Opened 10 years ago
Last modified 7 years ago
#444 new Bug
Issues running Delphes examples
Reported by: | Vince Pascuzzi | Owned by: | |
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Priority: | major | Milestone: | |
Component: | Delphes code | Version: | Delphes 3 |
Keywords: | Cc: |
Description
Hi,
I followed the README in order to install Delphes (simple enough). I then tried running a "Simple analysis using TTree::Draw" (also from README):
error: cannot use arrow operator on a type
I can open a TBrowser and everything is OK.
Furthermore, I cannot run any examples. When I try to run Example1.C as a macro, none of the Delphes externals can be found, e.g. ExRootTreeReader, nor the Delphes classes, e.g. Electron, Jet. The errors are:
allocation of incomplete type 'ExRootTreeReader/Jet/Electron'
member access into incomplete type '...
I have set my environment variables (at least I think they are correct), but I must be missing something. If any additional information is needed to diagnose the issues, please let me know.
All the best,
Vince.
Delphes-3.2.0
ROOT 6.02/05
OS X Yosemite 10.10.2
Attachments (2)
Change History (20)
comment:1 by , 10 years ago
Type: | How to → Bug |
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comment:2 by , 10 years ago
comment:3 by , 10 years ago
Some output:
Vinces-MacBook-Pro:~ vincepascuzzi$ root -l /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C'("/Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/MY_PROCS/sm_pp_wpwm/Events/run_01/wpwm_ATLAS_7TeV_delphes_events.root")' root [0] Processing /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C("/Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/MY_PROCS/sm_pp_wpwm/Events/run_01/wpwm_ATLAS_7TeV_delphes_events.root")... In file included from input_line_24:1: /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:20:3: error: unknown type name 'ExRootTreeReader' ExRootTreeReader *treeReader = new ExRootTreeReader(&chain); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:20:38: error: unknown type name 'ExRootTreeReader' ExRootTreeReader *treeReader = new ExRootTreeReader(&chain); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:41:7: error: unknown type name 'Jet' Jet *jet = (Jet*) branchJet->At(0); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:41:19: error: use of undeclared identifier 'Jet' Jet *jet = (Jet*) branchJet->At(0); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:41:23: error: expected expression Jet *jet = (Jet*) branchJet->At(0); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:50:5: error: unknown type name 'Electron' Electron *elec1, *elec2; ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:56:16: error: use of undeclared identifier 'Electron' elec1 = (Electron *) branchElectron->At(0); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:56:26: error: expected expression elec1 = (Electron *) branchElectron->At(0); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:57:7: error: use of undeclared identifier 'elec2' elec2 = (Electron *) branchElectron->At(1); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:57:16: error: use of undeclared identifier 'Electron' elec2 = (Electron *) branchElectron->At(1); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:57:26: error: expected expression elec2 = (Electron *) branchElectron->At(1); ^ /Users/vincepascuzzi/sw/MG5_aMC_v2_2_3/Delphes-3.2.0/examples/Example1.C:60:40: error: use of undeclared identifier 'elec2' histMass->Fill(((elec1->P4()) + (elec2->P4())).M());
comment:4 by , 10 years ago
Hi Vince,
Thanks for finding these problems.
All the examples were tested and are still working with ROOT 5. I did not test them with ROOT 6.
It looks like the command-line interface in ROOT 6 behaves very differently than in ROOT 5. It's less permissive and it's more verbose.
The example with Draw should now look like
root gSystem->Load("libDelphes"); TFile::Open("delphes_output.root"); TTree *tree = (TTree *) gDirectory->Get("Delphes"); tree->Draw("Electron.PT");
At the moment, I don't see how to make Example1.C working. It seem that in ROOT 6 'gSystem->Load("libDelphes");' is not enough to make the Delphes classes appear in the list of classes known to ROOT.
The compiled version of Example1 is a quick demonstration of how to compile a ROOT macro that was requested in https://cp3.irmp.ucl.ac.be/projects/delphes/ticket/182
Cheers,
Pavel
comment:5 by , 10 years ago
I've just found a note confirming that the following code does not work in ROOT 6:
void f() {gSystem->Load("libEvent"); Event* e = new Event();}
Here is the link
comment:6 by , 10 years ago
Hi Pavel,
Thank you for the input. I also added a post to the ROOT forum, perhaps a bit more detailed: https://root.cern.ch/phpBB3/viewtopic.php?f=3&t=19484&p=83255&hilit=Delphes%2FExRootAnalysis#p83255. Basically, I attempted to use ROOT5 but receive additional errors (found in link).
Please advise.
