MadGraph5_aMC@NLO

Bug #1843676
Comment #3

Comment 3 for bug 1843676

Revision history for this message

marco zaro (marco-zaro) wrote on 2019-10-16: Re: [Bug 1843676] Re: Bug for VBS-like processes, with the low_mem_multicore_generation

Hi Olivier,
I attached a patch to the bug report long ago, but i am not sure to commit it in the main branches. Nonetheless, since the fix is there and it is available, I have marked as ‘fix committed’.

Let me know if this is ok with you.

Then, what is the problem with python 3? is it due to the pool/multiprocessing module?

Thanks!

Cheers,

Marco

> On 16 Oct 2019, at 20:54, Olivier Mattelaer <email address hidden> wrote:
>
> Hi Marco,
>
> any update on this?
>
> Olivier
>
> PS: Note that low_mem_multicore_nlo_generation will not be supported
> anymore when we will move to python3 (but if someone spend the needed
> time to fix the issue of that function obviously)
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1843676
>
> Title:
> Bug for VBS-like processes, with the low_mem_multicore_generation
>
> Status in MadGraph5_aMC@NLO:
> New
>
> Bug description:
> Dear Authors,
>
> I would like to generate the NLO QCD correction to the process of
> WWjj->lvlvjj.
>
> What I did was:
>
> generate p p > e+ ve mu- vm~ j j [QCD]
> add process p p > mu+ vm e- ve~ j j [QCD]
>
>
>
> Generating the FKS-subtracted matrix element for Born process is
> relatively quick, ±30mins, but it takes a few hours to generate the
> virtual matrix-elements using Madloop and this step worked fine and
> was complete. After this was complete I then ran,
>
> output ppWWjj
>
>
>
> The problem occurs when I try to create the corresponding output for
> MadGraph5_aMC@NLO.
>
> The generation of matrix-elements in "output" ends at 88/240. Since it
> stops I have no log file to look at and resolve this issue. Also,
> there is no error.
>
> I tried running the process on different machines with my colleagues
> and still, the output suddenly stops.
>
> Note: I am using:
> macOS Mojave Version 10.14
> , MG5_aMC_v2_6_5,
> GNU
> Fortran (GCC) 6.2.0
> , Python 2.7.15
>
>
>
> Any advice into the solution for this would be greatly appreciated.
>
> Kind regards,
>
> Lebohang.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mg5amcnlo/+bug/1843676/+subscriptions

Let me know if this is ok with you.

Then, what is the problem with python 3? is it due to the pool/multiprocessing module?

Thanks!

Cheers,

Marco

> On 16 Oct 2019, at 20:54, Olivier Mattelaer <olivier.mattelaer@gmail.com> wrote:
> 
> Hi Marco,
> 
> any update on this?
> 
> Olivier
> 
> PS: Note that low_mem_multicore_nlo_generation will not be supported
> anymore when we will move to python3 (but if someone spend the needed
> time to fix the issue of that function obviously)
> 
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1843676
> 
> Title:
>  Bug for VBS-like processes, with the low_mem_multicore_generation
> 
> Status in MadGraph5_aMC@NLO:
>  New
> 
> Bug description:
>  Dear Authors,
> 
>  I would like to generate the NLO QCD correction to the process of
>  WWjj->lvlvjj.
> 
> What I did was:
> 
>  generate p p > e+ ve mu- vm~ j j [QCD]
>  add process p p > mu+ vm e- ve~ j j [QCD]
> 
> 
> 
> Generating the FKS-subtracted matrix element for Born process is
>  relatively quick, ±30mins, but it takes a few hours to generate the
>  virtual matrix-elements using Madloop and this step worked fine and
>  was complete. After this was complete I then ran,
> 
>  output ppWWjj
> 
> 
> 
> The problem occurs when I try to create the corresponding output for
>  MadGraph5_aMC@NLO.
> 
>  The generation of matrix-elements in "output" ends at 88/240. Since it
>  stops I have no log file to look at and resolve this issue. Also,
>  there is no error.
> 
>  I tried running the process on different machines with my colleagues
>  and still, the output suddenly stops.
> 
>  Note: I am using:
> macOS Mojave Version 10.14
> , MG5_aMC_v2_6_5, 
> GNU
>  Fortran (GCC) 6.2.0
> , Python 2.7.15
> 
> 
> 
> Any advice into the solution for this would be greatly appreciated.
> 
>  Kind regards,
> 
>  Lebohang.
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mg5amcnlo/+bug/1843676/+subscriptions