-12-22 Gregory Soyez * rename scones namespace into siscone * put ranlux stuff into the namespace (we don't want to pollute the gobal namespace * add doc/devel as directory for developer's documentation (using Doxygen) * scones.h/cpp is renamed siscone.h/cpp * creation of an 'examples' directory for various programs only the library libsiscone.a is left in the src dir Malefiles are modified accordingly 2006-12-21 Gavin Salam * added the MERGE_IDENTICAL_PROTOCONES_DEFAULT_TRUE define to allow one to make MERGE_IDENTICAL_PROTOCONES to be set true by default if need be. (This makes it a bit easier to make a quick modification to run a test). * changed some of the related comments * replaced occurrences of "extensive" with "multipass" * Added the ChangeLog file! 2006-12-21 START OF CHANGELOG Index: trunk/NEWS =================================================================== --- trunk/NEWS (revision 417) +++ trunk/NEWS (revision 418) @@ -1,211 +1,211 @@ This file contains the history of SISCone releases. For each one, we give a short summary of the important changes from the previous version. If you want to see a more detailed list of changes, please read the ChangeLog file. SISCone version 3.0.4 (September 26 2018) ===================== -* Minor release, improved shared library handling by fixinf +* Minor release, improved shared library handling by fixing inter-dependences. (version to be included in FastJet>=3.3.2) SISCone version 3.0.3 (August 3 2016) ===================== * Minor release, installing config.h to include flags decided at configure time. (version to be included in FastJet>=3.2.1) SISCone version 3.0.2 (March 16 2016) ===================== * Minor release, fixing a bug due to an array being used uninitialised (no impact on results). Also replaced auto_ptr by unique_ptr when supported by compiler (version to be included in FastJet>=3.2.0) SISCone version 3.0.1 (February 29 2016) ===================== * Minor release, fixing a bug due to a rounding issue that occurs the theta range in (rare) specific configurations where theta=pi in the split-merge procedure for spherical SISCone SISCone version 3.0.0 (September 9 2014) ===================== * Added the option of running SISCone with progressive removal, corresponding to the following algorithm: 1. search for stable cones 2. declare the hardest stable cone a jet and remove its particles from the list of remaining particles 3. if there are some remaining particles, go back to 1. Use Csiscone::compute_jets_progressive_removal(...) for this version of SISCone The scale used to determine which is the hardest stable cone can be chosen amongst the same options as the scale used for the split--merge step [SM_pttilde by default for the pp version of SISCone, SM_Etilde for the spherical version]. Alternatively, a user-defined scale choice can be provided using set_user_scale(...). Version to be included in FastJet>=3.1.0 SISCone version 2.0.6 (April 9 2013) ===================== * Minor release fixing an issue concerning the installation of configuration headers and bringing small updates in the autotools build system (version to be included in FastJet>=3.0.4) SISCone version 2.0.5 (January 17 2012) ===================== * Minor release bringing minor improvements to the build system (version to be included in FastJet>=3.0.2) SISCone version 2.0.4 (November 25 2011) ===================== * Minor release to remove a few gcc warnings when compiled with high warning level (-ansi -pedantic -Wextra -Wshadow) (version to be included in FastJet>=3.0.1) SISCone version 2.0.3 (October 5 2011) ===================== * Minor release to fix a badly documented Etilde variable in the spherical version of SISCone and to remove a few gcc warnings (version to be included in FastJet 3.x) SISCone version 2.0.2 (May 2011) ===================== * minor modifications to the build system (version to be included in FastJet 3.x) SISCone version 2.0.1 (May 2009) ===================== * enabled shared libraries by default [that was the source of a bug in fastJet] * replaced _R with _radius to fix build problems on old OSX systems * fixed some syntax inconsistencies in Makefile.am's SISCone version 2.0.0 (Apr 2009) ===================== * Added a spherical version of SISCone for use in e+e- collisions This typically works in the same way as the pp version of SISCone with the following remarks: - the classes fot the spherical versions of SISCone are prefixed by 'CSph' instead of 'C' (e.g. CSphMomentum CSphSISCone) - the cone radius is defined as its half opening angle (particle distances are also defined through the angle they define, or, equivalently, as distances on the surface of a unit sphere) - For ordering the protojets during the split--merge, we use E_tilde defined as / |p_i X p_J|^2 \ \sum_{i\in J} E_i | 1 + --------------- | \ |p_i|^2 E_J^2 / Note that the computation of the overlap uses the "plain" energy * Added a flag (Csiscone::use_pt_weighted_splitting) to modify the split part of the split-merge procedure in such a way that a shared particle i is assigned the one of the overlapping jets j=1,2 that has the smaller value of DeltaR_{ij}/p_{tj}. This produces more circular jets. * fixed a bug in the computation of the rapidity range in the split-merge step * the protocones list now contains the full 4-momentum information (rather than just eta and phi) * fixed bugs in example/test.cpp SISCone version 1.3.3 (Aug 2008) ===================== * added bugfix for g++-4.3 (missing headers for "exit") SISCone version 1.3.2 (Mar 2008) ===================== * VERSION and PROGRAM (or PACKAGE_NAME) are no longer accessible directly because of potential conflicts with other packages. You should use siscone_version() and siscone_package_name() instead. (Thanks to Rolf Seuster) * allow the users to set their own default compilation flags. SISCone version 1.3.1 (Mar 2008) ===================== * fixed some compilation issues under windows SISCone version 1.3.0 (Nov 2007) ===================== * The main update in this new release is the switch to 'autotools'. This means that instead of using the (static) Makefile build process, you can now use the "standard ./configure; make; make install" approach. See the INSTALL file for details. * added a 'siscone_area' example of how jet areas work within SISCone. SISCone version 1.2.0 (Jun 2007) ===================== * 10-15% speed increase by introducing a tiling in the eta-phi plane allowing for better overlap checking in the split--merge. This can turn into a bigger effect for area computations. * implementing a 'jet area' class to compute active and/or passive areas. * in examples: - fix bug in the cmdline parsing (there was a segfault with unrecognised long options), - add "passes information" to the verbose output of the main siscone program, - solve problems with the 'time' example. SISCone version 1.1.1 (Mar 2007) ===================== * The major upgrade is the use of pttilde (p-scheme pt) instead of mt in the split--merge process. Indeed, we have noticed that mt can lead to IR usafety in the case of two back-to-back narrow-decay-width unstable particles (e.g. a pair of Higgs bosons). See http://projects.hepforge.org/siscone/sm_issue.html for details. Note that SISCone 1.1.1 allows the user to specify its choice for the split-merge variable (we highly recommand the default choice) * The number of passes is now set to infinity (0) by default * Small minor changes in the 'siscone' command-line options SISCone version 1.1.0 (Mar 2007) ===================== * dealt with colinearity issues * dealt with cocircularity situations (and related rounding errors) * use mt instead of pt in the split-merge pt lead to some IR unsafety for events with momentum conservation * move all references to HEPForge * Important note: some typos have been fixed. As a consequence, some end-user members have been affected: - The contents of the jets is accessed through 'Cjet::contents' instead of 'Cjet::content' - The function called to save the jet contents to disk is 'Csplit_merge::save_contents' instead of 'Csplit_merge::save_content' Note that 'Csiscone::save_contents' is also valid. SISCone version 1.0.0 (Jan 2007) ===================== This is the first stable release of siscone.