Installing LHAPDF and linking with MadGraph

Hi,

I do not spot anything deeply wrong here.

So I have quite low level comment to offer:
1) Is:
> /LHAPDF installation path/LHAPDF-6.5.3/bin/lhapdf-config
exists/

2) is that file executable
3) what is happening when running that file.
(it should print a couple of informtion normally)

Cheers,

Olivier

> On 8 Mar 2023, at 21:45, Tanvi Wamorkar <email address hidden> wrote:
>
> New question #705765 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/705765
>
> Dear MadGraph Experts,
>
> I'm trying to use the "MSTWnlo2008" LHAPDF with MadGraph v3.4.2 but am facing issues with setting the lhapdf parameter in the MG input configuration file (MG5_aMC_v3_4_2/input/mg5_configuration.txt).
>
> Here are the steps I followed to install LHAPDF:
>
> 1. Follow the instructions here (https://lhapdf.hepforge.org/install.html) and install LHAPDF-6.5.3 :
> wget https://lhapdf.hepforge.org/downloads/?f=LHAPDF-6.5.3.tar.gz -O LHAPDF-6.5.3.tar.gz
> tar xf LHAPDF-6.5.3.tar.gz
> cd LHAPDF-6.5.3
> ./configure --prefix=/installation_path/
> make
> make install
>
> This step finishes successfully
>
> 2. Download PDF set "MSTWnlo2008" (https://lhapdf.hepforge.org/pdfsets.html) and place it in the LHAPDF-6.5.3 base directory.
>
> 3. In the MG configuration file (MG5_aMC_v3_4_2/input/mg5_configuration.txt), I add:
> lhapdf = /LHAPDF installation path/LHAPDF-6.5.3/bin/lhapdf-config
>
> 4. In my .bashrc file I add the lines:
> export PATH= /LHAPDF installation path/LHAPDF-6.5.3/bin:$PATH
> export LD_LIBRARY_PATH=/LHAPDF installation path/LHAPDF-6.5.3/lib:$LD_LIBRARY_PATH
> export LHAPDF_DATA_PATH=/LHAPDF installation path/LHAPDF-6.5.3/MSTW2008nlo68cl:$LHAPDF_DATA_PATH
>
> Then, when I run MadGraph with the command ./bin/mg5_aMC I run into the error ""/LHAPDF installation path/LHAPDF-6.5.3/bin/lhapdf-config does not seem to correspond to a valid lhapdf-config executable.""
>
> Could you please point out if I am making a mistake in the installation procedure?
>
> Thank you,
> Tanvi
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Hi Olivier,

Thank you for your reply.

1. Yes, the lhapdf-config file exists.

2. It is an executable.

3. On running it, the following message is printed:

lhapdf-config: configuration tool for the LHAPDF
               parton density function evolution library
               http://projects.hepforge.org/lhapdf/

Usage: lhapdf-config [options]
Options:
  --help | -h : show this help message
  --prefix : show the installation prefix (cf. autoconf)
  --incdir : show the path to the LHAPDF C++ header directory
  --libdir : show the path to the LHAPDF library directory
  --datadir : show the path to the LHAPDF data directory

  --cxx : get compiler (including -std=c++11 flag or equiv)
  --cflags : get compiler flags (aka --cppflags|--cxxflags)
  --libs : get linker flags (aka --ldflags)

  --version : return LHAPDF release version number

I realised that the datadir was not set to the correct path, and on fixing that I am able to get past the previous error.

But now, I run into the following:
"Command "launch auto " interrupted with error:
FileNotFoundError : [Errno 2] No such file or directory: '/lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/SubProcesses/P0_uux_wpzwm/test_ME.log'"

The entire message dump is here:

