Making library for Herwig++ using root

ROOT
1

Hello,
I would like to ask root experts for a help, since I didn’t find any up-to date documentation on Herwig++ pages.
I have an working library to analyse particles during the generation in Herwig++ (v2.6.3). However,
it crashes when I include root’s libraries.
My root (v5.34/10) seems to work fine in other ocasions, though.

I do:
I have DPIAnalysis.cc and DPIAnalysis.h and I make DPIAnalysis.so from it
using Makefile provided by Herwig++. This library is used in the generation. This works fine.

When I include e.q. TH1D.h. in DPIAnalysis.h and make DPIAnalysis.so using
Makefile (see below) - the making reports no error, but the Herwig++ then crushes:

Error: InternalAnalysis::DPIAnalysis: No such class found. error message from dynamic loader: /home/mira/local/Herwig++-2.6.3/lib/Herwig++/DPIAnalysis.so: cannot open shared object file: No such file or directory /home/mira/local/ThePEG-1.8.3/lib/ThePEG/DPIAnalysis.so: cannot open shared object file: No such file or directory ./DPIAnalysis.so: undefined symbol: _ZN13TVersionCheckC1Ei /home/mira/local/Herwig++-2.6.3/lib/Herwig++/DPIAnalysis.so: cannot open shared object file: No such file or directory /home/mira/local/ThePEG-1.8.3/lib/ThePEG/DPIAnalysis.so: cannot open shared object file: No such file or directory DPIAnalysis.so: undefined symbol: _ZN13TVersionCheckC1Ei

Herwig should see my library DPIAnalysis.so, it is in folder I run the generation,
I think the problem is that Herwig (and ThePEG = libraries for Herwig)
cant see libCore.so (I think that the _ZN13TVersionCheckC1Ei is in libCore.so)

Could you please help me to write the right Makefile ( - well, if it is fault of Makefile)
Now I have:

ROOTCFLAGS=`root-config --cflags`                        
ROOTGLIBS=`root-config --glibs`    
ROOTLDFLAGS=`root-config --ldflags`
ROOTLIBS=`root-config --libs`
ROOTEVELIBS=`root-config --evelibs`

ROOT=$(ROOTCFLAGS) $(ROOTGLIBS) $(ROOTLDFLAGS) $(ROOTLIBS) $(ROOTEVELIBS) 

CXX = g++

CXXFLAGS = -g -W -Wall -O3

CPPFLAGS = -I/home/mira/local/Herwig++-2.6.3/include -I/home/mira/local/ThePEG-1.8.3/include -I$(ROOTSYS)/include/root

LDFLAGS = -L$(ROOTSYS)/lib/root -lCore -lTree -lCint -lReflex -lCintex -lRIO -lHist

ALLCCFILES=$(shell echo *.cc)
all : $(ALLCCFILES:.cc=.so)

%.so : %.cc %.h 
	$(CXX) -shared -fPIC $(CPPFLAGS) $(CXXFLAGS) $(LDFLAGS) $(ROOT) $< -o $@  

clean:
	rm -f $(ALLCCFILES:.cc=.so)

Thank you very much in advance!
Mira

2

Hi,

I think it should be:[code]CPPFLAGS = -I/home/mira/local/Herwig+±2.6.3/include -I/home/mira/local/ThePEG-1.8.3/include -I$(ROOTSYS)/include

LDFLAGS = -L$(ROOTSYS)/lib -lCore -lTree -lCint -lReflex -lCintex -lRIO -lHist
[/code]
Instead of:

[code]CPPFLAGS = -I/home/mira/local/Herwig+±2.6.3/include -I/home/mira/local/ThePEG-1.8.3/include -I$(ROOTSYS)/include/root

LDFLAGS = -L$(ROOTSYS)/lib/root -lCore -lTree -lCint -lReflex -lCintex -lRIO -lHist
[/code]
Cheers, Bertrand.

3

Hi,
thank you.
I tried that too - with the same result.
Herwig just do not load libCore.so.

I just tried to ask if you’ve met this problem before.

Feel free to delete this topic.

4

Hi, maybe it is a bit out of topic, but…

How could i set Herwig++ to print more data information in the log file? I need event weights to be printed out…

Thanks.

5

Hi,

You should ask Herwig++ related questions to the Herwig people (herwig.hepforge.org)

Cheers, Bertrand

6

Hi,
indeed, I should delete this topic.
But I have a feeling that Herwig++ has all weights equal 1.