MadGraph5_aMC@NLO

pythia8 interface

Bug #1517186 reported by Keping Xie on 2015-11-17

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	MadGraph5_aMC@NLO	Invalid	Undecided	Paolo Torrielli

Bug Description

I want to do the calculation of "p p > b b~ [QCD]", and interface MadGraph with Pythia8 to get the B-meson information.
I have installed pythia8 successfully configured with HepMC2, LHAPDF6, ROOT, Fastjet3.

However, when I launch pp_bbx_QCD, and choose
PYTHIA8 = parton_shower

It gives me error message:
/users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::symbol(std::string)':
PartonDistributions.cc:(.text+0xe6c0): undefined reference to `dlerror'
PartonDistributions.cc:(.text+0xe6cc): undefined reference to `dlsym'
PartonDistributions.cc:(.text+0xe6d4): undefined refePythia8 compilation did not succeed, exiting
ext+0xe782): undefined reference to `dlerror'
PartonDistributions.cc:(.text+0xe7ad): undefined reference to `dlopen'
PartonDistributions.cc:(.text+0xe7b5): undefined reference to `dlerror'
/users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::~LHAPDF()':
PartonDistributions.cc:(.text+0xfaea): undefined reference to `dlclose'
PartonDistributions.cc:(.text+0xfaf1): undefined reference to `dlerror'
collect2: error: ld returned 1 exit status
make: *** [Pythia82] Error 1

So, how can interface MadGraph_aMC@NLO correctly with Pythia8?

Revision history for this message

Keping Xie (kepingx) wrote on 2015-11-17:

run_21_tag_1_debug.log Edit (4.2 KiB, text/plain)

Olivier Mattelaer (olivier-mattelaer) on 2015-11-17

Changed in mg5amcnlo:
assignee:	nobody → Paolo Torrielli (paolo-torrielli)

Revision history for this message

Paolo Torrielli (paolo-torrielli) wrote on 2015-11-18:

Hello,
the problem should be that the code does not find library dl.
If you have this library on your system, you just need to add
it to the shower_card.dat, see the following thread

https://bugs.launchpad.net/mg5amcnlo/+bug/1469222

Anyway, this has been fixed automatically in the latest release
of the code.

Cheers.
Paolo

Revision history for this message

Keping Xie (kepingx) wrote on 2015-11-19:

run_24_tag_1_debug.log Edit (19.6 KiB, text/plain)

Hi Paolo,

As you suggest, I edit the shower_card.dat as
EXTRALIBS = dl

And I also tried the Luca's suggestion, add the flag "-ldl" in Makefile and Makefile_hep.
It seems that the library problem is solved, but another problem appear, showing as
IOError: [Errno 2] No such file or directory: '/users/kepingx/MG5_aMC_v2_3_2_2/pp_bbx_QCD/MCatNLO/RUN_PYTHIA8_3/events.hepmc.gz'

I have set the path to pythia8 and hepmc in the "input/mg5_configuration.txt".

So, what do you think of this error?

Best regards!
Keping

Revision history for this message

Paolo Torrielli (paolo-torrielli) wrote on 2015-11-19: Re: [Bug 1517186] pythia8 interface

Download full text (3.3 KiB)

Hi Keping,

I guess setting dl in the shower_card without changing the
makefiles should be enough. Anyway, good that this part of
the problem is solved.

For the other part, this seem to be related to something
going wrong during the shower itself, i.e. could you confirm
this error message is issued after Pythia8 has started
showering?

In this case, you could go inside RUN_PYTHIA8_3 and check
mcatnlo_run.log, which is the event record, and there you
should find some more indication. It would be useful if
you could attach mcatnlo_run.log and shower card.dat to
your next post both.

Another suggestion is to use version 2.3.3 of the MG5_aMC
code, since there, for example, the dl problem is already
solved.
Moreover, it is not necessary to set the hepmc path in
the mg5 configuration file, as pythia knows it already.
Finally, just to be sure, is the first line of your event
file equal to the following?
<LesHouchesEvents version="3.0”>

Cheers,
Paolo

On 19 Nov 2015, at 06:15, Keping Xie <email address hidden> wrote:

