Avoid LSF emails when running large gridpacks

Hello,

I am trying to edit the cluster.py code, as explained by Olivier in this post,

https://answers.launchpad.net/mg5amcnlo/+question/251681

in order to avoid that the CERN LSF cluster floods me with hundreds of emails when generating complicated processes.
However, as opposite to that user, I am running in gridpack creation mode.

In this mode, the solution proposed by Olivier

"Change:
       if stdout and isinstance(stdout, str):
           command.extend([‘-o', stdout])
by
       if stdout and isinstance(stdout, str):
           command.extend([‘-o', stdout])
       else:
           command.extend([‘-o’, ‘/dev/null’])
and
       if stderr and isinstance(stdout, str):
           command.extend(['-e', stderr])
       elif stderr == -2: # -2 is subprocess.STDOUT
           pass
by
       if stderr and isinstance(stdout, str):
           command.extend(['-e', stderr])
       elif stderr == -2: # -2 is subprocess.STDOUT
           pass
       else:
           command.extend([‘-e’, ‘/dev/null’])
"

does not work for me. The error is:

Working on SubProcesses
    P0_qq_wp_wp_lvl
    P0_qq_wp_wp_tapvl
    P1_qq_wm_wm_lvl
    P1_qq_wm_wm_tamvl
INFO: Idle: 1, Running: 3, Completed: 0 [ 0.18s ]
INFO: Idle: 0, Running: 3, Completed: 1 [ 30.4s ]
INFO: Idle: 0, Running: 3, Completed: 1 [ 1m 0s ]
INFO: Idle: 0, Running: 2, Completed: 2 [ 1m 30s ]
INFO: All jobs finished
Start waiting for update. (more info in debug mode)
Command "generate_events pilotrun" interrupted with error:
IOError : [Fail 5 times]
  [Errno 2] No such file or directory: '/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM
/wellnu01234j_5f_LO_MLM_gridpack/work/processtmp/SubProcesses/P0_qq_wp_wp_lvl/G1/results.dat'
Please report this bug on https://bugs.launchpad.net/madgraph5
More information is found in '/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_
LO_MLM_gridpack/work/processtmp/pilotrun_tag_1_debug.log'.
Please attach this file to your report.

I report here the file processtmp/pilotrun_tag_1_debug.log as suggested in the error

generate_events pilotrun
Traceback (most recent call last):
  File "/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_LO_MLM_gridpack/work/p
rocesstmp/bin/internal/extended_cmd.py", line 879, in onecmd
    return self.onecmd_orig(line, **opt)
  File "/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_LO_MLM_gridpack/work/p
rocesstmp/bin/internal/extended_cmd.py", line 872, in onecmd_orig
    return func(arg, **opt)
  File "/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_LO_MLM_gridpack/work/p
rocesstmp/bin/internal/madevent_interface.py", line 1912, in do_generate_events
    postcmd=False)
  File "/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_LO_MLM_gridpack/work/p
rocesstmp/bin/internal/extended_cmd.py", line 919, in exec_cmd
    stop = Cmd.onecmd_orig(current_interface, line, **opt)
  File "/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_LO_MLM_gridpack/work/p
rocesstmp/bin/internal/extended_cmd.py", line 872, in onecmd_orig
    return func(arg, **opt)
  File "/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_LO_MLM_gridpack/work/p
rocesstmp/bin/internal/madevent_interface.py", line 2374, in do_survey
    cross, error = sum_html.make_all_html_results(self)
  File "/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_LO_MLM_gridpack/work/p
rocesstmp/bin/internal/sum_html.py", line 410, in make_all_html_results
    P_comb.add_results(name, pjoin(P_path,name,'results.dat'), mfactor)
  File "/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_LO_MLM_gridpack/work/p
rocesstmp/bin/internal/sum_html.py", line 131, in add_results
    oneresult.read_results(filepath)
  File "/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu01234j_5f_LO_MLM_gridpack/work/p
rocesstmp/bin/internal/misc.py", line 242, in deco_f_retry
    raise error.__class__, '[Fail %i times] \n %s ' % (i+1, error)
IOError: [Fail 5 times]
 [Errno 2] No such file or directory: '/afs/cern.ch/work/c/covarell/mg5_amcatnlo/zz1jet-offshell-8TeV/genproductions/bin/MadGraph5_aMCatNLO/wellnu01234j_5f_LO_MLM/wellnu0
1234j_5f_LO_MLM_gridpack/work/processtmp/SubProcesses/P0_qq_wp_wp_lvl/G1/results.dat'