by default take field from CCDB

Author: sawenzel

MC/bin/o2dpg_sim_workflow.py

@@ -58,7 +58,7 @@
 parser.add_argument('-eA',help='Beam A energy', default=-1) #6369 PbPb, 2.510 pp 5 TeV, 4 pPb
 parser.add_argument('-eB',help='Beam B energy', default=-1)
 parser.add_argument('-col',help='collision system: pp, PbPb, pPb, Pbp, ..., in case of embedding collision system of signal', default='pp')
-parser.add_argument('-field',help='L3 field rounded to kGauss, allowed: values +-2,+-5 and 0; +-5U for uniform field', default='-5')
+parser.add_argument('-field',help='L3 field rounded to kGauss, allowed values: +-2,+-5 and 0; +-5U for uniform field; or "ccdb" to take from conditions database', default='ccdb')
 
 parser.add_argument('-ptHatMin',help='pT hard minimum when no bin requested', default=0)
 parser.add_argument('-ptHatMax',help='pT hard maximum when no bin requested', default=-1)