> Hi Paolo,
>
> As you suggest, I edit the shower_card.dat as
> EXTRALIBS = dl
>
> And I also tried the Luca's suggestion, add the flag "-ldl" in Makefile and Makefile_hep.
> It seems that the library problem is solved, but another problem appear, showing as
> IOError: [Errno 2] No such file or directory: '/users/kepingx/MG5_aMC_v2_3_2_2/pp_bbx_QCD/MCatNLO/RUN_PYTHIA8_3/events.hepmc.gz'
>
> I have set the path to pythia8 and hepmc in the
> "input/mg5_configuration.txt".
>
> So, what do you think of this error?
>
> Best regards!
> Keping
>
> ** Attachment added: "run_24_tag_1_debug.log"
> https://bugs.launchpad.net/mg5amcnlo/+bug/1517186/+attachment/4521704/+files/run_24_tag_1_debug.log
>
> --
> You received this bug notification because you are a bug assignee.
> https://bugs.launchpad.net/bugs/1517186
>
> Title:
> pythia8 interface
>
> Status in MadGraph5_aMC@NLO:
> New
>
> Bug description:
> I want to do the calculation of "p p > b b~ [QCD]", and interface MadGraph with Pythia8 to get the B-meson information.
> I have installed pythia8 successfully configured with HepMC2, LHAPDF6, ROOT, Fastjet3.
>
> However, when I launch pp_bbx_QCD, and choose
> PYTHIA8 = parton_shower
>
> It gives me error message:
> /users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::symbol(std::string)':
> PartonDistributions.cc:(.text+0xe6c0): undefined reference to `dlerror'
> PartonDistributions.cc:(.text+0xe6cc): undefined reference to `dlsym'
> PartonDistributions.cc:(.text+0xe6d4): undefined refePythia8 compilation did not succeed, exiting
> ext+0xe782): undefined reference to `dlerror'
> PartonDistributions.cc:(.text+0xe7ad): undefined reference to `dlopen'
> PartonDistributions.cc:(.text+0xe7b5): undefined reference to `dlerror'
> /users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::~LHAPDF()':
> PartonDistributions.cc:(.text+0xfaea): undefined reference to `dlclose'
> PartonDistributions.cc:(.text+0xfaf1): undefined reference to `dlerror'
> collect2: error: ld returned 1 exit status
> make: *** [Pythia82] Error 1
>
> ...

Hi Keping,

I guess setting dl in the shower_card without changing the
makefiles should be enough. Anyway, good that this part of
the problem is solved.

For the other part, this seem to be related to something
going wrong during the shower itself, i.e. could you confirm
this error message is issued after Pythia8 has started
showering?

Cheers,
Paolo

On 19 Nov 2015, at 06:15, Keping Xie <kepingx@smu.edu> wrote:

> Hi Paolo,
> 
> As you suggest, I edit the shower_card.dat as
> EXTRALIBS = dl
> 
> And I also tried the Luca's suggestion, add the flag "-ldl" in Makefile and Makefile_hep.
> It seems that the library problem is solved, but another problem appear, showing as 
> IOError: [Errno 2] No such file or directory: '/users/kepingx/MG5_aMC_v2_3_2_2/pp_bbx_QCD/MCatNLO/RUN_PYTHIA8_3/events.hepmc.gz'
> 
> I have set the path to pythia8 and hepmc in the
> "input/mg5_configuration.txt".
> 
> So, what do you think of this error?
> 
> Best regards!
> Keping
> 
> ** Attachment added: "run_24_tag_1_debug.log"
>   https://bugs.launchpad.net/mg5amcnlo/+bug/1517186/+attachment/4521704/+files/run_24_tag_1_debug.log
> 
> -- 
> You received this bug notification because you are a bug assignee.
> https://bugs.launchpad.net/bugs/1517186
> 
> Title:
>  pythia8 interface
> 
> Status in MadGraph5_aMC@NLO:
>  New
> 
> Bug description:
>  I want to do the calculation of "p p > b b~ [QCD]", and interface MadGraph with Pythia8 to get the B-meson information.
>  I have installed pythia8 successfully configured with HepMC2, LHAPDF6, ROOT, Fastjet3.
> 
>  However, when I launch pp_bbx_QCD, and choose 
>    PYTHIA8       =  parton_shower
> 
>  It gives me error message:
>  /users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::symbol(std::string)':
>  PartonDistributions.cc:(.text+0xe6c0): undefined reference to `dlerror'
>  PartonDistributions.cc:(.text+0xe6cc): undefined reference to `dlsym'
>  PartonDistributions.cc:(.text+0xe6d4): undefined refePythia8 compilation did not succeed, exiting
>  ext+0xe782): undefined reference to `dlerror'
>  PartonDistributions.cc:(.text+0xe7ad): undefined reference to `dlopen'
>  PartonDistributions.cc:(.text+0xe7b5): undefined reference to `dlerror'
>  /users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::~LHAPDF()':
>  PartonDistributions.cc:(.text+0xfaea): undefined reference to `dlclose'
>  PartonDistributions.cc:(.text+0xfaf1): undefined reference to `dlerror'
>  collect2: error: ld returned 1 exit status
>  make: *** [Pythia82] Error 1
> 
>  So, how can interface MadGraph_aMC@NLO correctly with Pythia8?
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mg5amcnlo/+bug/1517186/+subscriptions

