Comment 8 for bug 1656728

Hi,

then you can set in the run_card
none = systematic_program

This will remove the computation of the systematics.

Cheers,

Olivier

> On Jan 17, 2017, at 06:09, Matthew Reece <email address hidden> wrote:
>
> I'm still confused about exactly what is happening in the runs that
> fail, but by disabling LHAPDF, I was able to successfully run on our
> cluster with the modification I made to cluster.py. It is unclear to me
> if the error reflects something problematic about my LHAPDF installation
> or is a side effect of my modification to cluster.py. (I have
> successfully run some simpler processes, like p p > t t~, with LHAPDF
> turned on, so it doesn't always fail.)
>
> In any case, I can get by without the systematics information, so I
> guess my current setup is good enough for now.
>
> Thanks for your help.
>
> Matt
>
> --
> You received this bug notification because you are subscribed to
> MadGraph5_aMC@NLO.
> https://bugs.launchpad.net/bugs/1656728
>
> Title:
> "cannot concatenate" error at end of run
>
> Status in MadGraph5_aMC@NLO:
> New
>
> Bug description:
> I am trying to run MadGraph on Harvard's Odyssey cluster, which uses slurm. First I tried to do this by editing the me5_configuration.txt file:
> cluster_type = slurm
> cluster_queue = serial_requeue
> cluster_size = 50
>
> Every attempt failed, probably because Odyssey's default memory and
> time allocations are too low for all of the subprocesses to finish. I
> can't find a way to change these in MadGraph without editing the code
> directly, so I modified the call to sbatch in cluster.py:
>
> command = ['sbatch', '-o', stdout,
> '-J', me_dir,
> '-e', stderr,
> '--mem=2500',
> '-t', '150', prog] + argument
>
> After this change, all of the running seems to proceed smoothly until
> the very end, when I get the output below. (The run_01_tag_1_debug.log
> is attached.)
>
> There are events in Events/run_01/unweighted_events.lhe.gz. Should I
> be able to use them without problems, since the crash occurred after
> the Results Summary appeared? Was the error message caused by the
> change I made to cluster.py, which I thought was innocuous (and which
> was absolutely necessary for MadGraph to even get through the refine
> stage at all on our cluster)?
>
>
>
> INFO: Combining Events
> === Results Summary for run: run_01 tag: tag_1 ===
>
> Cross-section : 4.025 +- 0.003022 pb
> Nb of events : 50000
>
> INFO: Running Systematics computation
> INFO: Trying to download NNPDF23_lo_as_0130_qed
> NNPDF23_lo_as_0130_qed.tar.gz: 26.3 MB [100.0%]
> INFO: NNPDF23_lo_as_0130_qed successfully downloaded and stored in /n/hetgfs1/mreece/share/LHAPDF
> WARNING: cluster.get_job_identifier runs unexpectedly. This should be fine but report this message if you have problem.
> Start waiting for update. (more info in debug mode)
> WARNING: cluster.get_job_identifier runs unexpectedly. This should be fine but report this message if you have problem.
> WARNING: cluster.get_job_identifier runs unexpectedly. This should be fine but report this message if you have problem.
> WARNING: cluster.get_job_identifier runs unexpectedly. This should be fine but report this message if you have problem.
> WARNING: cluster.get_job_identifier runs unexpectedly. This should be fine but report this message if you have problem.
> Command "generate_events " interrupted with error:
> TypeError : [Fail 5 times]
> cannot concatenate 'str' and 'NoneType' objects
> Please report this bug on https://bugs.launchpad.net/mg5amcnlo
> More information is found in '/net/hetgfs1/nfs_hetgfs1/mreece/MG5_aMC_v2_5_2/zzj12_xqcut150ht500_clusterA1/run_01_tag_1_debug.log'.
> Please attach this file to your report.
> quit
> INFO: storing files of previous run
> INFO: Done
> INFO:
>
> INFO:
>
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