launch PROCNLO_loop_sm_1
INFO: ************************************************************
* *
* W E L C O M E to M A D G R A P H 5 *
* a M C @ N L O *
* *
* * * *
* * * * * *
* * * * * 5 * * * * *
* * * * * *
* * * *
* *
* VERSION 3.4.2 2023-01-20 *
* *
* The MadGraph5_aMC@NLO Development Team - Find us at *
* http://amcatnlo.cern.ch *
* *
* Type 'help' for in-line help. *
* *
************************************************************
INFO: load configuration from /lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/Cards/amcatnlo_configuration.txt
INFO: load configuration from /lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/input/mg5_configuration.txt
INFO: load configuration from /lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/Cards/amcatnlo_configuration.txt
Using default text editor "vi". Set another one in ./input/mg5_configuration.txt
No valid web browser found. Please set in ./input/mg5_configuration.txt
launch auto
run_card missed argument time_of_flight. Takes default: -1.0
run_card missed argument pt_min_pdg. Takes default: {}
run_card missed argument pt_max_pdg. Takes default: {}
run_card missed argument mxx_min_pdg. Takes default: {}
The following switches determine which programs are run:
/================== Description ===================|================= values =================|========== other options ===========\
| 1. Type of perturbative computation | order = NLO | LO |
| 2. No MC@[N]LO matching / event generation | fixed_order = OFF | ON |
| 3. Shower the generated events | shower = OFF | PYTHIA6Q|PYTHIA6PT|HERWIG6 |
| 4. Decay onshell particles | madspin = OFF | ON|onshell |
| 5. Add weights to events for new hypp. | reweight = OFF | ON|NLO|NLO_TREE|LO |
| 6. Run MadAnalysis5 on the events generated | madanalysis = Not Avail | Please install module |
\==================================================================================================================================/
Either type the switch number (1 to 6) to change its setting,
Set any switch explicitly (e.g. type 'order=LO' at the prompt)
Type 'help' for the list of all valid option
Type '0', 'auto', 'done' or just press enter when you are done.[60s to answer]
>order=LO
The following switches determine which programs are run:
/================== Description ===================|================= values =================|========== other options ===========\
| 1. Type of perturbative computation | order = LO | NLO |
| 2. No MC@[N]LO matching / event generation | fixed_order = OFF | ON |
| 3. Shower the generated events | shower = OFF | PYTHIA6Q|PYTHIA6PT|HERWIG6 |
| 4. Decay onshell particles | madspin = OFF | ON|onshell |
| 5. Add weights to events for new hypp. | reweight = OFF | ON|NLO|NLO_TREE|LO |
| 6. Run MadAnalysis5 on the events generated | madanalysis = Not Avail | Please install module |
\==================================================================================================================================/
Either type the switch number (1 to 6) to change its setting,
Set any switch explicitly (e.g. type 'order=NLO' at the prompt)
Type 'help' for the list of all valid option
Type '0', 'auto', 'done' or just press enter when you are done.
>0
INFO: will run in mode: noshowerLO
run_card missed argument time_of_flight. Takes default: -1.0
run_card missed argument pt_min_pdg. Takes default: {}
run_card missed argument pt_max_pdg. Takes default: {}
run_card missed argument mxx_min_pdg. Takes default: {}
Do you want to edit a card (press enter to bypass editing)?
/------------------------------------------------------------\
| 1. param : param_card.dat |
| 2. run : run_card.dat |
\------------------------------------------------------------/
 you can also
   - enter the path to a valid card or banner.
   - use the 'set' command to modify a parameter directly.
     The set option works only for param_card and run_card.
     Type 'help set' for more information on this command.
   - call an external program (ASperGE/MadWidth/...).
     Type 'help' for the list of available command
 [0, done, 1, param, 2, run, enter path][90s to answer]
>0
INFO: Update the dependent parameter of the param_card.dat
WARNING: update the strong coupling value (alpha_s) to the value from the pdf selected: 0.1201789
run_card missed argument time_of_flight. Takes default: -1.0
run_card missed argument pt_min_pdg. Takes default: {}
run_card missed argument pt_max_pdg. Takes default: {}
run_card missed argument mxx_min_pdg. Takes default: {}
INFO: Starting run
Not able to open file /lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/crossx.html since no program configured.Please set one in ./input/mg5_configuration.txt
INFO: Compiling the code
run_card missed argument time_of_flight. Takes default: -1.0
run_card missed argument pt_min_pdg. Takes default: {}
run_card missed argument pt_max_pdg. Takes default: {}
run_card missed argument mxx_min_pdg. Takes default: {}
run_card missed argument shower_scale_factor. Takes default: 1.0
run_card missed argument muf_ref_fixed. Takes default: 91.188
run_card missed argument dynamical_scale_choice. Takes default: [-1]
run_card missed argument muf_over_ref. Takes default: 1.0
run_card missed argument rw_rscale. Takes default: [1.0, 2.0, 0.5]
run_card missed argument rw_fscale. Takes default: [1.0, 2.0, 0.5]
run_card missed argument store_rwgt_info. Takes default: False
run_card missed argument gamma_is_j. Takes default: True
run_card missed argument rphreco. Takes default: 0.1
run_card missed argument etaphreco. Takes default: -1.0
run_card missed argument lepphreco. Takes default: True
run_card missed argument quarkphreco. Takes default: True
run_card missed argument pineappl. Takes default: False
INFO: Using LHAPDF v6.5.3 interface for PDFs
INFO: Compiling source...
INFO: ...done, continuing with P* directories
INFO: Compiling directories...
INFO: Compiling on 36 cores
INFO: Compiling P0_uux_wpzwm...
INFO: Compiling P0_ddx_wpzwm...
INFO: Compiling P0_uxu_wpzwm...
INFO: Compiling P0_dxd_wpzwm...
WARNING: fct <function compile_dir at 0x2b9afb1245e0> does not return 0. Stopping the code in a clean way. The error was:
A compilation Error occurs when trying to compile /lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/SubProcesses/P0_ddx_wpzwm.
The compilation fails with the following output message:
    gfortran -O -fno-automatic -ffixed-line-length-132 -c -I. -I../../lib/ parton_lum_1.f
    parton_lum_1.f:55: Error: Can't open included file 'eepdf.inc'
    make: *** [parton_lum_1.o] Error 1

