Command "generate_events test" interrupted with error: InvalidCmd : No file file pythia_events.hep currently available

Hi,

It means that pythia6 crashes.
You can look at the pythia log to get the reason of such crash.
My guess is that pythia6 is not able to shower events with W/Z in the initial state.

Additionally, running a detector simulation on such events, does not really make sense to me, since your events is (I guess) incomplete and therefore require at minima a boost before passing to detector simulation.

Cheers,

Olivier
> On Sep 5, 2016, at 05:42, Hemang <email address hidden> wrote:
>
> New question #381234 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/381234
>
> I generated the process w+ z > t b~ n1 n1~ and when I try to generate events I get the following output
>
> Generating 10000 events with run name test
> survey test
> INFO: compile directory
> compile Source Directory
> Using random number seed offset = 30
> INFO: Running Survey
> Creating Jobs
> Working on SubProcesses
> INFO: P1_wpz_tbxn1n1x
> INFO: Idle: 1, Running: 1, Completed: 0 [ current time: 00h59 ]
> INFO: Idle: 0, Running: 0, Completed: 2 [ 1.8s ]
> INFO: Idle: 0, Running: 0, Completed: 2 [ 1.8s ]
> INFO: End survey
> refine 10000
> Creating Jobs
> INFO: Refine results to 10000
> INFO: Generating 10000.0 unweigthed events.
> INFO: Effective Luminosity 67026024088.2 pb^-1
> INFO: need to improve 2 channels
> Current estimate of cross-section: 1.79034937e-07 +- 2.21282025433e-09
> P1_wpz_tbxn1n1x
> INFO: Idle: 5, Running: 8, Completed: 0 [ current time: 00h59 ]
> INFO: Idle: 1, Running: 8, Completed: 4 [ 3s ]
> INFO: Idle: 0, Running: 4, Completed: 9 [ 6.1s ]
> INFO: Idle: 0, Running: 0, Completed: 13 [ 7.1s ]
> INFO: Combining runs
> INFO: finish refine
> refine 10000
> Creating Jobs
> INFO: Refine results to 10000
> INFO: Generating 10000.0 unweigthed events.
> INFO: Effective Luminosity 66508916016.2 pb^-1
> INFO: need to improve 0 channels
> Current estimate of cross-section: 1.80426937e-07 +- 4.96680500178e-10
> P1_wpz_tbxn1n1x
> INFO: Idle: 0, Running: 0, Completed: 0 [ current time: 01h00 ]
> INFO: Combining runs
> INFO: finish refine
> combine_events
> INFO: Combining Events
> === Results Summary for run: test tag: tag_2 ===
>
> Cross-section : 1.804e-07 +- 4.967e-10 pb
> Nb of events : 10000
>
> store_events
> INFO: Storing parton level results
> INFO: End Parton
> reweight -from_cards
> decay_events -from_cards
> INFO: Running Pythia
> INFO: Creating shower LHE File (for plot)
> INFO: Warning! Never use this lhe file for detector studies!
> INFO: finish
> INFO: No pgs_card detected, so not run pgs
> INFO: syntax: pgs [RUN] [--run_options]
> INFO: -- run pgs on RUN (current one by default)
> -- local options:
> -f : answer all question by default
> --tag= : define the tag for the pgs run
> --no_default : not run if pgs_card not present
> -- session options:
> Note that those options will be kept for the current session
> --cluster : Submit to the cluster. Current cluster: condor
> --multicore : Run in multi-core configuration
> --nb_core=X : limit the number of core to use to X.
> Command "generate_events test" interrupted with error:
> InvalidCmd : No file file pythia_events.hep currently available
> Please specify a valid run_name
> quit
> INFO: storring files of previous run
> INFO: Storing Pythia files of previous run
> INFO:
>
> INFO: storring files of previous run
> INFO: Storing Pythia files of previous run
> INFO:
>
>
> I'm not sure how to fix the no file pythia_events.hep currently available issue.
> Please help
> Thanks,
> Hemang
>
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