Revision history for this message

Keping Xie (kepingx) wrote on 2015-11-19:

shower_card.dat Edit (434 bytes, application/x-ns-proxy-autoconfig)

Hi Paolo,

The first line of events.lhe is indeed
<LesHouchesEvents version="3.0">

As you suggest, the mcatnol.log shows
./Pythia8.exe: error while loading shared libraries: libHepMC.so.4: cannot open shared object file: No such file or directory

I have installed the latest version, pythia8212, configured with hepmc2 through commands
./configure --prefix=/users/kepingx/share/pythia8 --with-hepmc2=/users/kepingx/share/HepMC --with-root=/grid/software/ROOT/5.34.26/gcc-4.8 --with-lhapdf6=/users/kepingx/share/LHAPDF --with-fastjet3=/users/kepingx/share/fastjet --with-hepmc2-lib=/users/kepingx/share/HepMC/lib
As the libHepMC.so.4 is located in my "HepMC/lib" directory, I added the option
--with-hepmc2-lib=/users/kepingx/share/HepMC/lib
when installing pythia8.

The shower_cart.dat is located in the attachment.

Best regards!
Keping

Revision history for this message

Paolo Torrielli (paolo-torrielli) wrote on 2015-11-19:

Hi Keping,
OK, now you could try and see this thread, very similar to yours.

https://answers.launchpad.net/mg5amcnlo/+question/271396

In particular, comment #11 by Marco was the solution of that thread.
Let me know if it works in your case as well.
Cheers.
Paolo

On 19 Nov 2015, at 14:14, Keping Xie <email address hidden> wrote:

> Hi Paolo,
>
> The first line of events.lhe is indeed
> <LesHouchesEvents version="3.0">
>
> As you suggest, the mcatnol.log shows
> ./Pythia8.exe: error while loading shared libraries: libHepMC.so.4: cannot open shared object file: No such file or directory
>
> I have installed the latest version, pythia8212, configured with hepmc2 through commands
> ./configure --prefix=/users/kepingx/share/pythia8 --with-hepmc2=/users/kepingx/share/HepMC --with-root=/grid/software/ROOT/5.34.26/gcc-4.8 --with-lhapdf6=/users/kepingx/share/LHAPDF --with-fastjet3=/users/kepingx/share/fastjet --with-hepmc2-lib=/users/kepingx/share/HepMC/lib
> As the libHepMC.so.4 is located in my "HepMC/lib" directory, I added the option
> --with-hepmc2-lib=/users/kepingx/share/HepMC/lib
> when installing pythia8.
>
> The shower_cart.dat is located in the attachment.
>
> Best regards!
> Keping
>
>
>
> ** Attachment added: "shower_card.dat"
> https://bugs.launchpad.net/mg5amcnlo/+bug/1517186/+attachment/4522048/+files/shower_card.dat
>
> --
> You received this bug notification because you are a bug assignee.
> https://bugs.launchpad.net/bugs/1517186
>
> Title:
> pythia8 interface
>
> Status in MadGraph5_aMC@NLO:
> New
>
> Bug description:
> I want to do the calculation of "p p > b b~ [QCD]", and interface MadGraph with Pythia8 to get the B-meson information.
> I have installed pythia8 successfully configured with HepMC2, LHAPDF6, ROOT, Fastjet3.
>
> However, when I launch pp_bbx_QCD, and choose
> PYTHIA8 = parton_shower
>
> It gives me error message:
> /users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::symbol(std::string)':
> PartonDistributions.cc:(.text+0xe6c0): undefined reference to `dlerror'
> PartonDistributions.cc:(.text+0xe6cc): undefined reference to `dlsym'
> PartonDistributions.cc:(.text+0xe6d4): undefined refePythia8 compilation did not succeed, exiting
> ext+0xe782): undefined reference to `dlerror'
> PartonDistributions.cc:(.text+0xe7ad): undefined reference to `dlopen'
> PartonDistributions.cc:(.text+0xe7b5): undefined reference to `dlerror'
> /users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::~LHAPDF()':
> PartonDistributions.cc:(.text+0xfaea): undefined reference to `dlclose'
> PartonDistributions.cc:(.text+0xfaf1): undefined reference to `dlerror'
> collect2: error: ld returned 1 exit status
> make: *** [Pythia82] Error 1
>
> So, how can interface MadGraph_aMC@NLO correctly with Pythia8?
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mg5amcnlo/+bug/1517186/+subscriptions

