Changes between Version 12 and Version 13 of Reweight


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Timestamp:
Aug 8, 2015, 8:50:02 PM (9 years ago)
Author:
Olivier Mattelaer
Comment:

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  • Reweight

    v12 v13  
    1313
    1414 == How to get the code
    15  The code is currently (30/06/13) in beta.
    16  In order to download the code, you need to have bazaar install on your computer. Then you can download the code via the command
    17 {{{bzr branch lp:~maddevelopers/madgraph5/2.0.0beta4}}} 
    18 After that in order to update your version. You only need to do:
    19 {{{bzr pull}}}
    20  Those functionalities are going to be release in the 2.0.0beta version of the code.
     15 The code is released with any Madgraph version (since 2.0)
     16
     17 == Do I need special package
     18 Starting from MG5.2.3.2, you need to have f2py on your machine. The easiest way to install f2py is to install numpy (if not already done).
    2119 
    2220 == How to use the code on the flight.
     
    9189The '''-f''' options prevent the question to be asked.
    9290
     91 = Options
     92  Note all the following options will be available in MG5 version 2.3.2
     93   1. "change model <XXX>" performed the reweighting within a new model (you then need to profide a full param_card and not a difference)
     94   2. "change process <XXX>" change the process definition of the process.
     95   3. "change process <XXX> --add" add one process definition of the process to the new list.
     96   4. "change output <i>": Three options: 'default'(i.e. lhef version3 format), '2.0' (i.e. lhef version2 format, the main weight is replace), 'unweight' (a new unweighting is applied on the events sample.)
     97   5. "change helicity <True|False>": perform reweighting for the given helicity (True --default--) or do the sum over helicity.
     98   6. "change rwgt_dir <PATH>": change directory where the computation is performed. This can be use to avoid to recreate/recompile the fortran executable if pointing to a previously existing directory.
     99
     100
    93101 = Input/Output format
    94102