Hi Alexis,
Thanks,
so I have tried with LHAPDF6 (btw, the SysCalc makefile uses the lhapdf-config which is in the PATH, not the one which is specified via the configuration options)
I get NaNs…
Finished parsing 10000 events.
scale fact cross-section  :0 nan
scale fact cross-section  :1 nan
scale fact cross-section  :2 nan
scale fact cross-section  :3 nan
scale fact cross-section  :4 nan
scale fact cross-section  :5 nan
scale fact cross-section  :6 nan
scale fact cross-section  :7 nan
scale fact cross-section  :8 nan
pdf reweighted cross-section  :0 nan
pdf reweighted cross-section  :1 nan
…
Cheers,

Marco
On 21 Jan 2016, at 11:52, Alexis Kalogeropoulos <email address hidden> wrote:

> Hello
> 
> I cannot reproduce your problem - running in MG5_aMC_v2_3_0 and
> LHAPDF_6.1.5 it works ok for me- Can you maybe try switching to a more
> recent LHAPDF version ?
> 
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1536557
> 
> Title:
>  segfault with syscalc
> 
> Status in MadGraph5_aMC@NLO:
>  New
> 
> Bug description:
>  Hi,
>  I am doing the following:
> 
>  import model heft
>  generate a a > h
>  output
> 
>  then launch and edit the runcard changing:
>       lhapdf     = pdlabel     ! PDF set
>       244600    = lhaid     ! if pdlabel=lhapdf, this is the lhapdf number
>  and
>  NNPDF23_nlo_as_0118_qed.LHgrid = sys_pdf 
> 
>  Events are correctly generated, but syscalc fails.
> 
>> SysCalc Failed. Please read the associate log to see the reason. Did
>  you install the associate PDF set?
> 
>  Looking into the log (Events/run_01/tag_1_parton_syscalc.log) I have
> 
>  Init PDF set NNPDF23_nlo_as_0118_qed.LHgrid
>  Using 101 members for this set
>  read up to orgpdf
>  Set beam info: 1 1
>  Set original PDF = 244600 with member 0
>  Init original PDF 244600
> 
>  If I run syscalc by hand
>  ../SysCalc/sys_calc Events/run_01/events.lhe bin/internal/syscalc_card.dat outfile.txt
> 
>  I get a segmentation fault error (see below)
> 
>  Cheers,
> 
>  Marco
> 
>  Init PDF set NNPDF23_nlo_as_0118_qed.LHgrid
>   *************************************
>   *       LHAPDF Version 5.9.1        *
>   *   Configured for the following:   *
>   *             All PDFs              *
>   *         FULL MEMORY option        *
>   *    Maximum  3 concurrent set(s)   *
>   *************************************
> 
>>>>>>> PDF description: <<<<<<
>   NNPDF23_nlo_as_0118_qed.LHgrid                                  
>   NNPDF2.3QED NLO, arxiv:1308.0598                                
>   NLO QCD + LO QED PDF set, alphas(MZ)=0.118                      
>   NNPDF Collaboration: R.D. Ball, V. Bertone,                     
>   S. Carrazza, L. Del Debbio, S. Forte,                           
>   A. Guffanti, N.P. Hartland, J. Rojo                             
>   This set has          100  member PDF                           
>   mem=0 --> average on replicas.                                  
>   Evolution: pol. interpolation on the LH grid.                   
>>>>>>>                  <<<<<<
> 
>  Using 101 members for this set
>  read up to orgpdf
>  Set beam info: 1 1
>  Set original PDF = 244600 with member 0
>  Init original PDF 244600
>   *************************************
>   *       LHAPDF Version 5.9.1        *
>   *   Configured for the following:   *
>   *             All PDFs              *
>   *         FULL MEMORY option        *
>   *    Maximum  3 concurrent set(s)   *
>   *************************************
> 
>>>>>>> PDF description: <<<<<<
>   NNPDF23_nlo_as_0118_qed.LHgrid                                  
>   NNPDF2.3QED NLO, arxiv:1308.0598                                
>   NLO QCD + LO QED PDF set, alphas(MZ)=0.118                      
>   NNPDF Collaboration: R.D. Ball, V. Bertone,                     
>   S. Carrazza, L. Del Debbio, S. Forte,                           
>   A. Guffanti, N.P. Hartland, J. Rojo                             
>   This set has          100  member PDF                           
>   mem=0 --> average on replicas.                                  
>   Evolution: pol. interpolation on the LH grid.                   
>>>>>>>                  <<<<<<
> 
>  Segmentation fault: 11
> 
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