Hi Keping,
OK, now you could try and see this thread, very similar to yours.

https://answers.launchpad.net/mg5amcnlo/+question/271396

In particular, comment #11 by Marco was the solution of that thread.
Let me know if it works in your case as well.
Cheers.
Paolo

On 19 Nov 2015, at 14:14, Keping Xie <kepingx@smu.edu> wrote:

> Hi Paolo,
> 
> The first line of events.lhe is indeed 
> <LesHouchesEvents version="3.0">
> 
> As you suggest, the mcatnol.log shows 
> ./Pythia8.exe: error while loading shared libraries: libHepMC.so.4: cannot open shared object file: No such file or directory
> 
> I have installed the latest version, pythia8212, configured with hepmc2 through commands
> ./configure --prefix=/users/kepingx/share/pythia8 --with-hepmc2=/users/kepingx/share/HepMC --with-root=/grid/software/ROOT/5.34.26/gcc-4.8 --with-lhapdf6=/users/kepingx/share/LHAPDF --with-fastjet3=/users/kepingx/share/fastjet --with-hepmc2-lib=/users/kepingx/share/HepMC/lib
> As the libHepMC.so.4 is located in my "HepMC/lib" directory, I added the option
> --with-hepmc2-lib=/users/kepingx/share/HepMC/lib
> when installing pythia8.
> 
> The shower_cart.dat is located in the attachment.
> 
> Best regards!
> Keping
> 
> 
> 
> ** Attachment added: "shower_card.dat"
>   https://bugs.launchpad.net/mg5amcnlo/+bug/1517186/+attachment/4522048/+files/shower_card.dat
> 
> -- 
> You received this bug notification because you are a bug assignee.
> https://bugs.launchpad.net/bugs/1517186
> 
> Title:
>  pythia8 interface
> 
> Status in MadGraph5_aMC@NLO:
>  New
> 
> Bug description:
>  I want to do the calculation of "p p > b b~ [QCD]", and interface MadGraph with Pythia8 to get the B-meson information.
>  I have installed pythia8 successfully configured with HepMC2, LHAPDF6, ROOT, Fastjet3.
> 
>  However, when I launch pp_bbx_QCD, and choose 
>    PYTHIA8       =  parton_shower
> 
>  It gives me error message:
>  /users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::symbol(std::string)':
>  PartonDistributions.cc:(.text+0xe6c0): undefined reference to `dlerror'
>  PartonDistributions.cc:(.text+0xe6cc): undefined reference to `dlsym'
>  PartonDistributions.cc:(.text+0xe6d4): undefined refePythia8 compilation did not succeed, exiting
>  ext+0xe782): undefined reference to `dlerror'
>  PartonDistributions.cc:(.text+0xe7ad): undefined reference to `dlopen'
>  PartonDistributions.cc:(.text+0xe7b5): undefined reference to `dlerror'
>  /users/kepingx/share/pythia8/lib/libpythia8.a(PartonDistributions.o): In function `Pythia8::LHAPDF::~LHAPDF()':
>  PartonDistributions.cc:(.text+0xfaea): undefined reference to `dlclose'
>  PartonDistributions.cc:(.text+0xfaf1): undefined reference to `dlerror'
>  collect2: error: ld returned 1 exit status
>  make: *** [Pythia82] Error 1
> 
>  So, how can interface MadGraph_aMC@NLO correctly with Pythia8?
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mg5amcnlo/+bug/1517186/+subscriptions

Olivier Mattelaer (olivier-mattelaer) on 2016-01-13

Changed in mg5amcnlo:
status:	New → Incomplete

Olivier Mattelaer (olivier-mattelaer) on 2016-01-27

Changed in mg5amcnlo:
status:	Incomplete → Invalid

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