Hi,

> The lines you suspect are not the ones
> quoted in the bug report:

This is due to the “multiply_try" function. This is because of that that I’m not sure which line is responsible for the bug.

> File "/net/hetgfs1/nfs_hetgfs1/mreece/MG5_aMC_v2_5_2/zzj12_xqcut150ht500_clusterA1/bin/internal/misc.py", line 367, in deco_f_retry
>   raise error.__class__, '[Fail %i times] \n %s ' % (i+1, error)
> 
> Shouldn't this line read as follows?
>   raise error.__class__, ‘[Fail %i times] \n %s ' % (i+1, str(error))

I do not think so.

The printout seems to work correctly. So I do not think that this line is problematic.
Also in this case the %s should automatically called the str() function, so this is not required to put str(error).


Cheers,

Olivier
> On Jan 16, 2017, at 15:24, Matthew Reece <email address hidden> wrote:
> 
> Hi Olivier,
> 
> Thanks for replying promptly. The lines you suspect are not the ones
> quoted in the bug report:
> 
> File "/net/hetgfs1/nfs_hetgfs1/mreece/MG5_aMC_v2_5_2/zzj12_xqcut150ht500_clusterA1/bin/internal/misc.py", line 367, in deco_f_retry
>   raise error.__class__, '[Fail %i times] \n %s ' % (i+1, error)
> 
> Shouldn't this line read as follows?
>   raise error.__class__, '[Fail %i times] \n %s ' % (i+1, str(error))
> 
> Elsewhere in the same function you have used str(error) in printing
> output.
> 
> Best,
> 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:
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mg5amcnlo/+bug/1656728/+subscriptions