Request checking script

This page describes the usage of monte carlo request checking script in CMS that uses McM info and gridpacks and does automated patches for certain type of problem in MG5_aMC in the CMSSW setup.

In lxplus, do:

$ git clone [e-mail]:cms-sw/genproductions.git
$ cd genproductions/bin/utils
$ python request_fragment_check.py -h

This will bring up a list of things that the script checks. It also displays the list of optional arguments:

optional arguments:
  -h, --help            show this help message and exit
  --prepid PREPID [PREPID ...]
                        check mcm requests using prepids
  --ticket TICKET       check mcm requests using ticket number
  --bypass_status       don't check request status in mcm
  --bypass_validation   proceed to next prepid even if there are errors
  --apply_many_threads_patch
                        apply the many threads MG5_aMC@NLO LO patch if
                        necessary
  --dev                 Run on DEV instance of McM
  --debug               Print debugging information

Note that the code acceps list of prepids, but a single ticket (not to kill the database with too much access). When you use a list of prepids or the --ticket option locally, you should also specify --bypass_validation.

Unless the --apply_many_threads_patch is specified it won't do any patches but will still check the existence of the patch.