add --beamspot option to premix steps

Author: francescobrivio

Configuration/PyReleaseValidation/python/relval_steps.py

@@ -1491,6 +1491,7 @@ def genS(fragment,howMuch):
         {"cfg":"SingleNuE10_cfi",
          "--fast":"",
          "--conditions":"auto:run2_mc",
+         "--beamspot":"DBrealistic",
          "-s":"GEN,SIM,RECOBEFMIX,DIGI",
          "--eventcontent":"PREMIX",
          "--datatier":"PREMIX",
@@ -1537,6 +1538,7 @@ def genS(fragment,howMuch):
         {"cfg":"SingleNuE10_cfi",
          "--fast":"",
          "--conditions":"auto:phase1_2017_realistic",
+         "--beamspot":"DBrealistic",
          "-s":"GEN,SIM,RECOBEFMIX,DIGI",
          "--eventcontent":"PREMIX",
          "--datatier":"PREMIX",
@@ -1586,6 +1588,7 @@ def genS(fragment,howMuch):
         {"cfg":"SingleNuE10_cfi",
          "--fast":"",
          "--conditions":"auto:phase1_2018_realistic",
+         "--beamspot":"DBrealistic",
          "-s":"GEN,SIM,RECOBEFMIX,DIGI",
          "--eventcontent":"PREMIX",
          "--datatier":"PREMIX",
@@ -2101,6 +2104,7 @@ def lhegensim2018ml(fragment,howMuch):
     '-s'            : 'GEN,SIM,DIGI:pdigi_valid',
     '-n'            : '10',
     '--conditions'  : 'auto:run2_mc', # 25ns GT; dedicated dict for 50ns
+    '--beamspot'    : 'DBrealistic',
     '--datatier'    : 'PREMIX',
     '--eventcontent': 'PREMIX',
     '--procModifiers':'premix_stage1',