All the best,
Vince.
comment:7 by , 10 years ago
Hi Vince,
The error message that you posted on the ROOT forum
Symbol not found: _gInterpreterMutex Expected in: /Users/vincepascuzzi/sw/root/lib/libCore.so
clearly indicates a problem with your ROOT 5 installation or ROOT 5 related environment variables.
Could you check if the ROOTSYS, PATH and LD_LIBRARY_PATH point to the right locations and they don't point to the ROOT 5 and ROOT 6 locations at the same time?
Cheers,
Pavel
comment:8 by , 10 years ago
Hi Pavel,
I included an env.txt in that post. Only a single version of ROOT is ever added to the environment at any time (as far as I can tell). Should a prebuilt binary of version 5 work? I do not compile in a very specific way, I only include pythia8.
Could it possibly be something else?
Thanks,
Vince.
comment:9 by , 10 years ago
Hi Vince,
When you switch ROOT versions do you rebuild Delphes?
I've just tested Delphes 3.2.0 with the following per-built versions:
http://root.cern.ch/download/root_v5.34.28.macosx64-10.10-clang60.tar.gz
http://root.cern.ch/download/root_v6.02.05.macosx64-10.10-i386.tar.gz
Both seem to work. I can run
tar -zxf Delphes-3.2.0.tar.gz cd Delphes-3.2.0 make -j 4 curl http://cp3.irmp.ucl.ac.be/~demin/test.hepmc.gz | gunzip | ./DelphesHepMC cards/delphes_card_CMS.tcl delphes_output.root root -l examples/Example1.C'("delphes_output.root")'
with ROOT 5.34.28 without any error messages.
Cheers,
Pavel
comment:10 by , 10 years ago
Hi Pavel,
Well, that embarrassing...Could you kindly tell me whatever changes you made to your environment variables? Should it matter where Delphes is installed?
All the best,
Vince.
comment:11 by , 10 years ago
Here are the ROOT related lines from my .profile:
#export ROOTSYS=$HOME/root/root_v6.02.05.macosx64-10.10-i386 export ROOTSYS=$HOME/root/root_v5.34.28.macosx64-10.10-clang60 export PATH=$ROOTSYS/bin:$PATH export PYTHONPATH=$ROOTSYS/lib:$PYTHONPATH export LD_LIBRARY_PATH=$ROOTSYS/lib:$LD_LIBRARY_PATH
comment:12 by , 10 years ago
Nothing to do with Delphes in your profile? I am giving it another shot now.
comment:13 by , 10 years ago
Normally, I run all the Delphes programs directly from the Delphes directory, so I don't configure any environment variables for Delphes.
by , 10 years ago
Attachment: | Screen Shot 2015-03-27 at 11.20.23 AM.png added |
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Empty ROOT plot from Example1.C
comment:14 by , 10 years ago
Hi Pavel,
Adjusting my profile as you suggested I was able to run Example1.C, however the plot produced was empty (see attachment).
[EDIT]
That said, using my own Delphes output file the plot was populated. However, does the plot make sense? I'd like to be sure everything is copacetic before I move on past this. THAT said, I appreciate very much all your assistance and am happy to say I am much happier having this working.
Vince
by , 10 years ago
Attachment: | Screen Shot 2015-03-27 at 11.25.03 AM.png added |
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Example1.C run with my Delphes output.
comment:15 by , 10 years ago
Great! It's good to know that you can now run the examples.
The file that I was using for tests does not contain any electrons. So, it's normal that the plot is empty.
comment:16 by , 9 years ago
New version of the examples and EventDisplay now works with ROOT 6.04. It will be included in the next release.
comment:17 by , 7 years ago
Hi there Pavel,
Sorry to revive this, but I am having the same issue with ROOT6 now. Has the capacity for including libraries through code like gSystem->Load("libDelphes") work in any newer ROOT 6?
Are there any series limitations in earlier versions of Delphes other than 3.4.1 that would prevent me from simply simulation qcd events in a detector? I ask because only older versions of delphes seem compatible with older root.
Thanks,
Michael
comment:18 by , 7 years ago
Sorry to revive this, but I am having the same issue with ROOT6 now.
Please provide more details about your setup: OS version, C++ compiler version, ROOT version, how ROOT was installed, Delphes version.
Furthermore, when I try to run Example1 that is compiled in the Delphes install directory, all appears OK as it outputs each jet pt and at the end gives:
Info in <TCanvas::MakeDefCanvas>: created default TCanvas with name c1
however, no plot is displayed. The program executes without any hiccups however no ROOT plot is drawn (nothing appears).
Please advise.
Vince
OS X Yosemite 10.10.2
ROOT 6.02/05
Delphes-3.2.0