cms-sw/cmssw — pull request #1192 by civanch (2013-10-26 13:35:34+00:00)
Title: speedup MC truth management, addition of check om primary for ECAL RR fo...

Russian roulette is enabled inside ECAl and pre-shower for gamma only is this gamma does not produced by initial gamma, e+, e-. The algorithm to find out mother track ID for a given track is revised and re-written - assuming get valuable CPU speedup.