Please try to fix this compilations issue and retry.
Help might be found at https://answers.launchpad.net/mg5amcnlo.
If you think that this is a bug, you can report this at https://bugs.launchpad.net/mg5amcnlo
WARNING: fct <function compile_dir at 0x2b9afb1245e0> does not return 0. Stopping the code in a clean way. The error was:
A compilation Error occurs when trying to compile /lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/SubProcesses/P0_dxd_wpzwm.
The compilation fails with the following output message:
    gfortran -O -fno-automatic -ffixed-line-length-132 -c -I. -I../../lib/ parton_lum_1.f
    parton_lum_1.f:55: Error: Can't open included file 'eepdf.inc'
    make: *** [parton_lum_1.o] Error 1

Please try to fix this compilations issue and retry.
Help might be found at https://answers.launchpad.net/mg5amcnlo.
If you think that this is a bug, you can report this at https://bugs.launchpad.net/mg5amcnlo
WARNING: fct <function compile_dir at 0x2b9afb1245e0> does not return 0. Stopping the code in a clean way. The error was:
A compilation Error occurs when trying to compile /lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/SubProcesses/P0_uux_wpzwm.
The compilation fails with the following output message:
    gfortran -O -fno-automatic -ffixed-line-length-132 -c -I. -I../../lib/ parton_lum_1.f
    parton_lum_1.f:55: Error: Can't open included file 'eepdf.inc'
    make: *** [parton_lum_1.o] Error 1

Please try to fix this compilations issue and retry.
Help might be found at https://answers.launchpad.net/mg5amcnlo.
If you think that this is a bug, you can report this at https://bugs.launchpad.net/mg5amcnlo
WARNING: fct <function compile_dir at 0x2b9afb1245e0> does not return 0. Stopping the code in a clean way. The error was:
A compilation Error occurs when trying to compile /lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/SubProcesses/P0_uxu_wpzwm.
The compilation fails with the following output message:
    gfortran -O -fno-automatic -ffixed-line-length-132 -c -I. -I../../lib/ parton_lum_1.f
    parton_lum_1.f:55: Error: Can't open included file 'eepdf.inc'
    make: *** [parton_lum_1.o] Error 1

Please try to fix this compilations issue and retry.
Help might be found at https://answers.launchpad.net/mg5amcnlo.
If you think that this is a bug, you can report this at https://bugs.launchpad.net/mg5amcnlo
WARNING: Compilation of the Subprocesses failed
INFO:
INFO: Checking test output:
INFO: P0_uux_wpzwm
INFO: Result for test_ME:
Command "launch auto " interrupted with error:
FileNotFoundError : [Errno 2] No such file or directory: '/lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/SubProcesses/P0_uux_wpzwm/test_ME.log'

Hi Olivier,

I wanted to touch base again. I actually checked and the file "eepdf.inc" does exist, so I am not sure of the cause of this error. Any hints to debug this more would be very helpful.

Thank you,
Tanvi

That's weird .

Is it present here:
/lcrc/group/ATLAS/users/twamorkar/MG5_aMC_v3_4_2/PROCNLO_loop_sm_1/SubProcesses/P0_uxu_wpzwm/eepdf.inc
which type of filesystem is this?

Does symlink can create issue on such system? Is it based on a local cache?
Maybe this is an filesystem issue?

Olivier